Release: v3.18.3

This reverts commit 68c8839ebb.

.github/workflows/codeql-analysis.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v2.3.4
       with:
         fetch-depth: 2
 

.github/workflows/test.yml

@@ -6,14 +6,14 @@ jobs:
     runs-on: macos-latest
     strategy:
       matrix:
-        api-level: [29]
+        api-level: [ 23, 26, 29 ]
         target: [default]
     steps:
       - name: checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: run tests
-        uses: reactivecircus/android-emulator-runner@v2
+        uses: reactivecircus/android-emulator-runner@v2.17.0
         with:
           api-level: ${{ matrix.api-level }}
           target: ${{ matrix.target }}

.idea/misc.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

.idea/runConfigurations.xml

@@ -3,6 +3,7 @@
   <component name="RunConfigurationProducerService">
     <option name="ignoredProducers">
       <set>
+        <option value="com.android.tools.idea.compose.preview.runconfiguration.ComposePreviewRunConfigurationProducer" />
         <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
         <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
         <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />

README.md

@@ -49,39 +49,6 @@ _OpenTracks_ is a sport tracking application that completely respects your priva
     </tr>
 </table>
 
-## Features:
-* __Tracking:__ track your sport and outdoor activities
-* __Photos and Markers:__ mark interesting locations while tracking (also with photos)
-* __Bluetooth LE sensors:__
-  * heart rate
-  * cycling: speed and cadence
-  * cycling: power meter
-* __Export data:__ export tracks either as KMZ (incl. photos), KML or GPX
-* __No Internet access:__ Internet is not used
-* __Voice announcements__
-* __No advertising__
-* __Privacy:__
-    * _does not contain any in-app analytics_
-    * _does not use Google Play Services_
-    * _has no cloud integration_
-
-__Only required permissions:__
-* _ACCESS_FINE_LOCATION_: required to use the GPS.
-
-An overview of Bluetooth LE sensors that are known to work with OpenTracks is in [README_TESTED_SENSORS.md](README_TESTED_SENSORS.md).
-
-_Please note:_
-_OpenTracks_ does not contain a _map_ (as this would require internet access).
-
-## Custom Dashboards (incl. Map)
-As of v3.3.1 OpenTracks enables to use custom dashboards.
-The reference implementation is [OSMDashboard](https://github.com/OpenTracksApp/OSMDashboard), which presents an OpenStreetMap map (showing the current track, incl. updates).
-The developer documentation is in [README_API.md](README_API.md).
-
-Alternatively, recorded tracks can be shared as KMZ/GPX to installed applications (e.g., [OsmAnd](https://play.google.com/store/apps/details?id=net.osmand)).
-However, this is rather slow and does not provide updates while recording.
-
-
 ## Screenshots
 <div>
     <img width="23%" src="fastlane/metadata/android/en-US/phoneScreenshots/screenshot1.png">
@@ -96,12 +63,54 @@ However, this is rather slow and does not provide updates while recording.
 	<img width="23%" src="fastlane/metadata/android/en-US/phoneScreenshots/screenshot8.png">
 </div>
 
+## Features
+* __Tracking:__ track your sport and outdoor activities
+* __Voice announcements__
+* __Photos and Markers:__ mark interesting locations while tracking
+* __Export:__
+  * export tracks either as KMZ (incl. photos), KML, or GPX
+  * export automatically after each recording (e.g., to sync)
+  * avoid duplication: each exported file contain a random unique identifier (i.e., `opentracks:trackid`)
+* __Altitude:__
+  * gain/loss via barometric sensor (if present)
+  * shown in EGM2008 (above mean sea level); exported as WGS84
+* __Bluetooth LE sensors:__
+  * heart rate
+  * cycling: speed and distance
+  * cycling: cadence
+  * cycling: power meter
+
+### Gadgetbridge integration
+
+OpenTracks can be used with [Gadgetbridge](https://www.gadgetbridge.org/):
+* shows statistics via notification on smart watches (requires Gadgetbridge 0.56.1 or later), and
+* Gadgetbridge's GPX exporter generates `opentracks:trackid` to avoid duplication (Gadgetbridge 0.53.0 or later).
+
+### Privacy
+* __No Internet access:__ Internet is not used
+* __No advertising__
+* __No in-app analytics__
+* __No use of Google Play Services__
+
+__Only required permission:__
+* _ACCESS_FINE_LOCATION_: required to use the GPS.
+
+An overview of Bluetooth LE sensors that are known to work with OpenTracks is in [README_TESTED_SENSORS.md](README_TESTED_SENSORS.md).
+
+## Custom Dashboards (incl. map)
+As of v3.3.1, OpenTracks supports custom dashboards.
+The reference implementation is [OSMDashboard](https://github.com/OpenTracksApp/OSMDashboard), which presents an OpenStreetMap map (showing the current track, incl. updates).
+The developer documentation is in [README_API.md](README_API.md).
+
+Alternatively, recorded tracks can be shared as KMZ/GPX with installed applications (e.g., [OsmAnd](https://play.google.com/store/apps/details?id=net.osmand)).
+However, this is rather slow and does not provide updates while recording.
+
 ## Project history
 
 _OpenTracks_ is based upon Google _My Tracks app_ ([code](https://code.google.com/archive/p/mytracks/)).
 Initially, _My Tracks_ was initially released by Google in 2010 as [open-source software](http://google-latlong.blogspot.fr/2010/05/code-for-my-tracks-is-now-yours.html).
 In 2016, [Google decided to discontinue](https://support.google.com/maps/answer/6333516) _My Tracks_ and stopped distributing it via the Google Play store in April 2016.
-The [Plonk42](https://github.com/plonk42) conducted some maintenance work until 2016, so _My Tracks_ could still be used (based upon version _Google's MyTracks_ version 2.0.6).
+Then [Plonk42](https://github.com/plonk42) conducted some maintenance work until 2016, so _My Tracks_ could still be used (based upon version _Google's MyTracks_ version 2.0.6).
 Plonk42's version is available [here](https://github.com/Plonk42/mytracks).
 In 2019, _OpenTracks_ was forked from Plonk42's _My Tracks_ and major rework was conducted.
 
@@ -114,11 +123,11 @@ Rework of _OpenTracks_ included:
 * removing calorie estimation and activity estimation,
 * removing support for ANT+ and Classic Bluetooth,
 * adding support for Bluetooth LE heart rate sensors,
-* removing Protobuf (store sensosensorr data in SQLite columns directly), and
+* removing Protobuf (store sensor data in SQLite columns directly), and
 * removing Android Service API for other apps.
 
 Artwork, logos and user interface remained more or less unchanged.
 
 More information about _Google My Tracks_:
 * [Wikipedia page](https://en.wikipedia.org/wiki/MyTracks)
-* [Google code archive](https://code.google.com/archive/p/mytracks/)
+* [Google code archive](https://code.google.com/archive/p/mytracks/)

README_TESTED_SENSORS.md

@@ -28,6 +28,8 @@ However, often only one value is provided.
 
 * Wahoo Speed (Model: WFRPMSPD)
 
+* CooSpo cadence and speed sensor (model: BK467)
+
 ### Cadence
 
 * Garmin Cadence Sensor 2
@@ -48,4 +50,5 @@ Also the distance is not computed.
 * QUARQ Red DZero Powermeter
 * Tacx Satori Smart
 * Wahoo Kickr v4.0
+* Rotor 2INpower DM Road (only supports power measurement, cadence measurement is propietary @ firmware v1.061)
 

build.gradle

@@ -3,17 +3,17 @@ apply plugin: 'com.android.application'
 buildscript {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.3'
+        classpath 'com.android.tools.build:gradle:4.2.1'
     }
 }
 
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }
 
@@ -49,10 +49,14 @@ android {
         viewBinding = true
     }
 
+    aaptOptions {
+        cruncherEnabled = false
+    }
+
     defaultConfig {
         applicationId "de.dennisguse.opentracks"
-        versionCode 4009
-        versionName "v3.17.3"
+        versionCode 4143
+        versionName "v3.18.3"
 
         buildConfigField "String", "VERSION_NAME_FULL", "\"${getVersionName()}\""
 
@@ -86,10 +90,10 @@ android {
 }
 
 dependencies {
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0-alpha05'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0-alpha06'
     coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
 
-    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'androidx.appcompat:appcompat:1.3.0'
     implementation 'androidx.preference:preference:1.1.1'
     implementation 'androidx.documentfile:documentfile:1.0.1'
     implementation 'com.google.android.material:material:1.3.0'
@@ -99,5 +103,5 @@ dependencies {
     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
     androidTestImplementation 'androidx.test:rules:1.3.0'
     androidTestImplementation 'androidx.test:runner:1.3.0'
-    androidTestImplementation 'org.mockito:mockito-android:3.8.0'
+    androidTestImplementation 'org.mockito:mockito-android:3.10.0'
 }

fastlane/metadata/android/en-US/changelogs/4046.txt

@@ -0,0 +1,15 @@
+v3.18.0: OpenTracks
+
+Changes:
+- Altitude is shown in EGM2008 (stored/exported as WGS84)
+
+Bugfix:
+- Fixed memory leak (introduced in v3.17.0)
+- Charts: altitude should be in M/FT (introduced in v3.17.1)
+- Charts: while recording was not correctly updated (introduced in v3.17.3)
+- TrackDataHub did not account for recordingDistanceInterval (introduced in v3.17.2)
+
+Developer:
+- Disable PNG crunching (reproducible build)
+- Refactored TrackImporter and optimized KMZ import
+- Use LiveData for TrackRecordingService to UI communication (removing memory leak)

fastlane/metadata/android/en-US/changelogs/4092.txt

@@ -0,0 +1,13 @@
+v3.18.1: OpenTracks
+
+Changes:
+- Deleting tracks is handled by a service
+- Uninstall deletes all data (i.e., hasFragileData=false)
+
+Bugfixes:
+- Race condition: crash while recording and switching OpenTracks into background
+- Search in track list was not working
+- Cycling speed sensor: distance computation was wrong (only affected statistics)
+
+Developer:
+- ControllerFragment replaces TrackController

fastlane/metadata/android/en-US/changelogs/4098.txt

@@ -0,0 +1,7 @@
+v3.18.2: OpenTracks
+
+Bugfix:
+- Crash while moving from charts to another activity/app #787
+
+Developer:
+- TrackRecordingService pushes data to UI while recording

fastlane/metadata/android/en-US/changelogs/4143.txt

@@ -0,0 +1,13 @@
+v3.18.3: OpenTracks
+
+Changes:
+- KML parsing does not require order of when/gx:coords
+- Track importer: reorders locations by timestamp
+- Removed rendered launcher icons for Android < 8.0.0 (API 26)
+  (might look slightly different, but avoid problems for reproducible builds)
+
+Bugfix:
+- Avoid crash in charts due to race condition
+
+Developer:
+- Split GPX and KML importer (removed common inheritance)

fastlane/metadata/android/en-US/full_description.txt

@@ -3,9 +3,9 @@ OpenTracks is a sport tracking application that completely respects your privacy
 Features:
 * Sport tracking: track your sport and outdoor activities
 * Photos and markers: mark interesting locations while tracking
-* Supports Bluetooth LE sensors:
-  * heart rate
-  * cycling: speed and cadence
-  * cycling: power meter
-* Export data: export tracks either as KML or GPX
-* No Internet access: Internet is not used
+* Altitude gain and loss: via barometric sensor
+* Altitude shown in EGM2008 (above mean sea level); exported as WGS84
+* Voice announcements
+* Supports Bluetooth LE sensors: heart rate, speed and distance (cycling), cadence (cycling), and power meter (cycling)
+* Export data: export tracks either as KMZ (incl. photos), KML,  or GPX
+* No Internet access: Internet is not used

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.0-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -82,6 +82,7 @@ esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
+
 # Determine the Java command to use to start the JVM.
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
@@ -129,6 +130,7 @@ fi
 if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    
     JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath

gradlew.bat

@@ -1,103 +1,104 @@
-@rem
-@rem Copyright 2015 the original author or authors.
-@rem
-@rem Licensed under the Apache License, Version 2.0 (the "License");
-@rem you may not use this file except in compliance with the License.
-@rem You may obtain a copy of the License at
-@rem
-@rem      https://www.apache.org/licenses/LICENSE-2.0
-@rem
-@rem Unless required by applicable law or agreed to in writing, software
-@rem distributed under the License is distributed on an "AS IS" BASIS,
-@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-@rem See the License for the specific language governing permissions and
-@rem limitations under the License.
-@rem
-
-@if "%DEBUG%" == "" @echo off
-@rem ##########################################################################
-@rem
-@rem  Gradle startup script for Windows
-@rem
-@rem ##########################################################################
-
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
-
-set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
-set APP_BASE_NAME=%~n0
-set APP_HOME=%DIRNAME%
-
-@rem Resolve any "." and ".." in APP_HOME to make it shorter.
-for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
-
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
-
-@rem Find java.exe
-if defined JAVA_HOME goto findJavaFromJavaHome
-
-set JAVA_EXE=java.exe
-%JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
-
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:findJavaFromJavaHome
-set JAVA_HOME=%JAVA_HOME:"=%
-set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-
-if exist "%JAVA_EXE%" goto init
-
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-
-:execute
-@rem Setup the command line
-
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
-
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

src/androidTest/java/de/dennisguse/opentracks/EspressoCategoryUnitTest.java

@@ -0,0 +1,185 @@
+package de.dennisguse.opentracks;
+
+
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewParent;
+
+import androidx.test.espresso.DataInteraction;
+import androidx.test.espresso.UiController;
+import androidx.test.espresso.ViewAction;
+import androidx.test.espresso.ViewInteraction;
+import androidx.test.filters.LargeTest;
+import androidx.test.rule.ActivityTestRule;
+import androidx.test.rule.GrantPermissionRule;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.hamcrest.Description;
+import org.hamcrest.Matcher;
+import org.hamcrest.TypeSafeMatcher;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static androidx.test.espresso.Espresso.onData;
+import static androidx.test.espresso.Espresso.onView;
+import static androidx.test.espresso.action.ViewActions.click;
+import static androidx.test.espresso.action.ViewActions.scrollTo;
+import static androidx.test.espresso.assertion.ViewAssertions.matches;
+import static androidx.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static androidx.test.espresso.matcher.ViewMatchers.withClassName;
+import static androidx.test.espresso.matcher.ViewMatchers.withContentDescription;
+import static androidx.test.espresso.matcher.ViewMatchers.withId;
+import static androidx.test.espresso.matcher.ViewMatchers.withText;
+import static org.hamcrest.Matchers.allOf;
+import static org.hamcrest.Matchers.anything;
+import static org.hamcrest.Matchers.is;
+
+/**
+ * Espresso test that checks the unit for activity category selected.
+ * Also it checks that unit is properly when user change from a pace activity to an speed one.
+ */
+@LargeTest
+@RunWith(AndroidJUnit4.class)
+public class EspressoCategoryUnitTest {
+
+    @Rule
+    public ActivityTestRule<TrackListActivity> mActivityTestRule = new ActivityTestRule<>(TrackListActivity.class);
+
+    @Rule
+    public GrantPermissionRule mGrantPermissionRule =
+            GrantPermissionRule.grant(
+                    "android.permission.ACCESS_FINE_LOCATION");
+
+    @Test
+    public void changeBetweenCategoryUpdateProperlyUnitTest() {
+        // Start record.
+        ViewInteraction appCompatImageButton = onView(
+                allOf(withId(R.id.controller_record), withContentDescription("Record"),
+                        childAtPosition(
+                                allOf(withId(R.id.controller_container),
+                                        childAtPosition(
+                                                withId(R.id.controller_fragment),
+                                                0)),
+                                0),
+                        isDisplayed()));
+        appCompatImageButton.perform(click());
+
+        {
+            // Change to running activity (pace activity).
+            ViewInteraction appCompatImageView = onView(
+                    allOf(withId(R.id.stats_activity_type_icon),
+                            childAtPosition(
+                                    childAtPosition(
+                                            withClassName(is("android.widget.ScrollView")),
+                                            0),
+                                    7)));
+            appCompatImageView.perform(scrollTo(), click());
+
+            DataInteraction imageView = onData(anything())
+                    .inAdapterView(allOf(withId(R.id.choose_activity_type_grid_view),
+                            childAtPosition(
+                                    withClassName(is("android.widget.LinearLayout")),
+                                    0)))
+                    .atPosition(1);
+            imageView.perform(click());
+        }
+
+        // Pace (min/km) in all fields.
+        {
+            ViewInteraction textView = onView(allOf(withId(R.id.stats_speed_unit)));
+            textView.perform(waitFor(2000));
+            textView.check(matches(withText("min/km")));
+        }
+        {
+            ViewInteraction textView = onView(allOf(withId(R.id.stats_average_speed_unit)));
+            textView.check(matches(withText("min/km")));
+        }
+        {
+            ViewInteraction textView = onView(allOf(withId(R.id.stats_max_speed_unit)));
+            textView.check(matches(withText("min/km")));
+        }
+        {
+            ViewInteraction textView = onView(allOf(withId(R.id.stats_moving_speed_unit)));
+            textView.check(matches(withText("min/km")));
+        }
+
+        {
+            // Change to biking activity (speed activity).
+            ViewInteraction appCompatImageView = onView(
+                    allOf(withId(R.id.stats_activity_type_icon),
+                            childAtPosition(
+                                    childAtPosition(
+                                            withClassName(is("android.widget.ScrollView")),
+                                            0),
+                                    7)));
+            appCompatImageView.perform(scrollTo(), click());
+
+            DataInteraction imageView = onData(anything())
+                    .inAdapterView(allOf(withId(R.id.choose_activity_type_grid_view),
+                            childAtPosition(
+                                    withClassName(is("android.widget.LinearLayout")),
+                                    0)))
+                    .atPosition(9);
+            imageView.perform(click());
+        }
+
+        // Speed (km/h) in all fields.
+        {
+            ViewInteraction textView = onView(allOf(withId(R.id.stats_speed_unit)));
+            textView.perform(waitFor(2000));
+            textView.check(matches(withText("km/h")));
+        }
+        {
+            ViewInteraction textView = onView(allOf(withId(R.id.stats_average_speed_unit)));
+            textView.check(matches(withText("km/h")));
+        }
+        {
+            ViewInteraction textView = onView(allOf(withId(R.id.stats_max_speed_unit)));
+            textView.check(matches(withText("km/h")));
+        }
+        {
+            ViewInteraction textView = onView(allOf(withId(R.id.stats_moving_speed_unit)));
+            textView.check(matches(withText("km/h")));
+        }
+    }
+
+    private static Matcher<View> childAtPosition(
+            final Matcher<View> parentMatcher, final int position) {
+
+        return new TypeSafeMatcher<View>() {
+            @Override
+            public void describeTo(Description description) {
+                description.appendText("Child at position " + position + " in parent ");
+                parentMatcher.describeTo(description);
+            }
+
+            @Override
+            public boolean matchesSafely(View view) {
+                ViewParent parent = view.getParent();
+                return parent instanceof ViewGroup && parentMatcher.matches(parent)
+                        && view.equals(((ViewGroup) parent).getChildAt(position));
+            }
+        };
+    }
+
+    private static ViewAction waitFor(final long duration_ms) {
+        return new ViewAction() {
+
+            @Override
+            public String getDescription() {
+                return "Wait for milliseconds.";
+            }
+
+            @Override
+            public Matcher<View> getConstraints() {
+                return isDisplayed();
+            }
+
+            @Override
+            public void perform(UiController uiController, final View view) {
+                uiController.loopMainThreadForAtLeast(duration_ms);
+            }
+        };
+    }
+}

src/androidTest/java/de/dennisguse/opentracks/EspressoDeleteTrackTest.java

@@ -0,0 +1,285 @@
+package de.dennisguse.opentracks;
+
+
+import android.app.ActivityManager;
+import android.app.Instrumentation;
+import android.content.Context;
+import android.util.Log;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewParent;
+import android.widget.ListView;
+
+import androidx.test.espresso.Espresso;
+import androidx.test.espresso.IdlingResource;
+import androidx.test.espresso.UiController;
+import androidx.test.espresso.ViewAction;
+import androidx.test.espresso.ViewInteraction;
+import androidx.test.espresso.action.MotionEvents;
+import androidx.test.espresso.assertion.ViewAssertions;
+import androidx.test.ext.junit.rules.ActivityScenarioRule;
+import androidx.test.filters.LargeTest;
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.rule.GrantPermissionRule;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.hamcrest.Description;
+import org.hamcrest.Matcher;
+import org.hamcrest.TypeSafeMatcher;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import de.dennisguse.opentracks.services.TrackDeleteService;
+
+import static androidx.test.espresso.Espresso.onData;
+import static androidx.test.espresso.Espresso.onView;
+import static androidx.test.espresso.Espresso.pressBack;
+import static androidx.test.espresso.action.ViewActions.click;
+import static androidx.test.espresso.action.ViewActions.scrollTo;
+import static androidx.test.espresso.assertion.ViewAssertions.matches;
+import static androidx.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static androidx.test.espresso.matcher.ViewMatchers.withContentDescription;
+import static androidx.test.espresso.matcher.ViewMatchers.withId;
+import static androidx.test.espresso.matcher.ViewMatchers.withText;
+import static org.hamcrest.Matchers.allOf;
+import static org.hamcrest.Matchers.anything;
+
+@LargeTest
+@RunWith(AndroidJUnit4.class)
+public class EspressoDeleteTrackTest {
+
+    @Rule
+    public ActivityScenarioRule<TrackListActivity> mActivityTestRule = new ActivityScenarioRule<>(TrackListActivity.class);
+
+    @Rule
+    public GrantPermissionRule mGrantPermissionRule = GrantPermissionRule.grant("android.permission.ACCESS_FINE_LOCATION");
+
+    private MyIdlingResource idlingResource;
+
+    @Before
+    public void registerIntentServiceIdlingResource() {
+        Instrumentation instrumentation
+                = InstrumentationRegistry.getInstrumentation();
+        idlingResource = new MyIdlingResource(instrumentation.getTargetContext());
+        Espresso.registerIdlingResources(idlingResource);
+    }
+
+    @After
+    public void unregisterIntentServiceIdlingResource() {
+        Espresso.unregisterIdlingResources(idlingResource);
+    }
+
+    @Test
+    public void espressoDeleteTrackTest() {
+        int countBefore;
+
+        {
+            // TrackListActivity: start recording
+            ViewInteraction trackControllerRecordButton = onView(withId(R.id.controller_record));
+            trackControllerRecordButton.perform(click());
+        }
+
+        {
+            // TrackRecordingActivity
+            ViewInteraction trackControllerRecordButton = onView(withId(R.id.controller_record));
+            ViewInteraction trackControllerStopButton = onView(withId(R.id.controller_stop));
+
+            // wait; stay recording
+            trackControllerRecordButton.perform(waitFor(5000));
+
+            // stop;
+            trackControllerStopButton.perform(veryLongTouch(1600));
+        }
+
+        // back
+        pressBack();
+
+        // get number of items before deleting a track
+        countBefore = numberOfItemsListView();
+
+        // select track
+        onData(anything()).inAdapterView(withId(R.id.track_list)).atPosition(0).perform(veryLongTouch(5000));
+
+        // open menu and delete selected track
+        ViewInteraction overflowMenuButton = onView(
+                allOf(withContentDescription("More options"),
+                        childAtPosition(
+                                childAtPosition(
+                                        withId(R.id.toolbar),
+                                        2),
+                                2),
+                        isDisplayed()));
+        overflowMenuButton.perform(click());
+
+        ViewInteraction appCompatTextView = onView(
+                allOf(withId(R.id.title), withText("Delete"),
+                        childAtPosition(
+                                childAtPosition(
+                                        withId(R.id.content),
+                                        0),
+                                0),
+                        isDisplayed()));
+        appCompatTextView.perform(click());
+
+        ViewInteraction appCompatButton = onView(
+                allOf(withId(android.R.id.button1), withText("Yes"),
+                        childAtPosition(
+                                childAtPosition(
+                                        withId(R.id.buttonPanel),
+                                        0),
+                                3)));
+        appCompatButton.perform(scrollTo(), click());
+
+        // check number of items after delete
+        onView(withId(R.id.track_list)).check(ViewAssertions.matches(withListSize(countBefore - 1)));
+    }
+
+    private static Matcher<View> childAtPosition(
+            final Matcher<View> parentMatcher, final int position) {
+
+        return new TypeSafeMatcher<View>() {
+            @Override
+            public void describeTo(Description description) {
+                description.appendText("Child at position " + position + " in parent ");
+                parentMatcher.describeTo(description);
+            }
+
+            @Override
+            public boolean matchesSafely(View view) {
+                ViewParent parent = view.getParent();
+                return parent instanceof ViewGroup && parentMatcher.matches(parent)
+                        && view.equals(((ViewGroup) parent).getChildAt(position));
+            }
+        };
+    }
+
+    public static Matcher<View> withListSize (final int size) {
+        return new TypeSafeMatcher<View> () {
+            @Override public boolean matchesSafely (final View view) {
+                return ((ListView) view).getCount () == size;
+            }
+
+            @Override public void describeTo (final Description description) {
+                description.appendText ("ListView should have " + size + " items");
+            }
+        };
+    }
+
+    private static ViewAction waitFor(final long duration_ms) {
+        return new ViewAction() {
+
+            @Override
+            public String getDescription() {
+                return "Wait for milliseconds.";
+            }
+
+            @Override
+            public Matcher<View> getConstraints() {
+                return isDisplayed();
+            }
+
+            @Override
+            public void perform(UiController uiController, final View view) {
+                uiController.loopMainThreadForAtLeast(duration_ms);
+            }
+        };
+    }
+
+    private static ViewAction veryLongTouch(final int duration_ms) {
+        return new ViewAction() {
+            @Override
+            public String getDescription() {
+                return "Perform long touch.";
+            }
+
+            @Override
+            public Matcher<View> getConstraints() {
+                return isDisplayed();
+            }
+
+            @Override
+            public void perform(UiController uiController, final View view) {
+                // Get view absolute position
+                int[] location = new int[2];
+                view.getLocationOnScreen(location);
+
+                // Offset coordinates by view position
+                float[] coordinates = new float[]{location[0] + 1, location[1] + 1};
+
+                // Send down event, pause, and send up
+                MotionEvent down = MotionEvents.sendDown(uiController, coordinates, new float[]{1f, 1f}).down;
+                uiController.loopMainThreadForAtLeast(duration_ms);
+                MotionEvents.sendUp(uiController, down, coordinates);
+            }
+        };
+    }
+
+    private int numberOfItemsListView() {
+        final int[] counts = new int[1];
+        onView(withId(R.id.track_list)).check(matches(new TypeSafeMatcher<View>() {
+            @Override
+            public boolean matchesSafely(View view) {
+                ListView listView = (ListView) view;
+
+                counts[0] = listView.getCount();
+
+                return true;
+            }
+
+            @Override
+            public void describeTo(Description description) {
+
+            }
+        }));
+
+        return counts[0];
+    }
+
+
+    private class MyIdlingResource implements IdlingResource {
+
+        private Context context;
+        private ResourceCallback resourceCallback;
+
+        public MyIdlingResource(Context context) {
+            this.context = context;
+        }
+
+        @Override
+        public String getName() {
+            return MyIdlingResource.class.getName();
+        }
+
+        @Override
+        public void registerIdleTransitionCallback(IdlingResource.ResourceCallback resourceCallback) {
+            this.resourceCallback = resourceCallback;
+        }
+
+        @Override
+        public boolean isIdleNow() {
+            boolean idle = !isDeleteServiceRunning();
+            if (idle && resourceCallback != null) {
+                resourceCallback.onTransitionToIdle();
+            }
+            return idle;
+        }
+
+        private boolean isDeleteServiceRunning() {
+            ActivityManager manager =
+                    (ActivityManager) context.getSystemService(
+                            Context.ACTIVITY_SERVICE);
+            for (ActivityManager.RunningServiceInfo info :
+                    manager.getRunningServices(Integer.MAX_VALUE)) {
+                if (TrackDeleteService.class.getName().equals(
+                        info.service.getClassName())) {
+                    return true;
+                }
+            }
+            return false;
+        }
+    }
+}

src/androidTest/java/de/dennisguse/opentracks/EspressoUITest.java

@@ -19,10 +19,13 @@ import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import static androidx.test.espresso.Espresso.onData;
 import static androidx.test.espresso.Espresso.onView;
 import static androidx.test.espresso.action.ViewActions.click;
+import static androidx.test.espresso.assertion.ViewAssertions.matches;
 import static androidx.test.espresso.matcher.ViewMatchers.isDisplayed;
 import static androidx.test.espresso.matcher.ViewMatchers.withId;
+import static org.hamcrest.Matchers.anything;
 
 @LargeTest
 @RunWith(AndroidJUnit4.class)
@@ -39,13 +42,13 @@ public class EspressoUITest {
     public void record_pause_resume_stop() {
         {
             // TrackListActivity: start recording
-            ViewInteraction trackControllerRecordButton = onView(withId(R.id.track_controller_record));
+            ViewInteraction trackControllerRecordButton = onView(withId(R.id.controller_record));
             trackControllerRecordButton.perform(click());
         }
         {
             // TrackRecordingActivity
-            ViewInteraction trackControllerRecordButton = onView(withId(R.id.track_controller_record));
-            ViewInteraction trackControllerStopButton = onView(withId(R.id.track_controller_stop));
+            ViewInteraction trackControllerRecordButton = onView(withId(R.id.controller_record));
+            ViewInteraction trackControllerStopButton = onView(withId(R.id.controller_stop));
 
             // wait; stay recording
             trackControllerRecordButton.perform(waitFor(5000));
@@ -72,13 +75,13 @@ public class EspressoUITest {
     public void record_move_through_tabs() {
         {
             // TrackListActivity: start recording
-            ViewInteraction trackControllerRecordButton = onView(withId(R.id.track_controller_record));
+            ViewInteraction trackControllerRecordButton = onView(withId(R.id.controller_record));
             trackControllerRecordButton.perform(click());
         }
         {
             // TrackRecordingActivity
             ViewInteraction tabLayout = onView(withId(R.id.track_detail_activity_tablayout));
-            ViewInteraction trackControllerStopButton = onView(withId(R.id.track_controller_stop));
+            ViewInteraction trackControllerStopButton = onView(withId(R.id.controller_stop));
 
             tabLayout.perform(selectTabAtIndex(1));
             tabLayout.perform(waitFor(1000));
@@ -97,6 +100,13 @@ public class EspressoUITest {
         }
     }
 
+    @LargeTest
+    @Test
+    public void selectAndDeleteTrack() {
+        onView(withId(R.id.track_list)).check(matches(isDisplayed()));
+        onData(anything()).inAdapterView(withId(R.id.track_list)).atPosition(0).perform(veryLongTouch(2000));
+    }
+
     private static ViewAction veryLongTouch(final int duration_ms) {
         return new ViewAction() {
             @Override

src/androidTest/java/de/dennisguse/opentracks/chart/ChartPointTest.java

@@ -54,7 +54,7 @@ public class ChartPointTest {
         ChartPoint point = new ChartPoint(statistics, TrackStubUtils.createDefaultTrackPoint(), Speed.of(10), 50, false, true);
 
         // then
-        assertEquals(0.05, point.getAltitude(), 0.01);
+        assertEquals(50, point.getAltitude(), 0.01);
         assertEquals(36, point.getSpeed(), 0.01);
         assertEquals(1.66, point.getPace(), 0.01);
     }

src/androidTest/java/de/dennisguse/opentracks/content/data/TrackPointTest.java

@@ -1,10 +1,13 @@
 package de.dennisguse.opentracks.content.data;
 
+import android.location.Location;
+
 import org.junit.Test;
 
 import java.time.Instant;
 import java.time.temporal.ChronoUnit;
 
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
@@ -25,4 +28,35 @@ public class TrackPointTest {
 
         assertFalse(tp.isRecent());
     }
+
+    @Test
+    public void distanceToPrevious() {
+        Location l1 = new Location("test");
+        l1.setLatitude(0);
+        l1.setLongitude(0.0001);
+        TrackPoint tp1 = new TrackPoint(l1);
+
+        Location l2 = new Location("test");
+        l2.setLatitude(0);
+        l2.setLongitude(0.0002);
+        TrackPoint tp2 = new TrackPoint(l2);
+
+        // without sensor distance
+        assertEquals(11.13, tp2.distanceToPrevious(tp1).toM(), 0.01);
+
+        // tp1 has sensor distance
+        tp1.setSensorDistance(Distance.of(5));
+        tp1.setSensorDistance(null);
+        assertEquals(11.13, tp2.distanceToPrevious(tp1).toM(), 0.01);
+
+        // tp2 has sensor distance
+        tp1.setSensorDistance(null);
+        tp2.setSensorDistance(Distance.of(5));
+        assertEquals(5, tp2.distanceToPrevious(tp1).toM(), 0.01);
+
+        // tp1 and tp2 have sensor distance
+        tp1.setSensorDistance(Distance.of(10));
+        tp2.setSensorDistance(Distance.of(5));
+        assertEquals(5, tp2.distanceToPrevious(tp1).toM(), 0.01);
+    }
 }

src/androidTest/java/de/dennisguse/opentracks/content/sensor/SensorDataCyclingTest.java

@@ -5,6 +5,7 @@ import androidx.test.ext.junit.runners.AndroidJUnit4;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import de.dennisguse.opentracks.content.data.Distance;
 import de.dennisguse.opentracks.util.UintUtils;
 
 import static org.junit.Assert.assertEquals;
@@ -100,7 +101,7 @@ public class SensorDataCyclingTest {
         SensorDataCycling.DistanceSpeed current = new SensorDataCycling.DistanceSpeed("sensorAddress", "sensorName", 2, 8016);
 
         // when
-        current.compute(previous, 2150);
+        current.compute(previous, Distance.ofMM(2150));
 
         // then
         assertEquals(2.15, current.getValue().distance.toM(), 0.01);
@@ -114,7 +115,7 @@ public class SensorDataCyclingTest {
         SensorDataCycling.DistanceSpeed current = new SensorDataCycling.DistanceSpeed("sensorAddress", "sensorName", 0, 2048);
 
         // when
-        current.compute(previous, 2000);
+        current.compute(previous, Distance.ofMM(2000));
 
         // then
         assertEquals(2, current.getValue().distance.toM(), 0.01);

src/androidTest/java/de/dennisguse/opentracks/fragments/ChartFragmentTest.java

@@ -1,69 +0,0 @@
-/*
- * Copyright 2012 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package de.dennisguse.opentracks.fragments;
-
-import android.os.Looper;
-
-import androidx.test.core.app.ApplicationProvider;
-import androidx.test.ext.junit.runners.AndroidJUnit4;
-
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import de.dennisguse.opentracks.chart.ChartView;
-import de.dennisguse.opentracks.content.data.Distance;
-
-/**
- * Tests {@link ChartFragment}.
- *
- * @author Youtao Liu
- */
-//TODO Add tests that check ChartFragment
-@RunWith(AndroidJUnit4.class)
-public class ChartFragmentTest {
-
-    private static final double HOURS_PER_UNIT = 60.0;
-
-    private ChartFragment chartFragment;
-
-    @BeforeClass
-    public static void preSetUp() {
-        // Prepare looper for Android's message queue
-        if (Looper.myLooper() == null) Looper.prepare();
-    }
-
-    @AfterClass
-    public static void finalTearDown() {
-        if (Looper.myLooper() != null) Looper.myLooper().quit();
-    }
-
-    @Before
-    public void setUp() {
-        boolean chartByDistance = false;
-        chartFragment = ChartFragment.newInstance(chartByDistance);
-        chartFragment.setChartView(new ChartView(ApplicationProvider.getApplicationContext(), chartByDistance));
-        chartFragment.setRecordingDistanceInterval(Distance.of(50));
-    }
-
-    @Test
-    public void nothing() {
-        //TODO
-    }
-}

src/androidTest/java/de/dennisguse/opentracks/io/file/importer/ExportImportTest.java

@@ -3,24 +3,26 @@ package de.dennisguse.opentracks.io.file.importer;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
+import android.net.Uri;
 import android.os.Looper;
 import android.util.Log;
 
 import androidx.preference.PreferenceManager;
 import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 import androidx.test.filters.LargeTest;
 import androidx.test.rule.GrantPermissionRule;
 import androidx.test.rule.ServiceTestRule;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-import org.junit.runners.JUnit4;
 
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
 import java.io.InputStream;
 import java.time.Instant;
 import java.util.ArrayList;
@@ -30,6 +32,7 @@ import java.util.concurrent.TimeoutException;
 import java.util.stream.Collectors;
 
 import de.dennisguse.opentracks.R;
+import de.dennisguse.opentracks.content.data.Altitude;
 import de.dennisguse.opentracks.content.data.Distance;
 import de.dennisguse.opentracks.content.data.Marker;
 import de.dennisguse.opentracks.content.data.Speed;
@@ -41,7 +44,6 @@ import de.dennisguse.opentracks.io.file.TrackFileFormat;
 import de.dennisguse.opentracks.io.file.exporter.TrackExporter;
 import de.dennisguse.opentracks.services.TrackRecordingService;
 import de.dennisguse.opentracks.stats.TrackStatistics;
-import de.dennisguse.opentracks.util.PreferencesUtils;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
@@ -53,7 +55,7 @@ import static org.junit.Assert.assertTrue;
  * Export a track to {@link TrackFileFormat} and verify that the import is identical.
  * <p>
  */
-@RunWith(JUnit4.class)
+@RunWith(AndroidJUnit4.class)
 public class ExportImportTest {
 
     private static final String TAG = ExportImportTest.class.getSimpleName();
@@ -71,7 +73,6 @@ public class ExportImportTest {
     }
 
     private final Context context = ApplicationProvider.getApplicationContext();
-    private final SharedPreferences sharedPreferences = PreferencesUtils.getSharedPreferences(context);
 
     private final ContentProviderUtils contentProviderUtils = new ContentProviderUtils(context);
 
@@ -79,6 +80,9 @@ public class ExportImportTest {
     private static final String TRACK_CATEGORY = "the category";
     private static final String TRACK_DESCRIPTION = "the description";
 
+    private File tmpFile;
+    private Uri tmpFileUri;
+
     private Track track;
     private List<Marker> markers = new ArrayList<>();
     private List<TrackPoint> trackPoints = new ArrayList<>();
@@ -86,6 +90,22 @@ public class ExportImportTest {
     private Track.Id trackId;
     private Track.Id importTrackId;
 
+    private TrackImporter trackImporter;
+
+    @Before
+    public void fileSetup() throws IOException {
+        tmpFile = File.createTempFile("test", "test", context.getFilesDir());
+        tmpFileUri = Uri.fromFile(tmpFile);
+
+        trackImporter = new TrackImporter(context, contentProviderUtils, Distance.of(10), Distance.of(200), true);
+    }
+
+    @After
+    public void FileTearDown() {
+        tmpFile.deleteOnExit();
+        tmpFileUri = null;
+    }
+
     public void setUp(boolean hasSensorDistance) throws TimeoutException {
         TrackRecordingService service = ((TrackRecordingService.Binder) mServiceRule.bindService(new Intent(context, TrackRecordingService.class)))
                 .getService();
@@ -138,7 +158,7 @@ public class ExportImportTest {
 
     @LargeTest
     @Test
-    public void kml_with_trackdetail() throws TimeoutException {
+    public void kml_with_trackdetail() throws TimeoutException, IOException {
         setUp(false);
 
         // given
@@ -148,14 +168,13 @@ public class ExportImportTest {
 
         // when
         // 1. export
-        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-        trackExporter.writeTrack(track, outputStream);
+        trackExporter.writeTrack(track, context.getContentResolver().openOutputStream(tmpFileUri));
         contentProviderUtils.deleteTrack(context, trackId);
 
         // 2. import
-        InputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray());
-        AbstractFileTrackImporter trackImporter = new KmlFileTrackImporter(context);
-        importTrackId = trackImporter.importFile(inputStream).get(0);
+        InputStream inputStream = context.getContentResolver().openInputStream(tmpFileUri);
+        XMLImporter importer = new XMLImporter(new KmlTrackImporter(context, trackImporter));
+        importTrackId = importer.importFile(inputStream).get(0);
 
         // then
         // 1. track
@@ -179,7 +198,7 @@ public class ExportImportTest {
 
     @LargeTest
     @Test
-    public void kml_with_trackdetail_and_sensordata() throws TimeoutException {
+    public void kml_with_trackdetail_and_sensordata() throws TimeoutException, IOException {
         setUp(true);
 
         // given
@@ -189,14 +208,52 @@ public class ExportImportTest {
 
         // when
         // 1. export
-        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-        trackExporter.writeTrack(track, outputStream);
+        trackExporter.writeTrack(track, context.getContentResolver().openOutputStream(tmpFileUri));
         contentProviderUtils.deleteTrack(context, trackId);
 
         // 2. import
-        InputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray());
-        AbstractFileTrackImporter trackImporter = new KmlFileTrackImporter(context);
-        importTrackId = trackImporter.importFile(inputStream).get(0);
+        InputStream inputStream = context.getContentResolver().openInputStream(tmpFileUri);
+        XMLImporter importer = new XMLImporter(new KmlTrackImporter(context, trackImporter));
+        importTrackId = importer.importFile(inputStream).get(0);
+
+        // then
+        // 1. track
+        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
+        assertNotNull(importedTrack);
+        assertEquals(track.getCategory(), importedTrack.getCategory());
+        assertEquals(track.getDescription(), importedTrack.getDescription());
+        assertEquals(track.getName(), importedTrack.getName());
+        assertEquals(track.getIcon(), importedTrack.getIcon());
+
+        // 2. trackpoints
+        assertTrackpoints(trackPoints, true, true, true, true, true, true);
+
+        // 2. trackstatistics
+        assertTrackStatistics(false, true, true);
+
+        // 4. markers
+        assertMarkers();
+    }
+
+    //TODO Does not test images
+    @LargeTest
+    @Test
+    public void kmz_with_trackdetail_and_sensordata() throws TimeoutException, IOException {
+        setUp(true);
+
+        // given
+        Track track = contentProviderUtils.getTrack(trackId);
+
+        TrackExporter trackExporter = TrackFileFormat.KMZ_WITH_TRACKDETAIL_AND_SENSORDATA.createTrackExporter(context);
+
+        // when
+        // 1. export
+        trackExporter.writeTrack(track, context.getContentResolver().openOutputStream(tmpFileUri));
+        contentProviderUtils.deleteTrack(context, trackId);
+
+        // 2. import
+        KmzTrackImporter importer = new KmzTrackImporter(context, trackImporter);
+        importTrackId = importer.importFile(tmpFileUri).get(0);
 
         // then
         // 1. track
@@ -219,7 +276,7 @@ public class ExportImportTest {
 
     @LargeTest
     @Test(expected = ImportAlreadyExistsException.class)
-    public void kml_with_trackdetail_and_sensordata_duplicate_trackUUID() throws TimeoutException {
+    public void kml_with_trackdetail_and_sensordata_duplicate_trackUUID() throws TimeoutException, IOException {
         setUp(false);
 
         // given
@@ -231,14 +288,12 @@ public class ExportImportTest {
         TrackExporter trackExporter = TrackFileFormat.KML_WITH_TRACKDETAIL_AND_SENSORDATA.createTrackExporter(context);
 
         // when
-        // 1. export
-        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-        trackExporter.writeTrack(track, outputStream);
+        trackExporter.writeTrack(track, context.getContentResolver().openOutputStream(tmpFileUri));
 
         // 2. import
-        InputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray());
-        AbstractFileTrackImporter trackImporter = new KmlFileTrackImporter(context);
-        importTrackId = trackImporter.importFile(inputStream).get(0);
+        InputStream inputStream = context.getContentResolver().openInputStream(tmpFileUri);
+        XMLImporter importer = new XMLImporter(new KmlTrackImporter(context, trackImporter));
+        importTrackId = importer.importFile(inputStream).get(0);
 
         // then
         Track importedTrack = contentProviderUtils.getTrack(importTrackId);
@@ -247,7 +302,7 @@ public class ExportImportTest {
 
     @LargeTest
     @Test
-    public void gpx() throws TimeoutException {
+    public void gpx() throws TimeoutException, IOException {
         setUp(true);
 
         // given
@@ -257,14 +312,13 @@ public class ExportImportTest {
 
         // when
         // 1. export
-        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-        trackExporter.writeTrack(track, outputStream);
+        trackExporter.writeTrack(track, context.getContentResolver().openOutputStream(tmpFileUri));
         contentProviderUtils.deleteTrack(context, trackId);
 
         // 2. import
-        InputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray());
-        AbstractFileTrackImporter trackImporter = new GpxFileTrackImporter(context, contentProviderUtils);
-        importTrackId = trackImporter.importFile(inputStream).get(0);
+        InputStream inputStream = context.getContentResolver().openInputStream(tmpFileUri);
+        XMLImporter importer = new XMLImporter(new GpxTrackImporter(context, trackImporter));
+        importTrackId = importer.importFile(inputStream).get(0);
 
         // then
         // 1. track
@@ -295,7 +349,7 @@ public class ExportImportTest {
 
     @LargeTest
     @Test(expected = ImportAlreadyExistsException.class)
-    public void gpx_duplicate_trackUUID() throws TimeoutException {
+    public void gpx_duplicate_trackUUID() throws TimeoutException, IOException {
         setUp(false);
 
         // given
@@ -308,13 +362,12 @@ public class ExportImportTest {
 
         // when
         // 1. export
-        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-        trackExporter.writeTrack(track, outputStream);
+        trackExporter.writeTrack(track, context.getContentResolver().openOutputStream(tmpFileUri));
 
         // 2. import
-        InputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray());
-        AbstractFileTrackImporter trackImporter = new GpxFileTrackImporter(context, contentProviderUtils);
-        importTrackId = trackImporter.importFile(inputStream).get(0);
+        InputStream inputStream = context.getContentResolver().openInputStream(tmpFileUri);
+        XMLImporter importer = new XMLImporter(new GpxTrackImporter(context, trackImporter));
+        importTrackId = importer.importFile(inputStream).get(0);
 
         // then
         // 1. track
@@ -357,18 +410,18 @@ public class ExportImportTest {
             // TODO Not exported for GPX/KML
             //   assertEquals(trackPoint.getAccuracy(), importedTrackPoint.getAccuracy(), 0.01);
 
-            assertEquals(trackPoint.hasLocation(), importedTrackPoint.hasLocation());
+            assertEquals("" + i, trackPoint.hasLocation(), importedTrackPoint.hasLocation());
             if (trackPoint.hasLocation()) {
-                assertEquals(trackPoint.getLatitude(), importedTrackPoint.getLatitude(), 0.001);
-                assertEquals(trackPoint.getLongitude(), importedTrackPoint.getLongitude(), 0.001);
+                assertEquals("" + i, trackPoint.getLatitude(), importedTrackPoint.getLatitude(), 0.001);
+                assertEquals("" + i, trackPoint.getLongitude(), importedTrackPoint.getLongitude(), 0.001);
             }
-            assertEquals(trackPoint.hasSpeed(), importedTrackPoint.hasSpeed());
+            assertEquals("" + i, trackPoint.hasSpeed(), importedTrackPoint.hasSpeed());
             if (trackPoint.hasSpeed()) {
-                assertEquals(trackPoint.getSpeed().toMPS(), importedTrackPoint.getSpeed().toMPS(), 0.001);
+                assertEquals("" + i, trackPoint.getSpeed().toMPS(), importedTrackPoint.getSpeed().toMPS(), 0.001);
             }
-            assertEquals(trackPoint.hasAltitude(), importedTrackPoint.hasAltitude());
+            assertEquals("" + i, trackPoint.hasAltitude(), importedTrackPoint.hasAltitude());
             if (trackPoint.hasAltitude()) {
-                assertEquals(trackPoint.getAltitude(), importedTrackPoint.getAltitude(), 0.001);
+                assertEquals("" + i, trackPoint.getAltitude().toM(), importedTrackPoint.getAltitude().toM(), 0.001);
             }
 
             if (type.equals(TrackPoint.Type.SEGMENT_START_MANUAL) || type.equals(TrackPoint.Type.SEGMENT_END_MANUAL)) {
@@ -377,13 +430,13 @@ public class ExportImportTest {
             }
 
             if (verifyHeartrate) {
-                assertEquals("" + trackPoint, trackPoint.getHeartRate_bpm(), importedTrackPoint.getHeartRate_bpm(), 0.01);
+                assertEquals("" + i, trackPoint.getHeartRate_bpm(), importedTrackPoint.getHeartRate_bpm(), 0.01);
             }
             if (verifyCadence) {
-                assertEquals("" + trackPoint, trackPoint.getCyclingCadence_rpm(), importedTrackPoint.getCyclingCadence_rpm(), 0.01);
+                assertEquals("" + i, trackPoint.getCyclingCadence_rpm(), importedTrackPoint.getCyclingCadence_rpm(), 0.01);
             }
             if (verifyPower) {
-                assertEquals("" + trackPoint, trackPoint.getPower(), importedTrackPoint.getPower(), 0.01);
+                assertEquals("" + i, trackPoint.getPower(), importedTrackPoint.getPower(), 0.01);
             }
             if (verifyAltitudeGain) {
                 assertEquals(trackPoint.getAltitudeGain(), importedTrackPoint.getAltitudeGain(), 0.01);
@@ -438,7 +491,7 @@ public class ExportImportTest {
     }
 
     private static TrackPoint createTrackPoint(long time, double latitude, double longitude, float accuracy, float speed, float altitude, float altitudeGain, float heartRate, float cyclingCadence, float power, Distance distance) {
-        TrackPoint tp = new TrackPoint(latitude, longitude, (double) altitude, Instant.ofEpochMilli(time));
+        TrackPoint tp = new TrackPoint(latitude, longitude, Altitude.WGS84.of(altitude), Instant.ofEpochMilli(time));
         tp.setAccuracy(accuracy);
         tp.setSpeed(Speed.of(speed));
         tp.setHeartRate_bpm(heartRate);

src/androidTest/java/de/dennisguse/opentracks/io/file/importer/GPXImportTest.java

@@ -7,13 +7,16 @@ import androidx.test.filters.LargeTest;
 import androidx.test.platform.app.InstrumentationRegistry;
 
 import org.junit.After;
+import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
 
+import java.io.IOException;
 import java.io.InputStream;
 import java.util.List;
 
+import de.dennisguse.opentracks.content.data.Distance;
 import de.dennisguse.opentracks.content.data.TestDataUtil;
 import de.dennisguse.opentracks.content.data.Track;
 import de.dennisguse.opentracks.content.data.TrackPoint;
@@ -28,13 +31,20 @@ import static org.junit.Assert.assertNotNull;
  * Test that legacy KML/GPX formats can still be imported.
  */
 @RunWith(JUnit4.class)
-public class LegacyImportTest {
+public class GPXImportTest {
 
     private final Context context = ApplicationProvider.getApplicationContext();
     private final ContentProviderUtils contentProviderUtils = new ContentProviderUtils(context);
 
+    private TrackImporter trackImporter;
+
     private Track.Id importTrackId;
 
+    @Before
+    public void setUp() {
+        trackImporter = new TrackImporter(context, contentProviderUtils, Distance.of(10), Distance.of(200), true);
+    }
+
     @After
     public void tearDown() {
         if (importTrackId != null) {
@@ -42,76 +52,19 @@ public class LegacyImportTest {
         }
     }
 
-    /**
-     * Check that data with statistics markers is imported and those ignored.
-     * Statistics marker were created to avoid recomputing the track statistics (e.g., distance until a certain time).
-     */
-    @LargeTest
-    @Test
-    public void kml_with_statistics_marker() {
-        // given
-        KmlFileTrackImporter trackImporter = new KmlFileTrackImporter(context);
-        InputStream inputStream = InstrumentationRegistry.getInstrumentation().getContext().getResources().openRawResource(de.dennisguse.opentracks.debug.test.R.raw.legacy_kml_statistics_marker);
-
-        // when
-        // 1. import
-        importTrackId = trackImporter.importFile(inputStream).get(0);
-
-        // then
-        // 1. track
-        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
-        assertNotNull(importedTrack);
-        assertEquals("unknown", importedTrack.getCategory());
-        assertEquals("Test Track", importedTrack.getDescription());
-        assertEquals("2020-11-28 18:06", importedTrack.getName());
-        assertEquals("UNKNOWN", importedTrack.getIcon());
-
-        // 2. markers
-        assertEquals(0, contentProviderUtils.getMarkerCount(importTrackId));
-
-        // 3. trackpoints
-        List<TrackPoint> importedTrackPoints = TestDataUtil.getTrackPoints(contentProviderUtils, importTrackId);
-        assertEquals(6, importedTrackPoints.size());
-
-        // first 3 trackpoints
-        assertTrackpoint(importedTrackPoints.get(0), TrackPoint.Type.SEGMENT_START_AUTOMATIC, "2020-11-28T17:06:22.401Z", 1.234156, 12.340097, 469.286376953125);
-        assertTrackpoint(importedTrackPoints.get(1), TrackPoint.Type.TRACKPOINT, "2020-11-28T17:06:25.448Z", 1.23415, 12.340036, 439.1626281738281);
-        assertTrackpoint(importedTrackPoints.get(2), TrackPoint.Type.TRACKPOINT, "2020-11-28T17:06:47.888Z", 1.23405, 12.340057, 421.8070983886719);
-
-        // created resume trackpoint with time of next valid trackpoint
-        assertTrackpoint(importedTrackPoints.get(3), TrackPoint.Type.SEGMENT_START_AUTOMATIC, "2020-11-28T17:06:55.861Z", 1.23405, 12.340057, 419.93902587890625);
-        assertTrackpoint(importedTrackPoints.get(4), TrackPoint.Type.TRACKPOINT, "2020-11-28T17:06:56.905Z", 1.23405, 12.340057, 419.9036560058594);
-        assertTrackpoint(importedTrackPoints.get(5), TrackPoint.Type.TRACKPOINT, "2020-11-28T17:07:20.870Z", 1.234046, 12.340082, 417.99432373046875);
-    }
-
-    /**
-     * At least one valid location is required.
-     * Before v3.15.0, Tracks without TrackPoints could be created; such tracks cannot be imported as we cannot restore the TrackStatistics (especially startTime and stopTime).
-     */
-    @LargeTest
-    @Test(expected = ImportParserException.class)
-    public void kml_without_locations() {
-        // given
-        KmlFileTrackImporter trackImporter = new KmlFileTrackImporter(context);
-        InputStream inputStream = InstrumentationRegistry.getInstrumentation().getContext().getResources().openRawResource(de.dennisguse.opentracks.debug.test.R.raw.legacy_kml_empty);
-
-        // when
-        importTrackId = trackImporter.importFile(inputStream).get(0);
-    }
-
     /**
      * Check that data that contains pause (lat=100, lng=0) and resume (lat=200, lng=0) locations are restored to a segment break.
      */
     @LargeTest
     @Test
-    public void gpx_with_pause_resume() {
+    public void gpx_with_pause_resume() throws IOException {
         // given
-        GpxFileTrackImporter trackImporter = new GpxFileTrackImporter(context);
+        XMLImporter importer = new XMLImporter(new GpxTrackImporter(context, trackImporter));
         InputStream inputStream = InstrumentationRegistry.getInstrumentation().getContext().getResources().openRawResource(de.dennisguse.opentracks.debug.test.R.raw.legacy_gpx_pause_resume);
 
         // when
         // 1. import
-        importTrackId = trackImporter.importFile(inputStream).get(0);
+        importTrackId = importer.importFile(inputStream).get(0);
 
         // then
         // 1. track
@@ -137,7 +90,7 @@ public class LegacyImportTest {
         assertTrackpoint(importedTrackPoints.get(5), TrackPoint.Type.TRACKPOINT, "2021-01-07T21:52:04.103Z", 14.003, 3.0, 10.0);
     }
 
-    private void assertTrackpoint(final TrackPoint trackPoint, final TrackPoint.Type type, final String when, final Double longitude, final Double latitude, final Double altitude) {
+    static void assertTrackpoint(final TrackPoint trackPoint, final TrackPoint.Type type, final String when, final Double longitude, final Double latitude, final Double altitude) {
         assertEquals(StringUtils.parseTime(when), trackPoint.getTime());
         assertEquals(type, trackPoint.getType());
 
@@ -151,8 +104,7 @@ public class LegacyImportTest {
         if (altitude == null) {
             assertFalse(trackPoint.hasAltitude());
         } else {
-            assertEquals(altitude, (Double) trackPoint.getAltitude());
+            assertEquals(altitude, (Double) trackPoint.getAltitude().toM());
         }
-
     }
 }

src/androidTest/java/de/dennisguse/opentracks/io/file/importer/KMLImportTest.java

@@ -0,0 +1,191 @@
+package de.dennisguse.opentracks.io.file.importer;
+
+import android.content.Context;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.filters.LargeTest;
+import androidx.test.platform.app.InstrumentationRegistry;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+
+import de.dennisguse.opentracks.content.data.Distance;
+import de.dennisguse.opentracks.content.data.TestDataUtil;
+import de.dennisguse.opentracks.content.data.Track;
+import de.dennisguse.opentracks.content.data.TrackPoint;
+import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+/**
+ * Test that legacy KML/GPX formats can still be imported.
+ */
+@RunWith(JUnit4.class)
+public class KMLImportTest {
+
+    private final Context context = ApplicationProvider.getApplicationContext();
+    private final ContentProviderUtils contentProviderUtils = new ContentProviderUtils(context);
+
+    private TrackImporter trackImporter;
+
+    private Track.Id importTrackId;
+
+    @Before
+    public void setUp() {
+        trackImporter = new TrackImporter(context, contentProviderUtils, Distance.of(10), Distance.of(200), true);
+    }
+
+    @After
+    public void tearDown() {
+        if (importTrackId != null) {
+            contentProviderUtils.deleteTrack(context, importTrackId);
+        }
+    }
+
+    /**
+     * KML does not specify the order of gx:coords and when; only count has to be the same.
+     */
+    @LargeTest
+    @Test
+    public void kml22_order_location_and_when() throws IOException {
+        // given
+        XMLImporter importer = new XMLImporter(new KmlTrackImporter(context, trackImporter));
+        InputStream inputStream = InstrumentationRegistry.getInstrumentation().getContext().getResources().openRawResource(de.dennisguse.opentracks.debug.test.R.raw.kml22_order_location_and_when);
+
+        // when
+        // 1. import
+        importTrackId = importer.importFile(inputStream).get(0);
+
+        // then
+        // 1. track
+        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
+        assertNotNull(importedTrack);
+        assertEquals("", importedTrack.getCategory());
+        assertEquals("", importedTrack.getDescription());
+        assertEquals("", importedTrack.getName());
+        assertEquals("", importedTrack.getIcon());
+
+        // 2. markers
+        assertEquals(0, contentProviderUtils.getMarkerCount(importTrackId));
+
+        // 3. trackpoints
+        List<TrackPoint> importedTrackPoints = TestDataUtil.getTrackPoints(contentProviderUtils, importTrackId);
+        assertEquals(5, importedTrackPoints.size());
+
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(0), TrackPoint.Type.SEGMENT_START_MANUAL, "2021-05-29T18:06:21.767Z", null, null, null);
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(1), TrackPoint.Type.TRACKPOINT, "2021-05-29T18:06:22.042Z", 14.0, 3.0, 10.0);
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(2), TrackPoint.Type.TRACKPOINT, "2021-05-29T18:06:22.192Z", 14.001, 3.0, 10.0);
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(3), TrackPoint.Type.TRACKPOINT, "2021-05-29T18:06:22.318Z", 14.002, 3.0, 10.0);
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(4), TrackPoint.Type.SEGMENT_END_MANUAL, "2021-05-29T18:06:22.512Z", null, null, null);
+    }
+
+    /**
+     * Coordinates / when might not be ordered by increasing time.
+     */
+    @LargeTest
+    @Test
+    public void kml22_time_decreases() throws IOException {
+        // given
+        XMLImporter importer = new XMLImporter(new KmlTrackImporter(context, trackImporter));
+        InputStream inputStream = InstrumentationRegistry.getInstrumentation().getContext().getResources().openRawResource(de.dennisguse.opentracks.debug.test.R.raw.kml22_time_decreases);
+
+        // when
+        // 1. import
+        importTrackId = importer.importFile(inputStream).get(0);
+
+        // then
+        // 1. track
+        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
+        assertNotNull(importedTrack);
+        assertEquals("", importedTrack.getCategory());
+        assertEquals("", importedTrack.getDescription());
+        assertEquals("", importedTrack.getName());
+        assertEquals("", importedTrack.getIcon());
+
+        // 2. markers
+        assertEquals(0, contentProviderUtils.getMarkerCount(importTrackId));
+
+        // 3. trackpoints
+        List<TrackPoint> importedTrackPoints = TestDataUtil.getTrackPoints(contentProviderUtils, importTrackId);
+        assertEquals(2, importedTrackPoints.size());
+
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(0), TrackPoint.Type.TRACKPOINT, "2021-05-29T18:06:21.767Z", 14.0, 3.0, 10.0);
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(1), TrackPoint.Type.SEGMENT_START_MANUAL, "2021-05-29T18:06:22.042Z", null, null, null);
+    }
+
+    /**
+     * Check that data with statistics markers is imported and those ignored.
+     * Statistics marker were created to avoid recomputing the track statistics (e.g., distance until a certain time).
+     */
+    @LargeTest
+    @Test
+    public void kml22_with_statistics_marker() throws IOException {
+        // given
+        XMLImporter importer = new XMLImporter(new KmlTrackImporter(context, trackImporter));
+        InputStream inputStream = InstrumentationRegistry.getInstrumentation().getContext().getResources().openRawResource(de.dennisguse.opentracks.debug.test.R.raw.legacy_kml22_statistics_marker);
+
+        // when
+        // 1. import
+        importTrackId = importer.importFile(inputStream).get(0);
+
+        // then
+        // 1. track
+        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
+        assertNotNull(importedTrack);
+        assertEquals("unknown", importedTrack.getCategory());
+        assertEquals("Test Track", importedTrack.getDescription());
+        assertEquals("2020-11-28 18:06", importedTrack.getName());
+        assertEquals("UNKNOWN", importedTrack.getIcon());
+
+        // 2. markers
+        assertEquals(0, contentProviderUtils.getMarkerCount(importTrackId));
+
+        // 3. trackpoints
+        List<TrackPoint> importedTrackPoints = TestDataUtil.getTrackPoints(contentProviderUtils, importTrackId);
+        assertEquals(6, importedTrackPoints.size());
+
+        // first 3 trackpoints
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(0), TrackPoint.Type.SEGMENT_START_AUTOMATIC, "2020-11-28T17:06:22.401Z", 1.234156, 12.340097, 469.286376953125);
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(1), TrackPoint.Type.TRACKPOINT, "2020-11-28T17:06:25.448Z", 1.23415, 12.340036, 439.1626281738281);
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(2), TrackPoint.Type.TRACKPOINT, "2020-11-28T17:06:47.888Z", 1.23405, 12.340057, 421.8070983886719);
+
+        // created resume trackpoint with time of next valid trackpoint
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(3), TrackPoint.Type.SEGMENT_START_AUTOMATIC, "2020-11-28T17:06:55.861Z", 1.23405, 12.340057, 419.93902587890625);
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(4), TrackPoint.Type.TRACKPOINT, "2020-11-28T17:06:56.905Z", 1.23405, 12.340057, 419.9036560058594);
+        GPXImportTest.assertTrackpoint(importedTrackPoints.get(5), TrackPoint.Type.TRACKPOINT, "2020-11-28T17:07:20.870Z", 1.234046, 12.340082, 417.99432373046875);
+    }
+
+    /**
+     * At least one valid location is required.
+     * Before v3.15.0, Tracks without TrackPoints could be created; such tracks cannot be imported as we cannot restore the TrackStatistics (especially startTime and stopTime).
+     */
+    @LargeTest
+    @Test(expected = ImportParserException.class)
+    public void kml_without_locations() throws IOException {
+        // given
+        XMLImporter importer = new XMLImporter(new KmlTrackImporter(context, trackImporter));
+        InputStream inputStream = InstrumentationRegistry.getInstrumentation().getContext().getResources().openRawResource(de.dennisguse.opentracks.debug.test.R.raw.kml22_without_locations);
+
+        // when
+        importTrackId = importer.importFile(inputStream).get(0);
+    }
+
+    @LargeTest
+    @Test(expected = ImportParserException.class)
+    public void kml_when_locations_different() throws IOException {
+        // given
+        XMLImporter importer = new XMLImporter(new KmlTrackImporter(context, trackImporter));
+        InputStream inputStream = InstrumentationRegistry.getInstrumentation().getContext().getResources().openRawResource(de.dennisguse.opentracks.debug.test.R.raw.kml22_when_locations_different);
+
+        // when
+        importTrackId = importer.importFile(inputStream).get(0);
+    }
+}

src/androidTest/java/de/dennisguse/opentracks/services/TrackRecordingServiceTest.java

@@ -31,6 +31,7 @@ import androidx.test.rule.GrantPermissionRule;
 import androidx.test.rule.ServiceTestRule;
 
 import org.junit.After;
+import org.junit.AfterClass;
 import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Rule;
@@ -83,6 +84,10 @@ public class TrackRecordingServiceTest {
         if (Looper.myLooper() == null) Looper.prepare();
     }
 
+    @AfterClass
+    public static void finalTearDown() {
+        if (Looper.myLooper() != null) Looper.myLooper().quit();
+    }
 
     private final Context context = ApplicationProvider.getApplicationContext();
     private final SharedPreferences sharedPreferences = PreferencesUtils.getSharedPreferences(context);

src/androidTest/java/de/dennisguse/opentracks/services/TrackRecordingServiceTestLocation.java

@@ -13,6 +13,7 @@ import androidx.test.rule.GrantPermissionRule;
 import androidx.test.rule.ServiceTestRule;
 
 import org.junit.After;
+import org.junit.AfterClass;
 import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Rule;
@@ -44,6 +45,7 @@ import static org.junit.Assert.assertNotNull;
  * So, if it is executed on a real device, data might be lost.
  */
 @RunWith(AndroidJUnit4.class)
+//TODO Implement as mock test; no need to store data in database
 public class TrackRecordingServiceTestLocation {
 
     @Rule
@@ -63,6 +65,11 @@ public class TrackRecordingServiceTestLocation {
         if (Looper.myLooper() == null) Looper.prepare();
     }
 
+    @AfterClass
+    public static void finalTearDown() {
+        if (Looper.myLooper() != null) Looper.myLooper().quit();
+    }
+
     @Before
     public void setUp() throws TimeoutException {
         // Set up the mock content resolver

src/androidTest/java/de/dennisguse/opentracks/services/tasks/AnnouncementPeriodicTaskFactoryTest.java

@@ -1,59 +0,0 @@
-/*
- * Copyright 2010 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package de.dennisguse.opentracks.services.tasks;
-
-import android.content.Context;
-import android.os.Looper;
-
-import androidx.test.core.app.ApplicationProvider;
-import androidx.test.ext.junit.runners.AndroidJUnit4;
-
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import static org.junit.Assert.assertTrue;
-
-/**
- * Tests for {@link AnnouncementPeriodicTaskFactory}.
- *
- * @author Rodrigo Damazio
- */
-@RunWith(AndroidJUnit4.class)
-public class AnnouncementPeriodicTaskFactoryTest {
-
-    private final Context context = ApplicationProvider.getApplicationContext();
-
-    @BeforeClass
-    public static void preSetUp() {
-        // Prepare looper for Android's message queue
-        if (Looper.myLooper() == null) Looper.prepare();
-    }
-
-    @AfterClass
-    public static void finalTearDown() {
-        if (Looper.myLooper() != null) Looper.myLooper().quit();
-    }
-
-    @Test
-    public void testCreate() {
-        PeriodicTaskFactory factory = new AnnouncementPeriodicTaskFactory();
-        PeriodicTask task = factory.create(context);
-        assertTrue(task instanceof AnnouncementPeriodicTask);
-    }
-}

src/androidTest/java/de/dennisguse/opentracks/services/tasks/PeriodicTaskExecutorTest.java

@@ -0,0 +1,69 @@
+package de.dennisguse.opentracks.services.tasks;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.Looper;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.rule.GrantPermissionRule;
+import androidx.test.rule.ServiceTestRule;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+import de.dennisguse.opentracks.content.data.Distance;
+import de.dennisguse.opentracks.services.TrackRecordingService;
+import de.dennisguse.opentracks.stats.TrackStatistics;
+
+import static org.junit.Assert.assertEquals;
+
+@RunWith(AndroidJUnit4.class)
+public class PeriodicTaskExecutorTest {
+
+    @Rule
+    public final ServiceTestRule mServiceRule = ServiceTestRule.withTimeout(5, TimeUnit.SECONDS);
+
+    @Rule
+    public GrantPermissionRule mRuntimePermissionRule = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
+
+    @BeforeClass
+    public static void preSetUp() {
+        // Prepare looper for Android's message queue
+        if (Looper.myLooper() == null) Looper.prepare();
+    }
+
+    @AfterClass
+    public static void finalTearDown() {
+        if (Looper.myLooper() != null) Looper.myLooper().quit();
+    }
+
+
+    private final Context context = ApplicationProvider.getApplicationContext();
+
+    @Test
+    public void calculateNextTaskDistance() throws TimeoutException {
+        // given
+        TrackRecordingService service = ((TrackRecordingService.Binder) mServiceRule.bindService(new Intent(context, TrackRecordingService.class)))
+                .getService();
+
+        PeriodicTaskExecutor periodicTaskExecutor = new PeriodicTaskExecutor(service, new AnnouncementPeriodicTask.Factory());
+        periodicTaskExecutor.setMetricUnits(true);
+        periodicTaskExecutor.setTaskFrequency(-5);
+
+        // when
+        TrackStatistics statistics = new TrackStatistics();
+        statistics.setTotalDistance(Distance.of(13000));
+        assertEquals(Distance.of(15000), periodicTaskExecutor.calculateNextTaskDistance(statistics));
+
+        statistics.setTotalDistance(Distance.of(15100));
+        assertEquals(Distance.of(20000), periodicTaskExecutor.calculateNextTaskDistance(statistics));
+    }
+
+}

src/androidTest/java/de/dennisguse/opentracks/stats/TrackStatisticsUpdaterTest.java

@@ -9,6 +9,7 @@ import org.junit.runner.RunWith;
 import java.time.Duration;
 import java.time.Instant;
 
+import de.dennisguse.opentracks.content.data.Altitude;
 import de.dennisguse.opentracks.content.data.Distance;
 import de.dennisguse.opentracks.content.data.Speed;
 import de.dennisguse.opentracks.content.data.TestDataUtil;
@@ -53,8 +54,8 @@ public class TrackStatisticsUpdaterTest {
         TrackStatisticsUpdater subject = new TrackStatisticsUpdater();
 
         TrackPoint tp1 = new TrackPoint(TrackPoint.Type.SEGMENT_START_MANUAL, Instant.ofEpochMilli(1000));
-        TrackPoint tp2 = new TrackPoint(0, 0, 5.0, Instant.ofEpochMilli(2000));
-        TrackPoint tp3 = new TrackPoint(0.00001, 0, 5.0, Instant.ofEpochMilli(3000));
+        TrackPoint tp2 = new TrackPoint(0, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(2000));
+        TrackPoint tp3 = new TrackPoint(0.00001, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(3000));
 
         // when
         subject.addTrackPoint(tp1, GPS_DISTANCE);
@@ -71,8 +72,8 @@ public class TrackStatisticsUpdaterTest {
         TrackStatisticsUpdater subject = new TrackStatisticsUpdater();
 
         TrackPoint tp1 = new TrackPoint(TrackPoint.Type.SEGMENT_START_MANUAL, Instant.ofEpochMilli(1000));
-        TrackPoint tp2 = new TrackPoint(0, 0, 5.0, Instant.ofEpochMilli(2000));
-        TrackPoint tp3 = new TrackPoint(0.00001, 0, 5.0, Instant.ofEpochMilli(3000));
+        TrackPoint tp2 = new TrackPoint(0, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(2000));
+        TrackPoint tp3 = new TrackPoint(0.00001, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(3000));
         tp3.setSpeed(Speed.of(5f));
 
         // when
@@ -90,11 +91,11 @@ public class TrackStatisticsUpdaterTest {
         TrackStatisticsUpdater subject = new TrackStatisticsUpdater();
 
         TrackPoint tp1 = new TrackPoint(TrackPoint.Type.SEGMENT_START_MANUAL, Instant.ofEpochMilli(1000));
-        TrackPoint tp2 = new TrackPoint(0, 0, 5.0, Instant.ofEpochMilli(2000));
+        TrackPoint tp2 = new TrackPoint(0, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(2000));
         tp2.setSpeed(Speed.of(5f));
-        TrackPoint tp3 = new TrackPoint(0.001, 0, 5.0, Instant.ofEpochMilli(3000));
+        TrackPoint tp3 = new TrackPoint(0.001, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(3000));
         tp2.setSpeed(Speed.of(5f));
-        TrackPoint tp4 = new TrackPoint(0.001, 0, 5.0, Instant.ofEpochMilli(4000));
+        TrackPoint tp4 = new TrackPoint(0.001, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(4000));
         tp2.setSpeed(Speed.of(5f));
         tp4.setSensorDistance(Distance.of(5f));
         TrackPoint tp5 = new TrackPoint(TrackPoint.Type.SEGMENT_END_MANUAL, Instant.ofEpochMilli(5000));
@@ -122,9 +123,9 @@ public class TrackStatisticsUpdaterTest {
         TrackStatisticsUpdater subject = new TrackStatisticsUpdater();
 
         TrackPoint tp1 = new TrackPoint(TrackPoint.Type.SEGMENT_START_MANUAL, Instant.ofEpochMilli(1000));
-        TrackPoint tp2 = new TrackPoint(0, 0, 5.0, Instant.ofEpochMilli(2000));
-        TrackPoint tp3 = new TrackPoint(0.00001, 0, 5.0, Instant.ofEpochMilli(3000));
-        TrackPoint tp4 = new TrackPoint(0.00001, 0, 5.0, Instant.ofEpochMilli(4000));
+        TrackPoint tp2 = new TrackPoint(0, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(2000));
+        TrackPoint tp3 = new TrackPoint(0.00001, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(3000));
+        TrackPoint tp4 = new TrackPoint(0.00001, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(4000));
         tp4.setSensorDistance(Distance.of(5f));
         TrackPoint tp5 = new TrackPoint(TrackPoint.Type.SEGMENT_END_MANUAL, Instant.ofEpochMilli(5000));
         tp5.setSensorDistance(Distance.of(10f));
@@ -145,6 +146,34 @@ public class TrackStatisticsUpdaterTest {
         assertEquals(15, subject.getTrackStatistics().getTotalDistance().toM(), 0.01);
     }
 
+    @Test
+    public void addTrackPoint_distance_from_GPS_moving_and_sensor_disconnecting() {
+        // given
+        TrackStatisticsUpdater subject = new TrackStatisticsUpdater();
+
+        TrackPoint tp1 = new TrackPoint(TrackPoint.Type.SEGMENT_START_MANUAL, Instant.ofEpochMilli(1000));
+        TrackPoint tp2 = new TrackPoint(0, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(2000));
+        TrackPoint tp3 = new TrackPoint(0.00001, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(3000));
+        tp3.setSensorDistance(Distance.of(5f));
+        TrackPoint tp4 = new TrackPoint(0.0005, 0, Altitude.WGS84.of(5.0), Instant.ofEpochMilli(4000));
+        TrackPoint tp5 = new TrackPoint(TrackPoint.Type.SEGMENT_END_MANUAL, Instant.ofEpochMilli(5000));
+
+        // when
+        subject.addTrackPoint(tp1, GPS_DISTANCE);
+        subject.addTrackPoint(tp2, GPS_DISTANCE);
+        subject.addTrackPoint(tp3, GPS_DISTANCE);
+
+        // then
+        assertEquals(5, subject.getTrackStatistics().getTotalDistance().toM(), 0.01);
+
+        // when
+        subject.addTrackPoint(tp4, GPS_DISTANCE);
+        subject.addTrackPoint(tp5, GPS_DISTANCE);
+
+        // then
+        assertEquals(59.18, subject.getTrackStatistics().getTotalDistance().toM(), 0.01);
+    }
+
     @Ignore("TODO: create a concept ont to compute speed from GPS and sensor")
     @Test
     public void addTrackPoint_speed_from_GPS_not_moving() {

src/androidTest/java/de/dennisguse/opentracks/util/EGM2008UtilsTest.java

@@ -0,0 +1,229 @@
+package de.dennisguse.opentracks.util;
+
+import android.content.Context;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+import java.io.DataInputStream;
+import java.io.EOFException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+import java.time.Instant;
+
+import de.dennisguse.opentracks.content.data.TrackPoint;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+
+@RunWith(JUnit4.class)
+public class EGM2008UtilsTest {
+
+    private static final double MAX_BILINEAR_ERROR = 0.478;
+
+    private final Context context = ApplicationProvider.getApplicationContext();
+
+    @Test
+    public void fileVerification() throws IOException {
+        // given
+        int expectedLength = 18671444;
+        int expectedHeaderLength = 404;
+
+        String expectedHeader = "P5\n" +
+                "# Geoid file in PGM format for the GeographicLib::Geoid class\n" +
+                "# Description WGS84 EGM2008, 5-minute grid\n" +
+                "# URL http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm2008\n" +
+                "# DateTime 2009-08-29 18:45:00\n" +
+                "# MaxBilinearError 0.478\n" +
+                "# RMSBilinearError 0.012\n" +
+                "# MaxCubicError 0.294\n" +
+                "# RMSCubicError 0.005\n" +
+                "# Offset -108\n" +
+                "# Scale 0.003\n" +
+                "# Origin 90N 0E\n" +
+                "# AREA_OR_POINT Point\n" +
+                "# Vertical_Datum WGS84\n" +
+                "4320    2161\n" +
+                "65535" +
+                "\n";
+
+        // when
+        try (InputStream inputStream = context.getResources().openRawResource(EGM2008Utils.EGM2008_5_DATA)) {
+            assertEquals(expectedLength, inputStream.available());
+
+            InputStreamReader reader = new InputStreamReader(inputStream, StandardCharsets.US_ASCII);
+            char[] data = new char[expectedHeaderLength];
+            int length = reader.read(data);
+
+            // then
+            assertEquals(expectedHeaderLength, length);
+            assertEquals(expectedHeader, new String(data));
+        }
+    }
+
+    @Test
+    public void data_Northpole() throws IOException {
+        // given
+        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.TRACKPOINT, Instant.ofEpochMilli(0));
+        trackPoint.setLatitude(90);
+        trackPoint.setLongitude(0.1);
+        trackPoint.setAltitude(0);
+
+        // when
+        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());
+
+        // then
+        assertEquals(-14.8980, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+    }
+
+    @Test
+    public void data_Southpole() throws IOException {
+        // given
+        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.TRACKPOINT, Instant.ofEpochMilli(0));
+        trackPoint.setLatitude(-90);
+        trackPoint.setLongitude(0);
+        trackPoint.setAltitude(0);
+
+        // when
+        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());
+
+        // then
+        assertEquals(30.15, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+    }
+
+    @Test
+    public void data_Southpole2() throws IOException {
+        // given
+        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.TRACKPOINT, Instant.ofEpochMilli(0));
+        trackPoint.setLatitude(-90);
+        trackPoint.setLongitude(180);
+        trackPoint.setAltitude(0);
+
+        // when
+        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());
+
+        // then
+        assertEquals(30.15, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+    }
+
+    @Test
+    public void data_Southpole3() throws IOException {
+        // given
+        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.TRACKPOINT, Instant.ofEpochMilli(0));
+        trackPoint.setLatitude(-90);
+        trackPoint.setLongitude(-180);
+        trackPoint.setAltitude(0);
+
+        // when
+        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());
+
+        // then
+        assertEquals(30.15, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+    }
+
+    @Test
+    public void data_0() throws IOException {
+        // given
+        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.TRACKPOINT, Instant.ofEpochMilli(0));
+        trackPoint.setLatitude(0);
+        trackPoint.setLongitude(0);
+        trackPoint.setAltitude(0);
+
+        // when
+        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());
+
+        // then
+        assertEquals(-17.2260, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+    }
+
+    @Test
+    public void data_Berlin() throws IOException {
+        // given
+        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.TRACKPOINT, Instant.ofEpochMilli(0));
+        trackPoint.setLatitude(52.530644);
+        trackPoint.setLongitude(13.383068);
+        trackPoint.setAltitude(0);
+
+        // when
+        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());
+
+        // then
+        assertEquals(-39.4865, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+    }
+
+    @Test
+    public void data_Berlin_Caching() throws IOException {
+        // given
+        TrackPoint trackPoint1 = new TrackPoint(TrackPoint.Type.TRACKPOINT, Instant.ofEpochMilli(0));
+        trackPoint1.setLatitude(52.530644);
+        trackPoint1.setLongitude(13.383068);
+        trackPoint1.setAltitude(0);
+
+        TrackPoint trackPoint2 = new TrackPoint(TrackPoint.Type.TRACKPOINT, Instant.ofEpochMilli(0));
+        trackPoint2.setLatitude(52.530000);
+        trackPoint2.setLongitude(13.380000);
+        trackPoint2.setAltitude(0);
+
+        // when
+        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint1.getLocation());
+
+        // then
+        assertNotEquals(altitude_egm2008.correctAltitude(trackPoint1.getLocation()), altitude_egm2008.correctAltitude(trackPoint2.getLocation()), 0.0001);
+    }
+
+    @Test
+    public void data_MaxUndulation() throws IOException {
+        // given
+        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.TRACKPOINT, Instant.ofEpochMilli(0));
+        trackPoint.setLatitude(-8.417);
+        trackPoint.setLongitude(147.367);
+        trackPoint.setAltitude(0);
+
+        // when
+        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());
+
+        // then
+        assertEquals(-85.824, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+    }
+
+    @Test
+    public void getIndices() {
+        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.TRACKPOINT, Instant.ofEpochMilli(0));
+        trackPoint.setLatitude(90);
+        trackPoint.setLongitude(0);
+        assertEquals(new EGM2008Utils.Indices(0, 0), EGM2008Utils.getIndices(trackPoint.getLocation()));
+
+        trackPoint.setLatitude(0);
+        trackPoint.setLongitude(0);
+        assertEquals(new EGM2008Utils.Indices(1080, 0), EGM2008Utils.getIndices(trackPoint.getLocation()));
+
+        trackPoint.setLatitude(-90);
+        trackPoint.setLongitude(180);
+        assertEquals(new EGM2008Utils.Indices(2160, 4320 / 2), EGM2008Utils.getIndices(trackPoint.getLocation()));
+
+        trackPoint.setLatitude(-90);
+        trackPoint.setLongitude(-180);
+        assertEquals(new EGM2008Utils.Indices(2160, 0), EGM2008Utils.getIndices(trackPoint.getLocation()));
+    }
+
+    @Test
+    public void getUndulationRaw_ok() throws IOException {
+        try (DataInputStream dataInputStream = new DataInputStream(context.getResources().openRawResource(EGM2008Utils.EGM2008_5_DATA))) {
+            assertEquals(40966, EGM2008Utils.getUndulationRaw(dataInputStream, new EGM2008Utils.Indices(0, 0)));
+            assertEquals(41742, EGM2008Utils.getUndulationRaw(dataInputStream, new EGM2008Utils.Indices(1081, 0)));
+            assertEquals(25950, EGM2008Utils.getUndulationRaw(dataInputStream, new EGM2008Utils.Indices(2160, 4319)));
+        }
+    }
+
+    @Test(expected = EOFException.class)
+    public void getUndulationRaw_error() throws IOException {
+        try (DataInputStream dataInputStream = new DataInputStream(context.getResources().openRawResource(EGM2008Utils.EGM2008_5_DATA))) {
+            assertEquals(0, EGM2008Utils.getUndulationRaw(dataInputStream, new EGM2008Utils.Indices(2161, 4320)), 0.01);
+        }
+    }
+}

src/androidTest/res/raw/kml22_order_location_and_when.kml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<kml xmlns:atom="http://www.w3.org/2005/Atom"
+    xmlns:gx="http://www.google.com/kml/ext/2.2"
+    xmlns="http://www.opengis.net/kml/2.2">
+    <Document>
+        <Placemark>
+            <gx:MultiTrack>
+                <altitudeMode>absolute</altitudeMode>
+                <gx:interpolate>1</gx:interpolate>
+                <gx:Track>
+                    <when>2021-05-29T18:06:21.767Z</when>
+                    <gx:coord />
+
+                    <gx:coord>14.0 3.0 10.0</gx:coord>
+                    <when>2021-05-29T18:06:22.042Z</when>
+
+                    <when>2021-05-29T18:06:22.192Z</when>
+                    <when>2021-05-29T18:06:22.318Z</when>
+                    <when>2021-05-29T18:06:22.512Z</when>
+
+                    <gx:coord>14.001 3.0 10.0</gx:coord>
+                    <gx:coord>14.002 3.0 10.0</gx:coord>
+                    <gx:coord />
+                </gx:Track>
+            </gx:MultiTrack>
+        </Placemark>
+    </Document>
+</kml>

src/androidTest/res/raw/kml22_time_decreases.kml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<kml xmlns:atom="http://www.w3.org/2005/Atom"
+    xmlns:gx="http://www.google.com/kml/ext/2.2"
+    xmlns="http://www.opengis.net/kml/2.2">
+    <Document>
+        <Placemark>
+            <gx:MultiTrack>
+                <altitudeMode>absolute</altitudeMode>
+                <gx:interpolate>1</gx:interpolate>
+                <gx:Track>
+                    <when>2021-05-29T18:06:22.042Z</when>
+                    <gx:coord />
+
+                    <when>2021-05-29T18:06:21.767Z</when>
+                    <gx:coord>14.0 3.0 10.0</gx:coord>
+                </gx:Track>
+            </gx:MultiTrack>
+        </Placemark>
+    </Document>
+</kml>

src/androidTest/res/raw/kml22_when_locations_different.kml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<kml xmlns:atom="http://www.w3.org/2005/Atom"
+    xmlns:gx="http://www.google.com/kml/ext/2.2"
+    xmlns="http://www.opengis.net/kml/2.2">
+    <Document>
+        <Placemark>
+            <gx:MultiTrack>
+                <altitudeMode>absolute</altitudeMode>
+                <gx:interpolate>1</gx:interpolate>
+                <gx:Track>
+                    <when>2021-05-29T18:06:21.767Z</when>
+                    <gx:coord />
+
+                    <gx:coord>14.0 3.0 10.0</gx:coord>
+                </gx:Track>
+            </gx:MultiTrack>
+        </Placemark>
+    </Document>
+</kml>

src/androidTest/res/raw/kml22_without_locations.kml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<kml xmlns:atom="http://www.w3.org/2005/Atom"
+    xmlns:gx="http://www.google.com/kml/ext/2.2"
+    xmlns="http://www.opengis.net/kml/2.2">
+    <Document>
+        <Placemark>
+            <gx:MultiTrack>
+                <altitudeMode>absolute</altitudeMode>
+                <gx:interpolate>1</gx:interpolate>
+                <gx:Track />
+            </gx:MultiTrack>
+        </Placemark>
+    </Document>
+</kml>

src/androidTest/res/raw/legacy_kml_empty.kml

@@ -1,62 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<kml xmlns="http://www.opengis.net/kml/2.2"
-xmlns:gx="http://www.google.com/kml/ext/2.2"
-xmlns:atom="http://www.w3.org/2005/Atom"
-xmlns:opentracks="http://opentracksapp.com/xmlschemas/v1">
-<Document>
-<open>1</open>
-<visibility>1</visibility>
-<name><![CDATA[2020-08-24 20:57]]></name>
-<atom:generator><![CDATA[OpenTracks]]></atom:generator>
-<Style id="track">
-<LineStyle><color>7f0000ff</color><width>4</width></LineStyle>
-<IconStyle>
-<scale>1.3</scale>
-<Icon><href>http://earth.google.com/images/kml-icons/track-directional/track-0.png</href></Icon>
-</IconStyle>
-</Style>
-<Style id="start"><IconStyle>
-<scale>1.3</scale>
-<Icon><href>http://maps.google.com/mapfiles/kml/paddle/grn-circle.png</href></Icon>
-<hotSpot x="32" y="1" xunits="pixels" yunits="pixels"/>
-</IconStyle></Style>
-<Style id="end"><IconStyle>
-<scale>1.3</scale>
-<Icon><href>http://maps.google.com/mapfiles/kml/paddle/red-circle.png</href></Icon>
-<hotSpot x="32" y="1" xunits="pixels" yunits="pixels"/>
-</IconStyle></Style>
-<Style id="waypoint"><IconStyle>
-<scale>1.3</scale>
-<Icon><href>http://maps.google.com/mapfiles/kml/pushpin/blue-pushpin.png</href></Icon>
-<hotSpot x="20" y="2" xunits="pixels" yunits="pixels"/>
-</IconStyle></Style>
-<Schema id="schema">
-<gx:SimpleArrayField name="speed" type="float">
-<displayName><![CDATA[Speed (m/s)]]></displayName>
-</gx:SimpleArrayField>
-<gx:SimpleArrayField name="power" type="float">
-<displayName><![CDATA[Power (W)]]></displayName>
-</gx:SimpleArrayField>
-<gx:SimpleArrayField name="cadence" type="float">
-<displayName><![CDATA[Cadence (rpm)]]></displayName>
-</gx:SimpleArrayField>
-<gx:SimpleArrayField name="heart_rate" type="float">
-<displayName><![CDATA[Heart rate (bpm)]]></displayName>
-</gx:SimpleArrayField>
-</Schema>
-<Placemark>
-<name><![CDATA[2020-08-24 20:57]]></name>
-<description><![CDATA[]]></description>
-<icon><![CDATA[UNKNOWN]]></icon>
-<opentracks:trackid>9316e527-a5b8-47c5-bdbd-954b4be7d80e</opentracks:trackid>
-<styleUrl>#track</styleUrl>
-<ExtendedData>
-<Data name="type"><value><![CDATA[unknown]]></value></Data>
-</ExtendedData>
-<gx:MultiTrack>
-<altitudeMode>absolute</altitudeMode>
-<gx:interpolate>1</gx:interpolate>
-</gx:MultiTrack>
-</Placemark>
-</Document>
-</kml>

src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:hasFragileUserData="true"
+        tools:replace="android:hasFragileUserData" />
+</manifest>

src/main/AndroidManifest.xml

@@ -51,18 +51,14 @@ limitations under the License.
         android:name=".Startup"
         android:allowBackup="false"
         android:hardwareAccelerated="true"
-        android:hasFragileUserData="true"
-        android:icon="@mipmap/ic_launcher"
+        android:hasFragileUserData="false"
+        android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/ThemeCustom">
 
         <activity android:name=".AboutActivity" />
 
-        <activity
-            android:name=".TrackDeleteActivity"
-            android:theme="@style/TrackDeleteActivity" />
-
         <activity
             android:name=".HelpActivity"
             android:label="@string/menu_help" />
@@ -350,6 +346,13 @@ limitations under the License.
             android:name=".io.file.importer.ImportService"
             android:exported="false"
             android:permission="android.permission.BIND_JOB_SERVICE" />
+
+        <service
+            android:name=".services.TrackDeleteService"
+            android:enabled="true"
+            android:exported="false"
+            android:icon="@drawable/ic_logo_color_24dp"
+            android:label="@string/delete_service" />
     </application>
 
     <queries>

src/main/java/de/dennisguse/opentracks/AbstractListActivity.java

@@ -1,96 +0,0 @@
-/*
- * Copyright 2012 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package de.dennisguse.opentracks;
-
-import android.content.Intent;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-
-import de.dennisguse.opentracks.content.data.Track;
-import de.dennisguse.opentracks.fragments.ConfirmDeleteDialogFragment;
-import de.dennisguse.opentracks.fragments.ConfirmDeleteDialogFragment.ConfirmDeleteCaller;
-import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
-import de.dennisguse.opentracks.util.IntentUtils;
-
-/**
- * An abstract class for the following common tasks across
- * {@link TrackListActivity} and {@link TrackRecordedActivity}:
- * <p>
- * - share track <br>
- * - delete tracks <br>
- *
- * @author Jimmy Shih
- */
-public abstract class AbstractListActivity extends AbstractActivity implements ConfirmDeleteCaller {
-
-    private static final String TAG = AbstractListActivity.class.getSimpleName();
-
-    protected static final int GPS_REQUEST_CODE = 6;
-    private static final int DELETE_REQUEST_CODE = 3;
-
-    protected Track.Id recordingTrackId;
-
-    @Override
-    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
-        if (requestCode == DELETE_REQUEST_CODE) {
-            onTrackDeleted();
-        } else {
-            super.onActivityResult(requestCode, resultCode, data);
-        }
-    }
-
-    /**
-     * Delete tracks.
-     *
-     * @param trackIds the track ids
-     */
-    protected void deleteTracks(Track.Id... trackIds) {
-        ConfirmDeleteDialogFragment.showDialog(getSupportFragmentManager(), trackIds);
-    }
-
-    @Override
-    public void onConfirmDeleteDone(Track.Id... trackIds) {
-        boolean stopRecording = false;
-
-        for (Track.Id trackId : trackIds) {
-            if (trackId.equals(recordingTrackId)) {
-                stopRecording = true;
-                break;
-            }
-        }
-
-        if (stopRecording) {
-            getTrackRecordingServiceConnection().stopRecording(this);
-        }
-        Intent intent = IntentUtils.newIntent(this, TrackDeleteActivity.class);
-        intent.putParcelableArrayListExtra(TrackDeleteActivity.EXTRA_TRACK_IDS, new ArrayList<>(Arrays.asList(trackIds)));
-        startActivityForResult(intent, DELETE_REQUEST_CODE);
-        overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
-    }
-
-    /**
-     * Gets the track recording service connection.
-     * For stopping the current recording if need to delete the current recording track.
-     */
-    abstract protected TrackRecordingServiceConnection getTrackRecordingServiceConnection();
-
-    /**
-     * Called after {@link TrackDeleteActivity} returns its result.
-     */
-    abstract protected void onTrackDeleted();
-}

src/main/java/de/dennisguse/opentracks/AbstractTrackDeleteActivity.java

@@ -0,0 +1,125 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package de.dennisguse.opentracks;
+
+import androidx.annotation.Nullable;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
+import de.dennisguse.opentracks.content.data.Track;
+import de.dennisguse.opentracks.fragments.ConfirmDeleteDialogFragment;
+import de.dennisguse.opentracks.fragments.ConfirmDeleteDialogFragment.ConfirmDeleteCaller;
+import de.dennisguse.opentracks.services.TrackDeleteService;
+import de.dennisguse.opentracks.services.TrackDeleteServiceConnection;
+import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
+
+/**
+ * An abstract class for the following common tasks across
+ * {@link TrackListActivity} and {@link TrackRecordedActivity}:
+ * <p>
+ * - delete tracks <br>
+ *
+ * @author Jimmy Shih
+ */
+//TODO Check if this class is still such a good idea; inheritance might limit maintainability
+public abstract class AbstractTrackDeleteActivity extends AbstractActivity implements ConfirmDeleteCaller, TrackDeleteServiceConnection.Listener {
+
+    private static final String TAG = AbstractTrackDeleteActivity.class.getSimpleName();
+
+    private TrackDeleteServiceConnection trackDeleteServiceConnection;
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+        trackDeleteServiceConnection = new TrackDeleteServiceConnection(this);
+        trackDeleteServiceConnection.bind(this);
+    }
+
+    @Override
+    protected void onStop() {
+        super.onStop();
+        if (trackDeleteServiceConnection != null) {
+            trackDeleteServiceConnection.unbind(this);
+            trackDeleteServiceConnection = null;
+        }
+    }
+
+    /**
+     * Delete tracks.
+     *
+     * @param trackIds the track ids
+     */
+    protected void deleteTracks(Track.Id... trackIds) {
+        ConfirmDeleteDialogFragment.showDialog(getSupportFragmentManager(), trackIds);
+    }
+
+    @Override
+    public void onConfirmDeleteDone(Track.Id... trackIds) {
+        boolean stopRecording = false;
+
+        onDeleteConfirmed();
+
+        for (Track.Id trackId : trackIds) {
+            if (trackId.equals(getRecordingTrackId())) {
+                stopRecording = true;
+                break;
+            }
+        }
+
+        if (stopRecording) {
+            getTrackRecordingServiceConnection().stopRecording(this);
+        }
+
+        trackDeleteServiceConnection = new TrackDeleteServiceConnection(this);
+        trackDeleteServiceConnection.startAndBind(this, new ArrayList<>(Arrays.asList(trackIds)));
+    }
+
+    /**
+     * Gets the track recording service connection.
+     * For stopping the current recording if need to delete the current recording track.
+     */
+    protected TrackRecordingServiceConnection getTrackRecordingServiceConnection() {
+        return null;
+    }
+
+    /**
+     * Called every time a track is deleted.
+     */
+    protected void onTrackDeleteStatus(TrackDeleteService.DeleteStatus deleteStatus) {
+        if (deleteStatus.isFinished() && trackDeleteServiceConnection != null) {
+            trackDeleteServiceConnection.unbind(this);
+            trackDeleteServiceConnection = null;
+        }
+    }
+
+    protected abstract void onDeleteConfirmed();
+
+    @Nullable
+    protected Track.Id getRecordingTrackId() {
+        return null;
+    }
+
+    @Override
+    public void connected() {
+        TrackDeleteService service = trackDeleteServiceConnection.getServiceIfBound();
+        if (service == null) {
+            return;
+        }
+        service.getDeletingStatusObservable().observe(AbstractTrackDeleteActivity.this, status -> onTrackDeleteStatus(status));
+    }
+}

src/main/java/de/dennisguse/opentracks/ControllerFragment.java

@@ -0,0 +1,259 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package de.dennisguse.opentracks;
+
+import android.annotation.SuppressLint;
+import android.graphics.drawable.TransitionDrawable;
+import android.os.Bundle;
+import android.os.Handler;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.accessibility.AccessibilityEvent;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
+import de.dennisguse.opentracks.databinding.ControllerFragmentBinding;
+import de.dennisguse.opentracks.services.TrackRecordingService;
+import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
+import de.dennisguse.opentracks.util.ActivityUtils;
+import de.dennisguse.opentracks.util.StringUtils;
+
+/**
+ * Track controller for record, pause, resume, and stop.
+ *
+ * @author Jimmy Shih
+ */
+//TODO Move buttons into separate components
+public class ControllerFragment extends Fragment implements View.OnTouchListener {
+
+    private static final String TAG = ControllerFragment.class.getSimpleName();
+
+    private Handler handlerUpdateTotalTime;
+
+    private Runnable buttonDelay;
+    private int buttonDelayDuration;
+
+    private ControllerFragmentBinding viewBinding;
+    private TransitionDrawable transition;
+
+    private TrackRecordingServiceConnection trackRecordingServiceConnection;
+    private TrackRecordingService.RecordingStatus recordingStatus;
+    private TrackRecordingService.RecordingData recordingData;
+
+    private final Runnable bindChangedCallback = new Runnable() {
+        @Override
+        public void run() {
+            TrackRecordingService service = trackRecordingServiceConnection.getServiceIfBound();
+            if (service == null) {
+                Log.w(TAG, "could not get TrackRecordingService");
+                return;
+            }
+
+            service.getRecordingStatusObservable()
+                    .observe(ControllerFragment.this, status -> onRecordingStatusChanged(status));
+
+            service.getRecordingDataObservable()
+                    .observe(ControllerFragment.this, recordingData -> onTotalTimeChanged(recordingData));
+        }
+    };
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        buttonDelayDuration = getResources().getInteger(R.integer.buttonDelayMillis);
+
+        trackRecordingServiceConnection = new TrackRecordingServiceConnection(bindChangedCallback);
+        handlerUpdateTotalTime = new Handler();
+        recordingStatus = TrackRecordingService.STATUS_DEFAULT;
+    }
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        viewBinding = ControllerFragmentBinding.inflate(inflater, container, false);
+
+        viewBinding.controllerRecord.setOnTouchListener(this);
+        viewBinding.controllerRecord.setOnClickListener((view) -> {
+            if (buttonDelay != null || recordingStatus.isRecordingAndNotPaused()) {
+                return;
+            }
+
+            getCallback().recordStart();
+        });
+
+        viewBinding.controllerStop.setOnTouchListener(this);
+        transition = (TransitionDrawable) viewBinding.controllerContainer.getBackground();
+
+        onRecordingStatusChanged(recordingStatus);
+
+        return viewBinding.getRoot();
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        trackRecordingServiceConnection.startConnection(getContext());
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+        trackRecordingServiceConnection.unbind(getContext());
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        viewBinding = null;
+        transition = null;
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        trackRecordingServiceConnection = null;
+        handlerUpdateTotalTime = null;
+        recordingStatus = null;
+    }
+
+    //TODO Move into a separate object
+    @SuppressLint("ClickableViewAccessibility") //We do accessibility manually.
+    @Override
+    public boolean onTouch(final View view, MotionEvent event) {
+        if (!isResumed()) {
+            Log.w(TAG, "The UI is already gone, no need to update anything; seen on Android 7.1.2");
+            return false;
+        }
+        if (event.getAction() == MotionEvent.ACTION_MOVE) {
+            return false;
+        }
+
+        if (buttonDelay != null && event.getAction() == MotionEvent.ACTION_UP) {
+            handlerUpdateTotalTime.removeCallbacks(buttonDelay);
+            buttonDelay = null;
+            view.setPressed(false);
+
+            transition.resetTransition();
+
+            showStatusSetDefaultText();
+
+            return false;
+        }
+
+        //Trigger button pressed animation
+        view.setPressed(true);
+
+        //To pause a recording
+        if (viewBinding.controllerRecord.equals(view)
+                && event.getAction() == MotionEvent.ACTION_DOWN
+                && recordingStatus.isRecordingAndNotPaused()) {
+
+            transition.startTransition(buttonDelayDuration);
+
+            ActivityUtils.vibrate(getContext(), 150);
+            viewBinding.controllerStatus.setText(R.string.hold_to_pause);
+
+            buttonDelay = () -> {
+                view.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_CLICKED);
+                view.performClick();
+                getCallback().recordPause();
+
+                transition.resetTransition();
+
+                ActivityUtils.vibrate(getContext(), 1000);
+            };
+            handlerUpdateTotalTime.postDelayed(buttonDelay, buttonDelayDuration);
+            return true;
+        }
+
+        //To stop a recording
+        if (viewBinding.controllerStop.equals(view)
+                && event.getAction() == MotionEvent.ACTION_DOWN
+                && recordingStatus.isRecording()) {
+
+
+            transition.startTransition(buttonDelayDuration);
+
+            ActivityUtils.vibrate(getContext(), 150);
+            viewBinding.controllerStatus.setText(R.string.hold_to_stop);
+
+            buttonDelay = () -> {
+                view.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_CLICKED);
+                getCallback().recordStop();
+                ActivityUtils.vibrate(getContext(), 1000);
+
+                transition.resetTransition();
+            };
+            handlerUpdateTotalTime.postDelayed(buttonDelay, buttonDelayDuration);
+            return true;
+        }
+
+        return false;
+    }
+
+    public void hide() {
+        viewBinding.controllerContainer.setVisibility(View.GONE);
+    }
+
+    public void show() {
+        viewBinding.controllerContainer.setVisibility(View.VISIBLE);
+    }
+
+    private void showStatusSetDefaultText() {
+        viewBinding.controllerStatus.setText(recordingStatus.isPaused() ? R.string.generic_paused : R.string.generic_recording);
+    }
+
+    private Callback getCallback() {
+        return (Callback) getActivity();
+    }
+
+    public interface Callback {
+        void recordStart();
+
+        void recordPause();
+
+        void recordStop();
+    }
+
+    private void onRecordingStatusChanged(TrackRecordingService.RecordingStatus status) {
+        recordingStatus = status;
+
+        viewBinding.controllerRecord.setImageResource(recordingStatus.isRecordingAndNotPaused() ? R.drawable.ic_button_pause : R.drawable.button_record);
+        viewBinding.controllerRecord.setContentDescription(getContext().getString(recordingStatus.isRecordingAndNotPaused() ? R.string.image_pause : R.string.image_record));
+
+        viewBinding.controllerStop.setEnabled(recordingStatus.isRecording());
+
+        viewBinding.controllerStatus.setVisibility(recordingStatus.isRecording() ? View.VISIBLE : View.INVISIBLE);
+        if (recordingStatus.isRecording()) {
+            viewBinding.controllerStatus.setTextColor(getContext().getResources().getColor(recordingStatus.isPaused() ? android.R.color.white : R.color.recording_text));
+            showStatusSetDefaultText();
+        }
+
+        viewBinding.controllerTotalTime.setVisibility(recordingStatus.isRecording() ? View.VISIBLE : View.INVISIBLE);
+    }
+
+    private void onTotalTimeChanged(TrackRecordingService.RecordingData recordingData) {
+        this.recordingData = recordingData;
+
+        viewBinding.controllerTotalTime.setText(StringUtils.formatElapsedTimeWithHour(this.recordingData.getTrackStatistics().getTotalTime()));
+    }
+}

src/main/java/de/dennisguse/opentracks/MarkerListActivity.java

@@ -20,6 +20,7 @@ import android.app.SearchManager;
 import android.content.Intent;
 import android.database.Cursor;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuItem;
@@ -42,7 +43,6 @@ import de.dennisguse.opentracks.fragments.DeleteMarkerDialogFragment;
 import de.dennisguse.opentracks.fragments.DeleteMarkerDialogFragment.DeleteMarkerCaller;
 import de.dennisguse.opentracks.services.TrackRecordingService;
 import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
-import de.dennisguse.opentracks.services.TrackRecordingServiceStatus;
 import de.dennisguse.opentracks.util.ActivityUtils;
 import de.dennisguse.opentracks.util.IntentUtils;
 
@@ -51,7 +51,7 @@ import de.dennisguse.opentracks.util.IntentUtils;
  *
  * @author Leif Hendrik Wilden
  */
-public class MarkerListActivity extends AbstractActivity implements DeleteMarkerCaller, TrackRecordingServiceStatus.Listener {
+public class MarkerListActivity extends AbstractActivity implements DeleteMarkerCaller {
 
     public static final String EXTRA_TRACK_ID = "track_id";
 
@@ -59,8 +59,8 @@ public class MarkerListActivity extends AbstractActivity implements DeleteMarker
 
     private ContentProviderUtils contentProviderUtils;
 
-    private Track.Id recordingTrackId;
-    private boolean recordingTrackPaused;
+    private TrackRecordingService.RecordingStatus recordingStatus = TrackRecordingService.STATUS_DEFAULT;
+
     private Track track;
     private MarkerResourceCursorAdapter resourceCursorAdapter;
 
@@ -74,9 +74,13 @@ public class MarkerListActivity extends AbstractActivity implements DeleteMarker
         @Override
         public void run() {
             TrackRecordingService service = trackRecordingServiceConnection.getServiceIfBound();
-            if (service != null) {
-                service.addListener(MarkerListActivity.this);
+            if (service == null) {
+                Log.w(TAG, "could not get TrackRecordingService");
+                return;
             }
+
+            service.getRecordingStatusObservable()
+                    .observe(MarkerListActivity.this, status -> onRecordingStatusChanged(status));
         }
     };
 
@@ -171,14 +175,14 @@ public class MarkerListActivity extends AbstractActivity implements DeleteMarker
         insertMarkerMenuItem = menu.findItem(R.id.marker_list_insert_marker);
 
         searchMenuItem = menu.findItem(R.id.marker_list_search);
-        ActivityUtils.configureSearchWidget(this, searchMenuItem, null);
+        ActivityUtils.configureSearchWidget(this, searchMenuItem);
 
         return super.onCreateOptionsMenu(menu);
     }
 
     @Override
     public boolean onPrepareOptionsMenu(Menu menu) {
-        insertMarkerMenuItem.setVisible(track != null && track.getId().equals(recordingTrackId) && !recordingTrackPaused);
+        insertMarkerMenuItem.setVisible(track != null && track.getId().equals(recordingStatus.getTrackId()) && !recordingStatus.isPaused());
         return super.onPrepareOptionsMenu(menu);
     }
 
@@ -257,15 +261,16 @@ public class MarkerListActivity extends AbstractActivity implements DeleteMarker
 
     @Override
     public void onBackPressed() {
+        SearchView searchView = (SearchView) searchMenuItem.getActionView();
+        if (!searchView.isIconified()) {
+            searchView.setIconified(true);
+        }
+
         if (loaderCallbacks.getSearchQuery() != null) {
             loaderCallbacks.setSearch(null);
             return;
         }
-        SearchView searchView = (SearchView) searchMenuItem.getActionView();
-        if (!searchView.isIconified()) {
-            searchView.setIconified(true);
-            return;
-        }
+
         super.onBackPressed();
     }
 
@@ -290,6 +295,10 @@ public class MarkerListActivity extends AbstractActivity implements DeleteMarker
         // Do nothing
     }
 
+    private void onRecordingStatusChanged(TrackRecordingService.RecordingStatus status) {
+        recordingStatus = status;
+    }
+
     private class MarkerLoaderCallback implements LoaderManager.LoaderCallbacks<Cursor> {
 
         private String searchQuery = null;
@@ -344,14 +353,4 @@ public class MarkerListActivity extends AbstractActivity implements DeleteMarker
             resourceCursorAdapter.swapCursor(null);
         }
     }
-
-    @Override
-    public void onTrackRecordingPaused(boolean isPaused) {
-        recordingTrackPaused = isPaused;
-    }
-
-    @Override
-    public void onTrackRecordingId(Track.Id trackId) {
-        recordingTrackId = trackId;
-    }
 }

src/main/java/de/dennisguse/opentracks/TrackController.java

@@ -1,246 +0,0 @@
-/*
- * Copyright 2012 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package de.dennisguse.opentracks;
-
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.graphics.drawable.TransitionDrawable;
-import android.os.Handler;
-import android.view.MotionEvent;
-import android.view.View;
-import android.view.accessibility.AccessibilityEvent;
-
-import java.time.Duration;
-
-import de.dennisguse.opentracks.databinding.TrackControllerBinding;
-import de.dennisguse.opentracks.services.TrackRecordingService;
-import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
-import de.dennisguse.opentracks.util.ActivityUtils;
-import de.dennisguse.opentracks.util.StringUtils;
-
-/**
- * Track controller for record, pause, resume, and stop.
- *
- * @author Jimmy Shih
- */
-public class TrackController implements View.OnTouchListener {
-
-    private static final String TAG = TrackController.class.getSimpleName();
-
-    private static final Duration UI_UPDATE_INTERVAL = Duration.ofSeconds(1);
-
-    private final Activity activity;
-    private final TrackRecordingServiceConnection trackRecordingServiceConnection;
-    private final Handler handlerUpdateTotalTime = new Handler();
-    private final boolean alwaysShow;
-
-    private Runnable buttonDelay;
-    private final int buttonDelayDuration;
-
-    private final TrackControllerBinding viewBinding;
-    private final TransitionDrawable transition;
-
-    private boolean isRecording;
-    private boolean isRecordingPaused;
-    private Duration totalTime;
-    private boolean isResumed = false;
-
-    private final Callback callback;
-
-    // A runnable to update the total time.
-    private final Runnable updateTotalTimeRunnable = new Runnable() {
-        public void run() {
-            if (isResumed && isRecording && !isRecordingPaused) {
-                updateTotalTime();
-                setTotalTime();
-                handlerUpdateTotalTime.postDelayed(this, UI_UPDATE_INTERVAL.toMillis());
-            }
-        }
-    };
-
-    @SuppressLint("ClickableViewAccessibility")
-    TrackController(Activity activity, TrackControllerBinding viewBinding, TrackRecordingServiceConnection trackRecordingServiceConnection, boolean alwaysShow, Callback callback) {
-        this.activity = activity;
-        this.viewBinding = viewBinding;
-        this.trackRecordingServiceConnection = trackRecordingServiceConnection;
-        this.alwaysShow = alwaysShow;
-        this.callback = callback;
-
-        buttonDelayDuration = activity.getResources().getInteger(R.integer.buttonDelayMillis);
-
-        viewBinding.trackControllerRecord.setOnTouchListener(this);
-        viewBinding.trackControllerRecord.setOnClickListener((view) -> {
-            if (buttonDelay != null || (isRecording && !isRecordingPaused)) {
-                return;
-            }
-
-            callback.recordStart();
-        });
-
-        viewBinding.trackControllerStop.setOnTouchListener(this);
-        transition = (TransitionDrawable) viewBinding.trackControllerContainer.getBackground();
-    }
-
-    @SuppressLint("ClickableViewAccessibility") //We do accessibility manually.
-    @Override
-    public boolean onTouch(final View view, MotionEvent event) {
-        if (event.getAction() == MotionEvent.ACTION_MOVE) {
-            return false;
-        }
-
-        if (buttonDelay != null && event.getAction() == MotionEvent.ACTION_UP) {
-            handlerUpdateTotalTime.removeCallbacks(buttonDelay);
-            buttonDelay = null;
-            view.setPressed(false);
-
-            transition.resetTransition();
-
-            showStatusSetDefaultText();
-
-            return false;
-        }
-
-        //Trigger button pressed animation
-        view.setPressed(true);
-
-        //To pause a recording
-        if (viewBinding.trackControllerRecord.equals(view)
-                && event.getAction() == MotionEvent.ACTION_DOWN
-                && isRecording && !isRecordingPaused) {
-
-            transition.startTransition(buttonDelayDuration);
-
-            ActivityUtils.vibrate(activity, 150);
-            viewBinding.trackControllerStatus.setText(R.string.hold_to_pause);
-
-            buttonDelay = () -> {
-                view.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_CLICKED);
-                view.performClick();
-                callback.recordPause();
-
-                transition.resetTransition();
-
-                ActivityUtils.vibrate(activity, 1000);
-            };
-            handlerUpdateTotalTime.postDelayed(buttonDelay, buttonDelayDuration);
-            return true;
-        }
-
-        //To stop a recording
-        if (viewBinding.trackControllerStop.equals(view)
-                && event.getAction() == MotionEvent.ACTION_DOWN
-                && isRecording) {
-
-
-            transition.startTransition(buttonDelayDuration);
-
-            ActivityUtils.vibrate(activity, 150);
-            viewBinding.trackControllerStatus.setText(R.string.hold_to_stop);
-
-            buttonDelay = () -> {
-                view.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_CLICKED);
-                callback.recordStop();
-                ActivityUtils.vibrate(activity, 1000);
-
-                transition.resetTransition();
-            };
-            handlerUpdateTotalTime.postDelayed(buttonDelay, buttonDelayDuration);
-            return true;
-        }
-
-        return false;
-    }
-
-    public void update(boolean recording, boolean paused) {
-        if (!isResumed) {
-            handlerUpdateTotalTime.removeCallbacks(updateTotalTimeRunnable);
-            return;
-        }
-        isRecording = recording;
-        isRecordingPaused = paused;
-        boolean visible = alwaysShow || isRecording;
-        viewBinding.trackControllerContainer.setVisibility(visible ? View.VISIBLE : View.GONE);
-
-        if (!visible) {
-            handlerUpdateTotalTime.removeCallbacks(updateTotalTimeRunnable);
-            return;
-        }
-
-        if (isRecording && !isRecordingPaused) {
-            handlerUpdateTotalTime.postDelayed(updateTotalTimeRunnable, UI_UPDATE_INTERVAL.toMillis());
-        }
-
-        viewBinding.trackControllerRecord.setImageResource(isRecording && !isRecordingPaused ? R.drawable.ic_button_pause : R.drawable.button_record);
-        viewBinding.trackControllerRecord.setContentDescription(activity.getString(isRecording && !isRecordingPaused ? R.string.image_pause : R.string.image_record));
-
-        viewBinding.trackControllerStop.setEnabled(isRecording);
-
-        viewBinding.trackControllerStatus.setVisibility(isRecording ? View.VISIBLE : View.INVISIBLE);
-        if (isRecording) {
-            viewBinding.trackControllerStatus.setTextColor(activity.getResources().getColor(isRecordingPaused ? android.R.color.white : R.color.recording_text));
-            showStatusSetDefaultText();
-        }
-
-        viewBinding.trackControllerTotalTime.setVisibility(isRecording ? View.VISIBLE : View.INVISIBLE);
-
-        if (isRecording) {
-            updateTotalTime();
-            setTotalTime();
-        }
-    }
-
-    void onResume(boolean recording, boolean paused) {
-        isResumed = true;
-        update(recording, paused);
-    }
-
-    void onPause() {
-        isResumed = false;
-        handlerUpdateTotalTime.removeCallbacks(updateTotalTimeRunnable);
-    }
-
-    public void hide() {
-        viewBinding.trackControllerContainer.setVisibility(View.GONE);
-    }
-
-    public void show() {
-        viewBinding.trackControllerContainer.setVisibility(View.VISIBLE);
-    }
-
-    private void updateTotalTime() {
-        TrackRecordingService trackRecordingService = trackRecordingServiceConnection.getServiceIfBound();
-        if (trackRecordingService != null) {
-            totalTime = trackRecordingService.getTotalTime();
-        }
-    }
-
-    private void setTotalTime() {
-        if (totalTime != null) {
-            viewBinding.trackControllerTotalTime.setText(StringUtils.formatElapsedTimeWithHour(totalTime));
-        }
-    }
-
-    private void showStatusSetDefaultText() {
-        viewBinding.trackControllerStatus.setText(isRecordingPaused ? R.string.generic_paused : R.string.generic_recording);
-    }
-
-    public interface Callback {
-        void recordStart();
-        void recordPause();
-        void recordStop();
-    }
-}

src/main/java/de/dennisguse/opentracks/TrackDeleteActivity.java

@@ -1,101 +0,0 @@
-/*
- * Copyright 2013 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package de.dennisguse.opentracks;
-
-import android.content.Intent;
-import android.os.Bundle;
-import android.os.PowerManager;
-import android.view.View;
-
-import java.util.List;
-
-import de.dennisguse.opentracks.content.data.Track;
-import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
-import de.dennisguse.opentracks.databinding.TrackDeleteBinding;
-import de.dennisguse.opentracks.util.SystemUtils;
-
-/**
- * An activity for deleting tracks.
- *
- * @author Jimmy Shih
- */
-public class TrackDeleteActivity extends AbstractActivity {
-
-    public static final String EXTRA_TRACK_IDS = "track_ids";
-
-    private List<Track.Id> trackIds;
-
-    private Thread deleteThread;
-
-    private TrackDeleteBinding viewBinding;
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        setResult(RESULT_CANCELED);
-
-        Intent intent = getIntent();
-        trackIds = intent.getParcelableArrayListExtra(EXTRA_TRACK_IDS);
-        deleteThread = new Thread(() -> {
-            ContentProviderUtils contentProviderUtils = new ContentProviderUtils(TrackDeleteActivity.this);
-
-            PowerManager.WakeLock wakeLock = SystemUtils.acquireWakeLock(TrackDeleteActivity.this, null);
-            contentProviderUtils.deleteTracks(TrackDeleteActivity.this, trackIds);
-
-            wakeLock = SystemUtils.releaseWakeLock(wakeLock);
-            if (Thread.interrupted()) {
-                return;
-            }
-
-            runOnUiThread(TrackDeleteActivity.this::onAsyncTaskCompleted);
-        });
-        deleteThread.start();
-    }
-
-    @Override
-    protected void onDestroy() {
-        super.onDestroy();
-        viewBinding = null;
-    }
-
-    @Override
-    protected void onStart() {
-        super.onStart();
-        if (deleteThread.getState() == Thread.State.TERMINATED) {
-            onAsyncTaskCompleted();
-        }
-    }
-
-    @Override
-    protected void onStop() {
-        super.onStop();
-        deleteThread.interrupt();
-    }
-
-    @Override
-    protected View getRootView() {
-        viewBinding = TrackDeleteBinding.inflate(getLayoutInflater());
-        return viewBinding.getRoot();
-    }
-
-    public void onAsyncTaskCompleted() {
-        viewBinding.progressbar.setVisibility(View.INVISIBLE);
-        setResult(RESULT_OK);
-        finish();
-    }
-}

src/main/java/de/dennisguse/opentracks/TrackListActivity.java

@@ -38,6 +38,7 @@ import android.view.View;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.appcompat.widget.SearchView;
 import androidx.appcompat.widget.Toolbar;
 import androidx.core.app.ActivityCompat;
@@ -55,7 +56,6 @@ import de.dennisguse.opentracks.databinding.TrackListBinding;
 import de.dennisguse.opentracks.fragments.ConfirmDeleteDialogFragment;
 import de.dennisguse.opentracks.services.TrackRecordingService;
 import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
-import de.dennisguse.opentracks.services.TrackRecordingServiceStatus;
 import de.dennisguse.opentracks.services.handlers.GpsStatusValue;
 import de.dennisguse.opentracks.settings.SettingsActivity;
 import de.dennisguse.opentracks.util.ActivityUtils;
@@ -71,16 +71,16 @@ import de.dennisguse.opentracks.util.TrackIconUtils;
  *
  * @author Leif Hendrik Wilden
  */
-public class TrackListActivity extends AbstractListActivity implements ConfirmDeleteDialogFragment.ConfirmDeleteCaller, TrackController.Callback, TrackRecordingServiceStatus.Listener {
+public class TrackListActivity extends AbstractTrackDeleteActivity implements ConfirmDeleteDialogFragment.ConfirmDeleteCaller, ControllerFragment.Callback {
 
     private static final String TAG = TrackListActivity.class.getSimpleName();
 
+    protected static final int GPS_REQUEST_CODE = 6;
+
     // The following are set in onCreate
     private SharedPreferences sharedPreferences;
     private TrackRecordingServiceConnection trackRecordingServiceConnection;
-    private TrackController trackController;
     private ResourceCursorAdapter resourceCursorAdapter;
-    private GpsStatusValue gpsStatusValue;
 
     private TrackListBinding viewBinding;
 
@@ -89,7 +89,8 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
     // Preferences
     private boolean metricUnits = true;
 
-    private boolean recordingTrackPaused = true;
+    private GpsStatusValue gpsStatusValue = TrackRecordingService.STATUS_GPS_DEFAULT;
+    private TrackRecordingService.RecordingStatus recordingStatus = TrackRecordingService.STATUS_DEFAULT;
 
     // Callback when an item is selected in the contextual action mode
     private final ContextualActionModeCallback contextualActionModeCallback = new ContextualActionModeCallback() {
@@ -118,7 +119,6 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
                 runOnUiThread(() -> {
                     TrackListActivity.this.invalidateOptionsMenu();
                     loaderCallbacks.restart();
-                    trackController.update(isRecording(), recordingTrackPaused);
                 });
             }
         }
@@ -132,28 +132,27 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
     private final Runnable bindChangedCallback = new Runnable() {
         @Override
         public void run() {
-            // After binding changes (e.g., becomes available), update the total time in trackController.
-            runOnUiThread(() -> trackController.update(isRecording(), recordingTrackPaused));
-
             TrackRecordingService service = trackRecordingServiceConnection.getServiceIfBound();
             if (service == null) {
-                Log.d(TAG, "service not available to start gps or a new recording");
-                gpsStatusValue = GpsStatusValue.GPS_NONE;
+                Log.e(TAG, "service not available to start gps or a new recording");
                 return;
             }
 
+            service.getRecordingStatusObservable()
+                    .observe(TrackListActivity.this, status -> onRecordingStatusChanged(status));
+
             // Get GPS status and listen GPS status changes.
-            gpsStatusValue = service.getGpsStatus();
-            updateGpsMenuItem(true, isRecording());
-            service.addListener(TrackListActivity.this);
+            service.getGpsStatusObservable()
+                    .observe(TrackListActivity.this, status -> onGpsStatusChanged(status));
 
-            if (isGpsStarted()) {
+            updateGpsMenuItem(true, recordingStatus.isRecording());
+
+            if (service.getGpsStatusObservable().getValue().isGpsStarted()) {
                 return;
             }
 
+            //TODO Not cool to do this in a callback that might be called more than once!
             service.tryStartGps();
-            gpsStatusValue = GpsStatusValue.GPS_ENABLED;
-            updateGpsMenuItem(true, isRecording());
         }
     };
 
@@ -165,23 +164,13 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
         super.onCreate(savedInstanceState);
         setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL);
 
-        gpsStatusValue = GpsStatusValue.GPS_NONE;
-
         sharedPreferences = PreferencesUtils.getSharedPreferences(this);
 
         trackRecordingServiceConnection = new TrackRecordingServiceConnection(bindChangedCallback);
-        trackController = new TrackController(this, viewBinding.trackControllerContainer, trackRecordingServiceConnection, true, this);
-
-
-        // Show trackController when search dialog is dismissed
-        SearchManager searchManager = (SearchManager) getSystemService(SEARCH_SERVICE);
-        if (searchManager != null) {
-            searchManager.setOnDismissListener(() -> trackController.show());
-        }
 
         viewBinding.trackList.setEmptyView(viewBinding.trackListEmptyView);
         viewBinding.trackList.setOnItemClickListener((parent, view, position, trackId) -> {
-            if (isRecording() && trackId == recordingTrackId.getId()) {
+            if (recordingStatus.isRecording() && trackId == recordingStatus.getTrackId().getId()) {
                 // Is recording -> open record activity.
                 Intent newIntent = IntentUtils.newIntent(TrackListActivity.this, TrackRecordingActivity.class)
                         .putExtra(TrackRecordedActivity.EXTRA_TRACK_ID, new Track.Id(trackId));
@@ -211,7 +200,7 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
                 int markerCountIndex = cursor.getColumnIndexOrThrow(TracksColumns.MARKER_COUNT);
 
                 Track.Id trackId = new Track.Id(cursor.getLong(idIndex));
-                boolean isRecording = trackId.equals(recordingTrackId);
+                boolean isRecording = trackId.equals(recordingStatus.getTrackId());
                 String icon = cursor.getString(iconIndex);
                 int iconId = TrackIconUtils.getIconDrawable(icon);
                 String name = cursor.getString(nameIndex);
@@ -222,7 +211,7 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
                 String category = icon != null && !icon.equals("") ? null : cursor.getString(categoryIndex);
                 String description = cursor.getString(descriptionIndex);
 
-                ListItemUtils.setListItem(TrackListActivity.this, view, isRecording, recordingTrackPaused,
+                ListItemUtils.setListItem(TrackListActivity.this, view, isRecording, recordingStatus.isPaused(),
                         iconId, R.string.image_track, name, totalTime, totalDistance, markerCount,
                         startTime, true, category, description, false);
             }
@@ -250,14 +239,6 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
         trackRecordingServiceConnection.startConnection(this);
     }
 
-    @Override
-    protected void onPause() {
-        super.onPause();
-
-        // Update UI
-        trackController.onPause();
-    }
-
     @Override
     protected void onResume() {
         super.onResume();
@@ -265,7 +246,6 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
         // Update UI
         this.invalidateOptionsMenu();
         LoaderManager.getInstance(this).restartLoader(0, null, loaderCallbacks);
-        trackController.onResume(isRecording(), recordingTrackPaused);
     }
 
     @Override
@@ -298,7 +278,13 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
         getMenuInflater().inflate(R.menu.track_list, menu);
 
         searchMenuItem = menu.findItem(R.id.track_list_search);
-        ActivityUtils.configureSearchWidget(this, searchMenuItem, trackController);
+        SearchView searchView = ActivityUtils.configureSearchWidget(this, searchMenuItem);
+        searchView.setOnCloseListener(() -> {
+            searchView.clearFocus();
+            searchMenuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
+            return true;
+        });
+
         startGpsMenuItem = menu.findItem(R.id.track_list_start_gps);
 
         return super.onCreateOptionsMenu(menu);
@@ -306,7 +292,7 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
 
     @Override
     public boolean onPrepareOptionsMenu(Menu menu) {
-        updateMenuItems(isGpsStarted(), isRecording());
+        updateGpsMenuItem(gpsStatusValue.isGpsStarted(), recordingStatus.isRecording());
 
         SearchView searchView = (SearchView) searchMenuItem.getActionView();
         searchView.setQuery("", false);
@@ -322,7 +308,7 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
                 startActivity(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS));
             } else {
                 // Invoke trackRecordingService
-                if (!isGpsStarted()) {
+                if (!gpsStatusValue.isGpsStarted()) {
                     trackRecordingServiceConnection.startAndBind(this);
                     bindChangedCallback.run();
                 } else {
@@ -355,6 +341,12 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
             return true;
         }
 
+        if (item.getItemId() == R.id.track_list_search) {
+            SearchView searchView = (SearchView) searchMenuItem.getActionView();
+            searchView.setIconified(false);
+            searchMenuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
+        }
+
         return super.onOptionsItemSelected(item);
     }
 
@@ -366,17 +358,23 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
         return super.onKeyUp(keyCode, event);
     }
 
+    @Override
+    public void overridePendingTransition(int enterAnim, int exitAnim) {
+        //Disable animations as it is weird going into searchMode; looks okay for SplashScreen.
+    }
+
     @Override
     public void onBackPressed() {
+        SearchView searchView = (SearchView) searchMenuItem.getActionView();
+        if (!searchView.isIconified()) {
+            searchView.setIconified(true);
+        }
+
         if (loaderCallbacks.getSearchQuery() != null) {
             loaderCallbacks.setSearch(null);
             return;
         }
-        SearchView searchView = (SearchView) searchMenuItem.getActionView();
-        if (!searchView.isIconified()) {
-            searchView.setIconified(true);
-            return;
-        }
+
         super.onBackPressed();
     }
 
@@ -396,25 +394,20 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
         loaderCallbacks.setSearch(searchQuery);
     }
 
-    @Override
-    public boolean onSearchRequested() {
-        // Hide trackController when search dialog is shown
-        trackController.hide();
-        return super.onSearchRequested();
-    }
-
     @Override
     protected TrackRecordingServiceConnection getTrackRecordingServiceConnection() {
         return trackRecordingServiceConnection;
     }
 
     @Override
-    protected void onTrackDeleted() {
+    protected void onDeleteConfirmed() {
         // Do nothing
     }
 
-    private boolean isGpsStarted() {
-        return gpsStatusValue != GpsStatusValue.GPS_NONE && gpsStatusValue != GpsStatusValue.GPS_DISABLED;
+    @Nullable
+    @Override
+    protected Track.Id getRecordingTrackId() {
+        return recordingStatus.getTrackId();
     }
 
     private void requestGPSPermissions() {
@@ -423,22 +416,13 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
         }
     }
 
-    /**
-     * Updates the menu items with not fixed icon for gps option.
-     *
-     * @param isGpsStarted true if gps is started
-     * @param isRecording  true if recording
-     */
-    private void updateMenuItems(boolean isGpsStarted, boolean isRecording) {
-        updateGpsMenuItem(isGpsStarted, isRecording);
-    }
-
     /**
      * Updates the menu items with the icon specified.
      *
      * @param isGpsStarted true if gps is started
      * @param isRecording  true if recording
      */
+    //TODO Check if if can be avoided to call this outside of onGpsStatusChanged()
     private void updateGpsMenuItem(boolean isGpsStarted, boolean isRecording) {
         if (startGpsMenuItem != null) {
             startGpsMenuItem.setVisible(!isRecording);
@@ -477,7 +461,6 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
             return true;
         }
 
-
         if (itemId == R.id.list_context_menu_edit) {
             Intent intent = IntentUtils.newIntent(this, TrackEditActivity.class)
                     .putExtra(TrackEditActivity.EXTRA_TRACK_ID, trackIds[0]);
@@ -489,6 +472,7 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
             deleteTracks(trackIds);
             return true;
         }
+
         if (itemId == R.id.list_context_menu_select_all) {
             for (int i = 0; i < viewBinding.trackList.getCount(); i++) {
                 viewBinding.trackList.setItemChecked(i, true);
@@ -554,55 +538,36 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
 
     @Override
     public void recordStart() {
-        if (recordingTrackId == null) {
+        if (recordingStatus.getTrackId() == null) {
             // Not recording -> Recording
-            updateMenuItems(false, true);
+            updateGpsMenuItem(false, true);
             Intent newIntent = IntentUtils.newIntent(TrackListActivity.this, TrackRecordingActivity.class);
             startActivity(newIntent);
-        } else if (recordingTrackPaused) {
+        } else if (recordingStatus.isPaused()) {
             // Paused -> Resume
-            updateMenuItems(false, true);
+            updateGpsMenuItem(false, true);
             trackRecordingServiceConnection.resumeTrack();
-            trackController.update(true, false);
         }
     }
 
     @Override
     public void recordPause() {
-        updateMenuItems(false, true);
+        updateGpsMenuItem(false, true);
         trackRecordingServiceConnection.pauseTrack();
-        trackController.update(true, true);
     }
 
     @Override
     public void recordStop() {
-        updateMenuItems(false, false);
+        updateGpsMenuItem(false, false);
         trackRecordingServiceConnection.stopRecording(TrackListActivity.this);
     }
 
-    private boolean isRecording() {
-        return recordingTrackId != null;
-    }
-
-    @Override
-    public void onGpsStatus(GpsStatusValue newStatus) {
+    public void onGpsStatusChanged(GpsStatusValue newStatus) {
         gpsStatusValue = newStatus;
-        updateGpsMenuItem(true, isRecording());
+        updateGpsMenuItem(true, recordingStatus.isRecording());
     }
 
-    @Override
-    public void onTrackRecordingPaused(boolean isPaused) {
-        if (recordingTrackPaused != isPaused) {
-            trackController.update(isRecording(), isPaused);
-        }
-        recordingTrackPaused = isPaused;
-    }
-
-    @Override
-    public void onTrackRecordingId(Track.Id trackId) {
-        if (!isRecording() && trackId != null) {
-            trackController.update(true, recordingTrackPaused);
-        }
-        recordingTrackId = trackId;
+    private void onRecordingStatusChanged(TrackRecordingService.RecordingStatus status) {
+        recordingStatus = status;
     }
 }

src/main/java/de/dennisguse/opentracks/TrackRecordedActivity.java

@@ -17,6 +17,7 @@
 package de.dennisguse.opentracks;
 
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.Menu;
@@ -24,6 +25,7 @@ import android.view.MenuItem;
 import android.view.View;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.core.view.ViewCompat;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentActivity;
@@ -32,7 +34,6 @@ import androidx.viewpager2.adapter.FragmentStateAdapter;
 import com.google.android.material.tabs.TabLayoutMediator;
 
 import de.dennisguse.opentracks.content.TrackDataHub;
-import de.dennisguse.opentracks.content.data.Marker;
 import de.dennisguse.opentracks.content.data.Track;
 import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
 import de.dennisguse.opentracks.databinding.TrackRecordedBinding;
@@ -40,12 +41,13 @@ import de.dennisguse.opentracks.fragments.ChartFragment;
 import de.dennisguse.opentracks.fragments.ConfirmDeleteDialogFragment;
 import de.dennisguse.opentracks.fragments.IntervalsFragment;
 import de.dennisguse.opentracks.fragments.StatisticsRecordedFragment;
+import de.dennisguse.opentracks.services.TrackDeleteService;
 import de.dennisguse.opentracks.services.TrackRecordingService;
 import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
-import de.dennisguse.opentracks.services.TrackRecordingServiceStatus;
 import de.dennisguse.opentracks.settings.SettingsActivity;
 import de.dennisguse.opentracks.util.IntentDashboardUtils;
 import de.dennisguse.opentracks.util.IntentUtils;
+import de.dennisguse.opentracks.util.PreferencesUtils;
 
 /**
  * An activity to show the track detail, record a new track or resumes an existing one.
@@ -54,24 +56,25 @@ import de.dennisguse.opentracks.util.IntentUtils;
  * @author Rodrigo Damazio
  */
 //TODO Should not use TrackRecordingServiceConnection; only used to determine if there is NO current recording, to enable resume functionality.
-public class TrackRecordedActivity extends AbstractListActivity implements ConfirmDeleteDialogFragment.ConfirmDeleteCaller, TrackActivityDataHubInterface, TrackRecordingServiceStatus.Listener {
+public class TrackRecordedActivity extends AbstractTrackDeleteActivity implements ConfirmDeleteDialogFragment.ConfirmDeleteCaller, TrackActivityDataHubInterface {
 
     private static final String TAG = TrackRecordedActivity.class.getSimpleName();
 
     public static final String VIEW_TRACK_ICON = "track_icon";
 
     public static final String EXTRA_TRACK_ID = "track_id";
-    public static final String EXTRA_MARKER_ID = "marker_id";
 
     private static final String CURRENT_TAB_TAG_KEY = "current_tab_tag_key";
 
     // The following are set in onCreate.
     private ContentProviderUtils contentProviderUtils;
+    private SharedPreferences sharedPreferences;
     private TrackDataHub trackDataHub;
 
     private TrackRecordedBinding viewBinding;
 
     private Track.Id trackId;
+    private TrackRecordingService.RecordingStatus recordingStatus = TrackRecordingService.STATUS_DEFAULT;
 
     private TrackRecordingServiceConnection trackRecordingServiceConnection;
 
@@ -79,8 +82,22 @@ public class TrackRecordedActivity extends AbstractListActivity implements Confi
         @Override
         public void run() {
             TrackRecordingService service = trackRecordingServiceConnection.getServiceIfBound();
-            if (service != null) {
-                service.addListener(TrackRecordedActivity.this);
+            if (service == null) {
+                Log.w(TAG, "could not get TrackRecordingService");
+                return;
+            }
+
+            service.getRecordingStatusObservable()
+                    .observe(TrackRecordedActivity.this, status -> onRecordingStatusChanged(status));
+
+        }
+    };
+
+    private final SharedPreferences.OnSharedPreferenceChangeListener sharedPreferenceChangeListener = new SharedPreferences.OnSharedPreferenceChangeListener() {
+        @Override
+        public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+            if (PreferencesUtils.isKey(TrackRecordedActivity.this, R.string.recording_distance_interval_key, key)) {
+                trackDataHub.setRecordingDistanceInterval(PreferencesUtils.getRecordingDistanceInterval(sharedPreferences, TrackRecordedActivity.this));
             }
         }
     };
@@ -90,6 +107,8 @@ public class TrackRecordedActivity extends AbstractListActivity implements Confi
         super.onCreate(savedInstanceState);
 
         contentProviderUtils = new ContentProviderUtils(this);
+        sharedPreferences = PreferencesUtils.getSharedPreferences(this);
+
         handleIntent(getIntent());
 
         trackDataHub = new TrackDataHub(this);
@@ -110,6 +129,10 @@ public class TrackRecordedActivity extends AbstractListActivity implements Confi
     @Override
     protected void onStart() {
         super.onStart();
+
+        sharedPreferences.registerOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
+        sharedPreferenceChangeListener.onSharedPreferenceChanged(sharedPreferences, null);
+
         trackDataHub.start();
     }
 
@@ -132,6 +155,7 @@ public class TrackRecordedActivity extends AbstractListActivity implements Confi
         super.onStop();
         trackRecordingServiceConnection.unbind(this);
         trackDataHub.stop();
+        sharedPreferences.unregisterOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
     }
 
     @Override
@@ -162,7 +186,7 @@ public class TrackRecordedActivity extends AbstractListActivity implements Confi
     @Override
     public boolean onPrepareOptionsMenu(Menu menu) {
         menu.findItem(R.id.track_detail_markers).setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
-        menu.findItem(R.id.track_detail_resume_track).setVisible(recordingTrackId == null);
+        menu.findItem(R.id.track_detail_resume_track).setVisible(!recordingStatus.isRecording());
         Track track = contentProviderUtils.getTrack(trackId);
         setTitle(track != null ? track.getName() : "");
         return super.onPrepareOptionsMenu(menu);
@@ -217,14 +241,22 @@ public class TrackRecordedActivity extends AbstractListActivity implements Confi
         return super.onOptionsItemSelected(item);
     }
 
+    @Nullable
     @Override
-    protected TrackRecordingServiceConnection getTrackRecordingServiceConnection() {
-        // Not needed.
-        return null;
+    protected Track.Id getRecordingTrackId() {
+        return recordingStatus.getTrackId();
     }
 
     @Override
-    protected void onTrackDeleted() {
+    protected void onTrackDeleteStatus(TrackDeleteService.DeleteStatus deleteStatus) {
+        super.onTrackDeleteStatus(deleteStatus);
+        if (deleteStatus.isDeleted(trackId)) {
+            runOnUiThread(this::finish);
+        }
+    }
+
+    @Override
+    protected void onDeleteConfirmed() {
         runOnUiThread(this::finish);
     }
 
@@ -238,18 +270,6 @@ public class TrackRecordedActivity extends AbstractListActivity implements Confi
 
     private void handleIntent(Intent intent) {
         trackId = intent.getParcelableExtra(EXTRA_TRACK_ID);
-
-        Marker.Id markerId = intent.getParcelableExtra(EXTRA_MARKER_ID);
-        if (markerId != null) {
-            // Use the trackId from the marker
-            Marker marker = contentProviderUtils.getMarker(markerId);
-            if (marker == null) {
-                finish();
-                return;
-            }
-            trackId = marker.getTrackId();
-        }
-
         if (trackId == null) {
             Log.e(TAG, "TrackDetailActivity needs EXTRA_TRACK_ID.");
             finish();
@@ -305,8 +325,7 @@ public class TrackRecordedActivity extends AbstractListActivity implements Confi
         startPostponedEnterTransition();
     }
 
-    @Override
-    public void onTrackRecordingId(Track.Id trackId) {
-        recordingTrackId = trackId;
+    private void onRecordingStatusChanged(TrackRecordingService.RecordingStatus status) {
+        recordingStatus = status;
     }
 }

src/main/java/de/dennisguse/opentracks/TrackRecordingActivity.java

@@ -28,7 +28,6 @@ import de.dennisguse.opentracks.fragments.IntervalsFragment;
 import de.dennisguse.opentracks.fragments.StatisticsRecordingFragment;
 import de.dennisguse.opentracks.services.TrackRecordingService;
 import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
-import de.dennisguse.opentracks.services.TrackRecordingServiceStatus;
 import de.dennisguse.opentracks.settings.SettingsActivity;
 import de.dennisguse.opentracks.util.IntentDashboardUtils;
 import de.dennisguse.opentracks.util.IntentUtils;
@@ -44,7 +43,7 @@ import de.dennisguse.opentracks.util.TrackUtils;
  */
 //NOTE: This activity does NOT react to preference changes of R.string.recording_track_id_key.
 //This mode of communication should be removed anyhow.
-public class TrackRecordingActivity extends AbstractActivity implements ChooseActivityTypeDialogFragment.ChooseActivityTypeCaller, TrackActivityDataHubInterface, TrackController.Callback, TrackRecordingServiceStatus.Listener {
+public class TrackRecordingActivity extends AbstractActivity implements ChooseActivityTypeDialogFragment.ChooseActivityTypeCaller, TrackActivityDataHubInterface, ControllerFragment.Callback {
 
     public static final String EXTRA_TRACK_ID = "track_id";
 
@@ -57,25 +56,27 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
     private SharedPreferences sharedPreferences;
     private TrackRecordingServiceConnection trackRecordingServiceConnection;
     private TrackDataHub trackDataHub;
-    private TrackController trackController;
 
     private TrackRecordingBinding viewBinding;
 
     // Initialized from Intent; if a new track recording is started, a new TrackId will be provided by TrackRecordingService
+    @Deprecated
     private Track.Id trackId;
-    private boolean recordingTrackPaused;
+
+    private TrackRecordingService.RecordingStatus recordingStatus = TrackRecordingService.STATUS_DEFAULT;
 
     private final Runnable bindChangedCallback = new Runnable() {
         @Override
         public void run() {
-            // After binding changes (is available), update the total time in trackController.
-            runOnUiThread(() -> trackController.update(true, recordingTrackPaused));
-
             TrackRecordingService service = trackRecordingServiceConnection.getServiceIfBound();
             if (service == null) {
-                Log.d(TAG, "could not get TrackRecordingService");
+                Log.w(TAG, "could not get TrackRecordingService");
                 return;
             }
+
+            service.getRecordingStatusObservable()
+                    .observe(TrackRecordingActivity.this, status -> onRecordingStatusChanged(status));
+
             if (!service.isRecording()) {
                 if (trackId == null) {
                     // trackId isn't initialized -> leads a new recording.
@@ -87,12 +88,8 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
 
                 // A recording track is on.
                 trackDataHub.loadTrack(trackId);
-                trackDataHub.setRecordingTrackId(trackId);
-
-                trackController.update(true, false);
-                trackController.onResume(true, recordingTrackPaused);
+                trackDataHub.setRecordingStatus(recordingStatus);
             }
-            service.addListener(TrackRecordingActivity.this);
         }
     };
 
@@ -108,11 +105,12 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
             if (PreferencesUtils.isKey(TrackRecordingActivity.this, R.string.stats_fullscreen_while_recording_key, key)) {
                 setFullscreenPolicy();
             }
+            if (PreferencesUtils.isKey(TrackRecordingActivity.this, R.string.recording_distance_interval_key, key)) {
+                trackDataHub.setRecordingDistanceInterval(PreferencesUtils.getRecordingDistanceInterval(sharedPreferences, TrackRecordingActivity.this));
+            }
             if (key == null) return;
-            runOnUiThread(() -> {
-                TrackRecordingActivity.this.invalidateOptionsMenu();
-                trackController.update(true, recordingTrackPaused);
-            });
+
+            runOnUiThread(TrackRecordingActivity.this::invalidateOptionsMenu);
         }
     };
 
@@ -147,8 +145,6 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
         if (savedInstanceState != null) {
             viewBinding.trackDetailActivityViewPager.setCurrentItem(savedInstanceState.getInt(CURRENT_TAB_TAG_KEY));
         }
-
-        trackController = new TrackController(this, viewBinding.trackControllerContainer, trackRecordingServiceConnection, false, this);
     }
 
     @Override
@@ -207,13 +203,12 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
         super.onResume();
 
         // Update UI
-        this.invalidateOptionsMenu();
+        invalidateOptionsMenu();
 
         if (trackId != null) {
+            //TODO Pass recordingStatus directly to them
             trackDataHub.loadTrack(trackId);
-            trackDataHub.setRecordingTrackId(trackId);
-            trackDataHub.setRecordingTrackPaused(recordingTrackPaused);
-            trackController.onResume(true, recordingTrackPaused);
+            trackDataHub.setRecordingStatus(recordingStatus);
         }
 
         /*
@@ -232,12 +227,6 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
         outState.putParcelable(EXTRA_TRACK_ID, trackId);
     }
 
-    @Override
-    protected void onPause() {
-        super.onPause();
-        trackController.onPause();
-    }
-
     @Override
     protected void onStop() {
         super.onStop();
@@ -264,7 +253,7 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
 
     @Override
     public boolean onPrepareOptionsMenu(Menu menu) {
-        updateMenuItems(recordingTrackPaused);
+        updateMenuItems(recordingStatus.isPaused());
         return super.onPrepareOptionsMenu(menu);
     }
 
@@ -339,14 +328,12 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
     public void recordStart() {
         updateMenuItems(false);
         trackRecordingServiceConnection.resumeTrack();
-        trackController.update(true, false);
     }
 
     @Override
     public void recordPause() {
         updateMenuItems(true);
         trackRecordingServiceConnection.pauseTrack();
-        trackController.update(true, true);
     }
 
     @Override
@@ -404,24 +391,12 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
         }
     }
 
-    @Override
-    public void onTrackRecordingPaused(boolean isPaused) {
-        if (recordingTrackPaused != isPaused) {
-            trackController.update(true, isPaused);
-            trackDataHub.setRecordingTrackPaused(isPaused);
-        }
-        recordingTrackPaused = isPaused;
+    private void onRecordingStatusChanged(TrackRecordingService.RecordingStatus status) {
+        recordingStatus = status;
+
+        trackDataHub.setRecordingStatus(recordingStatus);
+
         setLockscreenPolicy();
         setScreenOnPolicy();
     }
-
-    //TODO Why should this be interesting? This activity is only used for currently recording tracks.
-    @Override
-    public void onTrackRecordingId(Track.Id newTrackId) {
-        if (newTrackId != null && !newTrackId.equals(trackId)) {
-            trackId = newTrackId;
-            trackController.update(true, recordingTrackPaused);
-            trackDataHub.setRecordingTrackId(newTrackId);
-        }
-    }
 }

src/main/java/de/dennisguse/opentracks/chart/ChartPoint.java

@@ -29,12 +29,12 @@ public class ChartPoint {
 
     public ChartPoint(@NonNull TrackStatistics trackStatistics, @NonNull TrackPoint trackPoint, Speed smoothedSpeed, double smoothedAltitude_m, boolean chartByDistance, boolean metricUnits) {
         if (chartByDistance) {
-            timeOrDistance = trackStatistics.getTotalDistance().to(metricUnits);
+            timeOrDistance = trackStatistics.getTotalDistance().toKM_Miles(metricUnits);
         } else {
             timeOrDistance = trackStatistics.getTotalTime().toMillis();
         }
 
-        altitude = Distance.of(smoothedAltitude_m).to(metricUnits);
+        altitude = Distance.of(smoothedAltitude_m).toM_FT(metricUnits);
 
         speed = smoothedSpeed.to(metricUnits);
         pace = smoothedSpeed.toPace(metricUnits).toMillis() * UnitConversions.MS_TO_S * UnitConversions.S_TO_MIN;
@@ -76,4 +76,9 @@ public class ChartPoint {
     public Double getPower() {
         return power;
     }
+
+    @Override
+    public String toString() {
+        return "ChartPoint{" + "timeOrDistance=" + timeOrDistance + '}';
+    }
 }

src/main/java/de/dennisguse/opentracks/chart/ChartView.java

@@ -26,6 +26,7 @@ import android.graphics.Paint.Style;
 import android.graphics.Path;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
+import android.util.AttributeSet;
 import android.view.GestureDetector;
 import android.view.MotionEvent;
 import android.view.ScaleGestureDetector;
@@ -40,8 +41,8 @@ import androidx.core.view.GestureDetectorCompat;
 import java.text.NumberFormat;
 import java.time.Duration;
 import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.List;
-import java.util.Optional;
 
 import de.dennisguse.opentracks.MarkerDetailActivity;
 import de.dennisguse.opentracks.R;
@@ -114,7 +115,7 @@ public class ChartView extends View {
     private int effectiveWidth = 0;
     private int effectiveHeight = 0;
 
-    private final boolean chartByDistance;
+    private boolean chartByDistance = false;
     private boolean metricUnits = true;
     private boolean reportSpeed = true;
     private boolean showPointer = false;
@@ -189,9 +190,9 @@ public class ChartView extends View {
         }
     });
 
-    public ChartView(Context context, final boolean chartByDistance) {
-        super(context);
-        this.chartByDistance = chartByDistance;
+    public ChartView(Context context, AttributeSet attributeSet) {
+        super(context, attributeSet);
+
         int fontSizeSmall = ThemeUtils.getFontSizeSmallInPx(context);
         int fontSizeMedium = ThemeUtils.getFontSizeMediumInPx(context);
 
@@ -366,6 +367,10 @@ public class ChartView extends View {
         return true;
     }
 
+    public void setChartByDistance(boolean chartByDistance) {
+        this.chartByDistance = chartByDistance;
+    }
+
     public boolean getMetricUnits() {
         return metricUnits;
     }
@@ -424,7 +429,7 @@ public class ChartView extends View {
                 }
             }
             updateDimensions();
-            updatePaths();
+            updateSeries();
         }
     }
 
@@ -471,7 +476,7 @@ public class ChartView extends View {
     private void zoomIn() {
         if (canZoomIn()) {
             zoomLevel++;
-            updatePaths();
+            updateSeries();
             invalidate();
         }
     }
@@ -486,7 +491,7 @@ public class ChartView extends View {
                 scrollX = maxWidth;
                 scrollTo(scrollX, 0);
             }
-            updatePaths();
+            updateSeries();
             invalidate();
         }
     }
@@ -853,63 +858,49 @@ public class ChartView extends View {
     }
 
     /**
-     * Updates paths.
      * The path needs to be updated any time after the data or the dimensions change.
      */
-    private void updatePaths() {
+    private void updateSeries() {
         synchronized (chartPoints) {
-            for (ChartValueSeries chartValueSeries : seriesList) {
-                chartValueSeries.getPath().reset();
-            }
-            drawPaths();
-            closePaths();
+            seriesList.stream().forEach(this::updateSerie);
         }
     }
 
-    private void drawPaths() {
-        boolean[] hasMoved = new boolean[seriesList.size()];
+    private void updateSerie(ChartValueSeries series) {
+        final int yCorner = topBorder + effectiveHeight;
+        final Path path = series.getPath();
 
-        for (ChartPoint dataPoint : chartPoints) {
-            for (int i = 0; i < seriesList.size(); i++) {
-                ChartValueSeries chartValueSeries = seriesList.get(i);
+        boolean drawFirstPoint = false;
+        path.rewind();
 
-                if (!chartValueSeries.isChartPointValid(dataPoint)) {
-                    continue;
-                }
+        Iterator<ChartPoint> iterator = chartPoints.iterator();
+        while (iterator.hasNext()) {
+            ChartPoint point = iterator.next();
+            if (!series.isChartPointValid(point)) {
+                continue;
+            }
 
-                double value = chartValueSeries.extractDataFromChartPoint(dataPoint);
-                Path path = chartValueSeries.getPath();
-                int x = getX(dataPoint.getTimeOrDistance());
-                int y = getY(chartValueSeries, value);
-                if (!hasMoved[i]) {
-                    hasMoved[i] = true;
-                    path.moveTo(x, y);
-                } else {
-                    path.lineTo(x, y);
-                }
+            double value = series.extractDataFromChartPoint(point);
+            int x = getX(point.getTimeOrDistance());
+            int y = getY(series, value);
+
+            // start from lower left corner
+            if (!drawFirstPoint) {
+                path.moveTo(x, yCorner);
+                drawFirstPoint = true;
+            }
+
+            // draw graph
+            path.lineTo(x, y);
+
+            // last point: move to lower right
+            if (!iterator.hasNext()) {
+                path.lineTo(x, yCorner);
             }
         }
-    }
 
-    private void closePaths() {
-        for (ChartValueSeries chartValueSeries : seriesList) {
-            Optional<ChartPoint> firstValid = chartPoints.stream().filter(chartValueSeries::isChartPointValid)
-                    .findFirst();
-            Optional<ChartPoint> lastValid = chartPoints.stream().filter(chartValueSeries::isChartPointValid)
-                    .reduce((first, second) -> second);
-
-            if (firstValid.isPresent() && lastValid.isPresent()) {
-                Path path = chartValueSeries.getPath();
-
-                int yCorner = topBorder + effectiveHeight;
-
-                path.lineTo(getX(lastValid.get().getTimeOrDistance()), yCorner);
-                path.lineTo(getX(firstValid.get().getTimeOrDistance()), yCorner);
-
-                double value = chartValueSeries.extractDataFromChartPoint(firstValid.get());
-                path.lineTo(getX(firstValid.get().getTimeOrDistance()), getY(chartValueSeries, value));
-            }
-        }
+        // back to lower left corner
+        path.close();
     }
 
     /**
@@ -961,7 +952,7 @@ public class ChartView extends View {
             width = newWidth;
             height = newHeight;
             updateEffectiveDimensions();
-            updatePaths();
+            updateSeries();
         }
     }
 
@@ -993,7 +984,7 @@ public class ChartView extends View {
 
     private double getMarkerXValue(Marker marker) {
         if (chartByDistance) {
-            return marker.getLength().to(metricUnits);
+            return marker.getLength().toKM_Miles(metricUnits);
         } else {
             return marker.getDuration().toMillis();
         }

src/main/java/de/dennisguse/opentracks/content/TrackDataHub.java

@@ -27,9 +27,12 @@ import android.util.Log;
 import androidx.annotation.NonNull;
 import androidx.annotation.VisibleForTesting;
 
+import java.io.IOException;
 import java.util.Collections;
+import java.util.HashSet;
 import java.util.Set;
 
+import de.dennisguse.opentracks.content.data.Altitude;
 import de.dennisguse.opentracks.content.data.Distance;
 import de.dennisguse.opentracks.content.data.Marker;
 import de.dennisguse.opentracks.content.data.MarkerColumns;
@@ -39,7 +42,9 @@ import de.dennisguse.opentracks.content.data.TrackPointsColumns;
 import de.dennisguse.opentracks.content.data.TracksColumns;
 import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
 import de.dennisguse.opentracks.content.provider.TrackPointIterator;
+import de.dennisguse.opentracks.services.TrackRecordingService;
 import de.dennisguse.opentracks.stats.TrackStatisticsUpdater;
+import de.dennisguse.opentracks.util.EGM2008Utils;
 
 /**
  * Track data hub.
@@ -67,26 +72,27 @@ public class TrackDataHub {
     private static final String TAG = TrackDataHub.class.getSimpleName();
 
     private final Context context;
-    private final TrackDataManager trackDataManager;
+    private final Set<TrackDataListener> listeners;
     private final ContentProviderUtils contentProviderUtils;
     private final int targetNumPoints;
 
-    private boolean started;
+    private EGM2008Utils.EGM2008Correction egm2008Correction;
+
+    //TODO Check if this is needed.
     private HandlerThread handlerThread;
     private Handler handler;
 
     private Track.Id selectedTrackId;
-    @Deprecated
-    //TODO Is there a better way to handle this? e.g., passing information rather from Activity than from Activity to TrackDataHub
-    private Track.Id recordingTrackId;
-    @Deprecated
-    //TODO Is there a better way to handle this? e.g., passing information rather from Activity than from Activity to TrackDataHub
-    private boolean recordingTrackPaused;
+
+    private Distance recordingDistanceInterval;
+
+    private TrackRecordingService.RecordingStatus recordingStatus = TrackRecordingService.STATUS_DEFAULT;
 
     // Track points sampling state
     private int numLoadedPoints;
     private TrackPoint.Id firstSeenTrackPointId;
     private TrackPoint.Id lastSeenTrackPointId;
+    private TrackStatisticsUpdater trackStatisticsUpdater;
 
     // Registered listeners
     private ContentObserver tracksTableObserver;
@@ -94,24 +100,23 @@ public class TrackDataHub {
     private ContentObserver trackPointsTableObserver;
 
     public TrackDataHub(Context context) {
-        this(context, new TrackDataManager(), new ContentProviderUtils(context), TARGET_DISPLAYED_TRACKPOINTS);
+        this(context, new ContentProviderUtils(context), TARGET_DISPLAYED_TRACKPOINTS);
     }
 
     @VisibleForTesting
-    private TrackDataHub(Context context, TrackDataManager trackDataManager, ContentProviderUtils contentProviderUtils, int targetNumPoints) {
+    private TrackDataHub(Context context, ContentProviderUtils contentProviderUtils, int targetNumPoints) {
         this.context = context;
-        this.trackDataManager = trackDataManager;
+        this.listeners = new HashSet<>();
         this.contentProviderUtils = contentProviderUtils;
         this.targetNumPoints = targetNumPoints;
         resetSamplingState();
     }
 
     public void start() {
-        if (started) {
+        if (isStarted()) {
             Log.i(TAG, "TrackDataHub already started, ignoring start.");
             return;
         }
-        started = true;
         handlerThread = new HandlerThread(TAG);
         handlerThread.start();
         handler = new Handler(handlerThread.getLooper());
@@ -121,7 +126,7 @@ public class TrackDataHub {
         tracksTableObserver = new ContentObserver(handler) {
             @Override
             public void onChange(boolean selfChange) {
-                notifyTracksTableUpdate(trackDataManager.getListenerTracks());
+                notifyTracksTableUpdate(listeners);
             }
         };
         contentResolver.registerContentObserver(TracksColumns.CONTENT_URI, false, tracksTableObserver);
@@ -129,7 +134,7 @@ public class TrackDataHub {
         markersTableObserver = new ContentObserver(handler) {
             @Override
             public void onChange(boolean selfChange) {
-                notifyMarkersTableUpdate(trackDataManager.getListenerMarkers());
+                notifyMarkersTableUpdate(listeners);
             }
         };
         contentResolver.registerContentObserver(MarkerColumns.CONTENT_URI, false, markersTableObserver);
@@ -137,26 +142,18 @@ public class TrackDataHub {
         trackPointsTableObserver = new ContentObserver(handler) {
             @Override
             public void onChange(boolean selfChange) {
-                notifyTrackPointsTableUpdate(true, trackDataManager.getListenerTrackPoints_SampledIn(), trackDataManager.getListenerTrackPoints_SampledOut());
+                notifyTrackPointsTableUpdate(true, listeners);
             }
         };
         contentResolver.registerContentObserver(TrackPointsColumns.CONTENT_URI_BY_ID, false, trackPointsTableObserver);
-
-        handler.post(() -> {
-            if (started) {
-                loadDataForAll();
-            }
-        });
     }
 
     public void stop() {
-        if (!started) {
+        if (!isStarted()) {
             Log.i(TAG, "TrackDataHub not started, ignoring stop.");
             return;
         }
 
-        started = false;
-
         //Unregister listeners
         ContentResolver contentResolver = context.getContentResolver();
         contentResolver.unregisterContentObserver(tracksTableObserver);
@@ -168,6 +165,7 @@ public class TrackDataHub {
             handlerThread = null;
         }
         handler = null;
+        trackStatisticsUpdater = null;
     }
 
     public void loadTrack(final @NonNull Track.Id trackId) {
@@ -186,10 +184,10 @@ public class TrackDataHub {
      *
      * @param trackDataListener the track data listener
      */
-    public void registerTrackDataListener(final TrackDataListener trackDataListener, final boolean tracksTable, final boolean markersTable, final boolean trackPointsTable_SampleIn, final boolean trackPointsTable_SampleOut) {
+    public void registerTrackDataListener(final TrackDataListener trackDataListener) {
         handler.post(() -> {
-            trackDataManager.registerTrackDataListener(trackDataListener, tracksTable, markersTable, trackPointsTable_SampleIn, trackPointsTable_SampleOut);
-            if (started) {
+            listeners.add(trackDataListener);
+            if (isStarted()) {
                 loadDataForListener(trackDataListener);
             }
         });
@@ -201,21 +199,21 @@ public class TrackDataHub {
      * @param trackDataListener the track data listener
      */
     public void unregisterTrackDataListener(final TrackDataListener trackDataListener) {
-        handler.post(() -> trackDataManager.unregisterTrackDataListener(trackDataListener));
+        handler.post(() -> listeners.remove(trackDataListener));
     }
 
     /**
      * Returns true if the selected track is recording.
      */
     public boolean isSelectedTrackRecording() {
-        return selectedTrackId != null && selectedTrackId.equals(recordingTrackId);
+        return selectedTrackId != null && selectedTrackId.equals(recordingStatus.getTrackId());
     }
 
     /**
      * Returns true if the selected track is paused.
      */
     public boolean isSelectedTrackPaused() {
-        return selectedTrackId != null && selectedTrackId.equals(recordingTrackId) && recordingTrackPaused;
+        return selectedTrackId != null && selectedTrackId.equals(recordingStatus.getTrackId()) && recordingStatus.isPaused();
     }
 
     /**
@@ -223,17 +221,17 @@ public class TrackDataHub {
      */
     private void loadDataForAll() {
         resetSamplingState();
-        if (!trackDataManager.hasListeners()) {
+        if (listeners.isEmpty()) {
             return;
         }
 
-        notifyTracksTableUpdate(trackDataManager.getListenerTracks());
+        notifyTracksTableUpdate(listeners);
 
-        for (TrackDataListener listener : trackDataManager.getListenerTrackPoints_SampledIn()) {
+        for (TrackDataListener listener : listeners) {
             listener.clearTrackPoints();
         }
-        notifyTrackPointsTableUpdate(true, trackDataManager.getListenerTrackPoints_SampledIn(), trackDataManager.getListenerTrackPoints_SampledOut());
-        notifyMarkersTableUpdate(trackDataManager.getListenerMarkers());
+        notifyTrackPointsTableUpdate(true, listeners);
+        notifyMarkersTableUpdate(listeners);
     }
 
     /**
@@ -244,25 +242,19 @@ public class TrackDataHub {
     private void loadDataForListener(TrackDataListener trackDataListener) {
         Set<TrackDataListener> trackDataListeners = Collections.singleton(trackDataListener);
 
-        if (trackDataManager.listensForTracks(trackDataListener)) {
-            notifyTracksTableUpdate(trackDataListeners);
-        }
+        //Track
+        notifyTracksTableUpdate(trackDataListeners);
 
-        boolean hasSampledIn = trackDataManager.listensForTrackPoints_SampledIn(trackDataListener);
-        boolean hasSampledOut = trackDataManager.listensForTrackPoints_SampledOut(trackDataListener);
-        if (hasSampledIn || hasSampledOut) {
-            trackDataListener.clearTrackPoints();
-            boolean isOnlyListener = trackDataManager.getNumberOfListeners() == 1;
-            if (isOnlyListener) {
-                resetSamplingState();
-            }
-            Set<TrackDataListener> sampledOutListeners = hasSampledOut ? trackDataListeners : Collections.emptySet();
-            notifyTrackPointsTableUpdate(isOnlyListener, trackDataListeners, sampledOutListeners);
+        //TrackPoints
+        trackDataListener.clearTrackPoints();
+        boolean isOnlyListener = listeners.size() == 1;
+        if (isOnlyListener) {
+            resetSamplingState();
         }
+        notifyTrackPointsTableUpdate(isOnlyListener, trackDataListeners);
 
-        if (trackDataManager.listensForMarkers(trackDataListener)) {
-            notifyMarkersTableUpdate(trackDataListeners);
-        }
+        //Markers
+        notifyMarkersTableUpdate(trackDataListeners);
     }
 
     /**
@@ -315,11 +307,9 @@ public class TrackDataHub {
      * Notifies track points table update; to be run in the {@link #handler} thread.
      *
      * @param updateSamplingState true to update the sampling state
-     * @param sampledInListeners  the sampled-in listeners
-     * @param sampledOutListeners the sampled-out listeners
      */
-    private void notifyTrackPointsTableUpdate(boolean updateSamplingState, Set<TrackDataListener> sampledInListeners, Set<TrackDataListener> sampledOutListeners) {
-        if (sampledInListeners.isEmpty() && sampledOutListeners.isEmpty()) {
+    private void notifyTrackPointsTableUpdate(boolean updateSamplingState, Set<TrackDataListener> listeners) {
+        if (listeners.isEmpty()) {
             return;
         }
 
@@ -327,7 +317,7 @@ public class TrackDataHub {
             // Reload and resample the track at a lower frequency.
             Log.i(TAG, "Resampling track after " + numLoadedPoints + " points.");
             resetSamplingState();
-            for (TrackDataListener listener : sampledInListeners) {
+            for (TrackDataListener listener : listeners) {
                 listener.clearTrackPoints();
             }
         }
@@ -351,12 +341,17 @@ public class TrackDataHub {
             next = new TrackPoint.Id(localLastSeenTrackPointIdId.getId() + 1); //TODO startTrackPointId + 1 is an assumption assumption; should be derived from the DB.
         }
 
-        TrackStatisticsUpdater trackStatisticsUpdater = new TrackStatisticsUpdater();
-
         TrackPoint trackPoint = null;
         try (TrackPointIterator trackPointIterator = contentProviderUtils.getTrackPointLocationIterator(selectedTrackId, next)) {
 
             while (trackPointIterator.hasNext()) {
+                if (!isStarted()) {
+                    break;
+                }
+
+                //Prevents a NPE if stop() is happening while notifyTrackPointsTableUpdate()
+                TrackStatisticsUpdater currentUpdater = trackStatisticsUpdater;
+
                 trackPoint = trackPointIterator.next();
                 TrackPoint.Id trackPointId = trackPoint.getId();
 
@@ -365,6 +360,8 @@ public class TrackDataHub {
                     break;
                 }
 
+                correctAltitude(trackPoint);
+
                 if (localFirstSeenTrackPointId == null) {
                     localFirstSeenTrackPointId = trackPointId;
                 }
@@ -374,16 +371,16 @@ public class TrackDataHub {
                     samplingFrequency = 1 + (int) (numTotalPoints / targetNumPoints);
                 }
 
-                trackStatisticsUpdater.addTrackPoint(trackPoint, Distance.of(50)); //TODO
+                currentUpdater.addTrackPoint(trackPoint, recordingDistanceInterval);
 
                 // Also include the last point if the selected track is not recording.
                 if ((localNumLoadedTrackPoints % samplingFrequency == 0) || (trackPointId == lastTrackPointId && !isSelectedTrackRecording())) {
-                    for (TrackDataListener trackDataListener : sampledInListeners) {
-                        trackDataListener.onSampledInTrackPoint(trackPoint, trackStatisticsUpdater.getTrackStatistics(), trackStatisticsUpdater.getSmoothedSpeed(), trackStatisticsUpdater.getSmoothedAltitude());
+                    for (TrackDataListener trackDataListener : listeners) {
+                        trackDataListener.onSampledInTrackPoint(trackPoint, currentUpdater.getTrackStatistics(), currentUpdater.getSmoothedSpeed(), currentUpdater.getSmoothedAltitude());
                     }
                 } else {
-                    for (TrackDataListener trackDataListener : sampledOutListeners) {
-                        trackDataListener.onSampledOutTrackPoint(trackPoint, trackStatisticsUpdater.getTrackStatistics());
+                    for (TrackDataListener trackDataListener : listeners) {
+                        trackDataListener.onSampledOutTrackPoint(trackPoint, currentUpdater.getTrackStatistics());
                     }
                 }
 
@@ -401,11 +398,25 @@ public class TrackDataHub {
             lastSeenTrackPointId = localLastSeenTrackPointIdId;
         }
 
-        if (trackPoint != null) {
-            for (TrackDataListener listener : sampledInListeners) {
-                listener.onNewTrackPointsDone(trackPoint, trackStatisticsUpdater.getTrackStatistics());
+        listeners.stream().forEach(TrackDataListener::onNewTrackPointsDone);
+    }
+
+    private void correctAltitude(TrackPoint trackPoint) {
+        if (!trackPoint.hasLocation() || !trackPoint.hasAltitude()) {
+            Log.d(TAG, "No altitude correction necessary.");
+            return;
+        }
+
+        if (egm2008Correction == null || !egm2008Correction.canCorrect(trackPoint.getLocation())) {
+            try {
+                egm2008Correction = EGM2008Utils.createCorrection(context, trackPoint.getLocation());
+            } catch (IOException e) {
+                Log.e(TAG, "Could not load altitude correction for " + trackPoint, e);
+                return;
             }
         }
+
+        trackPoint.setAltitude(Altitude.EGM2008.of(egm2008Correction.correctAltitude(trackPoint.getLocation())));
     }
 
     /**
@@ -415,13 +426,18 @@ public class TrackDataHub {
         numLoadedPoints = 0;
         firstSeenTrackPointId = null;
         lastSeenTrackPointId = null;
+        trackStatisticsUpdater = new TrackStatisticsUpdater();
     }
 
-    public void setRecordingTrackId(Track.Id recordingTrackId) {
-        this.recordingTrackId = recordingTrackId;
+    private boolean isStarted() {
+        return handlerThread != null;
     }
 
-    public void setRecordingTrackPaused(boolean recordingTrackPaused) {
-        this.recordingTrackPaused = recordingTrackPaused;
+    public void setRecordingStatus(TrackRecordingService.RecordingStatus recordingStatus) {
+        this.recordingStatus = recordingStatus;
+    }
+
+    public void setRecordingDistanceInterval(Distance recordingDistanceInterval) {
+        this.recordingDistanceInterval = recordingDistanceInterval;
     }
 }

src/main/java/de/dennisguse/opentracks/content/TrackDataListener.java

@@ -62,26 +62,28 @@ public interface TrackDataListener {
 
     /**
      * Called when finish sending new track points.
-     * This gets called after every batch of calls to {@link #onSampledInTrackPoint(TrackPoint, TrackStatistics, Speed, double)} and {@link #onSampledOutTrackPoint(TrackPoint, TrackStatistics)}.
      */
-    default void onNewTrackPointsDone(@NonNull TrackPoint lastTrackPoint, @NonNull TrackStatistics trackStatistics) {
+    default void onNewTrackPointsDone() {
     }
 
     /**
      * Called to clear previously sent markers.
      */
-    void clearMarkers();
+    default void clearMarkers() {
+    }
 
     /**
      * Called when a new marker is read.
      *
      * @param marker the marker
      */
-    void onNewMarker(Marker marker);
+    default void onNewMarker(@NonNull Marker marker) {
+    }
 
     /**
      * Called when finish sending new markers.
      * This gets called after every batch of calls to {@link #clearMarkers()} and {@link #onNewMarker(Marker)}.
      */
-    void onNewMarkersDone();
+    default void onNewMarkersDone() {
+    }
 }

src/main/java/de/dennisguse/opentracks/content/TrackDataManager.java

@@ -1,95 +0,0 @@
-/*
- * Copyright 2011 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package de.dennisguse.opentracks.content;
-
-import java.util.HashSet;
-import java.util.Set;
-
-/**
- * Manages register/unregister {@link TrackDataListener} and keeping the state for each registered listener.
- *
- * @author Rodrigo Damazio
- */
-class TrackDataManager {
-
-    private static final String TAG = TrackDataManager.class.getSimpleName();
-
-    private final Set<TrackDataListener> dataListenerTracks = new HashSet<>();
-    private final Set<TrackDataListener> dataListenerMarkers = new HashSet<>();
-    private final Set<TrackDataListener> dataListenerTrackPoints_SampledIn = new HashSet<>();
-    private final Set<TrackDataListener> dataListenerTrackPoints_SampledOut = new HashSet<>();
-
-    void registerTrackDataListener(final TrackDataListener trackDataListener, boolean tracksTable, boolean markersTable, boolean trackPointsTable_SampleIn, boolean trackPointsTable_SampleOut) {
-        if (tracksTable) dataListenerTracks.add(trackDataListener);
-        if (markersTable) dataListenerMarkers.add(trackDataListener);
-        if (trackPointsTable_SampleIn) dataListenerTrackPoints_SampledIn.add(trackDataListener);
-        if (trackPointsTable_SampleOut) dataListenerTrackPoints_SampledOut.add(trackDataListener);
-    }
-
-    void unregisterTrackDataListener(TrackDataListener trackDataListener) {
-        dataListenerTracks.remove(trackDataListener);
-        dataListenerMarkers.remove(trackDataListener);
-        dataListenerTrackPoints_SampledIn.remove(trackDataListener);
-        dataListenerTrackPoints_SampledOut.remove(trackDataListener);
-    }
-
-    boolean hasListeners() {
-        return dataListenerTracks.size() + dataListenerMarkers.size() + dataListenerTrackPoints_SampledIn.size() + dataListenerTrackPoints_SampledOut.size() > 0;
-    }
-
-    int getNumberOfListeners() {
-        Set<TrackDataListener> listener = new HashSet<>();
-        listener.addAll(dataListenerTracks);
-        listener.addAll(dataListenerMarkers);
-        listener.addAll(dataListenerTrackPoints_SampledIn);
-        listener.addAll(dataListenerTrackPoints_SampledOut);
-
-        return listener.size();
-    }
-
-    boolean listensForTracks(TrackDataListener listener) {
-        return dataListenerTracks.contains(listener);
-    }
-
-    boolean listensForMarkers(TrackDataListener listener) {
-        return dataListenerMarkers.contains(listener);
-    }
-
-    boolean listensForTrackPoints_SampledIn(TrackDataListener listener) {
-        return dataListenerTrackPoints_SampledIn.contains(listener);
-    }
-
-    boolean listensForTrackPoints_SampledOut(TrackDataListener listener) {
-        return dataListenerTrackPoints_SampledOut.contains(listener);
-    }
-
-    Set<TrackDataListener> getListenerTracks() {
-        return dataListenerTracks;
-    }
-
-    Set<TrackDataListener> getListenerMarkers() {
-        return dataListenerMarkers;
-    }
-
-    Set<TrackDataListener> getListenerTrackPoints_SampledIn() {
-        return dataListenerTrackPoints_SampledIn;
-    }
-
-    Set<TrackDataListener> getListenerTrackPoints_SampledOut() {
-        return dataListenerTrackPoints_SampledOut;
-    }
-}

src/main/java/de/dennisguse/opentracks/content/data/Altitude.java

@@ -0,0 +1,39 @@
+package de.dennisguse.opentracks.content.data;
+
+public abstract class Altitude {
+
+    private final double altitude_m;
+
+    private Altitude(double altitude_m) {
+        this.altitude_m = altitude_m;
+    }
+
+    public double toM() {
+        return altitude_m;
+    }
+
+    public static class WGS84 extends Altitude {
+
+        private WGS84(double altitude_m) {
+            super(altitude_m);
+        }
+
+
+        public static Altitude of(double altitude_m) {
+            return new WGS84(altitude_m);
+        }
+    }
+
+    public static class EGM2008 extends Altitude {
+
+        private EGM2008(double altitude_m) {
+            super(altitude_m);
+        }
+
+
+        public static Altitude of(double altitude_m) {
+            return new EGM2008(altitude_m);
+        }
+    }
+}
+

src/main/java/de/dennisguse/opentracks/content/data/Distance.java

@@ -24,6 +24,10 @@ public class Distance {
         return of(distance_km * UnitConversions.KM_TO_M);
     }
 
+    public static Distance ofMM(double distance_mm) {
+        return of(distance_mm * UnitConversions.MM_TO_M);
+    }
+
     public static Distance one(boolean metricUnit) {
         if (metricUnit) {
             return Distance.ofKilometer(1);
@@ -98,24 +102,12 @@ public class Distance {
         return toKM() * UnitConversions.KM_TO_MI;
     }
 
-    public double to(boolean metricUnit) {
-        return to(metricUnit ? Unit.KM : Unit.MILES);
+    public double toKM_Miles(boolean metricUnit) {
+        return metricUnit ? toKM() : toMI();
     }
 
-    public double to(Unit unit) {
-        switch (unit) {
-            case KM:
-                return toKM();
-            case MILES:
-                return toMI();
-            default:
-                throw new RuntimeException("Not implemented");
-        }
-    }
-
-    public enum Unit {
-        KM,
-        MILES
+    public double toM_FT(boolean metricUnit) {
+        return metricUnit ? toM() : toFT();
     }
 
     @Override

src/main/java/de/dennisguse/opentracks/content/data/Marker.java

@@ -44,13 +44,13 @@ public final class Marker {
     private String description = "";
     private String category = "";
     private String icon = "";
-    private final Track.Id trackId;
+    private Track.Id trackId;
 
     private final Instant time;
     private Double latitude;
     private Double longitude;
     private Float accuracy;
-    private Double altitude_m;
+    private Altitude altitude;
     private Float bearing;
 
     //TODO It is the distance from the track starting point; rename to something more meaningful
@@ -74,16 +74,13 @@ public final class Marker {
         if (!trackPoint.hasLocation())
             throw new RuntimeException("Marker requires a trackpoint with a location.");
 
-        this.latitude = trackPoint.getLatitude();
-        this.longitude = trackPoint.getLongitude();
-        if (trackPoint.hasAccuracy()) this.accuracy = trackPoint.getAccuracy();
-        if (trackPoint.hasAltitude()) this.altitude_m = trackPoint.getAltitude();
-        if (trackPoint.hasBearing()) this.bearing = trackPoint.getBearing();
+        setTrackPoint(trackPoint);
 
         this.length = Distance.of(0); //TODO Not cool!
         this.duration = Duration.ofMillis(0); //TODO Not cool!
     }
 
+    @Deprecated
     public Marker(String name, String description, String category, String icon, @NonNull Track.Id trackId, @NonNull TrackStatistics statistics, @NonNull TrackPoint trackPoint, String photoUrl) {
         this(trackId, trackPoint);
         this.name = name;
@@ -95,6 +92,15 @@ public final class Marker {
         this.photoUrl = photoUrl;
     }
 
+    //TODO Is somehow part of the initialization process. Can we at least limit visibility?
+    public void setTrackPoint(TrackPoint trackPoint) {
+        this.latitude = trackPoint.getLatitude();
+        this.longitude = trackPoint.getLongitude();
+        if (trackPoint.hasAccuracy()) this.accuracy = trackPoint.getAccuracy();
+        if (trackPoint.hasAltitude()) this.altitude = trackPoint.getAltitude();
+        if (trackPoint.hasBearing()) this.bearing = trackPoint.getBearing();
+    }
+
     /**
      * May be null if the it was not loaded from the database.
      */
@@ -143,16 +149,19 @@ public final class Marker {
         this.icon = icon;
     }
 
-    @NonNull
     public Track.Id getTrackId() {
         return trackId;
     }
 
+    @Deprecated
+    public void setTrackId(@NonNull Track.Id trackId) {
+        this.trackId = trackId;
+    }
+
     public boolean hasLocation() {
         return latitude != null || longitude != null;
     }
 
-    @Nullable
     public Location getLocation() {
         Location location = new Location("");
         location.setTime(time.toEpochMilli());
@@ -167,7 +176,7 @@ public final class Marker {
             location.setAccuracy(accuracy);
         }
         if (hasAltitude()) {
-            location.setAltitude(altitude_m);
+            location.setAltitude(altitude.toM());
         }
 
         return location;
@@ -202,15 +211,15 @@ public final class Marker {
     }
 
     public boolean hasAltitude() {
-        return altitude_m != null;
+        return altitude != null;
     }
 
-    public Double getAltitude() {
-        return altitude_m;
+    public Altitude getAltitude() {
+        return altitude;
     }
 
-    public void setAltitude(double altitude_m) {
-        this.altitude_m = altitude_m;
+    public void setAltitude(Altitude altitude) {
+        this.altitude = altitude;
     }
 
     public boolean hasBearing() {

src/main/java/de/dennisguse/opentracks/content/data/Track.java

@@ -33,6 +33,7 @@ import de.dennisguse.opentracks.stats.TrackStatistics;
  * @author Leif Hendrik Wilden
  * @author Rodrigo Damazio
  */
+//TODO Do not default initialize attributes; might be confusing for debugging
 public class Track {
 
     private Track.Id id;
@@ -46,9 +47,6 @@ public class Track {
 
     private TrackStatistics trackStatistics = new TrackStatistics();
 
-    public Track() {
-    }
-
     /**
      * May be null if the track was not loaded from the database.
      */

src/main/java/de/dennisguse/opentracks/content/data/TrackPoint.java

@@ -20,6 +20,7 @@ import android.os.Parcel;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.annotation.VisibleForTesting;
 
 import java.time.Duration;
 import java.time.Instant;
@@ -51,10 +52,10 @@ public class TrackPoint {
     private Double latitude;
     private Double longitude;
     private Float accuracy;
-    private Double altitude_m;
+    private Altitude altitude;
     private Speed speed;
     private Float bearing;
-    private Distance sensorDistance_m;
+    private Distance sensorDistance;
 
     public enum Type {
         SEGMENT_START_MANUAL(-2), //Start of a segment due to user interaction (start, resume)
@@ -98,15 +99,21 @@ public class TrackPoint {
     }
 
     public TrackPoint(@NonNull Location location) {
-        this(Type.TRACKPOINT);
+        this(Type.TRACKPOINT, location, Instant.now());
+    }
+
+    public TrackPoint(@NonNull Type type, @NonNull Location location, @NonNull Instant time) {
+        this(type);
 
         this.latitude = location.getLatitude();
         this.longitude = location.getLongitude();
-        this.altitude_m = location.getAltitude();
+        this.altitude = Altitude.WGS84.of(location.getAltitude());
         this.speed = Speed.of(location.getSpeed());
         this.accuracy = location.getAccuracy();
 
-        setTime(Instant.now());
+        //TODO Should we copy the bearing?
+
+        setTime(time);
     }
 
     public TrackPoint(@NonNull Type type, Instant time) {
@@ -114,11 +121,11 @@ public class TrackPoint {
         this.time = time;
     }
 
-    public TrackPoint(double latitude, double longitude, Double altitude, Instant time) {
+    public TrackPoint(double latitude, double longitude, Altitude altitude, Instant time) {
         this(Type.TRACKPOINT);
         this.latitude = latitude;
         this.longitude = longitude;
-        this.altitude_m = altitude;
+        this.altitude = altitude;
         this.time = time;
     }
 
@@ -197,6 +204,7 @@ public class TrackPoint {
         this.longitude = longitude;
     }
 
+    //TODO Better return null, if no location is present aka latitude == null etc.
     @NonNull
     public Location getLocation() {
         Location location = new Location("");
@@ -212,7 +220,7 @@ public class TrackPoint {
             location.setAccuracy(accuracy);
         }
         if (hasAltitude()) {
-            location.setAltitude(altitude_m);
+            location.setAltitude(altitude.toM());
         }
 
         return location;
@@ -257,15 +265,20 @@ public class TrackPoint {
 
 
     public boolean hasAltitude() {
-        return altitude_m != null;
+        return altitude != null;
     }
 
-    public double getAltitude() {
-        return altitude_m;
+    public Altitude getAltitude() {
+        return altitude;
     }
 
-    public void setAltitude(double altitude) {
-        this.altitude_m = altitude;
+    @VisibleForTesting
+    public void setAltitude(double altitude_m) {
+        this.altitude = Altitude.WGS84.of(altitude_m);
+    }
+
+    public void setAltitude(Altitude altitude) {
+        this.altitude = altitude;
     }
 
     public boolean hasSpeed() {
@@ -308,10 +321,14 @@ public class TrackPoint {
         this.accuracy = horizontalAccuracy;
     }
 
+    @Nullable
     public Distance distanceToPrevious(@NonNull TrackPoint previous) {
         if (hasSensorDistance()) {
             return getSensorDistance();
         }
+        if (!(hasLocation() && previous.hasLocation())) {
+            return null;
+        }
 
         return Distance.of(getLocation().distanceTo(previous.getLocation()));
     }
@@ -320,25 +337,27 @@ public class TrackPoint {
         return hasAccuracy() && accuracy < poorAccuracy;
     }
 
+    //TODO Bearing requires a location; what do we do if we don't have any?
     public float bearingTo(@NonNull TrackPoint dest) {
         return getLocation().bearingTo(dest.getLocation());
     }
 
+    //TODO Bearing requires a location; what do we do if we don't have any?
     public float bearingTo(@NonNull Location dest) {
         return getLocation().bearingTo(dest);
     }
 
     // Sensor data
     public boolean hasSensorDistance() {
-        return sensorDistance_m != null;
+        return sensorDistance != null;
     }
 
     public Distance getSensorDistance() {
-        return sensorDistance_m;
+        return sensorDistance;
     }
 
     public void setSensorDistance(Distance distance_m) {
-        this.sensorDistance_m = distance_m;
+        this.sensorDistance = distance_m;
     }
 
     public boolean hasSensorData() {

src/main/java/de/dennisguse/opentracks/content/provider/ContentProviderUtils.java

@@ -39,6 +39,7 @@ import java.util.List;
 import java.util.UUID;
 
 import de.dennisguse.opentracks.BuildConfig;
+import de.dennisguse.opentracks.content.data.Altitude;
 import de.dennisguse.opentracks.content.data.Distance;
 import de.dennisguse.opentracks.content.data.Marker;
 import de.dennisguse.opentracks.content.data.MarkerColumns;
@@ -60,7 +61,6 @@ import de.dennisguse.opentracks.util.UUIDUtils;
 public class ContentProviderUtils {
 
     private static final String TAG = ContentProviderUtils.class.getSimpleName();
-    private static final int MAX_LATITUDE = 90000000;
 
     // The authority (the first part of the URI) for the app's content provider.
     @VisibleForTesting
@@ -160,8 +160,10 @@ public class ContentProviderUtils {
 
     @VisibleForTesting
     public void deleteAllTracks(Context context) {
+        //TODO Both calls should not be necessary
         contentResolver.delete(TrackPointsColumns.CONTENT_URI_BY_ID, null, null);
         contentResolver.delete(MarkerColumns.CONTENT_URI, null, null);
+
         // Delete tracks last since it triggers a database vaccum call
         contentResolver.delete(TracksColumns.CONTENT_URI, null, null);
 
@@ -189,6 +191,7 @@ public class ContentProviderUtils {
     }
 
     //TODO Only use for tests; also move to tests.
+    @VisibleForTesting
     public List<Track> getTracks() {
         ArrayList<Track> tracks = new ArrayList<>();
         try (Cursor cursor = getTrackCursor(null, null, TracksColumns._ID)) {
@@ -202,13 +205,7 @@ public class ContentProviderUtils {
         return tracks;
     }
 
-    /**
-     * @param trackId the track id.
-     */
-    public Track getTrack(Track.Id trackId) {
-        if (trackId == null) {
-            return null;
-        }
+    public Track getTrack(@NonNull Track.Id trackId) {
         try (Cursor cursor = getTrackCursor(TracksColumns._ID + "=?", new String[]{Long.toString(trackId.getId())}, null)) {
             if (cursor != null && cursor.moveToNext()) {
                 return createTrack(cursor);
@@ -217,9 +214,6 @@ public class ContentProviderUtils {
         return null;
     }
 
-    /**
-     * @param trackUUID the track uuid.
-     */
     public Track getTrack(@NonNull UUID trackUUID) {
         String trackUUIDsearch = UUIDUtils.toHex(trackUUID);
         try (Cursor cursor = getTrackCursor("hex(" + TracksColumns.UUID + ")=?", new String[]{trackUUIDsearch}, null)) {
@@ -249,6 +243,7 @@ public class ContentProviderUtils {
      * @param track the track
      * @return the content provider URI of the inserted track.
      */
+    ///TODO Return Track.Id
     public Uri insertTrack(Track track) {
         return contentResolver.insert(TracksColumns.CONTENT_URI, createContentValues(track));
     }
@@ -320,7 +315,7 @@ public class ContentProviderUtils {
             marker.setLatitude(((double) cursor.getInt(latitudeIndex)) / 1E6);
         }
         if (!cursor.isNull(altitudeIndex)) {
-            marker.setAltitude(cursor.getFloat(altitudeIndex));
+            marker.setAltitude(Altitude.WGS84.of(cursor.getFloat(altitudeIndex)));
         }
         if (!cursor.isNull(accuracyIndex)) {
             marker.setAccuracy(cursor.getFloat(accuracyIndex));
@@ -489,7 +484,7 @@ public class ContentProviderUtils {
         values.put(MarkerColumns.LATITUDE, (int) (marker.getLatitude() * 1E6));
         values.put(MarkerColumns.TIME, marker.getTime().toEpochMilli());
         if (marker.hasAltitude()) {
-            values.put(MarkerColumns.ALTITUDE, marker.getAltitude());
+            values.put(MarkerColumns.ALTITUDE, marker.getAltitude().toM());
         }
         if (marker.hasAccuracy()) {
             values.put(MarkerColumns.ACCURACY, marker.getAccuracy());
@@ -539,7 +534,7 @@ public class ContentProviderUtils {
             trackPoint.setTime(Instant.ofEpochMilli(cursor.getLong(indexes.timeIndex)));
         }
         if (!cursor.isNull(indexes.altitudeIndex)) {
-            trackPoint.setAltitude(cursor.getFloat(indexes.altitudeIndex));
+            trackPoint.setAltitude(Altitude.WGS84.of(cursor.getFloat(indexes.altitudeIndex)));
         }
         if (!cursor.isNull(indexes.accuracyIndex)) {
             trackPoint.setAccuracy(cursor.getFloat(indexes.accuracyIndex));
@@ -575,6 +570,7 @@ public class ContentProviderUtils {
     }
 
     //TODO Only used for file import; might be better to replace it.
+    //TODO Rename to bulkInsert
     public int bulkInsertTrackPoint(List<TrackPoint> trackPoints, Track.Id trackId) {
         ContentValues[] values = new ContentValues[trackPoints.size()];
         for (int i = 0; i < trackPoints.size(); i++) {
@@ -583,6 +579,15 @@ public class ContentProviderUtils {
         return contentResolver.bulkInsert(TrackPointsColumns.CONTENT_URI_BY_ID, values);
     }
 
+    //TODO Set trackId in this method.
+    public int bulkInsertMarkers(List<Marker> markers, Track.Id trackId) {
+        ContentValues[] values = new ContentValues[markers.size()];
+        for (int i = 0; i < markers.size(); i++) {
+            values[i] = createContentValues(markers.get(i));
+        }
+        return contentResolver.bulkInsert(MarkerColumns.CONTENT_URI, values);
+    }
+
     /**
      * Gets the last location id for a track.
      * Returns -1L if it doesn't exist.
@@ -608,6 +613,7 @@ public class ContentProviderUtils {
      * @param location the location
      * @return trackPoint id if the location is in the track. -1L otherwise.
      */
+    @Deprecated
     public TrackPoint.Id getTrackPointId(Track.Id trackId, Location location) {
         String selection = TrackPointsColumns._ID + "=(SELECT MAX(" + TrackPointsColumns._ID + ") FROM " + TrackPointsColumns.TABLE_NAME + " WHERE " + TrackPointsColumns.TRACKID + "=? AND " + TrackPointsColumns.TIME + "=?)";
         String[] selectionArgs = new String[]{Long.toString(trackId.getId()), Long.toString(location.getTime())};
@@ -690,7 +696,7 @@ public class ContentProviderUtils {
         }
         values.put(TrackPointsColumns.TIME, trackPoint.getTime().toEpochMilli());
         if (trackPoint.hasAltitude()) {
-            values.put(TrackPointsColumns.ALTITUDE, trackPoint.getAltitude());
+            values.put(TrackPointsColumns.ALTITUDE, trackPoint.getAltitude().toM());
         }
         if (trackPoint.hasAccuracy()) {
             values.put(TrackPointsColumns.ACCURACY, trackPoint.getAccuracy());
@@ -739,6 +745,7 @@ public class ContentProviderUtils {
         return new TrackPointIterator(this, trackId, startTrackPointId);
     }
 
+    @Deprecated
     private TrackPoint findTrackPointBy(String selection, String[] selectionArgs) {
         try (Cursor cursor = getTrackPointCursor(null, selection, selectionArgs, TrackPointsColumns._ID)) {
             if (cursor != null && cursor.moveToNext()) {

src/main/java/de/dennisguse/opentracks/content/sensor/SensorDataCycling.java

@@ -123,7 +123,7 @@ public final class SensorDataCycling {
             return wheelRevolutionsTime;
         }
 
-        public void compute(DistanceSpeed previous, int wheel_circumference_mm) {
+        public void compute(DistanceSpeed previous, Distance wheelCircumference) {
             if (hasData() && previous != null && previous.hasData()) {
                 float timeDiff_ms = UintUtils.diff(wheelRevolutionsTime, previous.wheelRevolutionsTime, UintUtils.UINT16_MAX) / 1024f * UnitConversions.S_TO_MS;
                 Duration timeDiff = Duration.ofMillis((long) timeDiff_ms);
@@ -134,7 +134,7 @@ public final class SensorDataCycling {
                     long wheelDiff = UintUtils.diff(wheelRevolutionsCount, previous.wheelRevolutionsCount, UintUtils.UINT16_MAX);
                     wheelDiff = Math.abs(wheelDiff); //HACK for Garmin Speed 2 as some of those seem to count backwards
 
-                    Distance distance = Distance.of(wheelDiff * wheel_circumference_mm * UnitConversions.MM_TO_M);
+                    Distance distance = wheelCircumference.multipliedBy(wheelDiff);
                     Distance distanceOverall = distance;
                     if (previous.hasValue()) {
                         distanceOverall = distance.plus(previous.getValue().distanceOverall);

src/main/java/de/dennisguse/opentracks/fragments/ChartFragment.java

@@ -16,28 +16,25 @@
 
 package de.dennisguse.opentracks.fragments;
 
+import android.app.Activity;
 import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.view.ViewGroup.LayoutParams;
 
 import androidx.annotation.NonNull;
-import androidx.annotation.VisibleForTesting;
 import androidx.fragment.app.Fragment;
-import androidx.fragment.app.FragmentActivity;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.TrackActivityDataHubInterface;
 import de.dennisguse.opentracks.chart.ChartPoint;
-import de.dennisguse.opentracks.chart.ChartView;
 import de.dennisguse.opentracks.content.TrackDataHub;
 import de.dennisguse.opentracks.content.TrackDataListener;
-import de.dennisguse.opentracks.content.data.Distance;
 import de.dennisguse.opentracks.content.data.Marker;
 import de.dennisguse.opentracks.content.data.Speed;
 import de.dennisguse.opentracks.content.data.Track;
@@ -68,7 +65,6 @@ public class ChartFragment extends Fragment implements TrackDataListener {
     }
 
     private SharedPreferences sharedPreferences;
-    private Distance recordingDistanceInterval;
 
     private TrackDataHub trackDataHub;
 
@@ -80,40 +76,34 @@ public class ChartFragment extends Fragment implements TrackDataListener {
     private boolean chartByDistance;
 
     private ChartBinding viewBinding;
-    // UI elements
-    private ChartView chartView;
 
     private final SharedPreferences.OnSharedPreferenceChangeListener sharedPreferenceChangeListener = new SharedPreferences.OnSharedPreferenceChangeListener() {
         @Override
         public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
             if (PreferencesUtils.isKey(getContext(), R.string.stats_units_key, key)) {
                 boolean metricUnits = PreferencesUtils.isMetricUnits(sharedPreferences, getContext());
-                if (metricUnits != chartView.getMetricUnits()) {
-                    chartView.setMetricUnits(metricUnits);
+                if (metricUnits != viewBinding.chartView.getMetricUnits()) {
+                    viewBinding.chartView.setMetricUnits(metricUnits);
                     runOnUiThread(() -> {
                         if (isResumed()) {
-                            chartView.requestLayout();
+                            viewBinding.chartView.requestLayout();
                         }
                     });
                 }
             }
             if (PreferencesUtils.isKey(getContext(), R.string.stats_rate_key, key)) {
                 boolean reportSpeed = PreferencesUtils.isReportSpeed(sharedPreferences, getContext(), category);
-                if (reportSpeed != chartView.getReportSpeed()) {
-                    chartView.setReportSpeed(reportSpeed);
-                    chartView.applyReportSpeed();
+                if (reportSpeed != viewBinding.chartView.getReportSpeed()) {
+                    viewBinding.chartView.setReportSpeed(reportSpeed);
+                    viewBinding.chartView.applyReportSpeed();
 
                     runOnUiThread(() -> {
                         if (isResumed()) {
-                            chartView.requestLayout();
+                            viewBinding.chartView.requestLayout();
                         }
                     });
                 }
             }
-
-            if (PreferencesUtils.isKey(getContext(), R.string.recording_distance_interval_key, key)) {
-                recordingDistanceInterval = PreferencesUtils.getRecordingDistanceInterval(sharedPreferences, getContext());
-            }
         }
     };
 
@@ -123,12 +113,12 @@ public class ChartFragment extends Fragment implements TrackDataListener {
     private final Runnable updateChart = new Runnable() {
         @Override
         public void run() {
-            if (!isResumed() || trackDataHub == null) {
+            if (!isResumed()) {
                 return;
             }
 
-            chartView.setShowPointer(isSelectedTrackRecording());
-            chartView.invalidate();
+            viewBinding.chartView.setShowPointer(isSelectedTrackRecording());
+            viewBinding.chartView.invalidate();
         }
     };
 
@@ -138,27 +128,15 @@ public class ChartFragment extends Fragment implements TrackDataListener {
         super.onCreate(savedInstanceState);
 
         chartByDistance = getArguments().getBoolean(KEY_CHART_VIEW_BY_DISTANCE_KEY, true);
-
-        recordingDistanceInterval = PreferencesUtils.getRecordingDistanceIntervalDefault(getContext());
-
-        // Create a chartView here to store data thus won't need to reload all the data on every onStart or onResume.
-        chartView = new ChartView(getContext(), chartByDistance);
     }
 
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         viewBinding = ChartBinding.inflate(inflater, container, false);
+        viewBinding.chartView.setChartByDistance(chartByDistance);
         return viewBinding.getRoot();
     }
 
-    @Override
-    public void onStart() {
-        super.onStart();
-
-        LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
-        viewBinding.chartViewLayout.addView(chartView, layoutParams);
-    }
-
     @Override
     public void onResume() {
         super.onResume();
@@ -178,13 +156,6 @@ public class ChartFragment extends Fragment implements TrackDataListener {
         sharedPreferences.unregisterOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
     }
 
-    @Override
-    public void onStop() {
-        super.onStop();
-
-        viewBinding.chartViewLayout.removeView(chartView);
-    }
-
     @Override
     public void onDestroyView() {
         super.onDestroyView();
@@ -200,16 +171,16 @@ public class ChartFragment extends Fragment implements TrackDataListener {
     @Override
     public void onTrackUpdated(Track track) {
         if (isResumed()) {
-            if (track == null || track.getTrackStatistics() == null) {
+            if (track == null) {
                 category = "";
                 return;
             }
 
             category = track.getCategory();
             boolean reportSpeed = PreferencesUtils.isReportSpeed(PreferencesUtils.getSharedPreferences(getContext()), getContext(), category);
-            if (reportSpeed != chartView.getReportSpeed()) {
-                chartView.setReportSpeed(reportSpeed);
-                chartView.applyReportSpeed();
+            if (reportSpeed != viewBinding.chartView.getReportSpeed()) {
+                viewBinding.chartView.setReportSpeed(reportSpeed);
+                viewBinding.chartView.applyReportSpeed();
             }
         }
     }
@@ -218,10 +189,10 @@ public class ChartFragment extends Fragment implements TrackDataListener {
     public void clearTrackPoints() {
         if (isResumed()) {
             pendingPoints.clear();
-            chartView.reset();
+            viewBinding.chartView.reset();
             runOnUiThread(() -> {
                 if (isResumed()) {
-                    chartView.resetScroll();
+                    viewBinding.chartView.resetScroll();
                 }
             });
         }
@@ -229,15 +200,16 @@ public class ChartFragment extends Fragment implements TrackDataListener {
 
     public void onSampledInTrackPoint(@NonNull TrackPoint trackPoint, @NonNull TrackStatistics trackStatistics, Speed smoothedSpeed, double smoothedAltitude_m) {
         if (isResumed()) {
-            ChartPoint point = new ChartPoint(trackStatistics, trackPoint, smoothedSpeed, smoothedAltitude_m, chartByDistance, chartView.getMetricUnits());
+            ChartPoint point = new ChartPoint(trackStatistics, trackPoint, smoothedSpeed, smoothedAltitude_m, chartByDistance, viewBinding.chartView.getMetricUnits());
             pendingPoints.add(point);
         }
     }
 
     @Override
-    public void onNewTrackPointsDone(@NonNull TrackPoint unused, @NonNull TrackStatistics alsoUnused) {
+    public void onNewTrackPointsDone() {
         if (isResumed()) {
-            chartView.addChartPoints(pendingPoints);
+            //Avoid ConcurrentModificationException exception
+            viewBinding.chartView.addChartPoints(Collections.unmodifiableList(pendingPoints));
             pendingPoints.clear();
             runOnUiThread(updateChart);
         }
@@ -246,14 +218,14 @@ public class ChartFragment extends Fragment implements TrackDataListener {
     @Override
     public void clearMarkers() {
         if (isResumed()) {
-            chartView.clearMarker();
+            viewBinding.chartView.clearMarker();
         }
     }
 
     @Override
-    public void onNewMarker(Marker marker) {
-        if (isResumed() && marker != null) {
-            chartView.addMarker(marker);
+    public void onNewMarker(@NonNull Marker marker) {
+        if (isResumed()) {
+            viewBinding.chartView.addMarker(marker);
         }
     }
 
@@ -268,9 +240,9 @@ public class ChartFragment extends Fragment implements TrackDataListener {
      * Checks the chart settings.
      */
     private void checkChartSettings() {
-        boolean needUpdate = chartView.applyReportSpeed();
+        boolean needUpdate = viewBinding.chartView.applyReportSpeed();
         if (needUpdate) {
-            chartView.postInvalidate();
+            viewBinding.chartView.postInvalidate();
         }
     }
 
@@ -280,7 +252,7 @@ public class ChartFragment extends Fragment implements TrackDataListener {
      */
     private synchronized void resumeTrackDataHub() {
         trackDataHub = ((TrackActivityDataHubInterface) getActivity()).getTrackDataHub();
-        trackDataHub.registerTrackDataListener(this, true, true, true, true);
+        trackDataHub.registerTrackDataListener(this);
     }
 
     /**
@@ -308,34 +280,9 @@ public class ChartFragment extends Fragment implements TrackDataListener {
      * @param runnable the runnable
      */
     private void runOnUiThread(Runnable runnable) {
-        FragmentActivity fragmentActivity = getActivity();
+        Activity fragmentActivity = getActivity();
         if (fragmentActivity != null) {
             fragmentActivity.runOnUiThread(runnable);
         }
     }
-
-    @VisibleForTesting
-    void setChartView(ChartView view) {
-        chartView = view;
-    }
-
-    @VisibleForTesting
-    void setMetricUnits(boolean value) {
-        chartView.setMetricUnits(value);
-    }
-
-    @VisibleForTesting
-    void setReportSpeed(boolean value) {
-        chartView.setReportSpeed(value);
-    }
-
-    @VisibleForTesting
-    void setChartByDistance(boolean value) {
-        chartByDistance = value;
-    }
-
-    @VisibleForTesting
-    void setRecordingDistanceInterval(Distance value) {
-        recordingDistanceInterval = value;
-    }
 }

src/main/java/de/dennisguse/opentracks/fragments/IntervalsFragment.java

@@ -24,7 +24,6 @@ import de.dennisguse.opentracks.TrackActivityDataHubInterface;
 import de.dennisguse.opentracks.adapters.IntervalStatisticsAdapter;
 import de.dennisguse.opentracks.content.TrackDataHub;
 import de.dennisguse.opentracks.content.TrackDataListener;
-import de.dennisguse.opentracks.content.data.Marker;
 import de.dennisguse.opentracks.content.data.Speed;
 import de.dennisguse.opentracks.content.data.Track;
 import de.dennisguse.opentracks.content.data.TrackPoint;
@@ -195,7 +194,7 @@ public class IntervalsFragment extends Fragment implements TrackDataListener {
      */
     private synchronized void resumeTrackDataHub() {
         trackDataHub = ((TrackActivityDataHubInterface) getActivity()).getTrackDataHub();
-        trackDataHub.registerTrackDataListener(this, true, false, true, true);
+        trackDataHub.registerTrackDataListener(this);
     }
 
     /**
@@ -245,27 +244,12 @@ public class IntervalsFragment extends Fragment implements TrackDataListener {
     }
 
     @Override
-    public void onNewTrackPointsDone(@NonNull TrackPoint unused, @NonNull TrackStatistics alsoUnused) {
+    public void onNewTrackPointsDone() {
         if (isResumed()) {
             runOnUiThread(viewModel::onNewTrackPoints);
         }
     }
 
-    @Override
-    public void clearMarkers() {
-        // We don't care.
-    }
-
-    @Override
-    public void onNewMarker(Marker marker) {
-        // We don't care.
-    }
-
-    @Override
-    public void onNewMarkersDone() {
-        // We don't care.
-    }
-
     /**
      * Runs a runnable on the UI thread.
      *

src/main/java/de/dennisguse/opentracks/fragments/StatisticsRecordingFragment.java

@@ -2,7 +2,6 @@ package de.dennisguse.opentracks.fragments;
 
 import android.content.SharedPreferences;
 import android.os.Bundle;
-import android.os.Handler;
 import android.util.Log;
 import android.util.Pair;
 import android.view.LayoutInflater;
@@ -22,10 +21,6 @@ import java.util.List;
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.TrackRecordingActivity;
 import de.dennisguse.opentracks.adapters.SensorsAdapter;
-import de.dennisguse.opentracks.content.TrackDataHub;
-import de.dennisguse.opentracks.content.TrackDataListener;
-import de.dennisguse.opentracks.content.data.Distance;
-import de.dennisguse.opentracks.content.data.Marker;
 import de.dennisguse.opentracks.content.data.Speed;
 import de.dennisguse.opentracks.content.data.Track;
 import de.dennisguse.opentracks.content.data.TrackPoint;
@@ -34,7 +29,6 @@ import de.dennisguse.opentracks.content.sensor.SensorDataSet;
 import de.dennisguse.opentracks.databinding.StatisticsRecordingBinding;
 import de.dennisguse.opentracks.services.TrackRecordingService;
 import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
-import de.dennisguse.opentracks.stats.TrackStatistics;
 import de.dennisguse.opentracks.util.PreferencesUtils;
 import de.dennisguse.opentracks.util.StringUtils;
 import de.dennisguse.opentracks.util.TrackIconUtils;
@@ -46,25 +40,17 @@ import de.dennisguse.opentracks.viewmodels.SensorDataModel;
  * @author Sandor Dornbush
  * @author Rodrigo Damazio
  */
-public class StatisticsRecordingFragment extends Fragment implements TrackDataListener {
+public class StatisticsRecordingFragment extends Fragment {
 
     private static final String TAG = StatisticsRecordingFragment.class.getSimpleName();
 
-    private static final Duration UI_UPDATE_INTERVAL = Duration.ofSeconds(1);
-
     public static Fragment newInstance() {
         return new StatisticsRecordingFragment();
     }
 
-    private TrackDataHub trackDataHub;
-
-    private Handler handlerUpdateUI;
-
-    private TrackRecordingServiceConnection trackRecordingServiceConnection = new TrackRecordingServiceConnection();
-    private TrackPoint lastTrackPoint;
-
-    @Nullable // Lazily loaded.
-    private Track track;
+    private TrackRecordingServiceConnection trackRecordingServiceConnection;
+    private TrackRecordingService.RecordingData recordingData = TrackRecordingService.NOT_RECORDING;
+    private TrackPoint latestTrackPoint;
 
     private StatisticsRecordingBinding viewBinding;
     private SensorsAdapter sensorsAdapter;
@@ -83,9 +69,9 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
             preferenceMetricUnits = PreferencesUtils.isMetricUnits(sharedPreferences, getContext());
         }
 
-        if (PreferencesUtils.isKey(getContext(), R.string.stats_rate_key, key) && track != null) {
+        if (PreferencesUtils.isKey(getContext(), R.string.stats_rate_key, key) && recordingData != null) {
             updateUInecessary = true;
-            preferenceReportSpeed = PreferencesUtils.isReportSpeed(sharedPreferences, getContext(), track.getCategory());
+            preferenceReportSpeed = PreferencesUtils.isReportSpeed(sharedPreferences, getContext(), recordingData.getTrackCategory());
         }
 
         if (PreferencesUtils.isKey(getContext(), R.string.stats_show_grade_altitude_key, key)) {
@@ -99,39 +85,29 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
         }
 
         if (key != null && updateUInecessary && isResumed()) {
-            getActivity().runOnUiThread(() -> {
-                if (isResumed()) {
-                    updateUI();
-                }
-            });
+            getActivity().runOnUiThread(this::updateUI);
         }
     };
 
-    private final Runnable updateUIeachSecond = new Runnable() {
+    private final Runnable bindChangedCallback = new Runnable() {
+        @Override
         public void run() {
-            if (isResumed() && isSelectedTrackRecording()) {
-                if (!isSelectedTrackPaused() && track != null) {
-                    synchronized (this) {
-                        if (lastTrackPoint != null && lastTrackPoint.hasLocation() && !lastTrackPoint.isRecent()) {
-                            lastTrackPoint = null;
-                            setLocationValues();
-                        }
-                    }
-                    updateTotalTime();
-                    updateSensorDataUI();
-                }
-
-                handlerUpdateUI.postDelayed(this, UI_UPDATE_INTERVAL.toMillis());
+            TrackRecordingService service = trackRecordingServiceConnection.getServiceIfBound();
+            if (service == null) {
+                Log.w(TAG, "could not get TrackRecordingService");
+                return;
             }
+
+            service.getRecordingDataObservable()
+                    .observe(StatisticsRecordingFragment.this, recordingData -> onRecordingDataChanged(recordingData));
         }
     };
 
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        handlerUpdateUI = new Handler();
-
         sharedPreferences = PreferencesUtils.getSharedPreferences(getContext());
+        trackRecordingServiceConnection = new TrackRecordingServiceConnection(bindChangedCallback);
 
         sensorsAdapter = new SensorsAdapter(getContext());
     }
@@ -139,7 +115,7 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         viewBinding = StatisticsRecordingBinding.inflate(inflater, container, false);
-        viewBinding.statsActivityTypeIcon.setOnClickListener(v -> ((TrackRecordingActivity) getActivity()).chooseActivityType(track != null ? track.getCategory() : "")); //TODO "" would be useless as Track was not yet loaded.
+        viewBinding.statsActivityTypeIcon.setOnClickListener(v -> ((TrackRecordingActivity) getActivity()).chooseActivityType(recordingData.getTrackCategory()));
 
         RecyclerView sensorsRecyclerView = viewBinding.statsSensorsRecyclerView;
         sensorsRecyclerView.setLayoutManager(new GridLayoutManager(getContext(), 2));
@@ -151,25 +127,18 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
     @Override
     public void onResume() {
         super.onResume();
-        resumeTrackDataHub();
 
         sharedPreferences.registerOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
         sharedPreferenceChangeListener.onSharedPreferenceChanged(sharedPreferences, null);
 
         trackRecordingServiceConnection.startConnection(getContext());
-
-        updateUIeachSecond.run();
-        handlerUpdateUI.post(updateUIeachSecond);
     }
 
     @Override
     public void onPause() {
         super.onPause();
-        pauseTrackDataHub();
 
         sharedPreferences.unregisterOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
-
-        handlerUpdateUI.removeCallbacks(updateUIeachSecond);
     }
 
     @Override
@@ -191,101 +160,12 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
         sharedPreferences = null;
     }
 
-    @Override
-    public void onTrackUpdated(final Track track) {
-        if (isResumed()) {
-            getActivity().runOnUiThread(() -> {
-                if (isResumed()) {
-                    if ((this.track == null && track != null) || (this.track != null && track != null && !this.track.getCategory().equals(track.getCategory()))) {
-                        sharedPreferenceChangeListener.onSharedPreferenceChanged(sharedPreferences, getString(R.string.stats_rate_key));
-                    }
-                    this.track = track;
-                    updateUI();
-                }
-            });
-        }
-    }
-
-    @Override
-    public void clearTrackPoints() {
-        lastTrackPoint = null;
-    }
-
-    @Override
-    public void onNewTrackPointsDone(@NonNull TrackPoint newLastTrackPoint, @NonNull TrackStatistics trackStatistics) {
-        if (isResumed()) {
-            getActivity().runOnUiThread(() -> {
-                if (isResumed()) {
-                    synchronized (this) {
-                        this.lastTrackPoint = newLastTrackPoint;
-
-                        if (!isSelectedTrackRecording() || isSelectedTrackPaused()) {
-                            this.lastTrackPoint = null;
-                        }
-
-                        if (this.lastTrackPoint != null && this.lastTrackPoint.hasLocation() && !this.lastTrackPoint.isRecent()) {
-                            this.lastTrackPoint = null;
-                        }
-                        setLocationValues();
-                    }
-                }
-            });
-        }
-    }
-
-    @Override
-    public void clearMarkers() {
-        // We don't care.
-    }
-
-    @Override
-    public void onNewMarker(Marker marker) {
-        // We don't care.
-    }
-
-    @Override
-    public void onNewMarkersDone() {
-        // We don't care.
-    }
-
-    /**
-     * Resumes the trackDataHub.
-     * Needs to be synchronized because trackDataHub can be accessed by multiple threads.
-     */
-    private synchronized void resumeTrackDataHub() {
-        trackDataHub = ((TrackRecordingActivity) getActivity()).getTrackDataHub();
-        trackDataHub.registerTrackDataListener(this, true, false, true, true);
-    }
-
-    /**
-     * Pauses the trackDataHub.
-     * Needs to be synchronized because trackDataHub can be accessed by multiple threads.
-     */
-    private synchronized void pauseTrackDataHub() {
-        trackDataHub.unregisterTrackDataListener(this);
-        trackDataHub = null;
-    }
-
-    /**
-     * Returns true if the selected track is recording.
-     * Needs to be synchronized because trackDataHub can be accessed by multiple threads.
-     */
-    private synchronized boolean isSelectedTrackRecording() {
-        return trackDataHub != null && trackDataHub.isSelectedTrackRecording();
-    }
-
-    /**
-     * Returns true if the selected track is paused.
-     * Needs to be synchronized because trackDataHub can be accessed by multiple threads.
-     */
-    private synchronized boolean isSelectedTrackPaused() {
-        return trackDataHub != null && trackDataHub.isSelectedTrackPaused();
-    }
-
     private void updateUI() {
-        updateStats();
-        setLocationValues();
-        updateSensorDataUI();
+        if (isResumed()) {
+            updateStats();
+            setLocationValues();
+            updateSensorDataUI();
+        }
     }
 
     /**
@@ -293,100 +173,45 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
      * Also sets altitude gain and loss.
      */
     private void updateSensorDataUI() {
-        TrackRecordingService trackRecordingService = trackRecordingServiceConnection.getServiceIfBound();
-
-        if (trackRecordingService == null) {
-            Log.d(TAG, "Cannot get the track recording service.");
-        } else {
-            SensorDataSet sensorDataSet = trackRecordingService.getSensorDataSet();
-            if (sensorDataSet != null) {
-                List<SensorDataModel> sensorDataList = new ArrayList<>();
-                if (sensorDataSet.getHeartRate() != null) {
-                    sensorDataList.add(new SensorDataModel(sensorDataSet.getHeartRate()));
-                }
-                if (sensorDataSet.getCyclingCadence() != null) {
-                    sensorDataList.add(new SensorDataModel(sensorDataSet.getCyclingCadence()));
-                }
-                if (sensorDataSet.getCyclingPower() != null) {
-                    sensorDataList.add(new SensorDataModel(sensorDataSet.getCyclingPower()));
-                }
-                sensorsAdapter.swapData(sensorDataList);
-                setSpeedSensorData(sensorDataSet);
+        SensorDataSet sensorDataSet = recordingData.getSensorDataSet();
+        if (sensorDataSet != null) {
+            List<SensorDataModel> sensorDataList = new ArrayList<>();
+            if (sensorDataSet.getHeartRate() != null) {
+                sensorDataList.add(new SensorDataModel(sensorDataSet.getHeartRate()));
             }
-            //TODO Check if we can get the total altitude gain and loss via trackStatistics instead of doing some computation in the UI layer.
-            setTotalAltitudeGain(trackRecordingService.getAltitudeGain_m());
-            setTotalAltitudeLoss(trackRecordingService.getAltitudeLoss_m());
-        }
-    }
-
-    // Set altitude gain
-    private void setTotalAltitudeGain(Float altitudeGain_m) {
-        Float totalAltitudeGain = altitudeGain_m;
-
-        if (track != null && track.getTrackStatistics().hasTotalAltitudeGain()) {
-            if (altitudeGain_m == null) {
-                totalAltitudeGain = 0f;
+            if (sensorDataSet.getCyclingCadence() != null) {
+                sensorDataList.add(new SensorDataModel(sensorDataSet.getCyclingCadence()));
             }
-
-            totalAltitudeGain += track.getTrackStatistics().getTotalAltitudeGain();
+            if (sensorDataSet.getCyclingPower() != null) {
+                sensorDataList.add(new SensorDataModel(sensorDataSet.getCyclingPower()));
+            }
+            sensorsAdapter.swapData(sensorDataList);
         }
 
-        Pair<String, String> parts = StringUtils.formatAltitude(getContext(), totalAltitudeGain, preferenceMetricUnits);
-        viewBinding.statsAltitudeGainValue.setText(parts.first);
-        viewBinding.statsAltitudeGainUnit.setText(parts.second);
-    }
-
-    // Set altitude loss
-    private void setTotalAltitudeLoss(Float altitudeLoss_m) {
-        Float totalAltitudeLoss = altitudeLoss_m;
-
-        if (track != null && track.getTrackStatistics().hasTotalAltitudeLoss()) {
-            if (altitudeLoss_m == null) {
-                totalAltitudeLoss = track.getTrackStatistics().getTotalAltitudeLoss();
-            } else {
-                totalAltitudeLoss += track.getTrackStatistics().getTotalAltitudeLoss();
-            }
+        {
+            Pair<String, String> parts = StringUtils.formatAltitude(getContext(), recordingData.getTrackStatistics().getTotalAltitudeGain(), preferenceMetricUnits);
+            viewBinding.statsAltitudeGainValue.setText(parts.first);
+            viewBinding.statsAltitudeGainUnit.setText(parts.second);
         }
-
-        Pair<String, String> parts = StringUtils.formatAltitude(getContext(), totalAltitudeLoss, preferenceMetricUnits);
-        viewBinding.statsAltitudeLossValue.setText(parts.first);
-        viewBinding.statsAltitudeLossUnit.setText(parts.second);
-    }
-
-    private void setSpeedSensorData(SensorDataSet sensorDataSet) {
-        if (sensorDataSet != null && sensorDataSet.getCyclingDistanceSpeed() != null) {
-            SensorDataCycling.DistanceSpeed data = sensorDataSet.getCyclingDistanceSpeed();
-
-            if (data.hasValue() && data.isRecent()) {
-                setTotalDistance(data.getValue().distanceOverall);
-                setSpeed(data.getValue().speed);
-            }
-            if (data.hasValue() && data.isRecent()) {
-                setSpeed(data.getValue().speed);
-            }
+        {
+            Pair<String, String> parts = StringUtils.formatAltitude(getContext(), recordingData.getTrackStatistics().getTotalAltitudeLoss(), preferenceMetricUnits);
+            viewBinding.statsAltitudeLossValue.setText(parts.first);
+            viewBinding.statsAltitudeLossUnit.setText(parts.second);
         }
     }
 
     private void updateStats() {
-
-        setTotalDistance(Distance.of(0)); //TODO Why?
-
         // Set activity type
-        if (track != null) {
-            String trackIconValue = TrackIconUtils.getIconValue(getContext(), track.getCategory());
-            viewBinding.statsActivityTypeIcon.setEnabled(isSelectedTrackRecording());
-            viewBinding.statsActivityTypeIcon.setImageResource(TrackIconUtils.getIconDrawable(trackIconValue));
-        }
+        String trackIconValue = TrackIconUtils.getIconValue(getContext(), recordingData.getTrackCategory());
+        viewBinding.statsActivityTypeIcon.setImageResource(TrackIconUtils.getIconDrawable(trackIconValue));
 
         // Set time
-        if (track != null) {
-            viewBinding.statsMovingTimeValue.setText(StringUtils.formatElapsedTime(track.getTrackStatistics().getMovingTime()));
-            updateTotalTime();
-        }
+        viewBinding.statsMovingTimeValue.setText(StringUtils.formatElapsedTime(recordingData.getTrackStatistics().getMovingTime()));
+        updateTotalTime();
 
         // Set average speed/pace
         {
-            Speed speed = track != null ? track.getTrackStatistics().getAverageSpeed() : null;
+            Speed speed = recordingData.getTrackStatistics().getAverageSpeed();
             viewBinding.statsAverageSpeedLabel.setText(preferenceReportSpeed ? R.string.stats_average_speed : R.string.stats_average_pace);
 
             Pair<String, String> parts = StringUtils.getSpeedParts(getContext(), speed, preferenceMetricUnits, preferenceReportSpeed);
@@ -396,7 +221,7 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
 
         // Set max speed/pace
         {
-            Speed speed = track != null ? track.getTrackStatistics().getMaxSpeed() : null;
+            Speed speed = recordingData.getTrackStatistics().getMaxSpeed();
 
             viewBinding.statsMaxSpeedLabel.setText(preferenceReportSpeed ? R.string.stats_max_speed : R.string.stats_fastest_pace);
 
@@ -407,7 +232,7 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
 
         // Set moving speed/pace
         {
-            Speed speed = track != null ? track.getTrackStatistics().getAverageMovingSpeed() : null;
+            Speed speed = recordingData.getTrackStatistics().getAverageMovingSpeed();
 
             viewBinding.statsMovingSpeedLabel.setText(preferenceReportSpeed ? R.string.stats_average_moving_speed : R.string.stats_average_moving_pace);
 
@@ -417,34 +242,41 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
         }
 
         // Set altitude gain and loss
-        {
-            viewBinding.statsAltitudeGroup.setVisibility(preferenceShowAltitude ? View.VISIBLE : View.GONE);
-        }
+        viewBinding.statsAltitudeGroup.setVisibility(preferenceShowAltitude ? View.VISIBLE : View.GONE);
     }
 
     private void updateTotalTime() {
-        Duration totalTime = track.getTrackStatistics().getTotalTime();
-        if (isSelectedTrackRecording()) {
-            TrackRecordingService trackRecordingService = trackRecordingServiceConnection.getServiceIfBound();
-            if (trackRecordingService != null) {
-                totalTime = trackRecordingService.getTotalTime();
-            }
-        }
-
+        Duration totalTime = recordingData.getTrackStatistics().getTotalTime();
         viewBinding.statsTotalTimeValue.setText(StringUtils.formatElapsedTime(totalTime));
     }
 
     private void setLocationValues() {
         // Set speed/pace
-        Speed speed = lastTrackPoint != null && lastTrackPoint.hasSpeed() ? lastTrackPoint.getSpeed() : null;
+        Speed speed = latestTrackPoint != null && latestTrackPoint.hasSpeed() ? latestTrackPoint.getSpeed() : null;
+
+        SensorDataSet sensorDataSet = recordingData.getSensorDataSet();
+        if (sensorDataSet != null && sensorDataSet.getCyclingDistanceSpeed() != null) {
+            SensorDataCycling.DistanceSpeed data = sensorDataSet.getCyclingDistanceSpeed();
+            if (data.hasValue() && data.isRecent()) {
+                speed = data.getValue().speed;
+            }
+        }
+
         setSpeed(speed);
 
+        // Set distance
+        {
+            Pair<String, String> parts = StringUtils.getDistanceParts(getContext(), recordingData.getTrackStatistics().getTotalDistance(), preferenceMetricUnits);
+
+            viewBinding.statsDistanceValue.setText(parts.first);
+            viewBinding.statsDistanceUnit.setText(parts.second);
+        }
         // Set altitude
         viewBinding.statsAltitudeGroup.setVisibility(preferenceShowAltitude ? View.VISIBLE : View.GONE);
 
         if (preferenceShowAltitude) {
             // Current altitude
-            Float altitude = lastTrackPoint != null && lastTrackPoint.hasAltitude() ? (float) lastTrackPoint.getAltitude() : null;
+            Float altitude = latestTrackPoint != null && latestTrackPoint.hasAltitude() ? (float) latestTrackPoint.getAltitude().toM() : null;
             Pair<String, String> parts = StringUtils.formatAltitude(getContext(), altitude, preferenceMetricUnits);
             viewBinding.statsAltitudeCurrentValue.setText(parts.first);
             viewBinding.statsAltitudeCurrentUnit.setText(parts.second);
@@ -455,23 +287,15 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
         if (preferenceShowCoordinate) {
             String latitudeText = getContext().getString(R.string.value_unknown);
             String longitudeText = getContext().getString(R.string.value_unknown);
-            if (lastTrackPoint != null && lastTrackPoint.hasLocation()) {
-                latitudeText = StringUtils.formatCoordinate(lastTrackPoint.getLatitude());
-                longitudeText = StringUtils.formatCoordinate(lastTrackPoint.getLongitude());
+            if (latestTrackPoint != null && latestTrackPoint.hasLocation()) {
+                latitudeText = StringUtils.formatCoordinate(latestTrackPoint.getLatitude());
+                longitudeText = StringUtils.formatCoordinate(latestTrackPoint.getLongitude());
             }
             viewBinding.statsLatitudeValue.setText(latitudeText);
             viewBinding.statsLongitudeValue.setText(longitudeText);
         }
     }
 
-    private void setTotalDistance(Distance sensorDistanceSinceLastTrackpoint) {
-        Distance totalDistance = track != null ? (track.getTrackStatistics().getTotalDistance().plus(sensorDistanceSinceLastTrackpoint)) : Distance.invalid();
-        Pair<String, String> parts = StringUtils.getDistanceParts(getContext(), totalDistance, preferenceMetricUnits);
-
-        viewBinding.statsDistanceValue.setText(parts.first);
-        viewBinding.statsDistanceUnit.setText(parts.second);
-    }
-
     private void setSpeed(Speed speed) {
         viewBinding.statsSpeedLabel.setText(preferenceReportSpeed ? R.string.stats_speed : R.string.stats_pace);
 
@@ -479,4 +303,21 @@ public class StatisticsRecordingFragment extends Fragment implements TrackDataLi
         viewBinding.statsSpeedValue.setText(parts.first);
         viewBinding.statsSpeedUnit.setText(parts.second);
     }
+
+    private void onRecordingDataChanged(TrackRecordingService.RecordingData recordingData) {
+        String oldCategory = this.recordingData.getTrackCategory();
+        String newCategory = recordingData.getTrackCategory();
+        this.recordingData = recordingData;
+
+        if (!oldCategory.equals(newCategory)) {
+            sharedPreferenceChangeListener.onSharedPreferenceChanged(sharedPreferences, getString(R.string.stats_rate_key));
+        }
+
+        this.latestTrackPoint = recordingData.getLatestTrackPoint();
+        if (latestTrackPoint != null && latestTrackPoint.hasLocation() && !latestTrackPoint.isRecent()) {
+            latestTrackPoint = null;
+        }
+
+        updateUI();
+    }
 }

src/main/java/de/dennisguse/opentracks/io/file/TrackFileFormat.java

@@ -16,6 +16,7 @@ import de.dennisguse.opentracks.io.file.exporter.TrackExporter;
  */
 public enum TrackFileFormat {
 
+    @Deprecated //Not needed anymore; we now have OSMDashboard; was only used to share with other applications
     KML_ONLY_TRACK {
         @Override
         public TrackExporter createTrackExporter(Context context) {

src/main/java/de/dennisguse/opentracks/io/file/exporter/GPXTrackExporter.java

@@ -198,7 +198,6 @@ public class GPXTrackExporter implements TrackExporter {
             printWriter.println("xmlns=\"http://www.topografix.com/GPX/1/1\"");
             printWriter.println("xmlns:topografix=\"http://www.topografix.com/GPX/Private/TopoGrafix/0/1\"");
             printWriter.println("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"");
-            printWriter.println("xmlns:atom=\"http://www.w3.org/2005/Atom\"");
             printWriter.println("xmlns:opentracks=\"http://opentracksapp.com/xmlschemas/v1\"");
             printWriter.println("xmlns:gpxtpx=\"http://www.garmin.com/xmlschemas/TrackPointExtension/v2\"");
             printWriter.println("xmlns:pwr=\"http://www.garmin.com/xmlschemas/PowerExtension/v1\"");
@@ -237,7 +236,7 @@ public class GPXTrackExporter implements TrackExporter {
         if (printWriter != null) {
             printWriter.println("<wpt " + formatLocation(marker.getLatitude(), marker.getLongitude()) + ">");
             if (marker.hasAltitude()) {
-                printWriter.println("<ele>" + ALTITUDE_FORMAT.format(marker.getAltitude()) + "</ele>");
+                printWriter.println("<ele>" + ALTITUDE_FORMAT.format(marker.getAltitude().toM()) + "</ele>");
             }
             printWriter.println("<time>" + StringUtils.formatDateTimeIso8601(marker.getTime()) + "</time>");
             printWriter.println("<name>" + StringUtils.formatCData(marker.getName()) + "</name>");
@@ -281,7 +280,7 @@ public class GPXTrackExporter implements TrackExporter {
             printWriter.println("<trkpt " + formatLocation(trackPoint.getLatitude(), trackPoint.getLongitude()) + ">");
 
             if (trackPoint.hasAltitude()) {
-                printWriter.println("<ele>" + ALTITUDE_FORMAT.format(trackPoint.getAltitude()) + "</ele>");
+                printWriter.println("<ele>" + ALTITUDE_FORMAT.format(trackPoint.getAltitude().toM()) + "</ele>");
             }
 
             printWriter.println("<time>" + StringUtils.formatDateTimeIso8601(trackPoint.getTime()) + "</time>");

src/main/java/de/dennisguse/opentracks/io/file/exporter/KMLTrackExporter.java

@@ -518,13 +518,12 @@ public class KMLTrackExporter implements TrackExporter {
         return location.getBearing();
     }
 
-    private String getCoordinates(Location location, String separator) {
-        StringBuilder builder = new StringBuilder();
-        builder.append(location.getLongitude()).append(separator).append(location.getLatitude());
+    private static String getCoordinates(Location location, String separator) {
+        String result = location.getLongitude() + separator + location.getLatitude();
         if (location.hasAltitude()) {
-            builder.append(separator).append(location.getAltitude());
+            result += separator + location.getAltitude();
         }
-        return builder.toString();
+        return result;
     }
 
     /**

src/main/java/de/dennisguse/opentracks/io/file/importer/AbstractFileTrackImporter.java

@@ -1,584 +0,0 @@
-/*
- * Copyright 2012 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package de.dennisguse.opentracks.io.file.importer;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.database.sqlite.SQLiteConstraintException;
-import android.net.Uri;
-import android.util.Log;
-
-import androidx.annotation.NonNull;
-
-import org.xml.sax.Locator;
-import org.xml.sax.SAXException;
-import org.xml.sax.helpers.DefaultHandler;
-
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
-import java.time.Duration;
-import java.time.Instant;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Locale;
-import java.util.UUID;
-
-import javax.xml.parsers.ParserConfigurationException;
-import javax.xml.parsers.SAXParserFactory;
-
-import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.content.data.Distance;
-import de.dennisguse.opentracks.content.data.Marker;
-import de.dennisguse.opentracks.content.data.Speed;
-import de.dennisguse.opentracks.content.data.Track;
-import de.dennisguse.opentracks.content.data.TrackPoint;
-import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
-import de.dennisguse.opentracks.content.provider.TrackPointIterator;
-import de.dennisguse.opentracks.stats.TrackStatistics;
-import de.dennisguse.opentracks.stats.TrackStatisticsUpdater;
-import de.dennisguse.opentracks.util.FileUtils;
-import de.dennisguse.opentracks.util.LocationUtils;
-import de.dennisguse.opentracks.util.PreferencesUtils;
-import de.dennisguse.opentracks.util.StringUtils;
-import de.dennisguse.opentracks.util.TrackIconUtils;
-
-/**
- * Abstract class for file track importers.
- *
- * @author Jimmy Shih
- */
-abstract class AbstractFileTrackImporter extends DefaultHandler implements TrackImporter {
-
-    private static final String TAG = AbstractFileTrackImporter.class.getSimpleName();
-
-    private final Context context;
-    private final ContentProviderUtils contentProviderUtils;
-    private final Distance recordingDistanceInterval;
-
-    private final List<Track.Id> trackIds = new ArrayList<>();
-    private final List<Marker> markers = new ArrayList<>();
-
-    // The current element content
-    //TODO Should be made private and getter be used by child classes.
-    protected String content;
-
-    protected String icon;
-    protected String name;
-    protected String description;
-    protected String category;
-    protected String latitude;
-    protected String longitude;
-    protected String altitude;
-    protected String time;
-    protected String speed;
-    protected String heartrate;
-    protected String cadence;
-    protected String power;
-    protected String markerType;
-    protected String photoUrl;
-    protected String uuid;
-    protected String gain;
-    protected String loss;
-    protected String distance;
-
-    // The current track data
-    private TrackData trackData;
-
-    // The SAX locator to get the current line information
-    private Locator locator;
-
-    private final SharedPreferences sharedPreferences;
-
-    AbstractFileTrackImporter(Context context, ContentProviderUtils contentProviderUtils) {
-        this.context = context;
-        this.contentProviderUtils = contentProviderUtils;
-        sharedPreferences = PreferencesUtils.getSharedPreferences(context);
-        this.recordingDistanceInterval = PreferencesUtils.getRecordingDistanceInterval(sharedPreferences, context);
-    }
-
-    @Override
-    public void setDocumentLocator(Locator locator) {
-        this.locator = locator;
-    }
-
-    @Override
-    public void characters(char[] ch, int start, int length) {
-        String newContent = new String(ch, start, length);
-        if (content == null) {
-            content = newContent;
-        } else {
-            // In 99% of the cases, a single call to this method will be made for each sequence of characters we're interested in, so we'll rarely be concatenating strings, thus not justifying the use of a StringBuilder.
-            content += newContent;
-        }
-    }
-
-    @Override
-    @NonNull
-    public List<Track.Id> importFile(InputStream inputStream) {
-        try {
-            SAXParserFactory.newInstance().newSAXParser().parse(inputStream, this);
-            return trackIds;
-        } catch (IOException | SAXException | ParserConfigurationException | ParsingException e) {
-            Log.e(TAG, "Unable to import file", e);
-            if (trackIds.size() > 0) {
-                cleanImport();
-            }
-            throw new ImportParserException(e);
-        } catch (SQLiteConstraintException e) {
-            Log.e(TAG, "Unable to import file", e);
-            throw new ImportAlreadyExistsException(e);
-        }
-    }
-
-    protected void onFileEnd() {
-        // Add markers to the last imported track
-        int size = trackIds.size();
-        if (size == 0) {
-            return;
-        }
-        Track.Id trackId = trackIds.get(size - 1);
-        Track track = contentProviderUtils.getTrack(trackId);
-        if (track == null) {
-            return;
-        }
-
-        int markerPosition = -1;
-        Marker marker = null;
-        TrackPoint trackPoint = null;
-        TrackStatisticsUpdater trackStatisticsUpdater = new TrackStatisticsUpdater();
-
-        // TODO We are doing in memory processing for trackpoints; so we can do this in memory as well.
-        try (TrackPointIterator trackPointIterator = contentProviderUtils.getTrackPointLocationIterator(track.getId(), null)) {
-
-            while (true) {
-                if (marker == null) {
-                    markerPosition++;
-                    marker = markerPosition < markers.size() ? markers.get(markerPosition) : null;
-                    if (marker == null) {
-                        // No more markers
-                        return;
-                    }
-                    // If marker had photo it must be translated to internal photo url (depend on track id)
-                    if (marker.hasPhoto()) {
-                        marker.setPhotoUrl(getInternalPhotoUrl(marker.getPhotoUrl()));
-                    }
-                }
-
-                if (trackPoint == null) {
-                    if (!trackPointIterator.hasNext()) {
-                        // No more track points. Ignore the rest of the markers.
-                        return;
-                    }
-                    trackPoint = trackPointIterator.next();
-                    trackStatisticsUpdater.addTrackPoint(trackPoint, recordingDistanceInterval);
-                }
-
-                if ((marker.getTime()).isAfter(trackPoint.getTime())) {
-                    trackPoint = null;
-                } else if (marker.getTime().isBefore(trackPoint.getTime())) {
-                    Log.w(TAG, "Ignoring marker: current trackPoint was after marker.");
-                    marker = null;
-                } else {
-                    // The marker trackPoint time matches the track point time
-                    if (!trackPoint.hasLocation()) {
-                        // Invalid trackPoint, load the next trackPoint
-                        trackPoint = null;
-                        continue;
-                    }
-
-                    // Valid trackPoint
-                    if (trackPoint.getLatitude() == marker.getLatitude() && trackPoint.getLongitude() == marker.getLongitude()) {
-                        String markerDescription = marker.getDescription();
-                        String icon = context.getString(R.string.marker_icon_url);
-                        TrackStatistics stats = trackStatisticsUpdater.getTrackStatistics();
-
-                        // Insert marker
-                        Marker newMarker = new Marker(marker.getName(), markerDescription, marker.getCategory(), icon, track.getId(), stats, trackPoint, marker.getPhotoUrl());
-                        contentProviderUtils.insertMarker(newMarker);
-                    }
-
-                    // Load the next marker
-                    marker = null;
-                }
-            }
-        }
-    }
-
-    /**
-     * On track start.
-     */
-    protected void onTrackStart() throws SAXException {
-        trackData = new TrackData();
-    }
-
-    /**
-     * On track end.
-     */
-    protected void onTrackEnd() {
-        if (name != null) {
-            trackData.track.setName(name);
-        }
-
-        try {
-            trackData.track.setUuid(UUID.fromString(uuid));
-        } catch (IllegalArgumentException | NullPointerException e) {
-            Log.w(TAG, "could not parse Track UUID, generating a new one.");
-            trackData.track.setUuid(UUID.randomUUID());
-        }
-
-        if (description != null) {
-            trackData.track.setDescription(description);
-        }
-        if (category != null) {
-            trackData.track.setCategory(category);
-            //TODO remove when GPX and KML support reading this property.
-            if (icon == null)
-                trackData.track.setIcon(TrackIconUtils.getIconValue(context, category));
-        }
-        if (icon != null) {
-            trackData.track.setIcon(icon);
-        }
-
-        TrackStatisticsUpdater statistics = new TrackStatisticsUpdater();
-        //TODO I guess, we should not filter by recordingDistanceInterval on import; the data is already recorded, so we should not change it.
-        for (TrackPoint trackPoint : trackData.bufferedTrackPoints) {
-            statistics.addTrackPoint(trackPoint, recordingDistanceInterval);
-        }
-        if (!statistics.isTrackInitialized()) {
-            throw new ImportParserException("Track did not contain any locations.");
-        }
-        trackData.track.setTrackStatistics(statistics.getTrackStatistics());
-
-        Track track = contentProviderUtils.getTrack(trackData.track.getUuid());
-        if (track != null) {
-            if (PreferencesUtils.getPreventReimportTracks(sharedPreferences, context)) {
-                throw new ImportAlreadyExistsException(context.getString(R.string.import_prevent_reimport));
-            }
-
-            //TODO This is a workaround until we have proper UI.
-            trackData.track.setUuid(UUID.randomUUID());
-        }
-
-        if (trackIds.size() > 0) {
-            // TODO Multi track is not supported yet.
-            cleanImport();
-            throw new ImportParserException("Multi track not supported");
-        }
-        Uri uri = contentProviderUtils.insertTrack(trackData.track);
-        Track.Id trackId = new Track.Id(Long.parseLong(uri.getLastPathSegment()));
-        trackIds.add(trackId);
-        trackData.track.setId(trackId);
-
-        flushTrackPoints();
-    }
-
-    protected void onTrackSegmentStart() {
-        trackData.numberOfSegments++;
-
-        //If not the first segment, add a pause separator if there is at least one TrackPoint in the last segment.
-        if (trackData.numberOfSegments > 1
-                && trackData.lastLocationInCurrentSegment != null
-                && (trackData.lastLocationInCurrentSegment.getType().equals(TrackPoint.Type.SEGMENT_START_MANUAL))
-        ) {
-            insertTrackPoint(TrackPoint.createSegmentEndWithTime(trackData.lastLocationInCurrentSegment.getTime()));
-        }
-        trackData.lastLocationInCurrentSegment = null;
-    }
-
-    protected void onTrackSegmentEnd() {
-        TrackPoint trackPoint = trackData.lastLocationInCurrentSegment;
-        if (trackPoint == null) {
-            return;
-        }
-
-        if (!trackPoint.hasLocation()) {
-            trackPoint.setType(TrackPoint.Type.SEGMENT_END_MANUAL);
-        }
-    }
-
-    protected void addMarker() throws ParsingException {
-        // Markers must have a time, else cannot match to the track points
-        if (time == null) {
-            Log.w(TAG, "Marker without time ignored.");
-            return;
-        }
-
-        TrackPoint trackPoint = createTrackPoint();
-
-        if (!trackPoint.hasLocation()) {
-            Log.w(TAG, "Marker with invalid coordinates ignored: " + trackPoint.getLocation());
-            return;
-        }
-        Marker marker = new Marker(null, trackPoint);
-
-        if (name != null) {
-            marker.setName(name);
-        }
-        if (description != null) {
-            marker.setDescription(description);
-        }
-        if (category != null) {
-            marker.setCategory(category);
-        }
-
-        if (photoUrl != null) {
-            marker.setPhotoUrl(photoUrl);
-        }
-        markers.add(marker);
-    }
-
-    protected TrackPoint getTrackPoint() throws ParsingException {
-        TrackPoint trackPoint = createTrackPoint();
-
-        if (trackPoint.hasLocation()) {
-            Instant time = trackPoint.getTime();
-            if (trackPoint.getLatitude() == 100) {
-                //TODO Remove by 31st December 2021.
-                trackPoint = new TrackPoint(TrackPoint.Type.SEGMENT_END_MANUAL);
-                trackPoint.setTime(time);
-            } else if (trackPoint.getLatitude() == 200) {
-                //TODO Remove by 31st December 2021.
-                trackPoint = new TrackPoint(TrackPoint.Type.SEGMENT_START_MANUAL);
-                trackPoint.setTime(time);
-
-            } else if (!LocationUtils.isValidLocation(trackPoint.getLocation())) {
-                throw new ParsingException(createErrorMessage("Invalid location detected: " + trackPoint));
-            }
-        }
-
-        // Calculate derived attributes from the previous point
-        if (trackData.lastLocationInCurrentSegment != null && trackData.lastLocationInCurrentSegment.getTime() == null) {
-            if (!trackPoint.hasSpeed()) {
-                Duration timeDifference = Duration.between(trackData.lastLocationInCurrentSegment.getTime(), trackPoint.getTime());
-
-                // Check for negative time change
-                if (timeDifference.isNegative()) {
-                    Log.w(TAG, "Time difference not positive.");
-                } else {
-
-                    /*
-                     * We don't have a speed and bearing in GPX, make something up from the last two points.
-                     * GPS points tend to have some inherent imprecision, speed and bearing will likely be off, so the statistics for things like max speed will also be off.
-                     */
-                    if (trackPoint.hasLocation() && trackData.lastLocationInCurrentSegment.hasLocation()) {
-                        trackPoint.setSpeed(Speed.of(trackData.lastLocationInCurrentSegment.distanceToPrevious(trackPoint), timeDifference));
-                    }
-                }
-            }
-            if (trackPoint.hasLocation() && trackData.lastLocationInCurrentSegment.hasLocation()) {
-                trackPoint.setBearing(trackData.lastLocationInCurrentSegment.bearingTo(trackPoint));
-
-                Distance maxRecordingDistance = PreferencesUtils.getMaxRecordingDistance(sharedPreferences, context); //TODO Should only be read once!
-                Distance distanceToLastTrackLocation = trackPoint.distanceToPrevious(trackData.lastLocationInCurrentSegment);
-                if (distanceToLastTrackLocation.greaterThan(maxRecordingDistance)) {
-                    trackPoint.setType(TrackPoint.Type.SEGMENT_START_AUTOMATIC);
-                }
-            }
-        }
-
-        trackData.lastLocationInCurrentSegment = trackPoint;
-        return trackPoint;
-    }
-
-    /**
-     * Creates an error message.
-     *
-     * @param message the message
-     */
-    protected String createErrorMessage(String message) {
-        return String.format(Locale.US, "Parsing error at line: %d column: %d. %s", locator.getLineNumber(), locator.getColumnNumber(), message);
-    }
-
-    /**
-     * Gets the photo url for a file.
-     *
-     * @param externalPhotoUrl the file name
-     */
-    protected String getInternalPhotoUrl(String externalPhotoUrl) {
-        if (trackData.track.getId() == null) {
-            Log.e(TAG, "Track id is invalid.");
-            return null;
-        }
-
-        if (externalPhotoUrl == null) {
-            Log.i(TAG, "External photo url is null.");
-            return null;
-        }
-
-        String importFileName = KmzTrackImporter.importNameForFilename(externalPhotoUrl);
-        File file = FileUtils.buildInternalPhotoFile(context, trackData.track.getId(), Uri.parse(importFileName));
-        if (file != null) {
-            Uri photoUri = FileUtils.getUriForFile(context, file);
-            return "" + photoUri;
-        }
-
-        return null;
-    }
-
-    private TrackPoint createTrackPoint() throws ParsingException {
-        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.TRACKPOINT);
-
-        try {
-            trackPoint.setTime(StringUtils.parseTime(time));
-        } catch (Exception e) {
-            throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse time: %s", time)), e);
-        }
-
-        if (latitude == null || longitude == null) {
-            return trackPoint;
-        }
-
-        try {
-            trackPoint.setLatitude(Double.parseDouble(latitude));
-            trackPoint.setLongitude(Double.parseDouble(longitude));
-        } catch (NumberFormatException e) {
-            throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse latitude longitude: %s %s", latitude, longitude)), e);
-        }
-
-
-        if (altitude != null) {
-            try {
-                trackPoint.setAltitude(Double.parseDouble(altitude));
-            } catch (NumberFormatException e) {
-                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse altitude: %s", altitude)), e);
-            }
-        }
-
-        if (speed != null) {
-            try {
-                trackPoint.setSpeed(Speed.of(speed));
-            } catch (Exception e) {
-                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse speed: %s", speed)), e);
-            }
-        }
-        if (heartrate != null) {
-            try {
-                trackPoint.setHeartRate_bpm(Float.parseFloat(heartrate));
-            } catch (Exception e) {
-                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse heart rate: %s", heartrate)), e);
-            }
-        }
-
-        if (cadence != null) {
-            try {
-                trackPoint.setCyclingCadence_rpm(Float.parseFloat(cadence));
-            } catch (Exception e) {
-                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse cadence: %s", cadence)), e);
-            }
-        }
-
-        if (power != null) {
-            try {
-                trackPoint.setPower(Float.parseFloat(power));
-            } catch (Exception e) {
-                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse power: %s", power)), e);
-            }
-        }
-
-        if (gain != null) {
-            try {
-                trackPoint.setAltitudeGain(Float.parseFloat(gain));
-            } catch (Exception e) {
-                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse altitude gain: %s", gain)), e);
-            }
-        }
-        if (loss != null) {
-            try {
-                trackPoint.setAltitudeLoss(Float.parseFloat(loss));
-            } catch (Exception e) {
-                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse altitude loss: %s", loss)), e);
-            }
-        }
-        if (distance != null) {
-            try {
-                trackPoint.setSensorDistance(Distance.of(distance));
-            } catch (Exception e) {
-                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse distance: %s", distance)), e);
-            }
-        }
-
-        return trackPoint;
-    }
-
-    /**
-     * Inserts a trackPoint.
-     *
-     * @param trackPoint the trackPoint
-     */
-    protected void insertTrackPoint(TrackPoint trackPoint) {
-        trackData.bufferedTrackPoints.add(trackPoint);
-    }
-
-    protected boolean isFirstTrackPointInSegment() {
-        return trackData.lastLocationInCurrentSegment == null;
-    }
-
-    /**
-     * Flushes the TrackPoints to the database.
-     */
-    private void flushTrackPoints() {
-        if (trackData.bufferedTrackPoints.size() > 0) {
-            contentProviderUtils.bulkInsertTrackPoint(trackData.bufferedTrackPoints, trackData.track.getId());
-            trackData.bufferedTrackPoints.clear();
-        }
-    }
-
-    /**
-     * Cleans up import.
-     */
-    private void cleanImport() {
-        contentProviderUtils.deleteTracks(context, trackIds);
-    }
-
-    /**
-     * Data for the current track.
-     *
-     * @author Jimmy Shih
-     */
-// TODO Why private inner class?
-    private static class TrackData {
-        // The current track
-        final Track track = new Track();
-
-        // The number of segments processed for the current track
-        int numberOfSegments = 0;
-
-        // The last location in the current segment; Null if the current segment doesn't have a last location
-        TrackPoint lastLocationInCurrentSegment;
-
-        // The buffered locations
-        final List<TrackPoint> bufferedTrackPoints = new ArrayList<>();
-    }
-
-    public static class ParsingException extends RuntimeException {
-
-        private ParsingException(@NonNull String message) {
-            super(message);
-        }
-
-        private ParsingException(@NonNull String message, Exception cause) {
-            super(message, cause);
-        }
-
-        @NonNull
-        @Override
-        public String toString() {
-            return "" + getMessage();
-        }
-    }
-}

src/main/java/de/dennisguse/opentracks/io/file/importer/GpxFileTrackImporter.java

@@ -1,242 +0,0 @@
-/*
- * Copyright 2010 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package de.dennisguse.opentracks.io.file.importer;
-
-import android.content.Context;
-
-import androidx.annotation.VisibleForTesting;
-
-import org.xml.sax.Attributes;
-import org.xml.sax.SAXException;
-
-import de.dennisguse.opentracks.content.data.TrackPoint;
-import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
-
-/**
- * Imports a GPX file.
- * Uses:
- * * https://www8.garmin.com/xmlschemas/TrackPointExtensionv2.xsd
- * * https://www8.garmin.com/xmlschemas/PowerExtensionv1.xsd
- * <p>
- * {@link de.dennisguse.opentracks.io.file.exporter.GPXTrackExporter} does not export information if a segment was started automatic or manually.
- * Therefore, all segments starts are marked as SEGMENT_START_AUTOMATIC.
- * Thus, the {@link de.dennisguse.opentracks.stats.TrackStatistics} cannot be restored correctly.
- *
- * @author Jimmy Shih
- */
-public class GpxFileTrackImporter extends AbstractFileTrackImporter {
-
-    private static final String TAG_DESCRIPTION = "desc";
-    private static final String TAG_COMMENT = "cmt";
-    private static final String TAG_ALTITUDE = "ele";
-    private static final String TAG_GPX = "gpx";
-    private static final String TAG_NAME = "name";
-    private static final String TAG_TIME = "time";
-    private static final String TAG_TRACK = "trk";
-    private static final String TAG_TRACK_POINT = "trkpt";
-    private static final String TAG_TRACK_SEGMENT = "trkseg";
-    private static final String TAG_TYPE = "type";
-    private static final String TAG_MARKER = "wpt";
-    private static final String TAG_ID = "opentracks:trackid";
-
-    private static final String ATTRIBUTE_LAT = "lat";
-    private static final String ATTRIBUTE_LON = "lon";
-
-    private static final String TAG_EXTENSION_SPEED = "gpxtpx:speed";
-    private static final String TAG_EXTENSION_HEARTRATE = "gpxtpx:hr";
-    private static final String TAG_EXTENSION_CADENCE = "gpxtpx:cad";
-    private static final String TAG_EXTENSION_POWER = "pwr:PowerInWatts";
-
-    private static final String TAG_EXTENSION_GAIN = "opentracks:gain";
-    private static final String TAG_EXTENSION_LOSS = "opentracks:loss";
-    private static final String TAG_EXTENSION_DISTANCE = "opentracks:distance";
-
-    /**
-     * Constructor.
-     *
-     * @param context the context
-     */
-    public GpxFileTrackImporter(Context context) {
-        this(context, new ContentProviderUtils(context));
-    }
-
-    @VisibleForTesting
-    GpxFileTrackImporter(Context context, ContentProviderUtils contentProviderUtils) {
-        super(context, contentProviderUtils);
-    }
-
-    @Override
-    public void startElement(String uri, String localName, String tag, Attributes attributes) throws SAXException {
-        switch (tag) {
-            case TAG_MARKER:
-                onMarkerStart(attributes);
-                break;
-            case TAG_TRACK:
-                onTrackStart();
-                break;
-            case TAG_TRACK_SEGMENT:
-                onTrackSegmentStart();
-                break;
-            case TAG_TRACK_POINT:
-                onTrackPointStart(attributes);
-                break;
-        }
-    }
-
-    @Override
-    public void endElement(String uri, String localName, String tag) {
-        switch (tag) {
-            case TAG_GPX:
-                onFileEnd();
-                break;
-            case TAG_MARKER:
-                onMarkerEnd();
-                break;
-            case TAG_TRACK:
-                onTrackEnd();
-                break;
-            case TAG_TRACK_SEGMENT:
-                onTrackSegmentEnd();
-                break;
-            case TAG_TRACK_POINT:
-                onTrackPointEnd();
-                break;
-            case TAG_NAME:
-                if (content != null) {
-                    name = content.trim();
-                }
-                break;
-            case TAG_DESCRIPTION:
-                if (content != null) {
-                    description = content.trim();
-                }
-                break;
-            case TAG_TYPE:
-                if (content != null) {
-                    category = content.trim();
-                }
-                break;
-            case TAG_TIME:
-                if (content != null) {
-                    time = content.trim();
-                }
-                break;
-            case TAG_ALTITUDE:
-                if (content != null) {
-                    altitude = content.trim();
-                }
-                break;
-            case TAG_COMMENT:
-                if (content != null) {
-                    markerType = content.trim();
-                }
-                break;
-            case TAG_EXTENSION_SPEED:
-                if (content != null) {
-                    speed = content.trim();
-                }
-                break;
-            case TAG_EXTENSION_HEARTRATE:
-                if (content != null) {
-                    heartrate = content.trim();
-                }
-                break;
-            case TAG_EXTENSION_CADENCE:
-                if (content != null) {
-                    cadence = content.trim();
-                }
-                break;
-            case TAG_EXTENSION_POWER:
-                if (content != null) {
-                    power = content.trim();
-                }
-                break;
-            case TAG_ID:
-                if (content != null) {
-                    uuid = content.trim();
-                }
-                break;
-            case TAG_EXTENSION_GAIN:
-                if (content != null) {
-                    gain = content.trim();
-                }
-                break;
-            case TAG_EXTENSION_LOSS:
-                if (content != null) {
-                    loss = content.trim();
-                }
-                break;
-            case TAG_EXTENSION_DISTANCE:
-                if (content != null) {
-                    distance = content.trim();
-                }
-                break;
-        }
-
-        // Reset element content
-        content = null;
-    }
-
-    @Override
-    protected void onTrackStart() throws SAXException {
-        super.onTrackStart();
-        name = null;
-        description = null;
-        category = null;
-    }
-
-    /**
-     * On track point start.
-     *
-     * @param attributes the attributes
-     */
-    private void onTrackPointStart(Attributes attributes) {
-        latitude = attributes.getValue(ATTRIBUTE_LAT);
-        longitude = attributes.getValue(ATTRIBUTE_LON);
-        altitude = null;
-        time = null;
-        speed = null;
-        power = null;
-        gain = null;
-        loss = null;
-    }
-
-    private void onTrackPointEnd() {
-        boolean isFirstTrackPointInSegment = isFirstTrackPointInSegment();
-        TrackPoint trackPoint = getTrackPoint();
-        if (isFirstTrackPointInSegment) {
-            trackPoint.setType(TrackPoint.Type.SEGMENT_START_AUTOMATIC);
-        }
-        insertTrackPoint(trackPoint);
-    }
-
-    private void onMarkerStart(Attributes attributes) {
-        name = null;
-        description = null;
-        category = null;
-        photoUrl = null;
-        latitude = attributes.getValue(ATTRIBUTE_LAT);
-        longitude = attributes.getValue(ATTRIBUTE_LON);
-        altitude = null;
-        time = null;
-        markerType = null;
-    }
-
-    private void onMarkerEnd() {
-        addMarker();
-    }
-}

src/main/java/de/dennisguse/opentracks/io/file/importer/GpxTrackImporter.java

@@ -0,0 +1,417 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package de.dennisguse.opentracks.io.file.importer;
+
+import android.content.Context;
+import android.util.Log;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.Locator;
+import org.xml.sax.SAXException;
+import org.xml.sax.helpers.DefaultHandler;
+
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Locale;
+
+import de.dennisguse.opentracks.content.data.Altitude;
+import de.dennisguse.opentracks.content.data.Distance;
+import de.dennisguse.opentracks.content.data.Marker;
+import de.dennisguse.opentracks.content.data.Speed;
+import de.dennisguse.opentracks.content.data.Track;
+import de.dennisguse.opentracks.content.data.TrackPoint;
+import de.dennisguse.opentracks.util.StringUtils;
+
+/**
+ * Imports a GPX file.
+ * Uses:
+ * * https://www8.garmin.com/xmlschemas/TrackPointExtensionv2.xsd
+ * * https://www8.garmin.com/xmlschemas/PowerExtensionv1.xsd
+ * <p>
+ * {@link de.dennisguse.opentracks.io.file.exporter.GPXTrackExporter} does not export information if a segment was started automatic or manually.
+ * Therefore, all segments starts are marked as SEGMENT_START_AUTOMATIC.
+ * Thus, the {@link de.dennisguse.opentracks.stats.TrackStatistics} cannot be restored correctly.
+ *
+ * @author Jimmy Shih
+ */
+public class GpxTrackImporter extends DefaultHandler implements XMLImporter.TrackParser {
+
+    private static final String TAG = GpxTrackImporter.class.getSimpleName();
+
+    private static final String TAG_DESCRIPTION = "desc";
+    private static final String TAG_COMMENT = "cmt";
+    private static final String TAG_ALTITUDE = "ele";
+    private static final String TAG_GPX = "gpx";
+    private static final String TAG_NAME = "name";
+    private static final String TAG_TIME = "time";
+    private static final String TAG_TRACK = "trk";
+    private static final String TAG_TRACK_POINT = "trkpt";
+    private static final String TAG_TRACK_SEGMENT = "trkseg";
+    private static final String TAG_TYPE = "type";
+    private static final String TAG_MARKER = "wpt";
+    private static final String TAG_ID = "opentracks:trackid";
+
+    private static final String ATTRIBUTE_LAT = "lat";
+    private static final String ATTRIBUTE_LON = "lon";
+
+    private static final String TAG_EXTENSION_SPEED = "gpxtpx:speed";
+    private static final String TAG_EXTENSION_HEARTRATE = "gpxtpx:hr";
+    private static final String TAG_EXTENSION_CADENCE = "gpxtpx:cad";
+    private static final String TAG_EXTENSION_POWER = "pwr:PowerInWatts";
+
+    private static final String TAG_EXTENSION_GAIN = "opentracks:gain";
+    private static final String TAG_EXTENSION_LOSS = "opentracks:loss";
+    private static final String TAG_EXTENSION_DISTANCE = "opentracks:distance";
+
+    private Locator locator;
+
+    private final Context context;
+
+    // Belongs to the current track
+    private final ArrayList<Marker> markers = new ArrayList<>();
+
+    // The current element content
+    private String content = "";
+
+    private String name;
+    private String description;
+    private String category;
+    private String latitude;
+    private String longitude;
+    private String altitude;
+    private String time;
+    private String speed;
+    private String heartrate;
+    private String cadence;
+    private String power;
+    protected String markerType;
+    protected String photoUrl;
+    protected String uuid;
+    protected String gain;
+    protected String loss;
+    protected String distance;
+
+    private final LinkedList<TrackPoint> currentSegment = new LinkedList<>();
+
+    private final TrackImporter trackImporter;
+
+    public GpxTrackImporter(Context context, TrackImporter trackImporter) {
+        this.context = context;
+        this.trackImporter = trackImporter;
+    }
+
+    @Override
+    public void setDocumentLocator(Locator locator) {
+        this.locator = locator;
+    }
+
+    @Override
+    public void startElement(String uri, String localName, String tag, Attributes attributes) throws SAXException {
+        switch (tag) {
+            case TAG_MARKER:
+                onMarkerStart(attributes);
+                break;
+            case TAG_TRACK:
+                trackImporter.newTrack();
+                break;
+            case TAG_TRACK_SEGMENT:
+                onTrackSegmentStart();
+                break;
+            case TAG_TRACK_POINT:
+                onTrackPointStart(attributes);
+                break;
+        }
+    }
+
+    @Override
+    public void characters(char[] ch, int start, int length) {
+        content += new String(ch, start, length);
+    }
+
+    @Override
+    public void endElement(String uri, String localName, String tag) {
+        switch (tag) {
+            case TAG_GPX:
+                onFileEnd();
+                break;
+            case TAG_MARKER:
+                onMarkerEnd();
+                break;
+            case TAG_TRACK:
+                trackImporter.setTrack(context, name, uuid, description, category, null);
+                break;
+            case TAG_TRACK_SEGMENT:
+                onTrackSegmentEnd();
+                break;
+            case TAG_TRACK_POINT:
+                currentSegment.add(createTrackPoint());
+                break;
+            case TAG_NAME:
+                if (content != null) {
+                    name = content.trim();
+                }
+                break;
+            case TAG_DESCRIPTION:
+                if (content != null) {
+                    description = content.trim();
+                }
+                break;
+            case TAG_TYPE:
+                if (content != null) {
+                    category = content.trim();
+                }
+                break;
+            case TAG_TIME:
+                if (content != null) {
+                    time = content.trim();
+                }
+                break;
+            case TAG_ALTITUDE:
+                if (content != null) {
+                    altitude = content.trim();
+                }
+                break;
+            case TAG_COMMENT:
+                if (content != null) {
+                    markerType = content.trim();
+                }
+                break;
+            case TAG_EXTENSION_SPEED:
+                if (content != null) {
+                    speed = content.trim();
+                }
+                break;
+            case TAG_EXTENSION_HEARTRATE:
+                if (content != null) {
+                    heartrate = content.trim();
+                }
+                break;
+            case TAG_EXTENSION_CADENCE:
+                if (content != null) {
+                    cadence = content.trim();
+                }
+                break;
+            case TAG_EXTENSION_POWER:
+                if (content != null) {
+                    power = content.trim();
+                }
+                break;
+            case TAG_ID:
+                if (content != null) {
+                    uuid = content.trim();
+                }
+                break;
+            case TAG_EXTENSION_GAIN:
+                if (content != null) {
+                    gain = content.trim();
+                }
+                break;
+            case TAG_EXTENSION_LOSS:
+                if (content != null) {
+                    loss = content.trim();
+                }
+                break;
+            case TAG_EXTENSION_DISTANCE:
+                if (content != null) {
+                    distance = content.trim();
+                }
+                break;
+        }
+
+        content = "";
+    }
+
+    private void onTrackSegmentStart() {
+    }
+
+    private void onTrackSegmentEnd() {
+        if (currentSegment.isEmpty()) {
+            Log.w(TAG, "No locations in current segment.");
+            return;
+        }
+
+        TrackPoint first = currentSegment.getFirst();
+        first.setType(TrackPoint.Type.SEGMENT_START_AUTOMATIC);
+
+        trackImporter.addTrackPoints(currentSegment);
+        currentSegment.clear();
+    }
+
+
+    private TrackPoint createTrackPoint() throws ParsingException {
+        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.TRACKPOINT);
+
+        try {
+            trackPoint.setTime(StringUtils.parseTime(time));
+        } catch (Exception e) {
+            throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse time: %s", time)), e);
+        }
+
+        if (latitude == null || longitude == null) {
+            return trackPoint;
+        }
+
+        try {
+            trackPoint.setLatitude(Double.parseDouble(latitude));
+            trackPoint.setLongitude(Double.parseDouble(longitude));
+        } catch (NumberFormatException e) {
+            throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse latitude longitude: %s %s", latitude, longitude)), e);
+        }
+
+        if (altitude != null) {
+            try {
+                trackPoint.setAltitude(Altitude.WGS84.of(Double.parseDouble(altitude)));
+            } catch (NumberFormatException e) {
+                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse altitude: %s", altitude)), e);
+            }
+        }
+
+        if (speed != null) {
+            try {
+                trackPoint.setSpeed(Speed.of(speed));
+            } catch (NumberFormatException e) {
+                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse speed: %s", speed)), e);
+            }
+        }
+        if (heartrate != null) {
+            try {
+                trackPoint.setHeartRate_bpm(Float.parseFloat(heartrate));
+            } catch (NumberFormatException e) {
+                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse heart rate: %s", heartrate)), e);
+            }
+        }
+
+        if (cadence != null) {
+            try {
+                trackPoint.setCyclingCadence_rpm(Float.parseFloat(cadence));
+            } catch (Exception e) {
+                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse cadence: %s", cadence)), e);
+            }
+        }
+
+        if (power != null) {
+            try {
+                trackPoint.setPower(Float.parseFloat(power));
+            } catch (NumberFormatException e) {
+                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse power: %s", power)), e);
+            }
+        }
+
+        if (gain != null) {
+            try {
+                trackPoint.setAltitudeGain(Float.parseFloat(gain));
+            } catch (NumberFormatException e) {
+                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse altitude gain: %s", gain)), e);
+            }
+        }
+        if (loss != null) {
+            try {
+                trackPoint.setAltitudeLoss(Float.parseFloat(loss));
+            } catch (NumberFormatException e) {
+                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse altitude loss: %s", loss)), e);
+            }
+        }
+        if (distance != null) {
+            try {
+                trackPoint.setSensorDistance(Distance.of(distance));
+            } catch (NumberFormatException e) {
+                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse distance: %s", distance)), e);
+            }
+        }
+
+        return trackPoint;
+    }
+
+    private void onTrackPointStart(Attributes attributes) {
+        latitude = attributes.getValue(ATTRIBUTE_LAT);
+        longitude = attributes.getValue(ATTRIBUTE_LON);
+        altitude = null;
+        time = null;
+        speed = null;
+        power = null;
+        gain = null;
+        loss = null;
+    }
+
+    private void onMarkerStart(Attributes attributes) {
+        name = null;
+        description = null;
+        category = null;
+        photoUrl = null;
+        latitude = attributes.getValue(ATTRIBUTE_LAT);
+        longitude = attributes.getValue(ATTRIBUTE_LON);
+        altitude = null;
+        time = null;
+        markerType = null;
+    }
+
+    private void onMarkerEnd() {
+        // Markers must have a time, else cannot match to the track points
+        if (time == null) {
+            Log.w(TAG, "Marker without time; ignored.");
+            return;
+        }
+
+        TrackPoint trackPoint = createTrackPoint();
+
+        if (!trackPoint.hasLocation()) {
+            Log.w(TAG, "Marker with invalid coordinates ignored: " + trackPoint.getLocation());
+            return;
+        }
+        Marker marker = new Marker(null, trackPoint);
+
+        if (name != null) {
+            marker.setName(name);
+        }
+        if (description != null) {
+            marker.setDescription(description);
+        }
+        if (category != null) {
+            marker.setCategory(category);
+        }
+
+        if (photoUrl != null) {
+            marker.setPhotoUrl(photoUrl);
+        }
+        markers.add(marker);
+    }
+
+    private String createErrorMessage(String message) {
+        return String.format(Locale.US, "Parsing error at line: %d column: %d. %s", locator.getLineNumber(), locator.getColumnNumber(), message);
+    }
+
+    private void onFileEnd() {
+        trackImporter.addMarkers(markers);
+        trackImporter.finish();
+    }
+
+    @Override
+    public DefaultHandler getHandler() {
+        return this;
+    }
+
+    @Override
+    public List<Track.Id> getImportTrackIds() {
+        return trackImporter.getTrackIds();
+    }
+
+    @Override
+    public void cleanImport() {
+        trackImporter.cleanImport();
+    }
+}

src/main/java/de/dennisguse/opentracks/io/file/importer/ImportService.java

@@ -3,6 +3,7 @@ package de.dennisguse.opentracks.io.file.importer;
 import android.app.job.JobService;
 import android.content.Context;
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.ResultReceiver;
@@ -13,13 +14,15 @@ import androidx.core.app.JobIntentService;
 import androidx.documentfile.provider.DocumentFile;
 
 import java.io.IOException;
-import java.io.InputStream;
 import java.util.ArrayList;
 
 import de.dennisguse.opentracks.R;
+import de.dennisguse.opentracks.content.data.Distance;
 import de.dennisguse.opentracks.content.data.Track;
+import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
 import de.dennisguse.opentracks.io.file.TrackFileFormat;
 import de.dennisguse.opentracks.util.FileUtils;
+import de.dennisguse.opentracks.util.PreferencesUtils;
 
 public class ImportService extends JobIntentService {
 
@@ -47,23 +50,28 @@ public class ImportService extends JobIntentService {
     }
 
     private void importFile(DocumentFile file) {
-        TrackImporter trackImporter;
+        ArrayList<Track.Id> trackIds = new ArrayList<>();
+
         String fileExtension = FileUtils.getExtension(file);
+        try {
+            SharedPreferences sharedPreferences = PreferencesUtils.getSharedPreferences(this);
+            Distance maxRecordingDistance = PreferencesUtils.getMaxRecordingDistance(sharedPreferences, this);
+            Distance recordingDistanceInterval = PreferencesUtils.getRecordingDistanceInterval(sharedPreferences, this);
+            boolean preventReimport = PreferencesUtils.getPreventReimportTracks(sharedPreferences, this);
 
-        if (TrackFileFormat.GPX.getExtension().equals(fileExtension)) {
-            trackImporter = new GpxFileTrackImporter(this);
-        } else if (TrackFileFormat.KML_WITH_TRACKDETAIL_AND_SENSORDATA.getExtension().equals(fileExtension)) {
-            trackImporter = new KmlFileTrackImporter(this);
-        } else if (TrackFileFormat.KMZ_WITH_TRACKDETAIL_AND_SENSORDATA_AND_PICTURES.getExtension().equals(fileExtension)) {
-            trackImporter = new KmzTrackImporter(this, file.getUri());
-        } else {
-            Log.d(TAG, "Unsupported file format.");
-            sendResult(ImportServiceResultReceiver.RESULT_CODE_ERROR, null, file, getString(R.string.import_unsupported_format));
-            return;
-        }
+            TrackImporter trackImporter = new TrackImporter(this, new ContentProviderUtils(this), recordingDistanceInterval, maxRecordingDistance, preventReimport);
 
-        try (InputStream inputStream = getContentResolver().openInputStream(file.getUri())) {
-            ArrayList<Track.Id> trackIds = new ArrayList<>(trackImporter.importFile(inputStream));
+            if (TrackFileFormat.GPX.getExtension().equals(fileExtension)) {
+                trackIds.addAll(new XMLImporter(new GpxTrackImporter(this, trackImporter)).importFile(this, file.getUri()));
+            } else if (TrackFileFormat.KML_WITH_TRACKDETAIL_AND_SENSORDATA.getExtension().equals(fileExtension)) {
+                trackIds.addAll(new XMLImporter(new KmlTrackImporter(this, trackImporter)).importFile(this, file.getUri()));
+            } else if (TrackFileFormat.KMZ_WITH_TRACKDETAIL_AND_SENSORDATA_AND_PICTURES.getExtension().equals(fileExtension)) {
+                trackIds.addAll(new KmzTrackImporter(this, trackImporter).importFile(file.getUri()));
+            } else {
+                Log.d(TAG, "Unsupported file format.");
+                sendResult(ImportServiceResultReceiver.RESULT_CODE_ERROR, null, file, getString(R.string.import_unsupported_format));
+                return;
+            }
 
             if (!trackIds.isEmpty()) {
                 sendResult(ImportServiceResultReceiver.RESULT_CODE_IMPORTED, trackIds, file, getString(R.string.import_file_imported, file.getName()));

src/main/java/de/dennisguse/opentracks/io/file/importer/KmlTrackImporter.java

@@ -17,30 +17,35 @@
 package de.dennisguse.opentracks.io.file.importer;
 
 import android.content.Context;
+import android.location.Location;
 import android.util.Log;
 
-import androidx.annotation.VisibleForTesting;
-
 import org.xml.sax.Attributes;
+import org.xml.sax.Locator;
 import org.xml.sax.SAXException;
+import org.xml.sax.helpers.DefaultHandler;
 
+import java.time.Instant;
 import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
 
 import de.dennisguse.opentracks.content.data.Distance;
+import de.dennisguse.opentracks.content.data.Marker;
 import de.dennisguse.opentracks.content.data.Speed;
+import de.dennisguse.opentracks.content.data.Track;
 import de.dennisguse.opentracks.content.data.TrackPoint;
-import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
 import de.dennisguse.opentracks.io.file.exporter.KMLTrackExporter;
+import de.dennisguse.opentracks.util.StringUtils;
 
 /**
  * Imports a KML file.
  *
  * @author Jimmy Shih
  */
-//TODO Do not use AbstractFileTrackImporter as TrackPoint sensor generation is done differently here.
-public class KmlFileTrackImporter extends AbstractFileTrackImporter {
+public class KmlTrackImporter extends DefaultHandler implements XMLImporter.TrackParser {
 
-    private static final String TAG = KmlFileTrackImporter.class.getSimpleName();
+    private static final String TAG = KmlTrackImporter.class.getSimpleName();
 
     private static final String MARKER_STYLE = "#" + KMLTrackExporter.MARKER_STYLE;
 
@@ -64,24 +69,49 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
 
     private static final String ATTRIBUTE_NAME = "name";
 
-    private boolean trackStarted = false;
+    private Locator locator;
+
+    private final Context context;
+
+    // Belongs to the current track
+    private final ArrayList<Instant> whenList = new ArrayList<>();
+    private final ArrayList<Location> locationList = new ArrayList<>();
+
     private String extendedDataType;
-    private final ArrayList<TrackPoint> trackPoints = new ArrayList<>();
-    private final ArrayList<Float> speedList = new ArrayList<>();
-    private final ArrayList<Float> distanceList = new ArrayList<>();
-    private final ArrayList<Float> cadenceList = new ArrayList<>();
-    private final ArrayList<Float> heartRateList = new ArrayList<>();
-    private final ArrayList<Float> powerList = new ArrayList<>();
+    private final ArrayList<Float> sensorSpeedList = new ArrayList<>();
+    private final ArrayList<Float> sensorDistanceList = new ArrayList<>();
+    private final ArrayList<Float> sensorCadenceList = new ArrayList<>();
+    private final ArrayList<Float> sensorHeartRateList = new ArrayList<>();
+    private final ArrayList<Float> sensorPowerList = new ArrayList<>();
     private final ArrayList<Float> altitudeGainList = new ArrayList<>();
     private final ArrayList<Float> altitudeLossList = new ArrayList<>();
 
-    public KmlFileTrackImporter(Context context) {
-        this(context, new ContentProviderUtils(context));
+    private final ArrayList<Marker> markers = new ArrayList<>();
+
+    // The current element content
+    private String content = "";
+
+    private String icon;
+    private String name;
+    private String description;
+    private String category;
+    private String latitude;
+    private String longitude;
+    private String altitude;
+    private String markerType;
+    private String photoUrl;
+    private String uuid;
+
+    private final TrackImporter trackImporter;
+
+    public KmlTrackImporter(Context context, TrackImporter trackImporter) {
+        this.context = context;
+        this.trackImporter = trackImporter;
     }
 
-    @VisibleForTesting
-    KmlFileTrackImporter(Context context, ContentProviderUtils contentProviderUtils) {
-        super(context, contentProviderUtils);
+    @Override
+    public void setDocumentLocator(Locator locator) {
+        this.locator = locator;
     }
 
     @Override
@@ -93,11 +123,10 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
                 onMarkerStart();
                 break;
             case TAG_GX_MULTI_TRACK:
-                trackStarted = true;
-                onTrackStart();
+                trackImporter.newTrack();
                 break;
             case TAG_GX_TRACK:
-                if (!trackStarted) {
+                if (trackImporter == null) {
                     throw new SAXException("No " + TAG_GX_MULTI_TRACK);
                 }
                 onTrackSegmentStart();
@@ -108,6 +137,11 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
         }
     }
 
+    @Override
+    public void characters(char[] ch, int start, int length) {
+        content += new String(ch, start, length);
+    }
+
     @Override
     public void endElement(String uri, String localName, String tag) throws SAXException {
         switch (tag) {
@@ -123,13 +157,13 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
                 onMarkerLocationEnd();
                 break;
             case TAG_GX_MULTI_TRACK:
-                onTrackEnd();
+                trackImporter.setTrack(context, name, uuid, description, category, icon);
                 break;
             case TAG_GX_TRACK:
                 onTrackSegmentEnd();
                 break;
             case TAG_GX_COORD:
-                onTrackPointEnd();
+                onCoordEnded();
                 break;
             case TAG_GX_VALUE:
                 onExtendedDataValueEnd();
@@ -161,7 +195,7 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
                 break;
             case TAG_WHEN:
                 if (content != null) {
-                    time = content.trim();
+                    whenList.add(StringUtils.parseTime(content.trim()));
                 }
 
                 break;
@@ -178,7 +212,7 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
         }
 
         // Reset element content
-        content = null;
+        content = "";
     }
 
     private void onMarkerStart() {
@@ -191,7 +225,6 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
         latitude = null;
         longitude = null;
         altitude = null;
-        time = null;
         markerType = null;
     }
 
@@ -199,7 +232,30 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
         if (!MARKER_STYLE.equals(markerType)) {
             return;
         }
-        addMarker();
+
+        if (whenList.size() != 1) {
+            Log.w(TAG, "Marker without time ignored.");
+            return;
+        }
+
+        Location location = createLocation(longitude, latitude, altitude);
+        if (location == null) {
+            Log.w(TAG, "Marker with invalid coordinates ignored: " + location);
+            return;
+        }
+
+        Marker marker = new Marker(null, new TrackPoint(TrackPoint.Type.TRACKPOINT, location, whenList.get(0))); //TODO Creating marker without need
+        marker.setName(name != null ? name : "");
+        marker.setDescription(description != null ? description : "");
+        marker.setCategory(category != null ? category : "");
+        marker.setPhotoUrl(photoUrl);
+        markers.add(marker);
+
+        name = null;
+        description = null;
+        category = null;
+        photoUrl = null;
+        whenList.clear();
     }
 
     private void onMarkerLocationEnd() {
@@ -214,39 +270,56 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
         }
     }
 
-    @Override
-    protected void onTrackSegmentStart() {
-        super.onTrackSegmentStart();
-        trackPoints.clear();
-        speedList.clear();
-        distanceList.clear();
-        heartRateList.clear();
-        cadenceList.clear();
-        powerList.clear();
+    private void onTrackSegmentStart() {
+        locationList.clear();
+        whenList.clear();
+
+        sensorSpeedList.clear();
+        sensorDistanceList.clear();
+        sensorHeartRateList.clear();
+        sensorCadenceList.clear();
+        sensorPowerList.clear();
         altitudeGainList.clear();
         altitudeLossList.clear();
     }
 
-    protected void onTrackSegmentEnd() {
-        super.onTrackSegmentEnd();
-        // Close a track segment by inserting the segment locations
-        for (int i = 0; i < trackPoints.size(); i++) {
-            TrackPoint trackPoint = trackPoints.get(i);
+    private void onTrackSegmentEnd() {
+        if (locationList.size() != whenList.size()) {
+            throw new ImportParserException("<coords> and <when> should have the same count.");
+        }
 
-            if (i < speedList.size() && speedList.get(i) != null) {
-                trackPoint.setSpeed(Speed.of(speedList.get(i)));
+        // Close a track segment by inserting the segment locations
+        for (int i = 0; i < locationList.size(); i++) {
+            Instant time = whenList.get(i);
+            Location location = locationList.get(i);
+
+            TrackPoint trackPoint;
+            if (i == 0) {
+                if (location == null) {
+                    trackPoint = TrackPoint.createSegmentStartManualWithTime(time);
+                } else {
+                    trackPoint = new TrackPoint(TrackPoint.Type.SEGMENT_START_AUTOMATIC, location, time);
+                }
+            } else if (i == locationList.size() - 1 && location == null) {
+                trackPoint = TrackPoint.createSegmentEndWithTime(time);
+            } else {
+                trackPoint = new TrackPoint(TrackPoint.Type.TRACKPOINT, location, time);
             }
-            if (i < distanceList.size() && distanceList.get(i) != null) {
-                trackPoint.setSensorDistance(Distance.of(distanceList.get(i)));
+
+            if (i < sensorSpeedList.size() && sensorSpeedList.get(i) != null) {
+                trackPoint.setSpeed(Speed.of(sensorSpeedList.get(i)));
             }
-            if (i < heartRateList.size()) {
-                trackPoint.setHeartRate_bpm(heartRateList.get(i));
+            if (i < sensorDistanceList.size() && sensorDistanceList.get(i) != null) {
+                trackPoint.setSensorDistance(Distance.of(sensorDistanceList.get(i)));
             }
-            if (i < cadenceList.size()) {
-                trackPoint.setCyclingCadence_rpm(cadenceList.get(i));
+            if (i < sensorHeartRateList.size()) {
+                trackPoint.setHeartRate_bpm(sensorHeartRateList.get(i));
             }
-            if (i < powerList.size()) {
-                trackPoint.setPower(powerList.get(i));
+            if (i < sensorCadenceList.size()) {
+                trackPoint.setCyclingCadence_rpm(sensorCadenceList.get(i));
+            }
+            if (i < sensorPowerList.size()) {
+                trackPoint.setPower(sensorPowerList.get(i));
             }
             if (i < altitudeGainList.size()) {
                 trackPoint.setAltitudeGain(altitudeGainList.get(i));
@@ -255,18 +328,11 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
                 trackPoint.setAltitudeLoss(altitudeLossList.get(i));
             }
 
-            insertTrackPoint(trackPoint);
+            trackImporter.addTrackPoint(trackPoint);
         }
     }
 
-    /**
-     * On track point end. gx:coord end tag.
-     */
-    private void onTrackPointEnd() {
-        // Add trackPoint to trackPoints
-        if (content == null) {
-            return;
-        }
+    private void onCoordEnded() {
         String[] parts = content.trim().split(" ");
         if (parts.length == 2 || parts.length == 3) {
             longitude = parts[0];
@@ -274,33 +340,41 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
             altitude = parts.length == 3 ? parts[2] : null;
         }
 
-        // Similar to GPX
-        boolean isFirstTrackPointInSegment = isFirstTrackPointInSegment();
-        TrackPoint trackPoint = getTrackPoint();
-        if (isFirstTrackPointInSegment) {
-            TrackPoint.Type type = !trackPoint.hasLocation() ? TrackPoint.Type.SEGMENT_START_MANUAL : TrackPoint.Type.SEGMENT_START_AUTOMATIC;
+        locationList.add(createLocation(longitude, latitude, altitude));
 
-            trackPoint.setType(type);
-        }
-        trackPoints.add(trackPoint);
-
-        // Reset variables for next trackpoint (which might not have such data).
-        time = null;
         longitude = null;
         latitude = null;
         altitude = null;
     }
 
-    /**
-     * On extended data start. gx:SimpleArrayData start tag.
-     */
+    private Location createLocation(String longitude, String latitude, String altitude) {
+        Location location = null;
+        if (longitude != null || latitude != null) {
+            location = new Location("import");
+
+            try {
+                location.setLatitude(Double.parseDouble(latitude));
+                location.setLongitude(Double.parseDouble(longitude));
+            } catch (NumberFormatException e) {
+                throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse latitude longitude: %s %s", latitude, longitude)), e);
+            }
+
+            if (altitude != null) {
+                try {
+                    location.setAltitude(Double.parseDouble(altitude));
+                } catch (NumberFormatException e) {
+                    throw new ParsingException(createErrorMessage(String.format(Locale.US, "Unable to parse altitude: %s", altitude)), e);
+                }
+            }
+        }
+        return location;
+    }
+
+
     private void onExtendedDataStart(Attributes attributes) {
         extendedDataType = attributes.getValue(ATTRIBUTE_NAME);
     }
 
-    /**
-     * On extended data value end. gx:value end tag.
-     */
     private void onExtendedDataValueEnd() throws SAXException {
         Float value = null;
         if (content != null) {
@@ -315,19 +389,19 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
         }
         switch (extendedDataType) {
             case KMLTrackExporter.EXTENDED_DATA_TYPE_SPEED:
-                speedList.add(value);
+                sensorSpeedList.add(value);
                 break;
             case KMLTrackExporter.EXTENDED_DATA_TYPE_DISTANCE:
-                distanceList.add(value);
+                sensorDistanceList.add(value);
                 break;
             case KMLTrackExporter.EXTENDED_DATA_TYPE_POWER:
-                powerList.add(value);
+                sensorPowerList.add(value);
                 break;
             case KMLTrackExporter.EXTENDED_DATA_TYPE_HEART_RATE:
-                heartRateList.add(value);
+                sensorHeartRateList.add(value);
                 break;
             case KMLTrackExporter.EXTENDED_DATA_TYPE_CADENCE:
-                cadenceList.add(value);
+                sensorCadenceList.add(value);
                 break;
             case KMLTrackExporter.EXTENDED_DATA_TYPE_ALTITUDE_GAIN:
                 altitudeGainList.add(value);
@@ -339,4 +413,28 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
                 Log.w(TAG, "Data from extended data " + extendedDataType + " is not (yet) supported.");
         }
     }
+
+    private String createErrorMessage(String message) {
+        return String.format(Locale.US, "Parsing error at line: %d column: %d. %s", locator.getLineNumber(), locator.getColumnNumber(), message);
+    }
+
+    private void onFileEnd() {
+        trackImporter.addMarkers(markers);
+        trackImporter.finish();
+    }
+
+    @Override
+    public DefaultHandler getHandler() {
+        return this;
+    }
+
+    @Override
+    public List<Track.Id> getImportTrackIds() {
+        return trackImporter.getTrackIds();
+    }
+
+    @Override
+    public void cleanImport() {
+        trackImporter.cleanImport();
+    }
 }

src/main/java/de/dennisguse/opentracks/io/file/importer/KmzTrackImporter.java

@@ -22,10 +22,9 @@ import android.util.Log;
 
 import androidx.annotation.NonNull;
 
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileOutputStream;
+import java.io.FilterInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.ArrayList;
@@ -46,35 +45,28 @@ import de.dennisguse.opentracks.util.FileUtils;
  *
  * @author Jimmy Shih
  */
-public class KmzTrackImporter implements TrackImporter {
+public class KmzTrackImporter {
 
     private static final String TAG = KmzTrackImporter.class.getSimpleName();
 
     private static final List<String> KMZ_IMAGES_EXT = Arrays.asList("jpeg", "jpg", "png");
 
-    private static final int BUFFER_SIZE = 4096;
-
     private final Context context;
-    private final Uri uriKmzFile;
+    private final TrackImporter trackImporter;
 
-    /**
-     * @param context the context
-     * @param uriFile URI of the kmz file.
-     */
-    public KmzTrackImporter(Context context, Uri uriFile) {
+    public KmzTrackImporter(Context context, TrackImporter trackImporter) {
         this.context = context;
-        this.uriKmzFile = uriFile;
+        this.trackImporter = trackImporter;
     }
 
-    @Override
-    public @NonNull
-    List<Track.Id> importFile(InputStream inputStream) {
-        List<Track.Id> trackIds = findAndParseKmlFile(inputStream);
+    @NonNull
+    public List<Track.Id> importFile(Uri fileUri) throws IOException {
+        List<Track.Id> trackIds = findAndParseKmlFile(fileUri);
 
-        ArrayList<Track.Id> trackIdsWithImages = new ArrayList<>();
+        List<Track.Id> trackIdsWithImages = new ArrayList<>();
 
         for (Track.Id trackId : trackIds) {
-            if (copyKmzImages(trackId)) {
+            if (copyKmzImages(fileUri, trackId)) {
                 trackIdsWithImages.add(trackId);
                 deleteOrphanImages(trackId);
             } else {
@@ -90,8 +82,8 @@ public class KmzTrackImporter implements TrackImporter {
      *
      * @return false if there are errors or true otherwise.
      */
-    private boolean copyKmzImages(Track.Id trackId) {
-        try (InputStream inputStream = context.getContentResolver().openInputStream(uriKmzFile);
+    private boolean copyKmzImages(Uri uri, Track.Id trackId) throws IOException {
+        try (InputStream inputStream = context.getContentResolver().openInputStream(uri);
              ZipInputStream zipInputStream = new ZipInputStream(inputStream)) {
             ZipEntry zipEntry;
 
@@ -110,9 +102,6 @@ public class KmzTrackImporter implements TrackImporter {
             }
 
             return true;
-        } catch (IOException e) {
-            Log.e(TAG, "Unable to import file", e);
-            return false;
         }
     }
 
@@ -154,13 +143,9 @@ public class KmzTrackImporter implements TrackImporter {
         return KMZ_IMAGES_EXT.contains(fileExt);
     }
 
-    /**
-     * Finds KmzTrackExporter.KMZ_KML_FILE file inside kmz file (inputStream) and it parses it.
-     *
-     * @param inputStream kmz input stream.
-     */
-    private List<Track.Id> findAndParseKmlFile(InputStream inputStream) {
-        try (ZipInputStream zipInputStream = new ZipInputStream(inputStream)) {
+    private List<Track.Id> findAndParseKmlFile(Uri uri) throws IOException {
+        try (InputStream inputStream = context.getContentResolver().openInputStream(uri);
+             ZipInputStream zipInputStream = new ZipInputStream(inputStream)) {
             ZipEntry zipEntry;
             ArrayList<Track.Id> trackIds = new ArrayList<>();
 
@@ -190,9 +175,6 @@ public class KmzTrackImporter implements TrackImporter {
         } catch (ImportParserException | ImportAlreadyExistsException e) {
             Log.e(TAG, "Unable to import file", e);
             throw e;
-        } catch (IOException e) {
-            Log.e(TAG, "Unable to import file", e);
-            throw new ImportParserException(e);
         }
     }
 
@@ -227,32 +209,17 @@ public class KmzTrackImporter implements TrackImporter {
         }
     }
 
-    private List<Track.Id> parseKml(ZipInputStream zipInputStream) {
-        KmlFileTrackImporter kmlFileTrackImporter = new KmlFileTrackImporter(context);
+    private List<Track.Id> parseKml(ZipInputStream zipInputStream) throws IOException {
+        XMLImporter kmlFileTrackImporter = new XMLImporter(new KmlTrackImporter(context, trackImporter));
 
-        try (ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(getKml(zipInputStream))) {
-            return kmlFileTrackImporter.importFile(byteArrayInputStream);
-        } catch (ImportParserException | ImportAlreadyExistsException e) {
-            throw e;
-        } catch (Exception e) {
-            throw new ImportParserException(e);
-        }
-    }
-
-    /**
-     * Gets the kml as byte array.
-     *
-     * @param zipInputStream the zip input stream
-     */
-    private byte[] getKml(ZipInputStream zipInputStream) throws IOException {
-        try (ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream()) {
-            byte[] buffer = new byte[BUFFER_SIZE];
-            int count;
-            while ((count = zipInputStream.read(buffer)) != -1) {
-                byteArrayOutputStream.write(buffer, 0, count);
+        InputStream nonClosableInputStream = new FilterInputStream(zipInputStream) {
+            @Override
+            public void close() {
+                // SAX2 always tries close InputStreams; but that would also close our ZIP file.
             }
-            return byteArrayOutputStream.toByteArray();
-        }
+        };
+
+        return kmlFileTrackImporter.importFile(nonClosableInputStream);
     }
 
     /**
@@ -262,6 +229,7 @@ public class KmzTrackImporter implements TrackImporter {
      * @param trackId        the track's id which image belongs to.
      * @param fileName       the file name
      */
+    @Deprecated //TODO Use JDK9's inputStream.transferTo() instead of manual buffer
     private void readAndSaveImageFile(ZipInputStream zipInputStream, Track.Id trackId, String fileName) throws IOException {
         if (trackId == null || fileName.equals("")) {
             return;
@@ -271,7 +239,7 @@ public class KmzTrackImporter implements TrackImporter {
         File file = new File(dir, fileName);
 
         try (FileOutputStream fileOutputStream = new FileOutputStream(file)) {
-            byte[] buffer = new byte[BUFFER_SIZE];
+            byte[] buffer = new byte[4096];
             int count;
             while ((count = zipInputStream.read(buffer)) != -1) {
                 fileOutputStream.write(buffer, 0, count);

src/main/java/de/dennisguse/opentracks/io/file/importer/ParsingException.java

@@ -0,0 +1,20 @@
+package de.dennisguse.opentracks.io.file.importer;
+
+import androidx.annotation.NonNull;
+
+public class ParsingException extends RuntimeException {
+
+    private ParsingException(@NonNull String message) {
+        super(message);
+    }
+
+    protected ParsingException(@NonNull String message, Exception cause) {
+        super(message, cause);
+    }
+
+    @NonNull
+    @Override
+    public String toString() {
+        return "" + getMessage();
+    }
+}

src/main/java/de/dennisguse/opentracks/io/file/importer/TrackImporter.java

@@ -1,39 +1,301 @@
-/*
- * Copyright 2013 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
 package de.dennisguse.opentracks.io.file.importer;
 
+import android.content.ContentUris;
+import android.content.Context;
+import android.net.Uri;
+import android.util.Log;
+
 import androidx.annotation.NonNull;
 
-import java.io.InputStream;
+import java.io.File;
+import java.time.Duration;
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.LinkedList;
 import java.util.List;
+import java.util.UUID;
+import java.util.stream.Collectors;
 
+import de.dennisguse.opentracks.R;
+import de.dennisguse.opentracks.content.data.Distance;
+import de.dennisguse.opentracks.content.data.Marker;
+import de.dennisguse.opentracks.content.data.Speed;
 import de.dennisguse.opentracks.content.data.Track;
+import de.dennisguse.opentracks.content.data.TrackPoint;
+import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
+import de.dennisguse.opentracks.stats.TrackStatistics;
+import de.dennisguse.opentracks.stats.TrackStatisticsUpdater;
+import de.dennisguse.opentracks.util.FileUtils;
+import de.dennisguse.opentracks.util.LocationUtils;
+import de.dennisguse.opentracks.util.TrackIconUtils;
 
 /**
- * Interface for a track importer.
- *
- * @author Jimmy Shih
+ * Handles logic to import:
+ * 1. addTrackPoints()
+ * 2. addMarkers();
+ * 3. setTrack();
+ * 4. newTrack(); //stores current track to databse
+ * 5. if needed go to 1.
+ * 6. finish()
+ * <p>
+ * NOTE: This class modifies the parameter.
+ * Do not re-use these objects anywhere else.
  */
-public interface TrackImporter {
+public class TrackImporter {
+
+    private static final String TAG = TrackImporter.class.getSimpleName();
+
+    private final Context context;
+    private final ContentProviderUtils contentProviderUtils;
+
+    private final Distance recordingDistanceInterval;
+    private final Distance maxRecordingDistance;
+    private final boolean preventReimport;
+
+    private final List<Track.Id> trackIds = new ArrayList<>();
+
+    // Current track
+    private Track track;
+    private final List<TrackPoint> trackPoints = new LinkedList<>();
+    private final List<Marker> markers = new LinkedList<>();
+
+    public TrackImporter(Context context, ContentProviderUtils contentProviderUtils, Distance recordingDistanceInterval, Distance maxRecordingDistance, boolean preventReimport) {
+        this.context = context;
+        this.contentProviderUtils = contentProviderUtils;
+        this.recordingDistanceInterval = recordingDistanceInterval;
+        this.maxRecordingDistance = maxRecordingDistance;
+        this.preventReimport = preventReimport;
+    }
+
+    void newTrack() {
+        if (track != null) {
+            finishTrack();
+        }
+
+        track = null;
+        trackPoints.clear();
+        markers.clear();
+    }
+
+    void addTrackPoint(TrackPoint trackPoint) {
+        this.trackPoints.add(trackPoint);
+    }
+
+    void addTrackPoints(List<TrackPoint> trackPoints) {
+        this.trackPoints.addAll(trackPoints);
+    }
+
+    void addMarker(Marker marker) {
+        this.markers.add(marker);
+    }
+
+    void addMarkers(List<Marker> markers) {
+        this.markers.addAll(markers);
+    }
+
+    void setTrack(Context context, String name, String uuid, String description, String category, String icon) {
+        track = new Track();
+        track.setName(name != null ? name : "");
+
+        try {
+            track.setUuid(UUID.fromString(uuid));
+        } catch (IllegalArgumentException | NullPointerException e) {
+            Log.w(TAG, "could not parse Track UUID, generating a new one.");
+            track.setUuid(UUID.randomUUID());
+        }
+
+        track.setDescription(description != null ? description : "");
+
+        if (category != null) {
+            track.setCategory(category);
+
+            if (icon == null) {
+                icon = TrackIconUtils.getIconValue(context, category);
+            }
+        }
+
+        track.setIcon(icon != null ? icon : "");
+    }
+
+    void finish() {
+        if (track != null) {
+            finishTrack();
+        }
+    }
+
+    private void finishTrack() {
+        if (trackPoints.isEmpty()) {
+            throw new ImportParserException("Cannot import track without any locations.");
+        }
+
+        // Store Track
+        if (contentProviderUtils.getTrack(track.getUuid()) != null) {
+            if (preventReimport) {
+                throw new ImportAlreadyExistsException(context.getString(R.string.import_prevent_reimport));
+            }
+
+            //TODO This is a workaround until we have proper UI.
+            track.setUuid(UUID.randomUUID());
+        }
+
+        Collections.sort(trackPoints, new Comparator<TrackPoint>() {
+            @Override
+            public int compare(TrackPoint o1, TrackPoint o2) {
+                if (o1.getTime().isBefore(o2.getTime())) {
+                    return -1;
+                }
+                if (o1.getTime().isAfter(o2.getTime())) {
+                    return 1;
+                }
+                return 0;
+            }
+        });
+
+        TrackStatisticsUpdater updater = new TrackStatisticsUpdater();
+        updater.addTrackPoints(trackPoints, recordingDistanceInterval);
+        track.setTrackStatistics(updater.getTrackStatistics());
+
+        Uri trackUri = contentProviderUtils.insertTrack(track);
+        Track.Id trackId = new Track.Id(ContentUris.parseId(trackUri));
+
+        // Store TrackPoints
+        adjustTrackPoints();
+        contentProviderUtils.bulkInsertTrackPoint(trackPoints, trackId);
+
+        // Store Markers
+        matchMarkers2TrackPoints(trackId);
+        for (Marker marker : markers)
+            marker.setTrackId(trackId); //TODO Should happen in bulkInsertMarkers
+
+        contentProviderUtils.bulkInsertMarkers(markers, trackId);
+
+        //Clear up.
+        trackPoints.clear();
+        markers.clear();
+
+        trackIds.add(trackId);
+    }
 
     /**
-     * Import a file.
-     *
-     * @param inputStream the file's input stream
+     * If not present: calculate data from the previous trackPoint (if present)
+     * NOTE: Modifies content of trackPoints.
      */
-    @NonNull
-    List<Track.Id> importFile(InputStream inputStream) throws ImportParserException;
+    private void adjustTrackPoints() {
+        for (int i = 0; i < trackPoints.size(); i++) {
+            TrackPoint current = trackPoints.get(i);
+
+            if (current.hasLocation()) {
+                Instant time = current.getTime();
+                if (current.getLatitude() == 100) {
+                    //TODO Remove by 31st December 2021.
+                    trackPoints.set(i, new TrackPoint(TrackPoint.Type.SEGMENT_END_MANUAL, time));
+                } else if (current.getLatitude() == 200) {
+                    //TODO Remove by 31st December 2021.
+                    trackPoints.set(i, new TrackPoint(TrackPoint.Type.SEGMENT_START_MANUAL, time));
+                    //TODO Delete location
+                } else if (!LocationUtils.isValidLocation(current.getLocation())) {
+                    throw new ImportParserException("Invalid location detected: " + current);
+                }
+            }
+        }
+
+        for (int i = 1; i < trackPoints.size(); i++) {
+            TrackPoint previous = trackPoints.get(i - 1);
+            TrackPoint current = trackPoints.get(i);
+
+            Distance distanceToPrevious = current.distanceToPrevious(previous);
+            if (distanceToPrevious != null) {
+                if (!current.hasSpeed()) {
+                    Duration timeDifference = Duration.between(previous.getTime(), current.getTime());
+                    current.setSpeed(Speed.of(distanceToPrevious, timeDifference));
+                }
+
+                if (!current.hasBearing()) {
+                    current.setBearing(previous.bearingTo(current));
+                }
+
+                if (current.getType().equals(TrackPoint.Type.TRACKPOINT) && distanceToPrevious.greaterThan(maxRecordingDistance)) {
+                    current.setType(TrackPoint.Type.SEGMENT_START_AUTOMATIC);
+                }
+            }
+        }
+    }
+
+    /**
+     * NOTE: Modifies content of markers (incl. removal).
+     */
+    private void matchMarkers2TrackPoints(Track.Id trackId) {
+        List<TrackPoint> trackPointsWithLocation = trackPoints.stream()
+                .filter(TrackPoint::hasLocation)
+                .collect(Collectors.toList());
+
+        List<Marker> todoMarkers = new LinkedList<>(markers);
+        List<Marker> doneMarkers = new LinkedList<>();
+
+        for (final TrackPoint trackPoint : trackPointsWithLocation) {
+            if (todoMarkers.isEmpty()) {
+                break;
+            }
+
+            TrackStatisticsUpdater updater = new TrackStatisticsUpdater();
+            updater.addTrackPoint(trackPoint, recordingDistanceInterval);
+
+            List<Marker> matchedMarkers = todoMarkers.stream()
+                    .filter(it -> trackPoint.getLatitude() == it.getLatitude()
+                            && trackPoint.getLongitude() == it.getLongitude()
+                            && trackPoint.getTime().equals(it.getTime())
+                    )
+                    .collect(Collectors.toList());
+
+            TrackStatistics statistics = updater.getTrackStatistics();
+            for (Marker marker : matchedMarkers) {
+                if (marker.hasPhoto()) {
+                    marker.setPhotoUrl(getInternalPhotoUrl(trackId, marker.getPhotoUrl()));
+                }
+
+                marker.setIcon(context.getString(R.string.marker_icon_url)); //TODO Why?
+
+                marker.setLength(statistics.getTotalDistance());
+                marker.setDuration(statistics.getTotalTime());
+
+                marker.setTrackPoint(trackPoint);
+            }
+
+            todoMarkers.removeAll(matchedMarkers);
+            doneMarkers.addAll(matchedMarkers);
+        }
+
+        if (todoMarkers.isEmpty()) {
+            Log.w(TAG, "Some markers could not be attached to TrackPoints; those are not imported.");
+        }
+
+        markers.clear();
+        markers.addAll(doneMarkers);
+    }
+
+    /**
+     * Gets the photo url for a file.
+     *
+     * @param externalPhotoUrl the file name
+     */
+    private String getInternalPhotoUrl(@NonNull Track.Id trackId, @NonNull String externalPhotoUrl) {
+        String importFileName = KmzTrackImporter.importNameForFilename(externalPhotoUrl);
+        File file = FileUtils.buildInternalPhotoFile(context, trackId, Uri.parse(importFileName));
+        if (file != null) {
+            Uri photoUri = FileUtils.getUriForFile(context, file);
+            return "" + photoUri;
+        }
+
+        return null;
+    }
+
+    public List<Track.Id> getTrackIds() {
+        return Collections.unmodifiableList(trackIds);
+    }
+
+    public void cleanImport() {
+        contentProviderUtils.deleteTracks(context, trackIds);
+    }
 }

src/main/java/de/dennisguse/opentracks/io/file/importer/XMLImporter.java

@@ -0,0 +1,68 @@
+package de.dennisguse.opentracks.io.file.importer;
+
+import android.content.Context;
+import android.database.sqlite.SQLiteConstraintException;
+import android.net.Uri;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+
+import org.xml.sax.SAXException;
+import org.xml.sax.helpers.DefaultHandler;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.parsers.SAXParserFactory;
+
+import de.dennisguse.opentracks.content.data.Track;
+
+/**
+ * Uses SAX2 to parse XML files.
+ * <p>
+ * NOTE: SAX2 always closes InputStreams after processing.
+ */
+public class XMLImporter {
+
+    private static final String TAG = XMLImporter.class.getSimpleName();
+
+    private final TrackParser parser;
+
+    public XMLImporter(TrackParser parser) {
+        this.parser = parser;
+    }
+
+    @NonNull
+    public List<Track.Id> importFile(Context context, Uri uri) throws ImportParserException, ImportAlreadyExistsException, IOException {
+        try (InputStream inputStream = context.getContentResolver().openInputStream(uri)) {
+            return importFile(inputStream);
+        }
+    }
+
+    public List<Track.Id> importFile(InputStream inputStream) throws ImportParserException, ImportAlreadyExistsException, IOException {
+        try {
+            SAXParserFactory.newInstance().newSAXParser().parse(inputStream, parser.getHandler());
+            return parser.getImportTrackIds();
+        } catch (SAXException | ParserConfigurationException | ParsingException e) {
+            Log.e(TAG, "Unable to import file", e);
+            if (parser.getImportTrackIds().size() > 0) {
+                parser.cleanImport();
+            }
+            throw new ImportParserException(e);
+        } catch (SQLiteConstraintException e) {
+            Log.e(TAG, "Unable to import file", e);
+            throw new ImportAlreadyExistsException(e);
+        }
+    }
+
+    interface TrackParser {
+        @Deprecated
+        DefaultHandler getHandler();
+
+        List<Track.Id> getImportTrackIds();
+
+        void cleanImport();
+    }
+}

src/main/java/de/dennisguse/opentracks/services/TrackDeleteService.java

@@ -0,0 +1,171 @@
+package de.dennisguse.opentracks.services;
+
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.app.Service;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Build;
+import android.os.IBinder;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.core.app.NotificationCompat;
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+
+import java.util.ArrayList;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+import de.dennisguse.opentracks.R;
+import de.dennisguse.opentracks.content.data.Track;
+import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
+
+public class TrackDeleteService extends Service {
+
+    private static final String CHANNEL_ID = TrackDeleteService.class.getSimpleName();
+    private static final int NOTIFICATION_ID = 1;
+
+    static final String EXTRA_TRACK_IDS = "extra_track_ids";
+
+    private final Binder binder = new Binder();
+    private ExecutorService serviceExecutor;
+    private MutableLiveData<DeleteStatus> deleteResultObservable;
+    private NotificationManager notificationManager;
+    private NotificationCompat.Builder notificationBuilder;
+
+    @Override
+    public void onCreate() {
+        serviceExecutor = Executors.newSingleThreadExecutor();
+        deleteResultObservable = new MutableLiveData<>();
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        if (serviceExecutor != null) {
+            serviceExecutor.shutdownNow();
+            serviceExecutor = null;
+        }
+        deleteResultObservable = null;
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        ArrayList<Track.Id> trackIds = intent.getParcelableArrayListExtra(EXTRA_TRACK_IDS);
+        createAndShowNotification(trackIds.size());
+        deleteTracks(trackIds);
+        return START_NOT_STICKY;
+    }
+
+    private void deleteTracks(@NonNull ArrayList<Track.Id> trackIds) {
+        sendResult(null,0, trackIds.size());
+        serviceExecutor.execute(() -> {
+            ContentProviderUtils contentProviderUtils = new ContentProviderUtils(this);
+            for (int i = 0; i < trackIds.size(); i++) {
+                updateNotification(i + 1, trackIds.size());
+                contentProviderUtils.deleteTrack(this, trackIds.get(i));
+                sendResult(trackIds.get(i), i + 1, trackIds.size());
+            }
+            stopSelf();
+        });
+    }
+
+    private void sendResult(Track.Id trackId, int deletes, int total) {
+        if (deleteResultObservable != null) {
+            deleteResultObservable.postValue(new DeleteStatus(trackId, deletes, total));
+        }
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return binder;
+    }
+
+    public LiveData<DeleteStatus> getDeletingStatusObservable() {
+        return deleteResultObservable;
+    }
+
+    /**
+     * Starts and shows the notification.
+     *
+     * @param tracksToDelete number of tracks to be deleted.
+     */
+    private void createAndShowNotification(int tracksToDelete) {
+        notificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            NotificationChannel notificationChannel = new NotificationChannel(CHANNEL_ID, this.getString(R.string.app_name), NotificationManager.IMPORTANCE_LOW);
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+                notificationChannel.setAllowBubbles(true);
+            }
+
+            notificationManager.createNotificationChannel(notificationChannel);
+        }
+
+        notificationBuilder = new NotificationCompat.Builder(this, CHANNEL_ID);
+        notificationBuilder
+                .setContentTitle(this.getString(R.string.track_delete_progress_message))
+                .setContentText(this.getString(R.string.track_delete_progress, 0, tracksToDelete))
+                .setSmallIcon(R.drawable.ic_logo_color_24dp)
+                .setProgress(tracksToDelete, 0, false);
+
+        startForeground(NOTIFICATION_ID, notificationBuilder.build());
+    }
+
+    /**
+     * Updates notification progress.
+     *
+     * @param progress number of tracks already deleted.
+     * @param total    total of tracks to be deleted.
+     */
+    private void updateNotification(int progress, int total) {
+        notificationBuilder.setProgress(total, progress, false);
+        notificationBuilder.setContentText(this.getString(R.string.track_delete_progress, progress, total));
+        notificationManager.notify(NOTIFICATION_ID, notificationBuilder.build());
+    }
+
+    public class Binder extends android.os.Binder {
+
+        private Binder() {
+            super();
+        }
+
+        public TrackDeleteService getService() {
+            return TrackDeleteService.this;
+        }
+    }
+
+    public static class DeleteStatus {
+        private int progress;
+        private int max;
+        private Track.Id trackId;
+
+        /**
+         * @param trackId  Track.Id just deleted if any.
+         * @param progress number of deletes.
+         * @param max      total of deletes to be done.
+         */
+        private DeleteStatus(@Nullable Track.Id trackId, int progress, int max) {
+            this.trackId = trackId;
+            this.progress = progress;
+            this.max = max;
+        }
+
+        public boolean isFinished() {
+            return progress == max;
+        }
+
+        public boolean isDeleted(Track.Id trackId) {
+            return this.trackId != null && this.trackId.equals(trackId);
+        }
+
+        @Override
+        public String toString() {
+            return "DeleteStatus{" +
+                    "number of deletes=" + progress +
+                    ", total=" + max +
+                    '}';
+        }
+    }
+}

src/main/java/de/dennisguse/opentracks/services/TrackDeleteServiceConnection.java

@@ -0,0 +1,70 @@
+package de.dennisguse.opentracks.services;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.os.IBinder;
+
+import androidx.annotation.NonNull;
+
+import java.util.ArrayList;
+
+import de.dennisguse.opentracks.BuildConfig;
+import de.dennisguse.opentracks.content.data.Track;
+
+import static de.dennisguse.opentracks.services.TrackDeleteService.EXTRA_TRACK_IDS;
+
+public class TrackDeleteServiceConnection implements ServiceConnection {
+
+    final private Listener listener;
+    private TrackDeleteService trackDeleteService;
+
+    public TrackDeleteServiceConnection(@NonNull Listener listener) {
+        this.listener = listener;
+    }
+
+    @Override
+    public void onServiceConnected(ComponentName name, IBinder service) {
+        trackDeleteService = ((TrackDeleteService.Binder) service).getService();
+        listener.connected();
+    }
+
+    @Override
+    public void onServiceDisconnected(ComponentName name) {
+        trackDeleteService = null;
+    }
+
+    public void startAndBind(Context context, ArrayList<Track.Id> trackIds) {
+        if (trackDeleteService != null) {
+            return;
+        }
+
+        Intent intent = new Intent(context, TrackDeleteService.class)
+                .putParcelableArrayListExtra(EXTRA_TRACK_IDS, trackIds);
+        context.startService(intent);
+
+        bind(context);
+    }
+
+    public void bind(Context context) {
+        if (trackDeleteService != null) {
+            return;
+        }
+
+        context.bindService(new Intent(context, TrackDeleteService.class), this, BuildConfig.DEBUG ? Context.BIND_DEBUG_UNBIND : 0);
+    }
+
+    public void unbind(Context context) {
+        context.unbindService(this);
+        trackDeleteService = null;
+    }
+
+    public TrackDeleteService getServiceIfBound() {
+        return trackDeleteService;
+    }
+
+    public interface Listener {
+        void connected();
+    }
+}

src/main/java/de/dennisguse/opentracks/services/TrackRecordingService.java

@@ -33,6 +33,8 @@ import android.util.Log;
 import androidx.annotation.NonNull;
 import androidx.annotation.VisibleForTesting;
 import androidx.core.app.TaskStackBuilder;
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
 
 import java.time.Duration;
 import java.time.Instant;
@@ -52,7 +54,7 @@ import de.dennisguse.opentracks.services.handlers.GpsStatusValue;
 import de.dennisguse.opentracks.services.handlers.HandlerServer;
 import de.dennisguse.opentracks.services.sensors.AltitudeSumManager;
 import de.dennisguse.opentracks.services.sensors.BluetoothRemoteSensorManager;
-import de.dennisguse.opentracks.services.tasks.AnnouncementPeriodicTaskFactory;
+import de.dennisguse.opentracks.services.tasks.AnnouncementPeriodicTask;
 import de.dennisguse.opentracks.services.tasks.PeriodicTaskExecutor;
 import de.dennisguse.opentracks.settings.SettingsActivity;
 import de.dennisguse.opentracks.stats.TrackStatistics;
@@ -74,11 +76,26 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
 
     private static final String TAG = TrackRecordingService.class.getSimpleName();
 
+    private static final Duration RECORDING_DATA_UPDATE_INTERVAL = Duration.ofSeconds(1);
+
+    public static final RecordingStatus STATUS_DEFAULT = new RecordingStatus(null, false);
+    public static final RecordingData NOT_RECORDING = new RecordingData(null, null, null);
+    public static final GpsStatusValue STATUS_GPS_DEFAULT = GpsStatusValue.GPS_NONE;
+
     // The following variables are set in onCreate:
     private ContentProviderUtils contentProviderUtils;
     private PeriodicTaskExecutor voiceExecutor;
     private TrackRecordingServiceNotificationManager notificationManager;
 
+    private Handler handler;
+    private final Runnable updateRecordingData = new Runnable() {
+        @Override
+        public void run() {
+            updateRecordingDataWhileRecording();
+            handler.postDelayed(this, RECORDING_DATA_UPDATE_INTERVAL.toMillis());
+        }
+    };
+
     private SharedPreferences sharedPreferences;
 
     private Distance recordingDistanceInterval;
@@ -119,16 +136,26 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
 
     private HandlerServer handlerServer;
 
-    private final TrackRecordingServiceStatus serviceStatus = new TrackRecordingServiceStatus();
+    private RecordingStatus recordingStatus;
+    private MutableLiveData<RecordingStatus> recordingStatusObservable;
+    private MutableLiveData<GpsStatusValue> gpsStatusObservable;
+    private MutableLiveData<RecordingData> recordingDataObservable;
 
     @Override
     public void onCreate() {
         super.onCreate();
 
+        handler = new Handler();
+
+        recordingStatusObservable = new MutableLiveData<>();
+        updateRecordingStatus(STATUS_DEFAULT);
+        gpsStatusObservable = new MutableLiveData<>(STATUS_GPS_DEFAULT);
+        recordingDataObservable = new MutableLiveData<>(NOT_RECORDING);
+
         handlerServer = new HandlerServer(this);
 
         contentProviderUtils = new ContentProviderUtils(this);
-        voiceExecutor = new PeriodicTaskExecutor(this, new AnnouncementPeriodicTaskFactory());
+        voiceExecutor = new PeriodicTaskExecutor(this, new AnnouncementPeriodicTask.Factory());
 
         notificationManager = new TrackRecordingServiceNotificationManager(this);
 
@@ -149,7 +176,7 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
 
     @Override
     public void onDestroy() {
-        serviceStatus.onStop();
+        handler = null;
 
         handlerServer.stop(this);
         handlerServer = null;
@@ -181,21 +208,26 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
         // This should be the next to last operation
         wakeLock = SystemUtils.releaseWakeLock(wakeLock);
 
+        recordingStatusObservable = null;
+        gpsStatusObservable = null;
+        recordingDataObservable = null;
+
         super.onDestroy();
     }
 
     public boolean isRecording() {
-        return serviceStatus.isRecording();
+        return recordingStatus.isRecording();
     }
 
     public boolean isPaused() {
-        return serviceStatus.getRecordingTrackPaused();
+        return recordingStatus.isPaused();
     }
 
     public Track.Id getRecordingTrackId() {
-        return serviceStatus.getRecordingTrackId();
+        return recordingStatus.getTrackId();
     }
 
+    //TODO
     public TrackStatistics getTrackStatistics() {
         if (trackStatisticsUpdater == null) {
             return null;
@@ -223,14 +255,14 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
         }
 
         if (name == null) {
-            Integer nextMarkerNumber = contentProviderUtils.getNextMarkerNumber(serviceStatus.getRecordingTrackId());
+            Integer nextMarkerNumber = contentProviderUtils.getNextMarkerNumber(getRecordingTrackId());
             if (nextMarkerNumber == null) {
                 nextMarkerNumber = 1;
             }
             name = getString(R.string.marker_name_format, nextMarkerNumber + 1);
         }
 
-        TrackPoint trackPoint = getLastValidTrackPointInCurrentSegment(serviceStatus.getRecordingTrackId());
+        TrackPoint trackPoint = getLastValidTrackPointInCurrentSegment(getRecordingTrackId());
         if (trackPoint == null) {
             Log.i(TAG, "Could not create a marker as trackPoint is unknown.");
             return null;
@@ -244,7 +276,7 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
         TrackStatistics stats = trackStatisticsUpdater.getTrackStatistics();
 
         // Insert marker
-        Marker marker = new Marker(name, description, category, icon, serviceStatus.getRecordingTrackId(), stats, trackPoint, photoUrl);
+        Marker marker = new Marker(name, description, category, icon, getRecordingTrackId(), stats, trackPoint, photoUrl);
         Uri uri = contentProviderUtils.insertMarker(marker);
         return new Marker.Id(ContentUris.parseId(uri));
     }
@@ -266,7 +298,7 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
         Track.Id trackId = new Track.Id(ContentUris.parseId(uri));
 
         // Set recording status
-        serviceStatus.onChange(trackId, false);
+        updateRecordingStatus(new RecordingStatus(trackId, false));
 
         // Update database
         track.setId(trackId);
@@ -308,7 +340,7 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
         insertTrackPoint(track, TrackPoint.createSegmentStartManual());
 
         // Set recording status
-        serviceStatus.onChange(trackId, false);
+        updateRecordingStatus(new RecordingStatus(trackId, false));
 
         startRecording();
     }
@@ -321,10 +353,10 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
         }
 
         // Set recording status
-        serviceStatus.onChange(false);
+        updateRecordingStatus(new RecordingStatus(getRecordingTrackId(), false));
 
         // Update database
-        Track track = contentProviderUtils.getTrack(serviceStatus.getRecordingTrackId());
+        Track track = contentProviderUtils.getTrack(getRecordingTrackId());
         if (track != null) {
             insertTrackPoint(track, TrackPoint.createSegmentStartManual());
         }
@@ -340,6 +372,8 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
         remoteSensorManager = new BluetoothRemoteSensorManager(this);
         remoteSensorManager.start();
 
+        handler.postDelayed(updateRecordingData, RECORDING_DATA_UPDATE_INTERVAL.toMillis());
+
         altitudeSumManager = new AltitudeSumManager();
         altitudeSumManager.start(this);
 
@@ -373,10 +407,10 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
 
         // Need to remember the recordingTrackId before setting it to null
         boolean wasPause = isPaused();
-        Track.Id trackId = serviceStatus.getRecordingTrackId();
+        Track.Id trackId = getRecordingTrackId();
 
         // Set recording status
-        serviceStatus.onChange(null, true);
+        updateRecordingStatus(STATUS_DEFAULT);
 
         if (!wasPause) {
             // Update database
@@ -404,10 +438,10 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
         }
 
         // Set recording status
-        serviceStatus.onChange(true);
+        updateRecordingStatus(new RecordingStatus(getRecordingTrackId(), true));
 
         // Update database
-        Track track = contentProviderUtils.getTrack(serviceStatus.getRecordingTrackId());
+        Track track = contentProviderUtils.getTrack(getRecordingTrackId());
         if (track != null) {
             if (lastTrackPoint != null) {
                 insertTrackPointIfNewer(track, lastTrackPoint);
@@ -426,6 +460,13 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
      * @param trackStopped true if track is stopped, false if track is paused
      */
     private void endRecording(boolean trackStopped) {
+        handler.removeCallbacks(updateRecordingData);
+        if (!trackStopped) {
+            updateRecordingDataWhileRecording();
+        } else {
+            recordingDataObservable.postValue(NOT_RECORDING);
+        }
+
         // Shutdown periodic tasks
         voiceExecutor.shutdown();
 
@@ -490,7 +531,7 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
             return;
         }
 
-        Track track = contentProviderUtils.getTrack(serviceStatus.getRecordingTrackId());
+        Track track = contentProviderUtils.getTrack(getRecordingTrackId());
         if (track == null) {
             Log.w(TAG, "Ignore newTrackPoint. No track.");
             return;
@@ -564,17 +605,11 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
     @Override
     public void newGpsStatus(GpsStatusValue gpsStatusValue) {
         notificationManager.updateContent(getString(gpsStatusValue.message));
-        serviceStatus.onChange(gpsStatusValue);
-    }
 
-    public void addListener(@NonNull TrackRecordingServiceStatus.Listener listener) {
-        serviceStatus.addListener(listener);
-    }
-
-    //TODO Check that this is used everywhere, where addListener is called!
-    //Otherwise, we keep objects in referenced and waste memory until this service instance is terminated.
-    public void removeListener(@NonNull TrackRecordingServiceStatus.Listener listener) {
-        serviceStatus.removeListener(listener);
+        //TODO This check should not be necessary, but prevents a crash; somehow the shutdown is not working correctly as we should not receive a notification then.
+        if (gpsStatusObservable != null) {
+            gpsStatusObservable.postValue(gpsStatusValue);
+        }
     }
 
     /**
@@ -607,14 +642,18 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
                 trackPoint.setAltitudeLoss(getAltitudeLoss_m());
                 altitudeSumManager.reset();
             }
+
+            //TODO We need a copy of the SensorDataSet as data will be reset!
+            SensorDataSet sensorDataSet = fillWithSensorDataSet(trackPoint);
             if (remoteSensorManager != null) {
-                fillWithSensorDataSet(trackPoint);
                 remoteSensorManager.reset();
             }
             contentProviderUtils.insertTrackPoint(trackPoint, track.getId());
             trackStatisticsUpdater.addTrackPoint(trackPoint, recordingDistanceInterval);
-
             track.setTrackStatistics(trackStatisticsUpdater.getTrackStatistics());
+
+            recordingDataObservable.postValue(new RecordingData(track, trackPoint, sensorDataSet));
+
             contentProviderUtils.updateTrack(track);
         } catch (SQLiteException e) {
             /*
@@ -626,25 +665,26 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
         voiceExecutor.update();
     }
 
-    public SensorDataSet getSensorDataSet() {
+    private SensorDataSet fillWithSensorDataSet(TrackPoint trackPoint) {
         if (remoteSensorManager == null) {
             return null;
         }
 
-        return remoteSensorManager.getSensorData();
-    }
+        SensorDataSet sensorData = remoteSensorManager.getSensorData();
+        if (sensorData == null) {
+            return null;
+        }
 
-    private void fillWithSensorDataSet(TrackPoint trackPoint) {
-        SensorDataSet sensorData = getSensorDataSet();
-        if (sensorData != null) {
+        if (trackPoint != null) {
             sensorData.fillTrackPoint(trackPoint);
         }
+        return sensorData;
     }
 
     /**
      * Returns the relative altitude gain (since last trackpoint).
      */
-    public Float getAltitudeGain_m() {
+    private Float getAltitudeGain_m() {
         if (altitudeSumManager == null || !altitudeSumManager.isConnected()) {
             return null;
         }
@@ -655,7 +695,7 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
     /**
      * Returns the relative altitude loss (since last trackpoint).
      */
-    public Float getAltitudeLoss_m() {
+    private Float getAltitudeLoss_m() {
         if (altitudeSumManager == null || !altitudeSumManager.isConnected()) {
             return null;
         }
@@ -666,7 +706,7 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
     private void showNotification(boolean isGpsStarted) {
         if (isRecording()) {
             Intent intent = IntentUtils.newIntent(this, TrackRecordingActivity.class)
-                    .putExtra(TrackRecordingActivity.EXTRA_TRACK_ID, serviceStatus.getRecordingTrackId());
+                    .putExtra(TrackRecordingActivity.EXTRA_TRACK_ID, getRecordingTrackId());
             PendingIntent pendingIntent = TaskStackBuilder.create(this)
                     .addParentStack(TrackRecordingActivity.class)
                     .addNextIntent(intent)
@@ -702,8 +742,34 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
         this.altitudeSumManager = altitudeSumManager;
     }
 
-    public GpsStatusValue getGpsStatus() {
-        return handlerServer.getGpsStatus();
+    public LiveData<GpsStatusValue> getGpsStatusObservable() {
+        return gpsStatusObservable;
+    }
+
+    public MutableLiveData<RecordingData> getRecordingDataObservable() {
+        return recordingDataObservable;
+    }
+
+    private void updateRecordingDataWhileRecording() {
+        if (!recordingStatus.isRecording()) {
+            Log.w(TAG, "Currently not recording; cannot update data.");
+            return;
+        }
+        Track track = contentProviderUtils.getTrack(recordingStatus.getTrackId());
+        track.getTrackStatistics().setTotalTime(TrackRecordingService.this.getTotalTime());
+
+        SensorDataSet sensorDataSet = fillWithSensorDataSet(lastTrackPoint);
+        recordingDataObservable.postValue(new RecordingData(track, lastTrackPoint, sensorDataSet));
+    }
+
+    public LiveData<RecordingStatus> getRecordingStatusObservable() {
+        return recordingStatusObservable;
+    }
+
+    private void updateRecordingStatus(RecordingStatus status) {
+        Log.i(TAG, "new status " + recordingStatus + " -> " + status);
+        recordingStatus = status;
+        recordingStatusObservable.postValue(recordingStatus);
     }
 
     @Override
@@ -717,6 +783,7 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
         }
     }
 
+
     public class Binder extends android.os.Binder {
 
         private Binder() {
@@ -727,4 +794,98 @@ public class TrackRecordingService extends Service implements HandlerServer.Hand
             return TrackRecordingService.this;
         }
     }
+
+    public static class RecordingStatus {
+        private final Track.Id trackId;
+        private final boolean paused;
+
+        public RecordingStatus(Track.Id trackId, boolean paused) {
+            this.trackId = trackId;
+            this.paused = paused;
+        }
+
+        public Track.Id getTrackId() {
+            return trackId;
+        }
+
+        public boolean isRecording() {
+            return trackId != null;
+        }
+
+        public boolean isPaused() {
+            return paused;
+        }
+
+        public boolean isRecordingAndNotPaused() {
+            return isRecording() && !isPaused();
+        }
+
+//      TODO Use
+//        public RecordingStatus pause() {
+//            return new RecordingStatus(getTrackId(), true);
+//        }
+//
+//        public RecordingStatus record(@NonNull Track.Id trackId) {
+//            return new RecordingStatus(trackId, false);
+//        }
+
+        public RecordingStatus stop() {
+            return STATUS_DEFAULT;
+        }
+
+
+        @Override
+        public String toString() {
+            return "RecordingStatus{" +
+                    "trackId=" + trackId +
+                    ", paused=" + paused +
+                    '}';
+        }
+    }
+
+    public static class RecordingData {
+
+        private final Track track;
+
+        private final TrackPoint latestTrackPoint;
+
+        private final SensorDataSet sensorDataSet;
+
+        /**
+         * {@link Track} and {@link TrackPoint} must be immutable (i.e., their content does not change).
+         */
+        public RecordingData(Track track, TrackPoint lastTrackPoint, SensorDataSet sensorDataSet) {
+            this.track = track;
+            this.latestTrackPoint = lastTrackPoint;
+            this.sensorDataSet = sensorDataSet;
+        }
+
+        public Track getTrack() {
+            return track;
+        }
+
+        public String getTrackCategory() {
+            if (track == null) {
+                return "";
+            }
+            return track.getCategory();
+        }
+
+        @NonNull
+        public TrackStatistics getTrackStatistics() {
+            if (track == null) {
+                return new TrackStatistics();
+            }
+
+            return track.getTrackStatistics();
+        }
+
+        public TrackPoint getLatestTrackPoint() {
+            return latestTrackPoint;
+        }
+
+        public SensorDataSet getSensorDataSet() {
+            return sensorDataSet;
+        }
+    }
 }

src/main/java/de/dennisguse/opentracks/services/TrackRecordingServiceConnection.java

@@ -44,6 +44,7 @@ public class TrackRecordingServiceConnection implements ServiceConnection, Death
 
     private static final String TAG = TrackRecordingServiceConnection.class.getSimpleName();
 
+    @Deprecated //TODO Implement proper interface that passes the current TrackRecordingService
     private final Runnable callback;
 
     private TrackRecordingService trackRecordingService;

src/main/java/de/dennisguse/opentracks/services/TrackRecordingServiceStatus.java

@@ -1,83 +0,0 @@
-package de.dennisguse.opentracks.services;
-
-import androidx.annotation.NonNull;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import de.dennisguse.opentracks.content.data.Track;
-import de.dennisguse.opentracks.services.handlers.GpsStatusValue;
-
-/**
- * This class handles the status of the recording service.
- * Also offer an interface through which to know the recording Track.Id, pause status and GPS status.
- */
-public class TrackRecordingServiceStatus {
-
-    private Track.Id recordingTrackId;
-    private boolean recordingTrackPaused;
-
-    private final List<Listener> listeners = new ArrayList<>();
-
-    void addListener(@NonNull Listener listener) {
-        if (this.listeners.contains(listener)) {
-            return;
-        }
-        this.listeners.add(listener);
-        listener.onTrackRecordingId(recordingTrackId);
-        listener.onTrackRecordingPaused(recordingTrackPaused);
-    }
-
-    void removeListener(@NonNull Listener listener) {
-        this.listeners.remove(listener);
-    }
-
-    public boolean getRecordingTrackPaused() {
-        return this.recordingTrackPaused;
-    }
-
-    public Track.Id getRecordingTrackId() {
-        return this.recordingTrackId;
-    }
-
-    public void onStop() {
-        for (Listener listener : listeners) {
-            listener.onGpsStatus(GpsStatusValue.GPS_NONE);
-            listener.onTrackRecordingId(null);
-            listener.onTrackRecordingPaused(true);
-        }
-        listeners.clear();
-    }
-
-    public boolean isRecording() {
-        return recordingTrackId != null;
-    }
-
-    void onChange(Track.Id trackId, boolean paused) {
-        recordingTrackId = trackId;
-        recordingTrackPaused = paused;
-        for (Listener listener : listeners) {
-            listener.onTrackRecordingId(recordingTrackId);
-            listener.onTrackRecordingPaused(recordingTrackPaused);
-        }
-    }
-
-    void onChange(boolean paused) {
-        recordingTrackPaused = paused;
-        for (Listener listener : listeners) {
-            listener.onTrackRecordingPaused(recordingTrackPaused);
-        }
-    }
-
-    void onChange(GpsStatusValue statusValue) {
-        for (Listener listener : listeners) {
-            listener.onGpsStatus(statusValue);
-        }
-    }
-
-    public interface Listener {
-        default void onGpsStatus(GpsStatusValue newValue) {}
-        default void onTrackRecordingPaused(boolean paused) {}
-        default void onTrackRecordingId(Track.Id trackId) {}
-    }
-}

src/main/java/de/dennisguse/opentracks/services/handlers/GpsStatus.java

@@ -14,7 +14,7 @@ import de.dennisguse.opentracks.content.data.TrackPoint;
 import de.dennisguse.opentracks.util.PreferencesUtils;
 
 /**
- * This class handle GPS status according to received locations and some thresholds.
+ * This class handle GPS status according to received locations` and some thresholds.
  */
 //TODO should handle sharedpreference changes
 class GpsStatus {
@@ -56,6 +56,7 @@ class GpsStatus {
 
         public void stop() {
             stopped = true;
+            sendStatus(gpsStatus, GpsStatusValue.GPS_NONE);
         }
     }
 
@@ -75,10 +76,15 @@ class GpsStatus {
         gpsStatusHandler = new Handler();
     }
 
+    public void start() {
+        client.onGpsStatusChanged(GpsStatusValue.GPS_NONE, GpsStatusValue.GPS_ENABLED);
+    }
+
     /**
      * The client that uses GpsStatus has to call this method to stop the Runnable if needed.
      */
     public void stop() {
+        client.onGpsStatusChanged(gpsStatus, GpsStatusValue.GPS_NONE);
         client = null;
         if (gpsStatusRunner != null) {
             gpsStatusRunner.stop();

src/main/java/de/dennisguse/opentracks/services/handlers/GpsStatusValue.java

@@ -20,4 +20,8 @@ public enum GpsStatusValue {
         this.icon = icon;
         this.message = message;
     }
+
+    public boolean isGpsStarted() {
+        return this != GpsStatusValue.GPS_NONE && this != GpsStatusValue.GPS_DISABLED;
+    }
 }

src/main/java/de/dennisguse/opentracks/services/handlers/HandlerServer.java

@@ -63,10 +63,6 @@ public class HandlerServer {
         service.newGpsStatus(gpsStatusValue);
     }
 
-    public GpsStatusValue getGpsStatus() {
-        return locationHandler.getGpsStatus();
-    }
-
     public interface HandlerServerInterface {
         void newTrackPoint(TrackPoint trackPoint, int gpsAccuracy);
         void newGpsStatus(GpsStatusValue gpsStatusValue);

src/main/java/de/dennisguse/opentracks/services/handlers/LocationHandler.java

@@ -38,6 +38,7 @@ class LocationHandler implements HandlerServer.Handler, LocationListener, GpsSta
         gpsStatus = new GpsStatus(context, this);
         locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
         registerLocationListener();
+        gpsStatus.start();
     }
 
     @Override

src/main/java/de/dennisguse/opentracks/services/sensors/BluetoothRemoteSensorManager.java

@@ -25,6 +25,7 @@ import android.util.Log;
 import java.time.Duration;
 
 import de.dennisguse.opentracks.R;
+import de.dennisguse.opentracks.content.data.Distance;
 import de.dennisguse.opentracks.content.sensor.SensorData;
 import de.dennisguse.opentracks.content.sensor.SensorDataCycling;
 import de.dennisguse.opentracks.content.sensor.SensorDataSet;
@@ -57,7 +58,7 @@ public class BluetoothRemoteSensorManager implements BluetoothConnectionManager.
     private boolean started = false;
 
     private final SharedPreferences sharedPreferences;
-    private int preferenceWheelCircumference;
+    private Distance preferenceWheelCircumference;
 
     private final BluetoothConnectionManager.HeartRate heartRate = new BluetoothConnectionManager.HeartRate(this);
     private final BluetoothConnectionManager.CyclingCadence cyclingCadence = new BluetoothConnectionManager.CyclingCadence(this);

src/main/java/de/dennisguse/opentracks/services/tasks/AnnouncementPeriodicTask.java

@@ -23,6 +23,8 @@ import android.speech.tts.TextToSpeech;
 import android.speech.tts.UtteranceProgressListener;
 import android.util.Log;
 
+import androidx.annotation.NonNull;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Locale;
@@ -135,12 +137,7 @@ public class AnnouncementPeriodicTask implements PeriodicTask {
     }
 
     @Override
-    public void run(TrackRecordingService trackRecordingService) {
-        if (trackRecordingService == null) {
-            Log.e(TAG, "TrackRecordingService is null.");
-            return;
-        }
-
+    public void run(@NonNull TrackRecordingService trackRecordingService) {
         announce(trackRecordingService.getRecordingTrackId(), trackRecordingService.getTrackStatistics());
     }
 
@@ -181,7 +178,7 @@ public class AnnouncementPeriodicTask implements PeriodicTask {
         }
         String category = track.getCategory();
 
-        //TODO Querying all TrackPoints all the time is inefficient; use TrackDataHub or something else.
+        //TODO Querying all TrackPoints all the time is inefficient; get infos from TrackRecordingService
         TrackPointIterator trackPointIterator = contentProviderUtils.getTrackPointLocationIterator(track.getId(), null);
         ArrayList<TrackPoint> trackPoints = new ArrayList<>();
         while (trackPointIterator.hasNext()) {
@@ -231,4 +228,18 @@ public class AnnouncementPeriodicTask implements PeriodicTask {
         // We don't care about the utterance id. It is supplied here to force onUtteranceCompleted to be called.
         tts.speak(announcement, TextToSpeech.QUEUE_FLUSH, null, "not used");
     }
+
+    /**
+     * A {@link PeriodicTaskFactory} for text-to-speech announcement periodic task.
+     *
+     * @author Rodrigo Damazio
+     */
+    public static class Factory implements PeriodicTaskFactory {
+
+        @Override
+        @NonNull
+        public PeriodicTask create(Context context) {
+            return new AnnouncementPeriodicTask(context);
+        }
+    }
 }

src/main/java/de/dennisguse/opentracks/services/tasks/AnnouncementPeriodicTaskFactory.java

@@ -1,31 +0,0 @@
-/*
- * Copyright 2010 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-package de.dennisguse.opentracks.services.tasks;
-
-import android.content.Context;
-
-/**
- * A {@link PeriodicTaskFactory} for text-to-speech announcement periodic task.
- *
- * @author Rodrigo Damazio
- */
-public class AnnouncementPeriodicTaskFactory implements PeriodicTaskFactory {
-
-    @Override
-    public PeriodicTask create(Context context) {
-        return new AnnouncementPeriodicTask(context);
-    }
-}

src/main/java/de/dennisguse/opentracks/services/tasks/PeriodicTask.java

@@ -16,6 +16,8 @@
 
 package de.dennisguse.opentracks.services.tasks;
 
+import androidx.annotation.NonNull;
+
 import de.dennisguse.opentracks.services.TrackRecordingService;
 
 /**
@@ -35,7 +37,7 @@ public interface PeriodicTask {
      *
      * @param trackRecordingService the track recording service
      */
-    void run(TrackRecordingService trackRecordingService);
+    void run(@NonNull TrackRecordingService trackRecordingService);
 
     /**
      * Shuts down this task and clean up resources.

src/main/java/de/dennisguse/opentracks/services/tasks/PeriodicTaskExecutor.java

@@ -17,6 +17,9 @@ package de.dennisguse.opentracks.services.tasks;
 
 import android.util.Log;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.VisibleForTesting;
+
 import java.time.Duration;
 
 import de.dennisguse.opentracks.R;
@@ -52,14 +55,13 @@ public class PeriodicTaskExecutor {
 
     private boolean metricUnits;
 
-    // The next distance for the distance periodic task
-    private double nextTaskDistance = Double.MAX_VALUE;
+    private Distance nextTaskDistance = Distance.of(Double.MAX_VALUE);
 
-    public PeriodicTaskExecutor(TrackRecordingService trackRecordingService, PeriodicTaskFactory periodicTaskFactory) {
+    public PeriodicTaskExecutor(@NonNull TrackRecordingService trackRecordingService, PeriodicTaskFactory periodicTaskFactory) {
         this.trackRecordingService = trackRecordingService;
         this.periodicTaskFactory = periodicTaskFactory;
 
-        TASK_FREQUENCY_OFF = Integer.parseInt(trackRecordingService.getBaseContext().getResources().getString(R.string.frequency_off));
+        TASK_FREQUENCY_OFF = Integer.parseInt(trackRecordingService.getString(R.string.frequency_off));
         taskFrequency = TASK_FREQUENCY_OFF;
     }
 
@@ -97,7 +99,7 @@ public class PeriodicTaskExecutor {
             timerTaskExecutor.scheduleTask(Duration.ofMinutes(taskFrequency));
         } else {
             // For distance periodic task
-            calculateNextTaskDistance();
+            updateNextTaskDistance();
         }
     }
 
@@ -128,59 +130,48 @@ public class PeriodicTaskExecutor {
             return;
         }
 
-        Distance distance = trackStatistics.getTotalDistance();
-
-        if (distance.greaterThan(Distance.of(nextTaskDistance))) {
+        if (trackStatistics.getTotalDistance().greaterThan(nextTaskDistance)) {
             periodicTask.run(trackRecordingService);
-            calculateNextTaskDistance();
+            updateNextTaskDistance();
         }
     }
 
-    /**
-     * Sets task frequency.
-     *
-     * @param taskFrequency the task frequency
-     */
     public void setTaskFrequency(int taskFrequency) {
         this.taskFrequency = taskFrequency;
         restore();
     }
 
-    /**
-     * Sets metricUnits.
-     *
-     * @param metricUnits true to use metric units
-     */
     public void setMetricUnits(boolean metricUnits) {
         this.metricUnits = metricUnits;
-        calculateNextTaskDistance();
+        updateNextTaskDistance();
     }
 
-    /**
-     * Calculates the next distance for the distance periodic task.
-     */
-    private void calculateNextTaskDistance() {
+    private void updateNextTaskDistance() {
         if (!trackRecordingService.isRecording() || trackRecordingService.isPaused() || periodicTask == null) {
             return;
         }
 
+        if (!isDistanceFrequency()) {
+            nextTaskDistance = Distance.of(Double.MAX_VALUE);
+            Log.d(TAG, "SplitManager: Distance splits disabled.");
+            return;
+        }
+
         TrackStatistics trackStatistics = trackRecordingService.getTrackStatistics();
         if (trackStatistics == null) {
             return;
         }
 
-        if (!isDistanceFrequency()) {
-            nextTaskDistance = Double.MAX_VALUE;
-            Log.d(TAG, "SplitManager: Distance splits disabled.");
-            return;
-        }
+        nextTaskDistance = calculateNextTaskDistance(trackStatistics);
+    }
 
-        double distance = trackStatistics.getTotalDistance().to(metricUnits);
+    @VisibleForTesting
+    public Distance calculateNextTaskDistance(TrackStatistics trackStatistics) {
+        Distance distance = trackStatistics.getTotalDistance();
 
-        // The index will be negative since the frequency is negative.
-        int index = (int) (distance / taskFrequency);
-        index -= 1;
-        nextTaskDistance = taskFrequency * index;
+        Distance announcementInterval = Distance.one(metricUnits).multipliedBy(Math.abs(taskFrequency));
+        int index = (int) (distance.dividedBy(announcementInterval));
+        return announcementInterval.multipliedBy(index + 1);
     }
 
     /**

src/main/java/de/dennisguse/opentracks/services/tasks/PeriodicTaskFactory.java

@@ -18,6 +18,8 @@ package de.dennisguse.opentracks.services.tasks;
 
 import android.content.Context;
 
+import androidx.annotation.NonNull;
+
 /**
  * An interface for classes that can create {@link PeriodicTask}.
  *
@@ -30,5 +32,6 @@ interface PeriodicTaskFactory {
      *
      * @return the task, or null if the task is not supported
      */
+    @NonNull
     PeriodicTask create(Context context);
 }

src/main/java/de/dennisguse/opentracks/settings/SettingsActivity.java

@@ -3,10 +3,12 @@ package de.dennisguse.opentracks.settings;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.speech.tts.TextToSpeech;
 import android.util.Log;
 import android.view.View;
 import android.widget.Toast;
 
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.widget.Toolbar;
 import androidx.documentfile.provider.DocumentFile;
@@ -20,12 +22,10 @@ import java.util.Locale;
 
 import de.dennisguse.opentracks.AbstractActivity;
 import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.content.data.Track;
 import de.dennisguse.opentracks.fragments.ChooseActivityTypeDialogFragment;
 import de.dennisguse.opentracks.io.file.TrackFileFormat;
 import de.dennisguse.opentracks.services.TrackRecordingService;
 import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
-import de.dennisguse.opentracks.services.TrackRecordingServiceStatus;
 import de.dennisguse.opentracks.settings.bluetooth.BluetoothLeCyclingCadenceAndSpeedPreference;
 import de.dennisguse.opentracks.settings.bluetooth.BluetoothLeCyclingPowerPreference;
 import de.dennisguse.opentracks.settings.bluetooth.BluetoothLeHeartRatePreference;
@@ -93,7 +93,10 @@ public class SettingsActivity extends AbstractActivity implements ChooseActivity
         getSupportFragmentManager().beginTransaction().replace(R.id.settings_fragment, prefsFragment).commit();
     }
 
-    public static class PrefsFragment extends PreferenceFragmentCompat implements TrackRecordingServiceStatus.Listener {
+    public static class PrefsFragment extends PreferenceFragmentCompat {
+
+        private TextToSpeech tts;
+        private int ttsInitStatus;
 
         private SharedPreferences sharedPreferences;
 
@@ -107,21 +110,42 @@ public class SettingsActivity extends AbstractActivity implements ChooseActivity
         };
 
         private TrackRecordingServiceConnection trackRecordingServiceConnection;
-        private boolean isRecording;
+        private TrackRecordingService.RecordingStatus recordingStatus = TrackRecordingService.STATUS_DEFAULT;
 
         private final Runnable bindServiceCallback = new Runnable() {
             @Override
             public void run() {
                 TrackRecordingService service = trackRecordingServiceConnection.getServiceIfBound();
-                if (service != null) {
-                    service.addListener(PrefsFragment.this);
+                if (service == null) {
+                    Log.w(TAG, "could not get TrackRecordingService");
+                    return;
                 }
+
+                service.getRecordingStatusObservable()
+                        .observe(PrefsFragment.this, status -> onRecordingStatusChanged(status));
+
             }
         };
 
         // Used to forward update from ChooseActivityTypeDialogFragment; TODO Could be replaced with LiveData.
         private ActivityTypePreference.ActivityPreferenceDialog activityPreferenceDialog;
 
+        private Preference voiceAnnouncements;
+
+        @Override
+        public void onCreate(@Nullable Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            ttsInitStatus = TextToSpeech.ERROR;
+            tts = new TextToSpeech(getContext(), status -> {
+                ttsInitStatus = status;
+                Log.i(TAG, "TextToSpeech initialized with status " + status);
+
+                if (voiceAnnouncements != null) {
+                    updateVoiceAnnouncements();
+                }
+            });
+        }
+
         @Override
         public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
             sharedPreferences = PreferencesUtils.getSharedPreferences(getContext());
@@ -147,6 +171,9 @@ public class SettingsActivity extends AbstractActivity implements ChooseActivity
                 //Use same value for not set as Androidx ListPreference and EditTextPreference
                 return directory != null ? directory.getName() : getString(R.string.not_set);
             });
+
+            voiceAnnouncements = findPreference(getString(R.string.voice_frequency_key));
+            updateVoiceAnnouncements();
         }
 
         @Override
@@ -205,6 +232,8 @@ public class SettingsActivity extends AbstractActivity implements ChooseActivity
             super.onDestroy();
             trackRecordingServiceConnection.unbind(getContext());
             sharedPreferences = null;
+            voiceAnnouncements = null;
+            tts = null;
         }
 
         public void setDefaultActivity(String iconValue) {
@@ -218,6 +247,7 @@ public class SettingsActivity extends AbstractActivity implements ChooseActivity
             Preference importPreference = findPreference(getString(R.string.settings_import));
             Preference exportPreference = findPreference(getString(R.string.settings_export));
 
+            boolean isRecording = recordingStatus.isRecording();
             resetPreference.setSummary(isRecording ? getString(R.string.settings_not_while_recording) : "");
             importPreference.setSummary(isRecording ? getString(R.string.settings_not_while_recording) : "");
             exportPreference.setSummary(isRecording ? getString(R.string.settings_not_while_recording) : "");
@@ -292,13 +322,15 @@ public class SettingsActivity extends AbstractActivity implements ChooseActivity
             });
         }
 
-        @Override
-        public void onTrackRecordingId(Track.Id trackId) {
-            if (trackId != null && !isRecording && isAdded()) {
-                isRecording = true;
+        private void updateVoiceAnnouncements() {
+            voiceAnnouncements.setEnabled(ttsInitStatus == TextToSpeech.SUCCESS);
+        }
+
+        private void onRecordingStatusChanged(TrackRecordingService.RecordingStatus status) {
+            this.recordingStatus = status;
+            if (!status.isRecording() && isAdded()) {
                 updatePrefsDependOnRecording();
             }
         }
     }
-
 }

src/main/java/de/dennisguse/opentracks/stats/TrackStatisticsUpdater.java

@@ -22,6 +22,7 @@ import androidx.annotation.NonNull;
 import androidx.annotation.VisibleForTesting;
 
 import java.time.Duration;
+import java.util.List;
 
 import de.dennisguse.opentracks.content.data.Distance;
 import de.dennisguse.opentracks.content.data.Speed;
@@ -98,10 +99,13 @@ public class TrackStatisticsUpdater {
         return trackInitialized;
     }
 
+    public void addTrackPoints(List<TrackPoint> trackPoints, Distance minGPSDistance) {
+        for (TrackPoint tp : trackPoints) {
+            addTrackPoint(tp, minGPSDistance);
+        }
+    }
+
     /**
-     * Adds a trackPoint.
-     *
-     * @param trackPoint     the trackPoint
      * @param minGPSDistance the min recording distance
      */
     public void addTrackPoint(TrackPoint trackPoint, Distance minGPSDistance) {
@@ -148,7 +152,7 @@ public class TrackStatisticsUpdater {
 
         //Update absolute (GPS-based) altitude
         if (trackPoint.hasAltitude()) {
-            updateAbsoluteAltitude(trackPoint.getAltitude());
+            updateAbsoluteAltitude(trackPoint.getAltitude().toM());
         }
 
         if (lastTrackPoint == null || lastMovingTrackPoint == null) {
@@ -159,7 +163,7 @@ public class TrackStatisticsUpdater {
 
         if (!trackPoint.hasSensorDistance()) {
             // GPS-based distance/speed
-            Distance movingDistance = lastMovingTrackPoint.distanceToPrevious(trackPoint);
+            Distance movingDistance = trackPoint.distanceToPrevious(lastMovingTrackPoint);
             if (movingDistance.lessThan(minGPSDistance) && !trackPoint.isMoving()) {
                 speedBuffer_mps.reset();
                 lastTrackPoint = trackPoint;

src/main/java/de/dennisguse/opentracks/util/ActivityUtils.java

@@ -23,7 +23,6 @@ import java.util.ArrayList;
 
 import de.dennisguse.opentracks.ContextualActionModeCallback;
 import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.TrackController;
 
 import static android.content.Context.VIBRATOR_SERVICE;
 
@@ -88,7 +87,7 @@ public class ActivityUtils {
         });
     }
 
-    public static void configureSearchWidget(Activity activity, final MenuItem menuItem, final TrackController trackController) {
+    public static SearchView configureSearchWidget(Activity activity, final MenuItem menuItem) {
         final SearchView searchView = (SearchView) menuItem.getActionView();
         SearchManager searchManager = (SearchManager) activity.getSystemService(Context.SEARCH_SERVICE);
         if (searchManager != null) {
@@ -97,47 +96,12 @@ public class ActivityUtils {
         } else {
             Log.w(TAG, "Could not retrieve SearchManager.");
         }
-        searchView.setQueryRefinementEnabled(true);
         searchView.setSubmitButtonEnabled(true);
-        searchView.setOnQueryTextFocusChangeListener((v, hasFocus) -> {
-            // Hide and show trackController when searchable widget has focus/no focus
-            if (trackController != null) {
-                if (hasFocus) {
-                    trackController.hide();
-                } else {
-                    trackController.show();
-                }
-            }
-        });
-
-        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
-            @Override
-            public boolean onQueryTextSubmit(String query) {
-                menuItem.collapseActionView();
-                return false;
-            }
-
-            @Override
-            public boolean onQueryTextChange(String newText) {
-                return false;
-            }
-        });
-        searchView.setOnSuggestionListener(new SearchView.OnSuggestionListener() {
-            @Override
-            public boolean onSuggestionSelect(int position) {
-                return false;
-            }
-
-            @Override
-            public boolean onSuggestionClick(int position) {
-                menuItem.collapseActionView();
-                return false;
-            }
-        });
+        return searchView;
     }
 
-    public static void vibrate(Activity activity, int milliseconds) {
-        final Vibrator vibrator = (Vibrator) activity.getSystemService(VIBRATOR_SERVICE);
+    public static void vibrate(Context context, int milliseconds) {
+        final Vibrator vibrator = (Vibrator) context.getSystemService(VIBRATOR_SERVICE);
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             vibrator.vibrate(VibrationEffect.createOneShot(milliseconds, VibrationEffect.DEFAULT_AMPLITUDE));
         } else {

src/main/java/de/dennisguse/opentracks/util/AnnouncementUtils.java

@@ -49,7 +49,7 @@ public class AnnouncementUtils {
         }
 
         int totalDistanceId = isMetricUnits ? R.plurals.voiceTotalDistanceKilometers : R.plurals.voiceTotalDistanceMiles;
-        double distanceInUnit = distance.to(isMetricUnits);
+        double distanceInUnit = distance.toKM_Miles(isMetricUnits);
         String totalDistance = context.getResources().getQuantityString(totalDistanceId, getQuantityCount(distanceInUnit), distanceInUnit);
 
         currentRateMsg = currentInterval == null ? "" : " " + currentRateMsg;