Release: v4.5.0

Material3: less customizing for night
mode.
2023-06-20 07:32:15 +02:00 · 2023-06-20 07:28:00 +02:00 · 2023-06-20 07:28:00 +02:00 · 2023-06-19 08:32:17 +02:00 · 2023-06-16 22:48:49 +02:00 · 2023-06-16 00:00:31 +02:00
291 changed files with 5245 additions and 4544 deletions
@@ -13,7 +13,7 @@ jobs:
      - uses: actions/setup-java@v3
        with:
          distribution: 'adopt'
-          java-version: '11'
+          java-version: '17'

      - name: Assemble APK
        shell: bash
@@ -16,6 +16,6 @@ jobs:
      - uses: actions/setup-java@v3
        with:
          distribution: 'zulu'
-          java-version: '11'
+          java-version: '17'

      - run: ./gradlew lint
@@ -2,7 +2,7 @@

 _OpenTracks_ is a sport tracking application that completely respects your privacy.

-[![Awesome Humane Tech](https://raw.githubusercontent.com/humanetech-community/awesome-humane-tech/main/humane-tech-badge.svg?sanitize=true)](https://github.com/humanetech-community/awesome-humane-tech)
+[![Awesome Humane Tech](https://codeberg.org/teaserbot-labs/delightful-humane-design/raw/branch/main/humane-tech-badge.svg)](https://delightful.club/delightful-humane-design/#health)

 <table>
    <tr>
@@ -40,8 +40,10 @@ _OpenTracks_ is a sport tracking application that completely respects your priva
    </tr>
 </table>

-<a href="https://weblate.bubu1.eu/engage/OpenTracks/">
-	<img src="https://weblate.bubu1.eu/widgets/OpenTracks/-/opentracks/horizontal-auto.svg" alt="Translation status" />
+Translations are hosted on <a href="https://hosted.weblate.org/engage/opentracks/">
+hosted.weblate.org</a>.
+<a href="https://hosted.weblate.org/engage/opentracks/">
+<img src="https://hosted.weblate.org/widgets/opentracks/-/horizontal-auto.svg" alt="Translation status" />
 </a>

 ## Screenshots
@@ -150,7 +152,7 @@ The developer documentation is in [README_API.md](README_API.md).
 ## 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).
+_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.
 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).
@@ -17,10 +17,10 @@ Application id: de.dennisguse.opentracks
 It if it properly tagged F-Droid takes care of building the app and publishing.
 Usually, it takes two days before the update is published (build, signed, and published). 

-The recent build activity can be found [here](https://f-droid.org/wiki/index.php?title=Special:RecentChanges&days=7&from=&hidebots=0&hideanons=1&hideliu=1&limit=500)
+The recent build activity can be found [here](https://monitor.f-droid.org/builds/build)

 ## Google Play Store
-Application id: de.dennisguse.opentracks.playstore
+Application id: `de.dennisguse.opentracks.playstore`

 Requirement: `gem install fastlane`

@@ -35,4 +35,6 @@ Supported languages: https://support.google.com/googleplay/android-developer/tab

 ## Translations (localization)

-Translations of the OpenTracks are handled in Weblate: [https://weblate.bubu1.eu/projects/OpenTracks/](https://weblate.bubu1.eu/projects/OpenTracks/).
+Translations of the OpenTracks are handled in
+Weblate: [https://hosted.weblate.org/projects/opentracks/](https://hosted.weblate.org/projects/opentracks)
+.
@@ -6,7 +6,7 @@ buildscript {
        mavenCentral()
    }
    dependencies {
-        classpath 'com.android.tools.build:gradle:7.3.1'
+        classpath 'com.android.tools.build:gradle:8.1.0-beta04'
    }
 }

@@ -47,25 +47,30 @@ android {
    compileOptions {
        coreLibraryDesugaringEnabled true

-        sourceCompatibility JavaVersion.VERSION_11
-        targetCompatibility JavaVersion.VERSION_11
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
    }

-    compileSdk 33
+    compileSdk 34

    buildFeatures {
        viewBinding true
+        buildConfig true
+    }
+
+    androidResources {
+        generateLocaleConfig = true
    }

    defaultConfig {
        applicationId "de.dennisguse.opentracks"
-        versionCode 5080
-        versionName "v4.1.2"
+        versionCode 5262
+        versionName "v4.5.0"

        buildConfigField "String", "VERSION_NAME_FULL", "\"${getVersionName()}\""

        minSdk 21
-        targetSdk 33
+        targetSdk 34

        testInstrumentationRunner "de.dennisguse.opentracks.TestRunner"
        testInstrumentationRunnerArguments clearPackageData: 'true'
@@ -106,11 +111,11 @@ android {
        }
    }

-    applicationVariants.all { variant ->
+    applicationVariants.configureEach { variant ->
        variant.resValue "string", "applicationId", variant.applicationId

        if (variant.buildType.name == 'nightly') {
-            variant.outputs.all {
+            variant.outputs.configureEach {
                setVersionCodeOverride(getVersionCode())
                setVersionNameOverride(getVersionName())
                outputFileName = "${applicationId}_${variant.versionCode}.apk"
@@ -120,21 +125,23 @@ android {
 }

 dependencies {
-    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.2.2'
+    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.0.3'

-    implementation 'androidx.appcompat:appcompat:1.6.0-rc01'
+    implementation 'androidx.appcompat:appcompat:1.6.1'
    implementation 'androidx.preference:preference:1.2.0'
    implementation 'androidx.documentfile:documentfile:1.0.1'
-    implementation 'com.google.android.material:material:1.7.0'
+    implementation 'androidx.gridlayout:gridlayout:1.0.0'
+    implementation 'com.google.android.material:material:1.9.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
-    implementation 'androidx.core:core-splashscreen:1.0.0'
+    implementation 'androidx.core:core-splashscreen:1.0.1'
+    implementation 'androidx.mediarouter:mediarouter:1.4.0'

-    androidTestImplementation 'androidx.test:core:1.4.0'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
-    androidTestImplementation 'androidx.test:rules:1.4.0'
-    androidTestImplementation 'androidx.test:runner:1.4.0'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
-    androidTestImplementation 'org.mockito:mockito-android:4.8.1'
+    androidTestImplementation 'androidx.test:core:1.5.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
+    androidTestImplementation 'androidx.test:rules:1.5.0'
+    androidTestImplementation 'androidx.test:runner:1.5.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+    androidTestImplementation 'org.mockito:mockito-android:5.4.0'

-    androidTestUtil 'androidx.test:orchestrator:1.4.1'
+    androidTestUtil 'androidx.test:orchestrator:1.4.2'
 }
@@ -7,5 +7,5 @@ Changes:
 Bugfix:
 - Speech announcements use MAY_DUCK (again)
 - ChartView shows markers (again)
- Fixed landscape layout of TrackListActivity
+- Fixed landscape recordingLayout of TrackListActivity
 - Request legacy file API behavior (necessary for Android 10)
@@ -0,0 +1,8 @@
+v4.2.0: OpenTracks
+
+Changes:
+- Show heartrate zone information
+
+Developer:
+- Migrated to hosted.weblate.org
+- Recording UI uses Views directly
@@ -0,0 +1,8 @@
+v4.2.1: OpenTracks
+
+Changes:
+- Speed sensor: acceptable wheel diameter is 100mm-4000mm
+
+Bugfix:
+- Reconnect to a sensor if connection is lost
+
@@ -0,0 +1,9 @@
+v4.2.2: OpenTracks
+
+Bugfix:
+- Track icon wrongly shown in dialog
+- Textcolor for heartrate zone 1 was ignoring theme
+- Not all activityTypes were shown in dropdownlist
+- Crash due to color not found
+
+
@@ -0,0 +1,5 @@
+v4.3.0: OpenTracks
+
+Changes:
+- Allow backups (incl. encrypted to the Google)
+- Android 13: allow app-specific language settings
@@ -0,0 +1,8 @@
+v4.3.1: OpenTracks
+
+Changes:
+- Setting to skip voice announcements on device speaker
+
+Bugfix:
+- GPS disabled warning was falsely shown
+
@@ -0,0 +1,9 @@
+v4.3.2: OpenTracks
+
+Bugfix:
+- KML header was misformed (#1522)
+
+Developer:
+- Use Java 17 (multi-line text, switch)
+- API33: locale config is generated
+
@@ -0,0 +1,5 @@
+v4.3.3: OpenTracks
+
+Bugfixes:
+- Hidden fields were shown (introduced in v4.2.0)
+- Speed was shown instead of pace (introduced in v4.2.0)
@@ -0,0 +1,4 @@
+v4.3.4: OpenTracks
+
+Bugfix:
+- Android 13: regional locales could not be selected (introduced in v4.3.0)
@@ -0,0 +1,6 @@
+v4.3.5: OpenTracks
+
+Bugfix:
+- Sensor parsing had a overflow one off bug (#1559)
+- Insert marker: don't crash if no camera app is installed (#1561)
+
@@ -0,0 +1,4 @@
+v4.4.0: OpenTracks
+
+Changes:
+- Export all tracks as one file
@@ -0,0 +1,14 @@
+v4.5.0: OpenTracks
+
+Changes:
+- Material3 
+- App shortcut for aggregated statistics
+- New Unit: miles with meters
+
+Bugfix:
+- GPS disabled warnings shown repeatedly (#1429)
+
+Developer:
+- Use Java Records
+- Target API34
+- Refactor sensor handling
@@ -2,13 +2,13 @@ v3.19.0: OpenTracks

 Wijzigingen:
 - Ondersteuning voor Running Speed en Cadence (RCS) sensoren
- Bij het delen van een track wordt een afbeelding gemaakt
+- Bij delen van een track: maakt een deel-afbeelding
 - Niet trillen bij starten van opnemen
- Bij opnemen: UI toont recentst ontvangen hoogte, snelheid en richting (ook al is deze niet opgeslagen)
+- Bij opnemen: UI toont meest recente hoogte, snelheid en richting (zelfs als niet opgeslagen)

 Bugfix:
- Berekening van totale tijd mag geen pauze-tijd bevatten (vereist opnieuw importeren)
- (opnieuw) Gebruik aangepaste overzichten indien aanwezig
+- Berekening totale tijd mag geen pauze-tijd bevatten (vereist opnieuw importeren)
+- (opnieuw) Gebruik aanwezige aangepaste overzichten

 Ontwikkelaar:
 - Upgrade naar SDK31 en AGP7.0.0 (vereist JDK11)
@@ -5,4 +5,4 @@ Wijzigingen:
 - Gesproken meldingen van hartslag

 Bugfix:
- Crash due to race condition
+- Vastloper door race condities
@@ -0,0 +1,22 @@
+一個尊重您的隱私的運動蹤跡紀錄器。
+
+運動與戶外活動賦予幸福、技能與自信。
+
+由保持追蹤您的訓練來重視您的健康。
+紀錄您的跑步或健行，並且在您騎自行車時給您一台具有大螢幕的自行車電腦。
+用照片標記您一路上有趣的地點。
+保持紀錄非常詳細的統計資料以供分析。
+僅分享資料給您想要分享的其他人。
+
+* 語音播報。
+* 支援藍芽 LE 感測器：心律、速度與距離 (騎自行車)、踏頻 (騎自行車)、功率計 (騎自行車)。
+* 海拔上升與下降：通過氣壓感測器。
+* EGM2008 海拔顯示 (平均海平面以上)；匯出為 WGS84。
+* 匯出蹤跡資料為 KMZ (包含照片)、KML、GPX。
+* 沒有網路存取或額外的權限需求。
+* 深色與淺色主題，取決於系統設定。
+* 沒有廣告。
+
+此為 自由軟體 / 免費軟體 / 開放原始碼
+這意味您可以使用、學習、修改與分享此專案的原始碼。
+授權條款：Apache 2.0
@@ -0,0 +1 @@
+一個尊重您的隱私的運動蹤跡紀錄器。
@@ -0,0 +1 @@
+OpenTracks
@@ -1,2 +1,2 @@
 android.useAndroidX=true
-org.gradle.jvmargs=-Xmx1024m -XX:MaxPermSize=256m
+org.gradle.jvmargs=-Xmx1024m
@@ -1,5 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.1.1-all.zip
+networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,10 +80,10 @@ do
    esac
 done

-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit

 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
@@ -143,12 +143,16 @@ fi
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
    case $MAX_FD in #(
      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
        MAX_FD=$( ulimit -H -n ) ||
            warn "Could not query maximum file descriptor limit"
    esac
    case $MAX_FD in  #(
      '' | soft) :;; #(
      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
        ulimit -n "$MAX_FD" ||
            warn "Could not set maximum file descriptor limit to $MAX_FD"
    esac
@@ -205,6 +209,12 @@ set -- \
        org.gradle.wrapper.GradleWrapperMain \
        "$@"

+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
 # Use "xargs" to parse quoted args.
 #
 # With -n1 it outputs one arg per line, with the quotes and backslashes removed.
@@ -14,7 +14,7 @@
@rem limitations under the License.
@rem

-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
@rem ##########################################################################
@rem
@rem  Gradle startup script for Windows
@@ -25,7 +25,8 @@
 if "%OS%"=="Windows_NT" setlocal

 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%

@@ -40,7 +41,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome

 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 0 goto execute

 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -75,13 +76,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar

 :end
@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 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
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%

 :mainEnd
 if "%OS%"=="Windows_NT" endlocal
@@ -11,6 +11,7 @@ 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 de.dennisguse.opentracks.util.EspressoUtils.childAtPosition;
 import static de.dennisguse.opentracks.util.EspressoUtils.waitFor;

 import androidx.test.ext.junit.rules.ActivityScenarioRule;
@@ -30,7 +31,7 @@ public class EspressoDeleteTrackTest {
    public ActivityScenarioRule<TrackListActivity> mActivityTestRule = new ActivityScenarioRule<>(TrackListActivity.class);

    @Rule
-    public GrantPermissionRule mGrantPermissionRule = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
+    public GrantPermissionRule mGrantPermissionRule = TestUtil.createGrantPermissionRule();

    @Test
    public void espressoDeleteTrackTest() {
@@ -51,7 +52,15 @@ public class EspressoDeleteTrackTest {
        onData(anything()).inAdapterView(withId(R.id.track_list)).atPosition(0).perform(longClick());

        // open menu and delete selected track
-        onView(allOf(withContentDescription("More options"), isDisplayed()))
+        //TODO openActionBarOverflowOrOptionsMenu(); doesn't work
+        onView(
+                allOf(withContentDescription("More options"),
+                        childAtPosition(
+                                childAtPosition(
+                                        withId(androidx.appcompat.R.id.action_mode_bar),
+                                        1),
+                                2),
+                        isDisplayed()))
                .perform(click());

        onView(withText("Delete")).perform(click());
@@ -15,6 +15,8 @@ import static androidx.test.espresso.matcher.ViewMatchers.withText;
 import static org.hamcrest.Matchers.allOf;
 import static de.dennisguse.opentracks.util.EspressoUtils.waitFor;

+import android.Manifest;
+
 import androidx.test.espresso.ViewInteraction;
 import androidx.test.ext.junit.rules.ActivityScenarioRule;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
@@ -38,7 +40,7 @@ public class EspressoEditTrackRecordingTest {
    public ActivityScenarioRule<TrackListActivity> mActivityTestRule = new ActivityScenarioRule<>(TrackListActivity.class);

    @Rule
-    public GrantPermissionRule mGrantPermissionRule = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
+    public GrantPermissionRule mGrantPermissionRule = TestUtil.createGrantPermissionRule();

    @LargeTest
    @Test
@@ -13,6 +13,8 @@ import static org.hamcrest.Matchers.anything;
 import static de.dennisguse.opentracks.util.EspressoUtils.selectTabAtIndex;
 import static de.dennisguse.opentracks.util.EspressoUtils.waitFor;

+import android.Manifest;
+
 import androidx.test.espresso.ViewInteraction;
 import androidx.test.ext.junit.rules.ActivityScenarioRule;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
@@ -31,8 +33,7 @@ public class EspressoUITest {
    public ActivityScenarioRule<TrackListActivity> mActivityTestRule = new ActivityScenarioRule<>(TrackListActivity.class);

    @Rule
-    public GrantPermissionRule mGrantPermissionRule = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
-
+    public GrantPermissionRule mGrantPermissionRule = TestUtil.createGrantPermissionRule();
    @LargeTest
    @Test
    public void record_stop_resume_stop_finish() {
@@ -0,0 +1,18 @@
+package de.dennisguse.opentracks;
+
+import android.Manifest;
+import android.os.Build;
+
+import androidx.test.rule.GrantPermissionRule;
+
+import de.dennisguse.opentracks.test.BuildConfig;
+
+public class TestUtil {
+
+    public static GrantPermissionRule createGrantPermissionRule() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            return GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION, android.Manifest.permission.BLUETOOTH_CONNECT, Manifest.permission.POST_NOTIFICATIONS);
+        }
+        return GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION, android.Manifest.permission.BLUETOOTH_CONNECT);
+    }
+}
@@ -27,7 +27,7 @@ public class ChartPointTest {
        statistics.setTotalTime(Duration.ofSeconds(1000));

        // when
-        ChartPoint point = new ChartPoint(statistics, TrackStubUtils.createDefaultTrackPoint(), Speed.of(0), false, UnitSystem.IMPERIAL);
+        ChartPoint point = new ChartPoint(statistics, TrackStubUtils.createDefaultTrackPoint(), Speed.of(0), false, UnitSystem.IMPERIAL_FEET);

        // then
        assertEquals(1000000, (long) point.getTimeOrDistance());
@@ -96,16 +96,7 @@ public class TestDataUtil {
        return new TrackData(track, trackPoints, markers);
    }

-    public static class TrackData {
-        public final Track track;
-        public final List<TrackPoint> trackPoints;
-        public final List<Marker> markers;
-
-        public TrackData(Track track, List<TrackPoint> trackPoints, List<Marker> markers) {
-            this.track = track;
-            this.trackPoints = trackPoints;
-            this.markers = markers;
-        }
+    public record TrackData(Track track, List<TrackPoint> trackPoints, List<Marker> markers) {
    }


@@ -424,7 +424,7 @@ public class CustomContentProviderUtilsTest {
        Marker.Id markerId = new Marker.Id(System.currentTimeMillis());
        marker.setId(markerId);
        ContentValues contentValues = contentProviderUtils.createContentValues(marker);
-        assertEquals(markerId.getId(), contentValues.get(MarkerColumns._ID));
+        assertEquals(markerId.id(), contentValues.get(MarkerColumns._ID));
        assertEquals((int) (TestDataUtil.INITIAL_LONGITUDE * 1000000), contentValues.get(MarkerColumns.LONGITUDE));
        assertEquals(TEST_DESC, contentValues.get(MarkerColumns.DESCRIPTION));
    }
@@ -458,7 +458,7 @@ public class CustomContentProviderUtilsTest {
        when(cursorMock.getLong(columnIndex++)).thenReturn(trackId);

        Marker marker = contentProviderUtils.createMarker(cursorMock);
-        assertEquals(id, marker.getId().getId());
+        assertEquals(id, marker.getId().id());
        assertEquals(name, marker.getName());
        assertEquals(trackId, marker.getTrackId().getId());
    }
@@ -67,7 +67,7 @@ public class TrackSelectionTest extends TestCase {
    @Test
    public void testFilterBuildSelection_onlyOneCategory() {
        // given
-        TrackSelection filter = new TrackSelection().addCategory("running");
+        TrackSelection filter = new TrackSelection().addActivityType("running");

        // when
        SelectionData selection = filter.buildSelection();
@@ -82,10 +82,10 @@ public class TrackSelectionTest extends TestCase {
    public void testFilterBuildSelection_severalCategories() {
        // given
        TrackSelection filter = new TrackSelection()
-                .addCategory("running")
-                .addCategory("road biking")
-                .addCategory("mountain biking")
-                .addCategory("trail walking");
+                .addActivityType("running")
+                .addActivityType("road biking")
+                .addActivityType("mountain biking")
+                .addActivityType("trail walking");

        // when
        SelectionData selection = filter.buildSelection();
@@ -136,8 +136,8 @@ public class TrackSelectionTest extends TestCase {
                .addTrackId(trackId1)
                .addTrackId(trackId2)
                .addTrackId(trackId3)
-                .addCategory("running")
-                .addCategory("road biking");
+                .addActivityType("running")
+                .addActivityType("road biking");

        // when
        SelectionData selection = filter.buildSelection();
@@ -188,8 +188,8 @@ public class TrackSelectionTest extends TestCase {
        long oneDay = 24 * 60 * 60 * 1000;

        TrackSelection filter = new TrackSelection()
-                .addCategory("running")
-                .addCategory("road biking")
+                .addActivityType("running")
+                .addActivityType("road biking")
                .addDateRange(instant, instant.plusMillis(oneDay));

        // when
@@ -35,7 +35,7 @@ public class DistanceFormatterTest {
    public void testFormatDistance_imperial() {
        DistanceFormatter formatter = DistanceFormatter.Builder()
                .setDecimalCount(2)
-                .setUnit(UnitSystem.IMPERIAL)
+                .setUnit(UnitSystem.IMPERIAL_FEET)
                .build(context);

        // A large number in imperial
@@ -36,7 +36,7 @@ public class SpeedFormatterTest {
    public void testGetSpeedParts_pace_imperial() {
        SpeedFormatter formatter = SpeedFormatter.Builder()
                .setDecimalCount(2)
-                .setUnit(UnitSystem.IMPERIAL)
+                .setUnit(UnitSystem.IMPERIAL_FEET)
                .setReportSpeedOrPace(false)
                .build(context);

@@ -72,7 +72,7 @@ public class SpeedFormatterTest {
    public void testGetSpeedParts_speed_imperial() {
        SpeedFormatter formatter = SpeedFormatter.Builder()
                .setDecimalCount(2)
-                .setUnit(UnitSystem.IMPERIAL)
+                .setUnit(UnitSystem.IMPERIAL_FEET)
                .setReportSpeedOrPace(true)
                .build(context);

@@ -27,21 +27,23 @@ public class KmlTrackExporterTest {
     */
    @Test
    public void writeCloseSegment_only_write_sensordata_if_present() {
-        String expected = "<when>1970-01-01T00:00:00Z</when>\n" +
-                "<coord/>\n" +
-                "<when>1970-01-01T01:00:00+01:00</when>\n" +
-                "<coord/>\n" +
-                "<ExtendedData>\n" +
-                "<SchemaData schemaUrl=\"#schema\">\n" +
-                "</SchemaData>\n" +
-                "</ExtendedData>\n" +
-                "</Track>\n";
+        String expected = """
+                <when>1970-01-01T00:00:00Z</when>
+                <coord/>
+                <when>1970-01-01T01:00:00+01:00</when>
+                <coord/>
+                <ExtendedData>
+                <SchemaData schemaUrl="#schema">
+                </SchemaData>
+                </ExtendedData>
+                </Track>
+                """;

        // given
        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.SEGMENT_START_MANUAL, Instant.ofEpochSecond(0));

        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-        KMLTrackExporter kmlTrackWriter = (KMLTrackExporter) TrackFileFormat.KML_WITH_TRACKDETAIL_AND_SENSORDATA.createTrackExporter(context);
+        KMLTrackExporter kmlTrackWriter = (KMLTrackExporter) TrackFileFormat.KML_WITH_TRACKDETAIL_AND_SENSORDATA.createTrackExporter(context, null);
        kmlTrackWriter.prepare(outputStream);

        kmlTrackWriter.writeTrackPoint(ZoneOffset.UTC, trackPoint);
@@ -12,7 +12,6 @@ import android.net.Uri;
 import android.os.Build;
 import android.os.Looper;

-import androidx.annotation.NonNull;
 import androidx.preference.PreferenceManager;
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
@@ -58,7 +57,6 @@ import de.dennisguse.opentracks.data.models.TrackPoint;
 import de.dennisguse.opentracks.io.file.TrackFileFormat;
 import de.dennisguse.opentracks.io.file.exporter.TrackExporter;
 import de.dennisguse.opentracks.sensors.AltitudeSumManager;
-import de.dennisguse.opentracks.sensors.BluetoothRemoteSensorManager;
 import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingCadence;
 import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingDistanceSpeed;
 import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingPower;
@@ -98,7 +96,7 @@ public class ExportImportTest {
    private final ContentProviderUtils contentProviderUtils = new ContentProviderUtils(context);

    private static final String TRACK_ICON = "the track icon";
-    private static final String TRACK_CATEGORY = "the category";
+    private static final String TRACK_ACTIVITY_TYPE = "the activity type";
    private static final String TRACK_DESCRIPTION = "the description";

    private File tmpFile;
@@ -166,7 +164,7 @@ public class ExportImportTest {
        service.insertMarker("Marker 2", "Marker 2 category", "Marker 2 desc", null);

        trackPointCreator.setClock("2020-02-02T02:02:18Z");
-        trackPointCreator.setRemoteSensorManager(new BluetoothRemoteSensorManager(context, null, trackPointCreator));
+        trackPointCreator.getSensorManager().sensorDataSet = new SensorDataSet();
        service.endCurrentTrack();

        trackPointCreator.setClock("2020-02-02T02:03:20Z");
@@ -179,12 +177,11 @@ public class ExportImportTest {
        sendLocation(trackPointCreator, "2020-02-02T02:03:23Z", 3, 16.001, 10, 27, 15, 10, 0);

        trackPointCreator.setClock("2020-02-02T02:03:24Z");
-        trackPointCreator.setRemoteSensorManager(new BluetoothRemoteSensorManager(context, null, trackPointCreator));
        service.endCurrentTrack();

        Track track = contentProviderUtils.getTrack(trackId);
        track.setIcon(TRACK_ICON);
-        track.setCategory(TRACK_CATEGORY);
+        track.setActivityType(TRACK_ACTIVITY_TYPE);
        track.setDescription(TRACK_DESCRIPTION);
        contentProviderUtils.updateTrack(track);

@@ -204,11 +201,11 @@ public class ExportImportTest {
        // given
        Track track = contentProviderUtils.getTrack(trackId);

-        TrackExporter trackExporter = TrackFileFormat.KMZ_WITH_TRACKDETAIL_AND_SENSORDATA.createTrackExporter(context);
+        TrackExporter trackExporter = TrackFileFormat.KMZ_WITH_TRACKDETAIL_AND_SENSORDATA.createTrackExporter(context, contentProviderUtils);

        // when
        // 1. export
-        trackExporter.writeTrack(track, context.getContentResolver().openOutputStream(tmpFileUri));
+        trackExporter.writeTrack(List.of(track), context.getContentResolver().openOutputStream(tmpFileUri));
        contentProviderUtils.deleteTrack(context, trackId);

        // 2. import
@@ -219,7 +216,7 @@ public class ExportImportTest {
        // 1. track
        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
        assertNotNull(importedTrack);
-        assertEquals(track.getCategory(), importedTrack.getCategory());
+        assertEquals(track.getActivityType(), importedTrack.getActivityType());
        assertEquals(track.getDescription(), importedTrack.getDescription());
        assertEquals(track.getName(), importedTrack.getName());
        assertEquals(track.getIcon(), importedTrack.getIcon());
@@ -287,10 +284,10 @@ public class ExportImportTest {
        editor.commit();
        Track track = contentProviderUtils.getTrack(trackId);

-        TrackExporter trackExporter = TrackFileFormat.KML_WITH_TRACKDETAIL_AND_SENSORDATA.createTrackExporter(context);
+        TrackExporter trackExporter = TrackFileFormat.KML_WITH_TRACKDETAIL_AND_SENSORDATA.createTrackExporter(context, contentProviderUtils);

        // when
-        trackExporter.writeTrack(track, context.getContentResolver().openOutputStream(tmpFileUri));
+        trackExporter.writeTrack(List.of(track), context.getContentResolver().openOutputStream(tmpFileUri));

        // 2. import
        InputStream inputStream = context.getContentResolver().openInputStream(tmpFileUri);
@@ -310,11 +307,11 @@ public class ExportImportTest {
        // given
        Track track = contentProviderUtils.getTrack(trackId);

-        TrackExporter trackExporter = TrackFileFormat.GPX.createTrackExporter(context);
+        TrackExporter trackExporter = TrackFileFormat.GPX.createTrackExporter(context, contentProviderUtils);

        // when
        // 1. export
-        trackExporter.writeTrack(track, context.getContentResolver().openOutputStream(tmpFileUri));
+        trackExporter.writeTrack(List.of(track), context.getContentResolver().openOutputStream(tmpFileUri));
        contentProviderUtils.deleteTrack(context, trackId);

        // 2. import
@@ -326,7 +323,7 @@ public class ExportImportTest {
        // 1. track
        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
        assertNotNull(importedTrack);
-        assertEquals(track.getCategory(), importedTrack.getCategory());
+        assertEquals(track.getActivityType(), importedTrack.getActivityType());
        assertEquals(track.getDescription(), importedTrack.getDescription());
        assertEquals(track.getName(), importedTrack.getName());

@@ -428,11 +425,11 @@ public class ExportImportTest {
        editor.commit();
        Track track = contentProviderUtils.getTrack(trackId);

-        TrackExporter trackExporter = TrackFileFormat.GPX.createTrackExporter(context);
+        TrackExporter trackExporter = TrackFileFormat.GPX.createTrackExporter(context, contentProviderUtils);

        // when
        // 1. export
-        trackExporter.writeTrack(track, context.getContentResolver().openOutputStream(tmpFileUri));
+        trackExporter.writeTrack(List.of(track), context.getContentResolver().openOutputStream(tmpFileUri));

        // 2. import
        InputStream inputStream = context.getContentResolver().openInputStream(tmpFileUri);
@@ -453,11 +450,11 @@ public class ExportImportTest {
        // given
        Track track = contentProviderUtils.getTrack(trackId);

-        TrackExporter trackExporter = TrackFileFormat.CSV.createTrackExporter(context);
+        TrackExporter trackExporter = TrackFileFormat.CSV.createTrackExporter(context, contentProviderUtils);

        // when
        // 1. export
-        trackExporter.writeTrack(track, context.getContentResolver().openOutputStream(tmpFileUri));
+        trackExporter.writeTrack(List.of(track), context.getContentResolver().openOutputStream(tmpFileUri));
        contentProviderUtils.deleteTrack(context, trackId);

        // then
@@ -495,37 +492,34 @@ public class ExportImportTest {
    }

    private void mockBLESensorData(TrackPointCreator trackPointCreator, Float speed, Distance distance, float heartRate, float cadence, Float power) {
-        trackPointCreator.setRemoteSensorManager(new BluetoothRemoteSensorManager(context, null, trackPointCreator) {
-            @Override
-            public SensorDataSet fill(@NonNull TrackPoint trackPoint) {
-                SensorDataSet sensorDataSet = new SensorDataSet();
-                sensorDataSet.set(new SensorDataCyclingPower("power", "power", Power.of(power)));
-                sensorDataSet.set(new SensorDataHeartRate("heartRate", "heartRate", HeartRate.of(heartRate)));

-                SensorDataCyclingCadence cyclingCadence = Mockito.mock(SensorDataCyclingCadence.class);
-                Mockito.when(cyclingCadence.hasValue()).thenReturn(true);
-                Mockito.when(cyclingCadence.getValue()).thenReturn(Cadence.of(cadence));
-                sensorDataSet.set(cyclingCadence);
+            SensorDataSet sensorDataSet = new SensorDataSet();
+            sensorDataSet.set(new SensorDataCyclingPower("power", "power", Power.of(power)));
+            sensorDataSet.set(new SensorDataHeartRate("heartRate", "heartRate", HeartRate.of(heartRate)));

-                if (distance != null && speed != null) {
-                    SensorDataCyclingDistanceSpeed.Data distanceSpeedData = Mockito.mock(SensorDataCyclingDistanceSpeed.Data.class);
-                    Mockito.when(distanceSpeedData.getDistanceOverall()).thenReturn(distance);
-                    Mockito.when(distanceSpeedData.getSpeed()).thenReturn(Speed.of(speed));
-                    SensorDataCyclingDistanceSpeed distanceSpeed = Mockito.mock(SensorDataCyclingDistanceSpeed.class);
-                    Mockito.when(distanceSpeed.hasValue()).thenReturn(true);
-                    Mockito.when(distanceSpeed.getValue()).thenReturn(distanceSpeedData);
-                    sensorDataSet.set(distanceSpeed);
-                }
+            SensorDataCyclingCadence cyclingCadence = Mockito.mock(SensorDataCyclingCadence.class);
+            Mockito.when(cyclingCadence.hasValue()).thenReturn(true);
+            Mockito.when(cyclingCadence.getValue()).thenReturn(Cadence.of(cadence));
+            sensorDataSet.set(cyclingCadence);

-                sensorDataSet.fillTrackPoint(trackPoint);
-                return sensorDataSet;
-            }
-        });
-        trackPointCreator.onChange(new SensorDataSet());
+        if (distance != null && speed != null) {
+            SensorDataCyclingDistanceSpeed.Data distanceSpeedData = Mockito.mock(SensorDataCyclingDistanceSpeed.Data.class);
+            Mockito.when(distanceSpeedData.getDistanceOverall()).thenReturn(distance);
+            Mockito.when(distanceSpeedData.getSpeed()).thenReturn(Speed.of(speed));
+            SensorDataCyclingDistanceSpeed distanceSpeed = Mockito.mock(SensorDataCyclingDistanceSpeed.class);
+            Mockito.when(distanceSpeed.hasValue()).thenReturn(true);
+            Mockito.when(distanceSpeed.getValue()).thenReturn(distanceSpeedData);
+            sensorDataSet.set(distanceSpeed);
+        }
+
+        trackPointCreator.getSensorManager().sensorDataSet = sensorDataSet;
+        trackPointCreator.onChange(sensorDataSet);
+
+        //TODO Might require: getSensorManager().sensorDataSet = new SensorDataSet()
    }

    private void mockAltitudeChange(TrackPointCreator trackPointCreator, float altitudeGain) {
-        AltitudeSumManager altitudeSumManager = trackPointCreator.getAltitudeSumManager();
+        AltitudeSumManager altitudeSumManager = trackPointCreator.getSensorManager().getAltitudeSumManager();
        altitudeSumManager.setAltitudeGain_m(altitudeGain);
        altitudeSumManager.setAltitudeLoss_m(altitudeGain);
    }
@@ -544,6 +538,6 @@ public class ExportImportTest {
        mockAltitudeChange(trackPointCreator, altitudeGain);

        trackPointCreator.setClock(time);
-        trackPointCreator.getGpsHandler().onLocationChanged(location);
+        trackPointCreator.onChange(location);
    }
 }
@@ -79,7 +79,7 @@ public class GPXTrackImporterTest {
        // 2. track
        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
        assertNotNull(importedTrack);
-        assertEquals("the category", importedTrack.getCategory());
+        assertEquals("the category", importedTrack.getActivityType());
        assertEquals("the description", importedTrack.getDescription());
        assertEquals("2021-01-07 22:51", importedTrack.getName());
        assertEquals("UNKNOWN", importedTrack.getIcon());
@@ -133,7 +133,7 @@ public class GPXTrackImporterTest {
        // 2. track
        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
        assertNotNull(importedTrack);
-        assertEquals("", importedTrack.getCategory());
+        assertEquals("", importedTrack.getActivityType());
        assertEquals("", importedTrack.getDescription());
        assertEquals("20210907_213924.gpx", importedTrack.getName());
        assertEquals("", importedTrack.getIcon());
@@ -181,7 +181,7 @@ public class GPXTrackImporterTest {
        // 2. track
        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
        assertNotNull(importedTrack);
-        assertEquals("", importedTrack.getCategory());
+        assertEquals("", importedTrack.getActivityType());
        assertEquals("", importedTrack.getDescription());
        assertEquals("20210907_213924.gpx", importedTrack.getName());
        assertEquals("", importedTrack.getIcon());
@@ -231,8 +231,8 @@ public class GPXTrackImporterTest {
        importTrackId = importer.importFile(inputStream).get(0);
        Track importedTrack = contentProviderUtils.getTrack(importTrackId);

-        TrackExporter trackExporter = TrackFileFormat.GPX.createTrackExporter(context);
-        trackExporter.writeTrack(importedTrack, outputStream);
+        TrackExporter trackExporter = TrackFileFormat.GPX.createTrackExporter(context, contentProviderUtils);
+        trackExporter.writeTrack(List.of(importedTrack), outputStream);

        // then
        String expected = new BufferedReader(
@@ -70,7 +70,7 @@ public class KMLTrackImporterTest {
        // 1. track
        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
        assertNotNull(importedTrack);
-        assertEquals("", importedTrack.getCategory());
+        assertEquals("", importedTrack.getActivityType());
        assertEquals("", importedTrack.getDescription());
        assertEquals("", importedTrack.getName());
        assertEquals("", importedTrack.getIcon());
@@ -119,7 +119,7 @@ public class KMLTrackImporterTest {
        // 1. track
        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
        assertNotNull(importedTrack);
-        assertEquals("", importedTrack.getCategory());
+        assertEquals("", importedTrack.getActivityType());
        assertEquals("", importedTrack.getDescription());
        assertEquals("", importedTrack.getName());
        assertEquals("", importedTrack.getIcon());
@@ -159,7 +159,7 @@ public class KMLTrackImporterTest {
        // 1. track
        Track importedTrack = contentProviderUtils.getTrack(importTrackId);
        assertNotNull(importedTrack);
-        assertEquals("unknown", importedTrack.getCategory());
+        assertEquals("unknown", importedTrack.getActivityType());
        assertEquals("Test Track", importedTrack.getDescription());
        assertEquals("2020-11-28 18:06", importedTrack.getName());
        assertEquals("UNKNOWN", importedTrack.getIcon());
@@ -1,47 +1,55 @@
 package de.dennisguse.opentracks.sensors;

+import static org.mockito.Mockito.when;
+
 import org.junit.Assert;
-import org.junit.Before;
 import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnitRunner;
+
+import de.dennisguse.opentracks.data.models.AtmosphericPressure;
+import de.dennisguse.opentracks.sensors.driver.BarometerInternal;

 /**
 * NOTE: Test data is completely artificial.
 */
+@RunWith(MockitoJUnitRunner.class)
 public class AltitudeSumManagerTest {

-    private final AltitudeSumManager subject = new AltitudeSumManager();
-
    private static void addSensorValue(AltitudeSumManager altitudeSumManager, float[] values) {
        for (float f : values) {
-            altitudeSumManager.onSensorValueChanged(f);
+            altitudeSumManager.onSensorValueChanged(AtmosphericPressure.ofHPA(f));
        }
    }

-    @Before
-    public void setUp() {
-        subject.reset();
-    }
+    @Mock
+    BarometerInternal driver;

    @Test
    public void getAltitudeGainLoss_downhill() {
        // given
-        subject.setConnected(true);
+        AltitudeSumManager subject = new AltitudeSumManager(driver);
+
+        when(driver.isConnected()).thenReturn(true);

        // then
-        addSensorValue(subject, new float[]{1015f, 1015.01f, 1015.02f, 1015.03f, 1015.04f, 1015.05f, 1015.06f, 1015.07f, 1015.08f, 1015.09f, 1015.10f, 1015.11f, 1015.12f, 1015.13f, 1015.14f, 1015.15f});
+        addSensorValue(subject, new float[]{1015f, 1015.01f, 1015.02f, 1015.03f, 1015.04f, 1015.05f, 1015.06f, 1015.07f, 1015.08f, 1015.09f, 1015.10f, 1015.11f, 1015.12f, 1015.13f, 1018f, 1018.1f, 1018.1f, 1018.1f, 1018.1f});

        // then
        Assert.assertEquals(0f, subject.getAltitudeGain_m(), 0.01);
-        Assert.assertEquals(48.0, subject.getAltitudeLoss_m(), 0.01);
+        Assert.assertEquals(15f, subject.getAltitudeLoss_m(), 0.01);
    }

    @Test
    public void sensorUnavailable() {
        // given
-        subject.setConnected(false);
+        AltitudeSumManager subject = new AltitudeSumManager(driver);
+
+        when(driver.isConnected()).thenReturn(true);

        // then
-        subject.onSensorValueChanged(999f);
+        subject.onSensorValueChanged(AtmosphericPressure.ofHPA(999f));

        // then
        Assert.assertNull(subject.getAltitudeGain_m());
@@ -7,8 +7,10 @@ import android.bluetooth.BluetoothGattCharacteristic;

 import org.junit.Test;

+import de.dennisguse.opentracks.data.models.AtmosphericPressure;
 import de.dennisguse.opentracks.data.models.Cadence;
 import de.dennisguse.opentracks.data.models.Distance;
+import de.dennisguse.opentracks.data.models.HeartRate;
 import de.dennisguse.opentracks.data.models.Speed;
 import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingCadenceAndDistanceSpeed;
 import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingPower;
@@ -19,32 +21,45 @@ public class BluetoothUtilsTest {
    @Test
    public void parseHeartRate_uint8() {
        // given
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.HEARTRATE.getServiceUUID(), 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.HEARTRATE.serviceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0x02, 0x3C});

        // when
-        int heartRate = BluetoothUtils.parseHeartRate(characteristic);
+        HeartRate heartRate = BluetoothUtils.parseHeartRate(characteristic);

        // then
-        assertEquals(60, heartRate);
+        assertEquals(HeartRate.of(60), heartRate);
    }

    @Test
    public void parseHeartRate_uint16() {
        // given
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.HEARTRATE.getServiceUUID(), 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.HEARTRATE.serviceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0x01, 0x01, 0x01});

        // when
-        int heartRate = BluetoothUtils.parseHeartRate(characteristic);
+        HeartRate heartRate = BluetoothUtils.parseHeartRate(characteristic);

        // then
-        assertEquals(257, heartRate);
+        assertEquals(HeartRate.of(257), heartRate);
+    }
+
+    @Test
+    public void parseEnvironmentalSensing_Pa() {
+        // given
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.BAROMETRIC_PRESSURE.serviceUUID(), 0, 0);
+        characteristic.setValue(new byte[]{(byte) 0xB2, (byte) 0x48, (byte) 0x0F, (byte) 0x00});
+
+        // when
+        AtmosphericPressure pressure = BluetoothUtils.parseEnvironmentalSensing(characteristic);
+
+        // then
+        assertEquals(AtmosphericPressure.ofPA(100165), pressure);
    }

    @Test
    public void parseCyclingSpeedCadence_crankOnly() {
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_SPEED_CADENCE.getServiceUUID(), 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_SPEED_CADENCE.serviceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0x02, (byte) 0xC8, 0x00, 0x00, 0x00, 0x06, (byte) 0x99});

        // when
@@ -57,7 +72,7 @@ public class BluetoothUtilsTest {

    @Test
    public void parseCyclingSpeedCadence_wheelOnly() {
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_SPEED_CADENCE.getServiceUUID(), 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_SPEED_CADENCE.serviceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0x01, (byte) 0xFF, (byte) 0xFF, 0, 1, 0x45, (byte) 0x99});

        // when
@@ -70,7 +85,7 @@ public class BluetoothUtilsTest {

    @Test
    public void parseCyclingSpeedCadence_crankWheel() {
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_SPEED_CADENCE.getServiceUUID(), 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_SPEED_CADENCE.serviceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0x03, (byte) 0xC8, 0x00, 0x00, 0x01, 0x06, (byte) 0x99, (byte) 0xE1, 0x00, 0x45, (byte) 0x99});

        // when
@@ -83,34 +98,34 @@ public class BluetoothUtilsTest {

    @Test
    public void parseCyclingPower_power() {
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_POWER.getServiceUUID(), 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_POWER.serviceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0, 0, 40, 0});

        // when
        SensorDataCyclingPower.Data powerCadence = BluetoothUtils.parseCyclingPower("", "", characteristic);

        // then
-        assertEquals(40, powerCadence.getPower().getValue().getW(), 0.01);
+        assertEquals(40, powerCadence.power().getValue().getW(), 0.01);
    }

    @Test
    public void parseCyclingPower_power_with_cadence() {
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_POWER.getServiceUUID(), 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_POWER.serviceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0x2C, 0x00, 0x00, 0x00, (byte) 0x9F, 0x00, 0x0C, 0x00, (byte) 0xE5, 0x42});

        // when
        SensorDataCyclingPower.Data powerCadence = BluetoothUtils.parseCyclingPower("", "", characteristic);

        // then
-        assertEquals(0, powerCadence.getPower().getValue().getW(), 0.01);
+        assertEquals(0, powerCadence.power().getValue().getW(), 0.01);

-        assertEquals(12, powerCadence.getCadence().getCrankRevolutionsCount());
-        assertEquals(17125, powerCadence.getCadence().getCrankRevolutionsTime());
+        assertEquals(12, powerCadence.cadence().getCrankRevolutionsCount());
+        assertEquals(17125, powerCadence.cadence().getCrankRevolutionsTime());
    }

    @Test
    public void parseRunningSpeedAndCadence_with_distance() {
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.RUNNING_SPEED_CADENCE.getServiceUUID(), 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.RUNNING_SPEED_CADENCE.serviceUUID(), 0, 0);
        characteristic.setValue(new byte[]{2, 0, 5, 80, (byte) 0xFF, (byte) 0xFF, 0, 1});

        // when
@@ -5,6 +5,8 @@ import static org.junit.Assert.assertNull;

 import org.junit.Test;

+import de.dennisguse.opentracks.data.models.AtmosphericPressure;
+
 public class PressureSensorUtilsTest {

    // real data at 500Hz stationary
@@ -12,11 +14,11 @@ public class PressureSensorUtilsTest {
    public void altitudeChanges_none() {
        // given
        float[] sensorValues_hPa = new float[]{1015.6876f, 1015.699f, 1015.70905f, 1015.71075f, 1015.7224f, 1015.72f, 1015.7373f, 1015.7481f, 1015.74133f, 1015.73553f, 1015.7462f, 1015.74896f, 1015.752f, 1015.754f, 1015.7456f, 1015.73303f, 1015.7288f, 1015.7239f, 1015.7298f, 1015.7387f, 1015.72534f, 1015.72577f, 1015.72797f, 1015.71796f, 1015.7113f, 1015.7097f, 1015.7096f, 1015.7013f, 1015.7072f, 1015.71063f, 1015.7088f, 1015.7115f, 1015.713f, 1015.7121f, 1015.7062f, 1015.7062f, 1015.6994f, 1015.69617f, 1015.68945f, 1015.698f, 1015.6913f, 1015.69696f, 1015.69293f, 1015.6955f, 1015.6928f, 1015.6939f, 1015.68787f, 1015.6881f, 1015.68536f, 1015.68726f, 1015.6879f, 1015.6904f, 1015.6937f, 1015.69476f, 1015.7046f, 1015.7019f, 1015.7079f, 1015.71124f, 1015.71216f, 1015.71436f, 1015.7171f, 1015.7186f, 1015.7186f, 1015.7246f, 1015.72046f, 1015.7211f, 1015.72375f, 1015.7194f, 1015.72125f, 1015.7161f, 1015.71185f, 1015.7188f, 1015.721f, 1015.7252f, 1015.72266f, 1015.7236f, 1015.72614f, 1015.7266f, 1015.7344f, 1015.7376f, 1015.7337f, 1015.7253f, 1015.71875f, 1015.7219f, 1015.7219f, 1015.7317f, 1015.7284f, 1015.73444f, 1015.73584f, 1015.7369f, 1015.73254f, 1015.7369f, 1015.7336f, 1015.73254f, 1015.73676f, 1015.74176f, 1015.74506f, 1015.7478f, 1015.755f, 1015.7515f, 1015.7543f, 1015.7459f, 1015.7468f, 1015.7492f, 1015.74585f, 1015.74756f, 1015.74756f, 1015.75085f, 1015.754f, 1015.75336f, 1015.7568f, 1015.75165f, 1015.761f, 1015.7527f, 1015.75684f, 1015.7635f, 1015.7585f, 1015.7552f, 1015.7475f, 1015.74506f, 1015.7542f, 1015.75586f, 1015.74176f, 1015.74414f, 1015.7501f, 1015.751f, 1015.7478f, 1015.755f, 1015.75836f, 1015.7592f, 1015.75256f, 1015.7559f, 1015.76654f, 1015.76154f, 1015.766f, 1015.77014f, 1015.76904f, 1015.76013f, 1015.7674f, 1015.76514f, 1015.7674f, 1015.7635f, 1015.76404f, 1015.7607f, 1015.754f, 1015.7574f, 1015.7607f, 1015.7607f, 1015.7607f, 1015.754f, 1015.7567f, 1015.7616f, 1015.7643f, 1015.7666f, 1015.7609f, 1015.766f, 1015.76764f, 1015.755f, 1015.75757f, 1015.74927f, 1015.74927f, 1015.7426f, 1015.745f, 1015.745f, 1015.7409f, 1015.7376f, 1015.7326f, 1015.74164f, 1015.74664f, 1015.745f, 1015.7459f, 1015.7502f, 1015.7493f, 1015.7476f, 1015.7493f, 1015.751f, 1015.7601f, 1015.76434f, 1015.766f, 1015.756f, 1015.7617f, 1015.7623f, 1015.76404f, 1015.76733f, 1015.7607f, 1015.7623f, 1015.76337f, 1015.7584f, 1015.7573f, 1015.7502f, 1015.7534f, 1015.7534f, 1015.7601f, 1015.75684f, 1015.7518f, 1015.75574f, 1015.7524f, 1015.7507f, 1015.7484f, 1015.7502f, 1015.7534f, 1015.7623f, 1015.75903f, 1015.75574f, 1015.75574f, 1015.7573f, 1015.7524f, 1015.75574f, 1015.75574f, 1015.7607f, 1015.7573f, 1015.754f, 1015.74677f, 1015.754f, 1015.75574f, 1015.75903f, 1015.7573f, 1015.7551f, 1015.7573f, 1015.754f, 1015.7507f, 1015.7374f, 1015.739f, 1015.73566f, 1015.73566f, 1015.7367f, 1015.7417f, 1015.7417f, 1015.739f, 1015.74835f, 1015.74567f, 1015.7517f, 1015.74066f, 1015.7374f, 1015.739f, 1015.7417f, 1015.73065f, 1015.72894f, 1015.73505f, 1015.73334f, 1015.74005f, 1015.74005f, 1015.7367f, 1015.7434f, 1015.744f, 1015.7423f, 1015.7384f, 1015.739f, 1015.7374f, 1015.7374f, 1015.7374f, 1015.7341f, 1015.73505f, 1015.7341f, 1015.7267f, 1015.72833f, 1015.7234f, 1015.7167f, 1015.725f, 1015.7217f, 1015.7234f, 1015.73004f, 1015.7324f, 1015.7423f, 1015.74005f, 1015.73505f, 1015.73004f, 1015.739f, 1015.7417f, 1015.74567f, 1015.74066f, 1015.74146f, 1015.74146f, 1015.73816f, 1015.7274f, 1015.72906f, 1015.7274f, 1015.7341f, 1015.739f, 1015.744f, 1015.7417f, 1015.7374f, 1015.7324f, 1015.73816f, 1015.74146f, 1015.7374f, 1015.7341f, 1015.7365f, 1015.7365f, 1015.74146f, 1015.74414f, 1015.7475f, 1015.7448f, 1015.74146f, 1015.74585f, 1015.7475f, 1015.75146f, 1015.75146f, 1015.7591f, 1015.75476f, 1015.7614f, 1015.75476f, 1015.7492f, 1015.74817f, 1015.7498f, 1015.7515f, 1015.75586f, 1015.7509f, 1015.7448f, 1015.7525f, 1015.7581f, 1015.7592f};
-        float firstSensorValue = sensorValues_hPa[0];
+        AtmosphericPressure firstSensorValue = AtmosphericPressure.ofHPA(sensorValues_hPa[0]);

        // when // then
        for (float v : sensorValues_hPa) {
-            assertNull(PressureSensorUtils.computeChanges(firstSensorValue, v));
+            assertNull(PressureSensorUtils.computeChanges(firstSensorValue, AtmosphericPressure.ofHPA(v)));
        }
    }

@@ -25,25 +27,25 @@ public class PressureSensorUtilsTest {
    @Test
    public void computeChanges_downhill() {
        float[] sensorValues_hPa = new float[]{1015f, 1015.01f, 1015.02f, 1015.03f, 1015.04f, 1015.05f, 1015.06f, 1015.07f, 1015.08f, 1015.09f, 1015.10f, 1015.11f, 1015.12f, 1015.13f, 1018f, 1018.1f, 1018.1f, 1018.1f, 1018.1f};
-        float firstSensorValue = sensorValues_hPa[0];
+        AtmosphericPressure firstSensorValue = AtmosphericPressure.ofHPA(sensorValues_hPa[0]);

        // when
        float altitudeGain_m = 0;
        float altitudeLoss = 0;
-        float lastUsedPressureValue_hPa = firstSensorValue;
+        AtmosphericPressure lastUsedPressureValue = firstSensorValue;

        for (float v : sensorValues_hPa) {
-            PressureSensorUtils.AltitudeChange altitudeChange = PressureSensorUtils.computeChanges(lastUsedPressureValue_hPa, v);
+            PressureSensorUtils.AltitudeChange altitudeChange = PressureSensorUtils.computeChanges(lastUsedPressureValue, AtmosphericPressure.ofHPA(v));
            if (altitudeChange != null) {
                altitudeGain_m += altitudeChange.getAltitudeGain_m();
                altitudeLoss += altitudeChange.getAltitudeLoss_m();
-                lastUsedPressureValue_hPa = altitudeChange.getCurrentSensorValue_hPa();
+                lastUsedPressureValue = altitudeChange.currentSensorValue();
            }
        }

        // then
        assertEquals(0f, altitudeGain_m, 0.01);
        assertEquals(15.0f, altitudeLoss, 0.01);
-        assertEquals(1016.80f, lastUsedPressureValue_hPa, 0.01); //Expect exponential smoothing
+        assertEquals(1016.80f, lastUsedPressureValue.getHPA(), 0.01); //Expect exponential smoothing
    }
 }
@@ -11,13 +11,44 @@ public class UintUtilsTest {
        assertEquals(0, UintUtils.diff(1, 1, UintUtils.UINT16_MAX));
        assertEquals(1, UintUtils.diff(2, 1, UintUtils.UINT16_MAX));
        assertEquals(3, UintUtils.diff(5, 2, UintUtils.UINT16_MAX));
-        assertEquals(65534, UintUtils.diff(1, 2, UintUtils.UINT16_MAX));
-
+        assertEquals(65535, UintUtils.diff(1, 2, UintUtils.UINT16_MAX));     /* unsigned 16 arithmetic is modulo UINT16_MAX + 1, not modulo UINT16_MAX */
        assertEquals(65530, UintUtils.diff(UintUtils.UINT16_MAX, 5, UintUtils.UINT16_MAX));
+
+        /*   Test modulo arithmetic for arguments that are out of range */
+
+        if (false) {   /*  false means UintUtils.diff() throws if arguments out of range */
+            assertEquals(0, UintUtils.diff(65537, 1, UintUtils.UINT16_MAX));
+            assertEquals(0, UintUtils.diff(1, 65537, UintUtils.UINT16_MAX));
+            assertEquals(0, UintUtils.diff(65537, 65537, UintUtils.UINT16_MAX));
+            assertEquals(0, UintUtils.diff(-65535, 1, UintUtils.UINT16_MAX));
+            assertEquals(0, UintUtils.diff(1, -65535, UintUtils.UINT16_MAX));
+            assertEquals(0, UintUtils.diff(-65535, -65535, UintUtils.UINT16_MAX));
+            assertEquals(0, UintUtils.diff(-65535, 65537, UintUtils.UINT16_MAX));
+            assertEquals(0, UintUtils.diff(65537, -65535, UintUtils.UINT16_MAX));
+        }
+
+        /*  The following tests are the above, but for 32-bit unsigned. */
+
+        assertEquals(0, UintUtils.diff(1, 1, UintUtils.UINT32_MAX));
+        assertEquals(1, UintUtils.diff(2, 1, UintUtils.UINT32_MAX));
+        assertEquals(3, UintUtils.diff(5, 2, UintUtils.UINT32_MAX));
+        assertEquals(4294967295L, UintUtils.diff(1, 2, UintUtils.UINT32_MAX));
+        assertEquals(4294967290L, UintUtils.diff(UintUtils.UINT32_MAX, 5, UintUtils.UINT32_MAX));
+
+        if (false) { /*  false means UintUtils.diff() throws if arguments out of range */
+            assertEquals(0, UintUtils.diff(4294967297L, 1, UintUtils.UINT32_MAX));
+            assertEquals(0, UintUtils.diff(1, 4294967297L, UintUtils.UINT32_MAX));
+            assertEquals(0, UintUtils.diff(4294967297L, 4294967297L, UintUtils.UINT32_MAX));
+            assertEquals(0, UintUtils.diff(-4294967295L, 1, UintUtils.UINT32_MAX));
+            assertEquals(0, UintUtils.diff(1, -4294967295L, UintUtils.UINT32_MAX));
+            assertEquals(0, UintUtils.diff(-4294967295L, -4294967295L, UintUtils.UINT32_MAX));
+            assertEquals(0, UintUtils.diff(-4294967295L, 4294967297L, UintUtils.UINT32_MAX));
+            assertEquals(0, UintUtils.diff(65537, -4294967297L, UintUtils.UINT32_MAX));
+        }
    }

    @Test
    public void realData() {
        assertEquals(1, UintUtils.diff(381616, 381615, UintUtils.UINT32_MAX));
    }
-}
+}
@@ -45,6 +45,8 @@ import de.dennisguse.opentracks.stats.TrackStatistics;

 /**
 * Tests insert location.
+ * Note: on API23, the TrackRecordingService may not be stopped properly before the next test.
+ * So, if something fails, subsequent tests may be affected.
 */
@RunWith(AndroidJUnit4.class)
 public class TrackRecordingServiceTestRecording {
@@ -112,7 +114,7 @@ public class TrackRecordingServiceTestRecording {
        String startTime = "2020-02-02T02:02:02Z";
        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);

        // then
        assertEquals(new TrackStatistics(startTime, startTime, 0, 0, 0, 0, null, null)
@@ -149,7 +151,7 @@ public class TrackRecordingServiceTestRecording {

        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);

        // when
        String pauseTime = "2020-02-02T02:02:03Z";
@@ -195,7 +197,7 @@ public class TrackRecordingServiceTestRecording {
        String starTime = "2020-02-02T02:02:02Z";
        trackPointCreator.setClock(starTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);

        String pauseTime = "2020-02-02T02:02:03Z";
        trackPointCreator.setClock(pauseTime);
@@ -227,7 +229,7 @@ public class TrackRecordingServiceTestRecording {

        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);

        String stopTime = "2020-02-02T02:02:03Z";
        trackPointCreator.setClock(stopTime);
@@ -237,7 +239,7 @@ public class TrackRecordingServiceTestRecording {
        String resumeTime = "2020-02-02T02:02:04Z";
        trackPointCreator.setClock(resumeTime);
        service.resumeTrack(trackId);
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);

        // then
        new TrackPointAssert().assertEquals(List.of(
@@ -258,12 +260,13 @@ public class TrackRecordingServiceTestRecording {

        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
-        BluetoothRemoteSensorManager remoteSensorManager = trackPointCreator.getRemoteSensorManager();
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);
+        BluetoothRemoteSensorManager remoteSensorManager = trackPointCreator.getSensorManager().getBluetoothSensorManager();

        // when
        String sensor1 = "2020-02-02T02:02:03Z";
        trackPointCreator.setClock(sensor1);
+
        remoteSensorManager.onChanged(new SensorDataHeartRate("", "", HeartRate.of(5))); //Should be ignored

        String sensor3 = "2020-02-02T02:02:13Z";
@@ -297,7 +300,7 @@ public class TrackRecordingServiceTestRecording {
        TrackPointCreator trackPointCreator = service.getTrackPointCreator();
        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);


        // when
@@ -371,7 +374,7 @@ public class TrackRecordingServiceTestRecording {
        TrackPointCreator trackPointCreator = service.getTrackPointCreator();
        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);

        // when
        String gps1 = "2020-02-02T02:02:03Z";
@@ -436,7 +439,7 @@ public class TrackRecordingServiceTestRecording {
        TrackPointCreator trackPointCreator = service.getTrackPointCreator();
        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);

        // when
        String gps1 = "2020-02-02T02:02:03Z";
@@ -500,7 +503,7 @@ public class TrackRecordingServiceTestRecording {
        TrackPointCreator trackPointCreator = service.getTrackPointCreator();
        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);

        // when
        String gps1 = "2020-02-02T02:02:03Z";
@@ -564,7 +567,7 @@ public class TrackRecordingServiceTestRecording {
        TrackPointCreator trackPointCreator = service.getTrackPointCreator();
        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);

        // when
        String gps1 = "2020-02-02T02:02:03Z";
@@ -652,7 +655,7 @@ public class TrackRecordingServiceTestRecording {
        TrackPointCreator trackPointCreator = service.getTrackPointCreator();
        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);

        // when
        String gps1 = "2020-02-02T02:02:03Z";
@@ -702,7 +705,7 @@ public class TrackRecordingServiceTestRecording {
        TrackPointCreator trackPointCreator = service.getTrackPointCreator();
        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);

        // when
        String gps1 = "2020-02-02T02:02:03Z";
@@ -748,7 +751,7 @@ public class TrackRecordingServiceTestRecording {
        TrackPointCreator trackPointCreator = service.getTrackPointCreator();
        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);

        // when
        String gps1 = "2020-02-02T02:02:03Z";
@@ -812,8 +815,8 @@ public class TrackRecordingServiceTestRecording {
        TrackPointCreator trackPointCreator = service.getTrackPointCreator();
        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
-        BluetoothRemoteSensorManager remoteSensorManager = trackPointCreator.getRemoteSensorManager();
+        trackPointCreator.getSensorManager().setAltitudeSumManager(altitudeSumManager);
+        BluetoothRemoteSensorManager remoteSensorManager = trackPointCreator.getSensorManager().getBluetoothSensorManager();

        // when
        String sensor1 = "2020-02-02T02:02:03Z";
@@ -1,15 +1,12 @@
 package de.dennisguse.opentracks.services;

 import android.content.Context;
-import android.content.Intent;
 import android.location.Location;

 import androidx.test.rule.ServiceTestRule;

-import java.time.Clock;
 import java.util.concurrent.TimeoutException;

-import de.dennisguse.opentracks.sensors.BluetoothRemoteSensorManager;
 import de.dennisguse.opentracks.services.handlers.TrackPointCreator;
 import de.dennisguse.opentracks.settings.PreferencesUtils;

@@ -22,14 +19,6 @@ public class TrackRecordingServiceTestUtils {
    public static void resetService(ServiceTestRule mServiceRule, Context context) throws TimeoutException {
        // Let's use default values.
        PreferencesUtils.clear();
-
-        // Reset service (if some previous test failed)
-        TrackRecordingService service = ((TrackRecordingService.Binder) mServiceRule.bindService(new Intent(context, TrackRecordingService.class)))
-                .getService();
-
-        service.getTrackPointCreator().setRemoteSensorManager(new BluetoothRemoteSensorManager(context, null, service.getTrackPointCreator()));
-        service.getTrackPointCreator().setClock(Clock.systemUTC());
-        service.endCurrentTrack();
    }

    static void sendGPSLocation(TrackPointCreator trackPointCreator, String time, double latitude, double longitude, float accuracy, long speed) {
@@ -41,6 +30,6 @@ public class TrackRecordingServiceTestUtils {
        location.setSpeed(speed);

        trackPointCreator.setClock(time);
-        trackPointCreator.getGpsHandler().onLocationChanged(location);
+        trackPointCreator.getSensorManager().getGpsManager().onLocationChanged(location);
    }
 }
@@ -185,7 +185,7 @@ public class VoiceAnnouncementUtilsTest {
        stats.setTotalAltitudeGain(6000f);

        // when
-        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.IMPERIAL, true, null, null).toString();
+        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.IMPERIAL_FEET, true, null, null).toString();

        // then
        assertEquals("Total distance 12.4 miles. 1 hour 5 minutes 10 seconds. Average moving speed 11.4 miles per hour.", announcement);
@@ -207,7 +207,7 @@ public class VoiceAnnouncementUtilsTest {
        }

        // when
-        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.IMPERIAL, true, lastInterval, null).toString();
+        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.IMPERIAL_FEET, true, lastInterval, null).toString();

        // then
        assertEquals("Total distance 8.8 miles. 16 minutes 39 seconds. Average moving speed 31.8 miles per hour. Lap speed 31.8 miles per hour.", announcement);
@@ -223,7 +223,7 @@ public class VoiceAnnouncementUtilsTest {
        stats.setTotalAltitudeGain(6000f);

        // when
-        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.IMPERIAL, false, null, null).toString();
+        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.IMPERIAL_FEET, false, null, null).toString();

        // then
        assertEquals("Total distance 12.4 miles. 1 hour 5 minutes 10 seconds. Pace 5 minutes 15 seconds per mile.", announcement);
@@ -245,7 +245,7 @@ public class VoiceAnnouncementUtilsTest {
        }

        // when
-        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.IMPERIAL, false, lastInterval, null).toString();
+        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.IMPERIAL_FEET, false, lastInterval, null).toString();

        // then
        assertEquals("Total distance 8.8 miles. 16 minutes 39 seconds. Pace 1 minute 53 seconds per mile. Lap time 1 minute 53 seconds per mile.", announcement);
@@ -26,7 +26,7 @@ import de.dennisguse.opentracks.data.models.Distance;
 import de.dennisguse.opentracks.settings.PreferencesUtils;

@RunWith(MockitoJUnitRunner.class)
-public class GPSHandlerTest {
+public class GPSManagerTest {

    private final Context context = ApplicationProvider.getApplicationContext();

@@ -34,7 +34,7 @@ public class GPSHandlerTest {
    private TrackPointCreator trackPointCreator;

    @InjectMocks
-    private GPSHandler locationHandler;
+    private GPSManager locationHandler;

    @BeforeClass
    public static void preSetUp() {
@@ -50,7 +50,7 @@ public class GPSHandlerTest {
        Mockito.when(trackPointCreator.createNow())
                .thenReturn(Instant.now());

-        locationHandler.onStart(context, new Handler());
+        locationHandler.start(context, new Handler());
    }

    /**
@@ -0,0 +1,146 @@
+package de.dennisguse.opentracks.services.handlers;
+
+import static org.junit.Assert.assertEquals;
+import static de.dennisguse.opentracks.services.handlers.GpsStatusValue.GPS_DISABLED;
+import static de.dennisguse.opentracks.services.handlers.GpsStatusValue.GPS_ENABLED;
+import static de.dennisguse.opentracks.services.handlers.GpsStatusValue.GPS_NONE;
+import static de.dennisguse.opentracks.services.handlers.GpsStatusValue.GPS_SIGNAL_BAD;
+import static de.dennisguse.opentracks.services.handlers.GpsStatusValue.GPS_SIGNAL_FIX;
+import static de.dennisguse.opentracks.services.handlers.GpsStatusValue.GPS_SIGNAL_LOST;
+
+import android.content.Context;
+import android.location.Location;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.Looper;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.time.Duration;
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.List;
+
+import de.dennisguse.opentracks.data.models.Distance;
+import de.dennisguse.opentracks.data.models.TrackPoint;
+
+@RunWith(AndroidJUnit4.class)
+public class GpsStatusTest {
+
+    private final Context context = ApplicationProvider.getApplicationContext();
+
+    @BeforeClass
+    public static void preSetUp() {
+        // Prepare looper for Android's message queue
+        if (Looper.myLooper() == null) Looper.prepare();
+    }
+
+    private final static Location badFix = new Location("gps");
+    private final static Location ok = new Location("gps");
+
+    static {
+        badFix.setAccuracy(50);
+
+        ok.setAccuracy(10);
+    }
+
+    @Test
+    public void testStartDisabledEnabledStop() {
+        ArrayList<GpsStatusValue> statusList = new ArrayList<>();
+
+        // given
+        GpsStatusManager subject = new GpsStatusManager(context, statusList::add, new Handler());
+
+        // when / then
+        subject.start();
+        assertEquals(List.of(GPS_ENABLED), statusList);
+
+        subject.onGpsDisabled();
+        assertEquals(List.of(GPS_ENABLED, GPS_DISABLED), statusList);
+
+        subject.onGpsEnabled();
+        assertEquals(List.of(GPS_ENABLED, GPS_DISABLED, GPS_ENABLED), statusList);
+
+        subject.stop();
+        assertEquals(List.of(GPS_ENABLED, GPS_DISABLED, GPS_ENABLED, GPS_NONE), statusList);
+    }
+
+    @Test
+    public void testStartBadfixOk() {
+        ArrayList<GpsStatusValue> statusList = new ArrayList<>();
+
+        // given
+        GpsStatusManager subject = new GpsStatusManager(context, statusList::add, new Handler());
+        subject.onRecordingDistanceChanged(Distance.of(10));
+
+        // when / then
+        subject.start();
+        subject.onNewTrackPoint(new TrackPoint(badFix, Instant.now()));
+        assertEquals(List.of(GPS_ENABLED, GPS_SIGNAL_BAD), statusList);
+
+        subject.onNewTrackPoint(new TrackPoint(ok, Instant.now()));
+        assertEquals(List.of(GPS_ENABLED, GPS_SIGNAL_BAD, GPS_SIGNAL_FIX), statusList);
+
+        subject.onNewTrackPoint(new TrackPoint(ok, Instant.now()));
+        assertEquals(List.of(GPS_ENABLED, GPS_SIGNAL_BAD, GPS_SIGNAL_FIX), statusList);
+
+        subject.onNewTrackPoint(new TrackPoint(badFix, Instant.now()));
+        assertEquals(List.of(GPS_ENABLED, GPS_SIGNAL_BAD, GPS_SIGNAL_FIX, GPS_SIGNAL_BAD), statusList);
+    }
+
+    @Test
+    public void testStartSignalLost() {
+        ArrayList<GpsStatusValue> statusList = new ArrayList<>();
+
+        // given
+        GpsStatusManager subject = new GpsStatusManager(context, statusList::add, new Handler());
+        subject.onRecordingDistanceChanged(Distance.of(10));
+        subject.onMinRecordingIntervalChanged(GpsStatusManager.SIGNAL_LOST_THRESHOLD.multipliedBy(-1));
+
+        // when / then
+        subject.start();
+        subject.onNewTrackPoint(new TrackPoint(ok, Instant.now().minusMillis(1000)));
+        assertEquals(List.of(GPS_ENABLED, GPS_SIGNAL_FIX), statusList);
+
+        subject.determineGpsStatusByTime(Instant.now());
+        assertEquals(List.of(GPS_ENABLED, GPS_SIGNAL_FIX, GPS_SIGNAL_LOST), statusList);
+
+        subject.onNewTrackPoint(new TrackPoint(ok, Instant.now()));
+        assertEquals(List.of(GPS_ENABLED, GPS_SIGNAL_FIX, GPS_SIGNAL_LOST, GPS_SIGNAL_FIX), statusList);
+    }
+
+    @Test
+    public void testStartSignalLostByTimer() throws InterruptedException {
+        ArrayList<GpsStatusValue> statusList = new ArrayList<>();
+
+        final HandlerThread handlerThread = new HandlerThread("solution!");
+        handlerThread.start();
+
+        // given
+        GpsStatusManager subject = new GpsStatusManager(context, statusList::add, new Handler(handlerThread.getLooper()));
+        subject.onRecordingDistanceChanged(Distance.of(10));
+        subject.onMinRecordingIntervalChanged(GpsStatusManager.SIGNAL_LOST_THRESHOLD.multipliedBy(-1).plus(Duration.ofMillis(10)));
+
+        // when / then
+        subject.start();
+        Thread.sleep(100);
+        assertEquals(List.of(GPS_ENABLED), statusList);
+
+        subject.onNewTrackPoint(new TrackPoint(ok, Instant.now()));
+        assertEquals(List.of(GPS_ENABLED, GPS_SIGNAL_FIX), statusList);
+
+        Thread.sleep(100);
+        assertEquals(List.of(GPS_ENABLED, GPS_SIGNAL_FIX, GPS_SIGNAL_LOST), statusList);
+
+        subject.onNewTrackPoint(new TrackPoint(badFix, Instant.now()));
+        assertEquals(List.of(GPS_ENABLED, GPS_SIGNAL_FIX, GPS_SIGNAL_LOST, GPS_SIGNAL_BAD), statusList);
+
+        Thread.sleep(100);
+        assertEquals(List.of(GPS_ENABLED, GPS_SIGNAL_FIX, GPS_SIGNAL_LOST, GPS_SIGNAL_BAD, GPS_SIGNAL_LOST), statusList);
+    }
+}
@@ -1,57 +0,0 @@
-package de.dennisguse.opentracks.services.handlers;
-
-import static org.mockito.Mockito.verify;
-
-import android.content.Context;
-
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Ignore;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
-
-import de.dennisguse.opentracks.data.models.Distance;
-import de.dennisguse.opentracks.data.models.TrackPoint;
-
-@RunWith(MockitoJUnitRunner.class)
-public class TrackPointCreatorTest {
-
-    @Mock
-    private Context context;
-
-    @Mock
-    private TrackPointCreator.Callback server;
-
-    @Mock
-    private GPSHandler locationHandler;
-
-    private TrackPointCreator subject;
-
-    @Before
-    public void setUp() {
-        subject = new TrackPointCreator(locationHandler, server);
-        subject.start(context, null);
-    }
-
-    @After
-    public void tearDown() {
-        subject.stop();
-    }
-
-    @Ignore("ServiceExecutor disabled for #822")
-    @Test
-    public void sendTrackPoint() throws InterruptedException {
-        // given
-        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.TRACKPOINT, null);
-        Distance horizontalAccuracyThreshold = Distance.of(50);
-
-        // when
-        subject.onNewTrackPoint(trackPoint);
-
-        // then
-        Thread.sleep(10); // Wait for executor service
-        verify(server).newTrackPoint(trackPoint, horizontalAccuracyThreshold);
-    }
-}
@@ -17,7 +17,8 @@ import org.junit.runner.RunWith;
 import java.util.List;

 import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.ui.customRecordingLayout.Layout;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayout;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayoutIO;

@RunWith(AndroidJUnit4.class)
 public class PreferencesOpenHelperTest {
@@ -38,10 +39,10 @@ public class PreferencesOpenHelperTest {
        PreferencesOpenHelper.newInstance(1).check();

        // then there should be one layout with old custom layout that has the new CSV value.
-        List<Layout> layouts = PreferencesUtils.getAllCustomLayouts();
-        assertNotNull(layouts);
-        assertEquals(layouts.size(), 1);
-        assertEquals(layouts.get(0).toCsv(), PreferencesUtils.getCustomLayout().toCsv());
+        List<RecordingLayout> recordingLayouts = PreferencesUtils.getAllCustomLayouts();
+        assertNotNull(recordingLayouts);
+        assertEquals(recordingLayouts.size(), 1);
+        assertEquals(recordingLayouts.get(0).toCsv(), PreferencesUtils.getCustomLayout().toCsv());
    }

    @Test
@@ -63,10 +64,10 @@ public class PreferencesOpenHelperTest {
                + PreferencesUtils.getLayoutColumnsByDefault() + ";distance,1,1,0;speed,1,1,0;";

        // then there should be one layout with old custom layout that has the new CSV value.
-        List<Layout> layouts = PreferencesUtils.getAllCustomLayouts();
-        assertNotNull(layouts);
-        assertEquals(layouts.size(), 1);
-        assertEquals(layouts.get(0).toCsv(), updatedOldCustomLayoutCsv);
+        List<RecordingLayout> recordingLayouts = PreferencesUtils.getAllCustomLayouts();
+        assertNotNull(recordingLayouts);
+        assertEquals(recordingLayouts.size(), 1);
+        assertEquals(recordingLayouts.get(0).toCsv(), updatedOldCustomLayoutCsv);
    }

    @Test
@@ -87,10 +88,10 @@ public class PreferencesOpenHelperTest {
        String updatedOldCustomLayoutCsv = "whatever;3;distance,1,1,0;speed,1,1,0;";

        // then there should be one layout with old custom layout that has the new CSV value.
-        List<Layout> layouts = PreferencesUtils.getAllCustomLayouts();
-        assertNotNull(layouts);
-        assertEquals(layouts.size(), 1);
-        assertEquals(layouts.get(0).toCsv(), updatedOldCustomLayoutCsv);
+        List<RecordingLayout> recordingLayouts = PreferencesUtils.getAllCustomLayouts();
+        assertNotNull(recordingLayouts);
+        assertEquals(recordingLayouts.size(), 1);
+        assertEquals(recordingLayouts.get(0).toCsv(), updatedOldCustomLayoutCsv);
    }

    @Test
@@ -109,10 +110,10 @@ public class PreferencesOpenHelperTest {
        PreferencesOpenHelper.newInstance(1).check();

        // then custom layout should be equals to default layout.
-        Layout defaultLayout = Layout.fromCsv(PreferencesUtils.buildDefaultLayout(), resources);
-        List<Layout> customLayout = PreferencesUtils.getAllCustomLayouts();
+        RecordingLayout defaultRecordingLayout = RecordingLayoutIO.fromCsv(PreferencesUtils.buildDefaultLayout(), resources);
+        List<RecordingLayout> customRecordingLayout = PreferencesUtils.getAllCustomLayouts();

-        assertEquals(customLayout.size(), 1);
-        assertEquals(defaultLayout.toCsv(), customLayout.get(0).toCsv());
+        assertEquals(customRecordingLayout.size(), 1);
+        assertEquals(defaultRecordingLayout.toCsv(), customRecordingLayout.get(0).toCsv());
    }
 }
@@ -22,7 +22,8 @@ import java.util.List;
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.io.file.TrackFileFormat;
 import de.dennisguse.opentracks.ui.customRecordingLayout.DataField;
-import de.dennisguse.opentracks.ui.customRecordingLayout.Layout;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayout;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayoutIO;

@RunWith(AndroidJUnit4.class)
 public class PreferencesUtilsTest {
@@ -85,13 +86,13 @@ public class PreferencesUtilsTest {
        editor.commit();

        // when
-        List<Layout> layouts = PreferencesUtils.getAllCustomLayouts();
+        List<RecordingLayout> recordingLayouts = PreferencesUtils.getAllCustomLayouts();

        // then
-        assertEquals(layouts.size(), 1);
-        assertTrue(layouts.get(0).getFields().size() > 0);
-        assertEquals(layouts.get(0).getName(), context.getString(R.string.stats_custom_layout_default_layout));
-        assertTrue(layouts.get(0).getFields().stream().anyMatch(DataField::isVisible));
+        assertEquals(recordingLayouts.size(), 1);
+        assertTrue(recordingLayouts.get(0).getFields().size() > 0);
+        assertEquals(recordingLayouts.get(0).getName(), context.getString(R.string.stats_custom_layout_default_layout));
+        assertTrue(recordingLayouts.get(0).getFields().stream().anyMatch(DataField::isVisible));
    }

    @Test
@@ -103,12 +104,12 @@ public class PreferencesUtilsTest {
        editor.commit();

        // when
-        Layout layout = PreferencesUtils.getCustomLayout();
+        RecordingLayout recordingLayout = PreferencesUtils.getCustomLayout();

        // then
-        assertTrue(layout.getFields().size() > 0);
-        assertEquals(layout.getName(), context.getString(R.string.stats_custom_layout_default_layout));
-        assertTrue(layout.getFields().stream().anyMatch(DataField::isVisible));
+        assertTrue(recordingLayout.getFields().size() > 0);
+        assertEquals(recordingLayout.getName(), context.getString(R.string.stats_custom_layout_default_layout));
+        assertTrue(recordingLayout.getFields().stream().anyMatch(DataField::isVisible));
    }

    @Test
@@ -126,28 +127,28 @@ public class PreferencesUtilsTest {
        editor.apply();

        // when
-        Layout layout = PreferencesUtils.getCustomLayout();
+        RecordingLayout recordingLayout = PreferencesUtils.getCustomLayout();

        // then
-        assertEquals(layout.getFields().size(), 4);
-        assertEquals(layout.getName(), "run");
-        assertEquals(layout.getColumnsPerRow(), 2);
+        assertEquals(recordingLayout.getFields().size(), 4);
+        assertEquals(recordingLayout.getName(), "run");
+        assertEquals(recordingLayout.getColumnsPerRow(), 2);

-        assertEquals(layout.getFields().get(0).getKey(), context.getString(R.string.stats_custom_layout_moving_time_key));
-        assertTrue(layout.getFields().get(0).isVisible());
-        assertTrue(layout.getFields().get(0).isPrimary());
+        assertEquals(recordingLayout.getFields().get(0).getKey(), context.getString(R.string.stats_custom_layout_moving_time_key));
+        assertTrue(recordingLayout.getFields().get(0).isVisible());
+        assertTrue(recordingLayout.getFields().get(0).isPrimary());

-        assertEquals(layout.getFields().get(1).getKey(), context.getString(R.string.stats_custom_layout_distance_key));
-        assertTrue(layout.getFields().get(1).isVisible());
-        assertFalse(layout.getFields().get(1).isPrimary());
+        assertEquals(recordingLayout.getFields().get(1).getKey(), context.getString(R.string.stats_custom_layout_distance_key));
+        assertTrue(recordingLayout.getFields().get(1).isVisible());
+        assertFalse(recordingLayout.getFields().get(1).isPrimary());

-        assertEquals(layout.getFields().get(2).getKey(), context.getString(R.string.stats_custom_layout_average_moving_speed_key));
-        assertFalse(layout.getFields().get(2).isVisible());
-        assertTrue(layout.getFields().get(2).isPrimary());
+        assertEquals(recordingLayout.getFields().get(2).getKey(), context.getString(R.string.stats_custom_layout_average_moving_speed_key));
+        assertFalse(recordingLayout.getFields().get(2).isVisible());
+        assertTrue(recordingLayout.getFields().get(2).isPrimary());

-        assertEquals(layout.getFields().get(3).getKey(), context.getString(R.string.stats_custom_layout_speed_key));
-        assertFalse(layout.getFields().get(3).isVisible());
-        assertFalse(layout.getFields().get(3).isPrimary());
+        assertEquals(recordingLayout.getFields().get(3).getKey(), context.getString(R.string.stats_custom_layout_speed_key));
+        assertFalse(recordingLayout.getFields().get(3).isVisible());
+        assertFalse(recordingLayout.getFields().get(3).isPrimary());
    }

    @Test
@@ -165,44 +166,44 @@ public class PreferencesUtilsTest {
        editor.apply();

        // when
-        Layout layout = PreferencesUtils.getCustomLayout();
+        RecordingLayout recordingLayout = PreferencesUtils.getCustomLayout();

        // then
-        assertEquals(layout.getFields().size(), 4);
-        assertEquals(layout.getName(), "walking");
-        assertEquals(layout.getColumnsPerRow(), 2);
+        assertEquals(recordingLayout.getFields().size(), 4);
+        assertEquals(recordingLayout.getName(), "walking");
+        assertEquals(recordingLayout.getColumnsPerRow(), 2);

-        assertEquals(layout.getFields().get(0).getKey(), context.getString(R.string.stats_custom_layout_moving_time_key));
-        assertTrue(layout.getFields().get(0).isVisible());
-        assertTrue(layout.getFields().get(0).isPrimary());
+        assertEquals(recordingLayout.getFields().get(0).getKey(), context.getString(R.string.stats_custom_layout_moving_time_key));
+        assertTrue(recordingLayout.getFields().get(0).isVisible());
+        assertTrue(recordingLayout.getFields().get(0).isPrimary());

-        assertEquals(layout.getFields().get(1).getKey(), context.getString(R.string.stats_custom_layout_distance_key));
-        assertTrue(layout.getFields().get(1).isVisible());
-        assertFalse(layout.getFields().get(1).isPrimary());
+        assertEquals(recordingLayout.getFields().get(1).getKey(), context.getString(R.string.stats_custom_layout_distance_key));
+        assertTrue(recordingLayout.getFields().get(1).isVisible());
+        assertFalse(recordingLayout.getFields().get(1).isPrimary());

-        assertEquals(layout.getFields().get(2).getKey(), context.getString(R.string.stats_custom_layout_coordinates_key));
-        assertFalse(layout.getFields().get(2).isVisible());
-        assertTrue(layout.getFields().get(2).isPrimary());
-        assertTrue(layout.getFields().get(2).isWide());
+        assertEquals(recordingLayout.getFields().get(2).getKey(), context.getString(R.string.stats_custom_layout_coordinates_key));
+        assertFalse(recordingLayout.getFields().get(2).isVisible());
+        assertTrue(recordingLayout.getFields().get(2).isPrimary());
+        assertTrue(recordingLayout.getFields().get(2).isWide());

-        assertEquals(layout.getFields().get(3).getKey(), context.getString(R.string.stats_custom_layout_speed_key));
-        assertFalse(layout.getFields().get(3).isVisible());
-        assertFalse(layout.getFields().get(3).isPrimary());
+        assertEquals(recordingLayout.getFields().get(3).getKey(), context.getString(R.string.stats_custom_layout_speed_key));
+        assertFalse(recordingLayout.getFields().get(3).isVisible());
+        assertFalse(recordingLayout.getFields().get(3).isPrimary());
    }

    @Test
    public void testSetCustomLayout() {
        // given
        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
-        Layout layoutSrc = new Layout("road cycling");
-        layoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_moving_time_key), context.getString(R.string.stats_moving_time), true, true, false));
-        layoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_distance_key), context.getString(R.string.stats_distance), true, false, false));
-        layoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_average_moving_speed_key), context.getString(R.string.stats_average_moving_speed), false, true, false));
-        layoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_speed_key), context.getString(R.string.stats_speed), false, false, false));
+        RecordingLayout recordingLayoutSrc = new RecordingLayout("road cycling");
+        recordingLayoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_moving_time_key), true, true, false));
+        recordingLayoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_distance_key), true, false, false));
+        recordingLayoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_average_moving_speed_key), false, true, false));
+        recordingLayoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_speed_key), false, false, false));

        // when
        SharedPreferences.Editor editor = sharedPreferences.edit();
-        editor.putString(context.getString(R.string.stats_custom_layouts_key), layoutSrc.toCsv());
+        editor.putString(context.getString(R.string.stats_custom_layouts_key), recordingLayoutSrc.toCsv());
        editor.commit();

        // then
@@ -215,13 +216,13 @@ public class PreferencesUtilsTest {
                + context.getString(R.string.stats_custom_layout_average_moving_speed_key) + ",0,1,0;"
                + context.getString(R.string.stats_custom_layout_speed_key) + ",0,0,0;");

-        Layout layoutDst = PreferencesUtils.getCustomLayout();
-        assertEquals(layoutSrc.getName(), layoutDst.getName());
-        assertEquals(layoutSrc.getFields().size(), layoutDst.getFields().size());
-        for (int i = 0; i < layoutSrc.getFields().size(); i++) {
-            assertEquals(layoutSrc.getFields().get(i).getKey(), layoutDst.getFields().get(i).getKey());
-            assertEquals(layoutSrc.getFields().get(i).isVisible(), layoutDst.getFields().get(i).isVisible());
-            assertEquals(layoutSrc.getFields().get(i).isPrimary(), layoutDst.getFields().get(i).isPrimary());
+        RecordingLayout recordingLayoutDst = PreferencesUtils.getCustomLayout();
+        assertEquals(recordingLayoutSrc.getName(), recordingLayoutDst.getName());
+        assertEquals(recordingLayoutSrc.getFields().size(), recordingLayoutDst.getFields().size());
+        for (int i = 0; i < recordingLayoutSrc.getFields().size(); i++) {
+            assertEquals(recordingLayoutSrc.getFields().get(i).getKey(), recordingLayoutDst.getFields().get(i).getKey());
+            assertEquals(recordingLayoutSrc.getFields().get(i).isVisible(), recordingLayoutDst.getFields().get(i).isVisible());
+            assertEquals(recordingLayoutSrc.getFields().get(i).isPrimary(), recordingLayoutDst.getFields().get(i).isPrimary());
        }
    }

@@ -247,7 +248,7 @@ public class PreferencesUtilsTest {
        editor.putString(context.getString(R.string.stats_custom_layouts_key), cyclingProfile + "\n" + runningProfile);
        editor.apply();

-        List<Layout> layoutsBefore = PreferencesUtils.getAllCustomLayouts();
+        List<RecordingLayout> layoutsBefore = PreferencesUtils.getAllCustomLayouts();

        // when cyling profile is updated
        String cyclingProfileUpdated = "cycling;2;"
@@ -256,14 +257,14 @@ public class PreferencesUtilsTest {
                + context.getString(R.string.stats_custom_layout_average_moving_speed_key) + ",0,0;"
                + context.getString(R.string.stats_custom_layout_speed_key) + ",0,0;";

-        List<Layout> layoutsToBeUpdated = new ArrayList<>();
-        layoutsToBeUpdated.add(Layout.fromCsv(cyclingProfileUpdated, resources));
-        layoutsToBeUpdated.add(Layout.fromCsv(runningProfile, resources));
+        List<RecordingLayout> layoutsToBeUpdated = new ArrayList<>();
+        layoutsToBeUpdated.add(RecordingLayoutIO.fromCsv(cyclingProfileUpdated, resources));
+        layoutsToBeUpdated.add(RecordingLayoutIO.fromCsv(runningProfile, resources));

        PreferencesUtils.updateCustomLayouts(layoutsToBeUpdated);

        // then only updated profile is modified in the custom layouts
-        List<Layout> layoutsAfter = PreferencesUtils.getAllCustomLayouts();
+        List<RecordingLayout> layoutsAfter = PreferencesUtils.getAllCustomLayouts();

        assertEquals(layoutsBefore.size(), 2);
        assertEquals(layoutsAfter.size(), 2);
@@ -294,7 +295,7 @@ public class PreferencesUtilsTest {
        editor.putString(context.getString(R.string.stats_custom_layouts_key), cyclingProfile + "\n" + runningProfile);
        editor.apply();

-        List<Layout> layoutsBefore = PreferencesUtils.getAllCustomLayouts();
+        List<RecordingLayout> layoutsBefore = PreferencesUtils.getAllCustomLayouts();

        // when cyling profile is updated
        String cyclingProfileUpdated = "cycling;2;"
@@ -302,11 +303,11 @@ public class PreferencesUtilsTest {
                + context.getString(R.string.stats_custom_layout_distance_key) + ",0,0;"
                + context.getString(R.string.stats_custom_layout_average_moving_speed_key) + ",0,0;"
                + context.getString(R.string.stats_custom_layout_speed_key) + ",0,0;";
-        Layout layoutToBeUpdated = Layout.fromCsv(cyclingProfileUpdated, resources);
-        PreferencesUtils.updateCustomLayout(layoutToBeUpdated);
+        RecordingLayout recordingLayoutToBeUpdated = RecordingLayoutIO.fromCsv(cyclingProfileUpdated, resources);
+        PreferencesUtils.updateCustomLayout(recordingLayoutToBeUpdated);

        // then only updated profile is modified in the custom layouts
-        List<Layout> layoutsAfter = PreferencesUtils.getAllCustomLayouts();
+        List<RecordingLayout> layoutsAfter = PreferencesUtils.getAllCustomLayouts();

        assertEquals(layoutsBefore.size(), 2);
        assertEquals(layoutsAfter.size(), 2);
@@ -337,9 +338,9 @@ public class PreferencesUtilsTest {
        editor.apply();

        // when it gets the custom layout
-        Layout layout = PreferencesUtils.getCustomLayout();
+        RecordingLayout recordingLayout = PreferencesUtils.getCustomLayout();

        // then the first one was returned
-        assertEquals(layout.getName(), "cycling");
+        assertEquals(recordingLayout.getName(), "cycling");
    }
 }
@@ -80,7 +80,7 @@ public class DescriptionGeneratorTest {
        stats.setTotalAltitudeLoss(6000f);
        stats.setStartTime(START_TIME);
        track.setTrackStatistics(stats);
-        track.setCategory("hiking");
+        track.setActivityType("hiking");
        String expected = //"Created by"
                "<a href='https://github.com/OpenTracksApp/OpenTracks'>OpenTracks (Debug)</a><p>"
                        + "Name: -<br>"
@@ -118,7 +118,7 @@ public class DescriptionGeneratorTest {
        stats.setTotalAltitudeLoss(6000f);
        stats.setStartTime(START_TIME);
        track.setTrackStatistics(stats);
-        track.setCategory("hiking");
+        track.setActivityType("hiking");
        String expected = //"Created by"
                "<a href='https://github.com/OpenTracksApp/OpenTracks'>OpenTracks (Debug)</a><p>"
                        + "Name: -<br>"
@@ -78,7 +78,7 @@ public class TrackStatisticsUpdaterTest {

        // when
        TrackStatisticsUpdater subject = new TrackStatisticsUpdater();
-        data.trackPoints.forEach(subject::addTrackPoint);
+        data.trackPoints().forEach(subject::addTrackPoint);

        // then
        TrackStatistics statistics = subject.getTrackStatistics();
@@ -41,7 +41,7 @@ public class AggregatedStatisticsTest {

        Track track = new Track();
        track.setIcon(TrackIconUtils.getIconValue(context, category));
-        track.setCategory(category);
+        track.setActivityType(category);
        track.setTrackStatistics(statistics);
        return track;
    }
@@ -243,8 +243,8 @@ public class AggregatedStatisticsTest {
        // Check order

        {
-            assertEquals(biking, aggregatedStatistics.getItem(0).getCategory());
-            assertEquals(driving, aggregatedStatistics.getItem(3).getCategory());
+            assertEquals(biking, aggregatedStatistics.getItem(0).getActivityType());
+            assertEquals(driving, aggregatedStatistics.getItem(3).getActivityType());
        }
    }
 }
@@ -51,7 +51,7 @@ public class EspressoAggregatedFilterTest {
    @Before
    public void setUp() {
        Pair<Track, List<TrackPoint>> pair = TestDataUtil.createTrack(new Track.Id(System.currentTimeMillis()), 20);
-        pair.first.setCategory(CATEGORY);
+        pair.first.setActivityType(CATEGORY);
        TestDataUtil.insertTrackWithLocations(new ContentProviderUtils(ApplicationProvider.getApplicationContext()), pair.first, pair.second);
    }

@@ -59,8 +59,8 @@ public class EspressoAggregatedFilterTest {
    public void espressoAggregatedFilterTest() {
        // open AggregatedStatisticsActivity through toolbar's menu item
        onView(ViewMatchers.withId(R.id.bottom_app_bar)).check(matches(isDisplayed()));
-        onView(withId(R.id.bottom_app_bar)).check(matches(hasDescendant(withId(R.id.track_list_aggregated_stats))));
-        onView(withId(R.id.track_list_aggregated_stats)).perform(click());
+        onView(withId(R.id.bottom_app_bar)).check(matches(hasDescendant(withId(R.id.aggregated_stats_button))));
+        onView(withId(R.id.aggregated_stats_button)).perform(click());

        // open FilterDialogFragment through toolbar's menu item
        onView(withId(R.id.bottom_app_bar)).check(matches(isDisplayed()));
@@ -10,7 +10,7 @@ import org.junit.runner.RunWith;
 import java.util.List;

@RunWith(AndroidJUnit4.class)
-public class CsvLayoutUtilsTest extends TestCase {
+public class CsvRecordingLayoutUtilsTest extends TestCase {

    @Test
    public void testGetCsvLineParts() {
@@ -1,76 +0,0 @@
-package de.dennisguse.opentracks.ui.customRecordingLayout;
-
-
-import static androidx.test.espresso.Espresso.onView;
-import static androidx.test.espresso.action.ViewActions.click;
-import static androidx.test.espresso.action.ViewActions.longClick;
-import static androidx.test.espresso.matcher.ViewMatchers.assertThat;
-import static androidx.test.espresso.matcher.ViewMatchers.withId;
-import static org.hamcrest.CoreMatchers.is;
-
-import android.view.View;
-
-import androidx.recyclerview.widget.RecyclerView;
-import androidx.test.espresso.NoMatchingViewException;
-import androidx.test.espresso.ViewAssertion;
-import androidx.test.espresso.ViewInteraction;
-import androidx.test.espresso.matcher.ViewMatchers;
-import androidx.test.ext.junit.rules.ActivityScenarioRule;
-import androidx.test.ext.junit.runners.AndroidJUnit4;
-import androidx.test.filters.LargeTest;
-import androidx.test.rule.GrantPermissionRule;
-
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.TrackListActivity;
-import de.dennisguse.opentracks.settings.PreferencesUtils;
-
-@LargeTest
-@RunWith(AndroidJUnit4.class)
-public class EspressoCustomLayoutTest {
-
-    @Rule
-    public ActivityScenarioRule<TrackListActivity> mActivityTestRule = new ActivityScenarioRule<>(TrackListActivity.class);
-
-    @Rule
-    public GrantPermissionRule mGrantPermissionRule = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
-
-    @Test
-    public void customLayoutTest() {
-        // TrackListActivity: start recording
-        ViewInteraction trackControllerRecordButton = onView(ViewMatchers.withId(R.id.track_list_fab_action));
-        trackControllerRecordButton.perform(click());
-
-        // Get custom layout preferences and check all data fields are showed.
-        Layout layout = PreferencesUtils.getCustomLayout();
-
-        onView(withId(R.id.stats_recycler_view)).check(new RecyclerViewItemCountAssertion((int) layout.getFields().stream().filter(DataField::isVisible).count()));
-
-        // stop recording
-        ViewInteraction trackControllerStopButton = onView(withId(R.id.track_recording_fab_action));
-        trackControllerStopButton.perform(longClick());
-    }
-
-    private static class RecyclerViewItemCountAssertion implements ViewAssertion {
-        private final int expectedCount;
-
-        public RecyclerViewItemCountAssertion(int expectedCount) {
-            this.expectedCount = expectedCount;
-        }
-
-        @Override
-        public void check(View view, NoMatchingViewException noViewFoundException) {
-            if (noViewFoundException != null) {
-                throw noViewFoundException;
-            }
-
-            RecyclerView recyclerView = (RecyclerView) view;
-            RecyclerView.Adapter<?> adapter = recyclerView.getAdapter();
-            assertThat(adapter.getItemCount(), is(expectedCount));
-        }
-    }
-
-}
@@ -17,7 +17,7 @@ import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.settings.PreferencesUtils;

@RunWith(AndroidJUnit4.class)
-public class LayoutTest extends TestCase {
+public class RecordingLayoutTest extends TestCase {

    private final Context context = ApplicationProvider.getApplicationContext();
    private final Resources resources = ApplicationProvider.getApplicationContext().getResources();
@@ -28,21 +28,17 @@ public class LayoutTest extends TestCase {
        String csv = "running;2;" + context.getString(R.string.stats_custom_layout_speed_key) + ",1,1,0;" + context.getString(R.string.stats_custom_layout_distance_key) + ",1,0,0;" + context.getString(R.string.stats_custom_layout_altitude_key) + ",0,1,0;" + context.getString(R.string.stats_custom_layout_gain_key) + ",0,0,0;";

        // when create a layout from CSV line
-        Layout layout = Layout.fromCsv(csv, resources);
-        List<DataField> dataFieldList = layout.getFields();
+        RecordingLayout recordingLayout = RecordingLayoutIO.fromCsv(csv, resources);
+        List<DataField> dataFieldList = recordingLayout.getFields();

        // then layout and data fields are built correctly
-        assertEquals(layout.getName(), "running");
-        assertEquals(layout.getColumnsPerRow(), 2);
+        assertEquals(recordingLayout.getName(), "running");
+        assertEquals(recordingLayout.getColumnsPerRow(), 2);
        assertEquals(dataFieldList.size(), 4);
        assertEquals(dataFieldList.get(0).getKey(), context.getString(R.string.stats_custom_layout_speed_key));
        assertEquals(dataFieldList.get(1).getKey(), context.getString(R.string.stats_custom_layout_distance_key));
        assertEquals(dataFieldList.get(2).getKey(), context.getString(R.string.stats_custom_layout_altitude_key));
        assertEquals(dataFieldList.get(3).getKey(), context.getString(R.string.stats_custom_layout_gain_key));
-        assertEquals(dataFieldList.get(0).getTitle(), context.getString(R.string.stats_speed));
-        assertEquals(dataFieldList.get(1).getTitle(), context.getString(R.string.stats_distance));
-        assertEquals(dataFieldList.get(2).getTitle(), context.getString(R.string.stats_altitude));
-        assertEquals(dataFieldList.get(3).getTitle(), context.getString(R.string.stats_gain));
        assertTrue(dataFieldList.get(0).isVisible());
        assertTrue(dataFieldList.get(0).isPrimary());
        assertFalse(dataFieldList.get(0).isWide());
@@ -64,13 +60,13 @@ public class LayoutTest extends TestCase {
        String csv1 = "Layout Name;speed,1,1;distance,0,0;";

        // when create a layout from CSV line
-        Layout layout = Layout.fromCsv(csv1, resources);
-        List<DataField> dataFieldList = layout.getFields();
+        RecordingLayout recordingLayout = RecordingLayoutIO.fromCsv(csv1, resources);
+        List<DataField> dataFieldList = recordingLayout.getFields();

        // then layout and data fields are built correctly
-        assertEquals(layout.getName(), PreferencesUtils.getDefaultLayoutName());
-        assertEquals(layout.getColumnsPerRow(), PreferencesUtils.getLayoutColumnsByDefault());
-        assertEquals(layout.getFields().size(), 0);
+        assertEquals(recordingLayout.getName(), PreferencesUtils.getDefaultLayoutName());
+        assertEquals(recordingLayout.getColumnsPerRow(), PreferencesUtils.getLayoutColumnsByDefault());
+        assertEquals(recordingLayout.getFields().size(), 0);
    }

    @Test
@@ -79,13 +75,13 @@ public class LayoutTest extends TestCase {
        String csv1 = "Layout Name;2;";

        // when create a layout from CSV line
-        Layout layout = Layout.fromCsv(csv1, resources);
-        List<DataField> dataFieldList = layout.getFields();
+        RecordingLayout recordingLayout = RecordingLayoutIO.fromCsv(csv1, resources);
+        List<DataField> dataFieldList = recordingLayout.getFields();

        // then layout and data fields are built correctly
-        assertEquals(layout.getName(), PreferencesUtils.getDefaultLayoutName());
-        assertEquals(layout.getColumnsPerRow(), PreferencesUtils.getLayoutColumnsByDefault());
-        assertEquals(layout.getFields().size(), 0);
+        assertEquals(recordingLayout.getName(), PreferencesUtils.getDefaultLayoutName());
+        assertEquals(recordingLayout.getColumnsPerRow(), PreferencesUtils.getLayoutColumnsByDefault());
+        assertEquals(recordingLayout.getFields().size(), 0);
    }

    @Test
@@ -94,13 +90,13 @@ public class LayoutTest extends TestCase {
        String csv1 = "Layout Name;2;speed,distance,total time;";

        // when create a layout from CSV line
-        Layout layout = Layout.fromCsv(csv1, resources);
-        List<DataField> dataFieldList = layout.getFields();
+        RecordingLayout recordingLayout = RecordingLayoutIO.fromCsv(csv1, resources);
+        List<DataField> dataFieldList = recordingLayout.getFields();

        // then layout and data fields are built correctly
-        assertEquals(layout.getName(), "Layout Name");
-        assertEquals(layout.getColumnsPerRow(), 2);
-        assertEquals(layout.getFields().size(), 0);
+        assertEquals(recordingLayout.getName(), "Layout Name");
+        assertEquals(recordingLayout.getColumnsPerRow(), 2);
+        assertEquals(recordingLayout.getFields().size(), 0);
    }

    @Test
@@ -109,27 +105,27 @@ public class LayoutTest extends TestCase {
        String csv1 = "Layout Name;2;speed,1,0;distance;";

        // when create a layout from CSV line
-        Layout layout = Layout.fromCsv(csv1, resources);
-        List<DataField> dataFieldList = layout.getFields();
+        RecordingLayout recordingLayout = RecordingLayoutIO.fromCsv(csv1, resources);
+        List<DataField> dataFieldList = recordingLayout.getFields();

        // then layout and data fields are built correctly
-        assertEquals(layout.getName(), "Layout Name");
-        assertEquals(layout.getColumnsPerRow(), 2);
-        assertEquals(layout.getFields().size(), 1);
+        assertEquals(recordingLayout.getName(), "Layout Name");
+        assertEquals(recordingLayout.getColumnsPerRow(), 2);
+        assertEquals(recordingLayout.getFields().size(), 1);
    }

    @Test
    public void testToCsv() {
        // given a layout's object
-        Layout layout = new Layout("Test Layout", 2);
-        layout.addField("key1", "Title 1", false, false, false);
-        layout.addField("key2", "Title 2", false, true, false);
-        layout.addField("key3", "Title 3", true, false, false);
-        layout.addField("key4", "Title 4", true, true, false);
-        layout.addField("key5", "Title 5", true, true, true);
+        RecordingLayout recordingLayout = new RecordingLayout("Test Layout", 2);
+        recordingLayout.addField(new DataField("key1", false, false, false));
+        recordingLayout.addField(new DataField("key2", false, true, false));
+        recordingLayout.addField(new DataField("key3", true, false, false));
+        recordingLayout.addField(new DataField("key4", true, true, false));
+        recordingLayout.addField(new DataField("key5", true, true, true));

        // when converts it to CSV
-        String csv = layout.toCsv();
+        String csv = recordingLayout.toCsv();

        // then csv is well built
        assertEquals(csv, "Test Layout;2;key1,0,0,0;key2,0,1,0;key3,1,0,0;key4,1,1,0;key5,1,1,1;");
@@ -138,15 +134,15 @@ public class LayoutTest extends TestCase {
    @Test
    public void testToCsv_columnsByDefault() {
        // given a layout's object
-        Layout layout = new Layout("Test Layout");
-        layout.addField("key1", "Title 1", false, false, false);
-        layout.addField("key2", "Title 2", false, true, false);
-        layout.addField("key3", "Title 3", true, false, false);
-        layout.addField("key4", "Title 4", true, true, false);
-        layout.addField("key5", "Title 5", true, true, true);
+        RecordingLayout recordingLayout = new RecordingLayout("Test Layout");
+        recordingLayout.addField(new DataField("key1", false, false, false));
+        recordingLayout.addField(new DataField("key2", false, true, false));
+        recordingLayout.addField(new DataField("key3", true, false, false));
+        recordingLayout.addField(new DataField("key4", true, true, false));
+        recordingLayout.addField(new DataField("key5", true, true, true));

        // when converts it to CSV
-        String csv = layout.toCsv();
+        String csv = recordingLayout.toCsv();

        // then csv is well built
        assertEquals(csv, "Test Layout;" + PreferencesUtils.getLayoutColumnsByDefault() + ";key1,0,0,0;key2,0,1,0;key3,1,0,0;key4,1,1,0;key5,1,1,1;");
@@ -34,23 +34,24 @@ public class EGM2008UtilsTest {
        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";
+        String expectedHeader = """
+                P5
+                # Geoid file in PGM format for the GeographicLib::Geoid class
+                # Description WGS84 EGM2008, 5-minute grid
+                # URL http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm2008
+                # DateTime 2009-08-29 18:45:00
+                # MaxBilinearError 0.478
+                # RMSBilinearError 0.012
+                # MaxCubicError 0.294
+                # RMSCubicError 0.005
+                # Offset -108
+                # Scale 0.003
+                # Origin 90N 0E
+                # AREA_OR_POINT Point
+                # Vertical_Datum WGS84
+                4320    2161
+                65535
+                """;

        // when
        try (InputStream inputStream = context.getResources().openRawResource(EGM2008Utils.EGM2008_5_DATA)) {
@@ -78,7 +79,7 @@ public class EGM2008UtilsTest {
        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());

        // then
-        assertEquals(-14.8980, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+        assertEquals(-14.8980, altitude_egm2008.correctAltitude(trackPoint.getLocation()).toM(), MAX_BILINEAR_ERROR);
    }

    @Test
@@ -93,7 +94,7 @@ public class EGM2008UtilsTest {
        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());

        // then
-        assertEquals(30.15, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+        assertEquals(30.15, altitude_egm2008.correctAltitude(trackPoint.getLocation()).toM(), MAX_BILINEAR_ERROR);
    }

    @Test
@@ -108,7 +109,7 @@ public class EGM2008UtilsTest {
        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());

        // then
-        assertEquals(30.15, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+        assertEquals(30.15, altitude_egm2008.correctAltitude(trackPoint.getLocation()).toM(), MAX_BILINEAR_ERROR);
    }

    @Test
@@ -123,7 +124,7 @@ public class EGM2008UtilsTest {
        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());

        // then
-        assertEquals(30.15, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+        assertEquals(30.15, altitude_egm2008.correctAltitude(trackPoint.getLocation()).toM(), MAX_BILINEAR_ERROR);
    }

    @Test
@@ -138,7 +139,7 @@ public class EGM2008UtilsTest {
        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());

        // then
-        assertEquals(-17.2260, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+        assertEquals(-17.2260, altitude_egm2008.correctAltitude(trackPoint.getLocation()).toM(), MAX_BILINEAR_ERROR);
    }

    @Test
@@ -153,7 +154,7 @@ public class EGM2008UtilsTest {
        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());

        // then
-        assertEquals(-39.4865, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+        assertEquals(-39.4865, altitude_egm2008.correctAltitude(trackPoint.getLocation()).toM(), MAX_BILINEAR_ERROR);
    }

    @Test
@@ -173,7 +174,7 @@ public class EGM2008UtilsTest {
        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint1.getLocation());

        // then
-        assertNotEquals(altitude_egm2008.correctAltitude(trackPoint1.getLocation()), altitude_egm2008.correctAltitude(trackPoint2.getLocation()), 0.0001);
+        assertNotEquals(altitude_egm2008.correctAltitude(trackPoint1.getLocation()).toM(), altitude_egm2008.correctAltitude(trackPoint2.getLocation()).toM(), 0.0001);
    }

    @Test
@@ -189,7 +190,7 @@ public class EGM2008UtilsTest {
        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());

        // then
-        assertEquals(22.99, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+        assertEquals(22.99, altitude_egm2008.correctAltitude(trackPoint.getLocation()).toM(), MAX_BILINEAR_ERROR);
    }

    @Test
@@ -204,7 +205,7 @@ public class EGM2008UtilsTest {
        EGM2008Utils.EGM2008Correction altitude_egm2008 = EGM2008Utils.createCorrection(context, trackPoint.getLocation());

        // then
-        assertEquals(-85.824, altitude_egm2008.correctAltitude(trackPoint.getLocation()), MAX_BILINEAR_ERROR);
+        assertEquals(-85.824, altitude_egm2008.correctAltitude(trackPoint.getLocation()).toM(), MAX_BILINEAR_ERROR);
    }


@@ -17,11 +17,14 @@ package de.dennisguse.opentracks.util;

 import static org.junit.Assert.assertEquals;

+import androidx.test.core.app.ApplicationProvider;
+
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;

 import java.io.File;
+import java.io.IOException;
 import java.util.Arrays;

 /**
@@ -37,7 +40,7 @@ public class FileUtilsTest {
     */
    @Test
    public void testBuildUniqueFileName_new() {
-        String filename = FileUtils.buildUniqueFileName(new File("/dir"), "Filename", "ext");
+        String filename = FileUtils.buildUniqueFileName(FileUtils.getPhotoDir(ApplicationProvider.getApplicationContext()), "Filename", "ext");
        assertEquals("Filename.ext", filename);
    }

@@ -45,9 +48,14 @@ public class FileUtilsTest {
     * Tests {@link FileUtils#buildUniqueFileName(File, String, String)} when the file exists already.
     */
    @Test
-    public void testBuildUniqueFileName_exist() {
-        // Expect "/default.prop" to exist on the phone/emulator
-        String filename = FileUtils.buildUniqueFileName(new File("/"), "default", "prop");
+    public void testBuildUniqueFileName_exist() throws IOException {
+        // given
+        new File(FileUtils.getPhotoDir(ApplicationProvider.getApplicationContext()), "default.prop").createNewFile();
+
+        //when
+        String filename = FileUtils.buildUniqueFileName(FileUtils.getPhotoDir(ApplicationProvider.getApplicationContext()), "default", "prop");
+
+        // then
        assertEquals("default(1).prop", filename);
    }

@@ -12,7 +12,7 @@ import org.junit.runner.RunWith;

 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.ui.customRecordingLayout.DataField;
-import de.dennisguse.opentracks.ui.customRecordingLayout.Layout;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayout;

@RunWith(AndroidJUnit4.class)
 public class StatisticsUtilsTest extends TestCase {
@@ -44,16 +44,16 @@ public class StatisticsUtilsTest extends TestCase {
    @Test
    public void testFilterVisible() {
        // given
-        Layout layout = new Layout("profile");
-        layout.addField(new DataField("key1", "title1", true, true, false));
-        layout.addField(new DataField("key2", "title2", false, true, false));
-        layout.addField(new DataField("key3", "title3", true, true, false));
-        layout.addField(new DataField("key4", "title4", false, true, false));
-        layout.addField(new DataField("key5", "title5", true, true, false));
+        RecordingLayout recordingLayout = new RecordingLayout("profile");
+        recordingLayout.addField(new DataField("key1", true, true, false));
+        recordingLayout.addField(new DataField("key2", false, true, false));
+        recordingLayout.addField(new DataField("key3", true, true, false));
+        recordingLayout.addField(new DataField("key4", false, true, false));
+        recordingLayout.addField(new DataField("key5", true, true, false));

        // when
-        Layout resultTrue = StatisticsUtils.filterVisible(layout, true);
-        Layout resultFalse = StatisticsUtils.filterVisible(layout, false);
+        RecordingLayout resultTrue = recordingLayout.toRecordingLayout(true);
+        RecordingLayout resultFalse = recordingLayout.toRecordingLayout(false);

        // then
        assertEquals(resultTrue.getFields().size(), 3);
@@ -1,199 +0,0 @@
-package de.dennisguse.opentracks.viewmodels;
-
-import static org.mockito.Mockito.when;
-
-import android.content.Context;
-
-import androidx.test.core.app.ApplicationProvider;
-
-import junit.framework.TestCase;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
-
-import java.time.Duration;
-import java.util.List;
-
-import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.data.models.Cadence;
-import de.dennisguse.opentracks.data.models.Distance;
-import de.dennisguse.opentracks.data.models.HeartRate;
-import de.dennisguse.opentracks.data.models.Power;
-import de.dennisguse.opentracks.data.models.Track;
-import de.dennisguse.opentracks.services.RecordingData;
-import de.dennisguse.opentracks.settings.UnitSystem;
-import de.dennisguse.opentracks.stats.SensorStatistics;
-import de.dennisguse.opentracks.stats.TrackStatistics;
-import de.dennisguse.opentracks.ui.customRecordingLayout.Layout;
-
-@RunWith(MockitoJUnitRunner.class)
-public class StatisticDataBuilderTest extends TestCase {
-
-    private final Context context = ApplicationProvider.getApplicationContext();
-
-    @Mock
-    private Track trackMock;
-
-    @Mock
-    private TrackStatistics trackStatisticsMock;
-
-    @Mock
-    private RecordingData recordingDataMock;
-
-    @Mock
-    private SensorStatistics sensorStatisticsMock;
-
-    @Test
-    public void testFromRecordingData() {
-        when(trackMock.getTrackStatistics()).thenReturn(trackStatisticsMock);
-        when(trackStatisticsMock.getTotalTime()).thenReturn(Duration.ofMillis(0));
-        when(trackStatisticsMock.getMovingTime()).thenReturn(Duration.ofMillis(0));
-        when(trackStatisticsMock.getTotalDistance()).thenReturn(Distance.of(0));
-        when(recordingDataMock.getTrackStatistics()).thenReturn(trackStatisticsMock);
-
-        // given
-        Layout layout = new Layout(context.getString(R.string.default_activity_default));
-        layout.addField(context.getString(R.string.stats_custom_layout_total_time_key), context.getString(R.string.stats_total_time), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_moving_time_key), context.getString(R.string.stats_moving_time), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_distance_key), context.getString(R.string.stats_distance), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_speed_key), context.getString(R.string.stats_speed), false, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_max_speed_key), context.getString(R.string.stats_max_speed), false, true, false);
-
-        // when
-        List<StatisticData> statisticDataList = StatisticDataBuilder.fromRecordingData(context, recordingDataMock, layout, UnitSystem.METRIC);
-
-        // then
-        assertEquals(statisticDataList.size(), 3);
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_total_time))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_moving_time))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_distance))));
-    }
-
-    @Test
-    public void testFromRecordingData_allFields() {
-        when(trackMock.getTrackStatistics()).thenReturn(trackStatisticsMock);
-        when(trackStatisticsMock.getTotalTime()).thenReturn(Duration.ofMillis(0));
-        when(trackStatisticsMock.getMovingTime()).thenReturn(Duration.ofMillis(0));
-        when(trackStatisticsMock.getTotalDistance()).thenReturn(Distance.of(0));
-        when(recordingDataMock.getTrackStatistics()).thenReturn(trackStatisticsMock);
-
-        // given
-        Layout layout = new Layout(context.getString(R.string.default_activity_default));
-        layout.addField(context.getString(R.string.stats_custom_layout_total_time_key), context.getString(R.string.stats_total_time), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_moving_time_key), context.getString(R.string.stats_moving_time), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_distance_key), context.getString(R.string.stats_distance), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_speed_key), context.getString(R.string.stats_speed), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_average_moving_speed_key), context.getString(R.string.stats_average_moving_speed), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_average_speed_key), context.getString(R.string.stats_average_speed), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_max_speed_key), context.getString(R.string.stats_max_speed), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_pace_key), context.getString(R.string.stats_pace), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_average_moving_pace_key), context.getString(R.string.stats_average_moving_pace), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_average_pace_key), context.getString(R.string.stats_average_pace), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_fastest_pace_key), context.getString(R.string.stats_fastest_pace), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_altitude_key), context.getString(R.string.stats_altitude), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_gain_key), context.getString(R.string.stats_gain), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_loss_key), context.getString(R.string.stats_loss), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_coordinates_key), context.getString(R.string.stats_coordinates), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_heart_rate_key), context.getString(R.string.stats_sensors_heart_rate), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_cadence_key), context.getString(R.string.stats_sensors_cadence), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_power_key), context.getString(R.string.stats_sensors_power), true, true, false);
-
-        // when
-        List<StatisticData> statisticDataList = StatisticDataBuilder.fromRecordingData(context, recordingDataMock, layout, UnitSystem.METRIC);
-
-        // then
-        assertEquals(statisticDataList.size(), 18);
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_total_time))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_moving_time))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_distance))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_speed))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_average_moving_speed))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_average_speed))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_max_speed))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_pace))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_average_moving_pace))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_average_pace))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_fastest_pace))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_altitude))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_gain))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_loss))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_coordinates))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_sensors_heart_rate))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_sensors_cadence))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_sensors_power))));
-    }
-
-    @Test
-    public void testFromSensorStatistics_onlyHeartRate() {
-        when(sensorStatisticsMock.hasHeartRate()).thenReturn(true);
-        when(sensorStatisticsMock.getMaxHeartRate()).thenReturn(HeartRate.of(200f));
-        when(sensorStatisticsMock.getAvgHeartRate()).thenReturn(HeartRate.of(150f));
-        when(sensorStatisticsMock.hasCadence()).thenReturn(false);
-        when(sensorStatisticsMock.hasPower()).thenReturn(false);
-
-        // when
-        List<StatisticData> statisticDataList = StatisticDataBuilder.fromSensorStatistics(context, sensorStatisticsMock);
-
-        // then
-        assertEquals(statisticDataList.size(), 2);
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_heart_rate_max))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_heart_rate_avg))));
-    }
-
-    @Test
-    public void testFromSensorStatistics_onlyCadence() {
-        when(sensorStatisticsMock.hasHeartRate()).thenReturn(false);
-        when(sensorStatisticsMock.hasCadence()).thenReturn(true);
-        when(sensorStatisticsMock.getAvgCadence()).thenReturn(Cadence.of(90f));
-        when(sensorStatisticsMock.getMaxCadence()).thenReturn(Cadence.of(110f));
-        when(sensorStatisticsMock.hasPower()).thenReturn(false);
-
-        // when
-        List<StatisticData> statisticDataList = StatisticDataBuilder.fromSensorStatistics(context, sensorStatisticsMock);
-
-        // then
-        assertEquals(statisticDataList.size(), 2);
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_cadence_max))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_cadence_avg))));
-    }
-
-    @Test
-    public void testFromSensorStatistics_onlyPower() {
-        when(sensorStatisticsMock.hasHeartRate()).thenReturn(false);
-        when(sensorStatisticsMock.hasCadence()).thenReturn(false);
-        when(sensorStatisticsMock.hasPower()).thenReturn(true);
-        when(sensorStatisticsMock.getAvgPower()).thenReturn(Power.of(300f));
-
-        // when
-        List<StatisticData> statisticDataList = StatisticDataBuilder.fromSensorStatistics(context, sensorStatisticsMock);
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_power_avg))));
-
-        // then
-        assertEquals(statisticDataList.size(), 1);
-    }
-
-    @Test
-    public void testFromSensorStatistics() {
-        when(sensorStatisticsMock.hasHeartRate()).thenReturn(true);
-        when(sensorStatisticsMock.getMaxHeartRate()).thenReturn(HeartRate.of(200f));
-        when(sensorStatisticsMock.getAvgHeartRate()).thenReturn(HeartRate.of(150f));
-        when(sensorStatisticsMock.hasCadence()).thenReturn(true);
-        when(sensorStatisticsMock.getAvgCadence()).thenReturn(Cadence.of(90f));
-        when(sensorStatisticsMock.getMaxCadence()).thenReturn(Cadence.of(110f));
-        when(sensorStatisticsMock.hasPower()).thenReturn(true);
-        when(sensorStatisticsMock.getAvgPower()).thenReturn(Power.of(300f));
-
-        // when
-        List<StatisticData> statisticDataList = StatisticDataBuilder.fromSensorStatistics(context, sensorStatisticsMock);
-
-        // then
-        assertEquals(statisticDataList.size(), 5);
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_heart_rate_max))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_heart_rate_avg))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_cadence_max))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_cadence_avg))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_power_avg))));
-    }
-}
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<shortcuts xmlns:android="http://schemas.android.com/apk/res/android">
+    <shortcut
+        android:enabled="true"
+        android:icon="@drawable/ic_statistics_24dp"
+        android:shortcutId="stats"
+        android:shortcutLongLabel="@string/menu_aggregated_statistics"
+        android:shortcutShortLabel="@string/menu_aggregated_statistics">
+
+        <intent
+            android:action="android.intent.action.VIEW"
+            android:targetClass="de.dennisguse.opentracks.ui.aggregatedStatistics.AggregatedStatisticsActivity"
+            android:targetPackage="de.dennisguse.opentracks.debug" />
+    </shortcut>
+</shortcuts>
@@ -62,7 +62,9 @@ limitations under the License.

    <application
        android:name=".Startup"
-        android:allowBackup="false"
+        android:allowBackup="true"
+        android:fullBackupContent="@xml/backup_rules_30_lower"
+        android:dataExtractionRules="@xml/backup_rules_31_higher"
        android:hardwareAccelerated="true"
        android:hasFragileUserData="false"
        android:icon="@drawable/ic_launcher"
@@ -87,6 +89,7 @@ limitations under the License.
            </intent-filter>
        </activity>

+        <!-- NOTE: the name of the MAIN/LAUNCHER is used by icon packs; if this is changed, icon packs break.-->
        <activity
            android:name=".introduction.IntroductionActivity"
            android:exported="true"
@@ -96,6 +99,11 @@ limitations under the License.
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
+
+            <meta-data
+                android:name="android.app.shortcuts"
+                android:resource="@xml/shortcuts"
+            />
        </activity>

        <activity android:name=".AboutActivity" />
@@ -346,6 +354,7 @@ limitations under the License.
        <activity android:name=".ui.aggregatedStatistics.AggregatedStatisticsActivity" />

        <activity android:name=".io.file.importer.DirectoryChooserActivity$ExportDirectoryChooserActivity" />
+        <activity android:name=".io.file.importer.DirectoryChooserActivity$ExportDirectoryChooserOneFileActivity" />
        <activity android:name=".io.file.importer.DirectoryChooserActivity$DefaultTrackExportDirectoryChooserActivity" />

        <activity android:name=".io.file.exporter.ExportActivity" />
@@ -24,7 +24,7 @@ public class ShowErrorActivity extends AbstractActivity {
        super.onCreate(savedInstanceState);

        viewBinding.textViewError.setText(getIntent().getStringExtra(EXTRA_ERROR_TEXT));
-        viewBinding.bottomAppBarLayout.bottomAppBarTitle.setText(createErrorTitle());
+        viewBinding.showErrorToolbar.setTitle(createErrorTitle());
        setSupportActionBar(viewBinding.bottomAppBarLayout.bottomAppBar);
    }

@@ -24,6 +24,7 @@ import android.widget.ArrayAdapter;
 import androidx.annotation.NonNull;

 import de.dennisguse.opentracks.data.ContentProviderUtils;
+import de.dennisguse.opentracks.data.models.ActivityType;
 import de.dennisguse.opentracks.data.models.Track;
 import de.dennisguse.opentracks.databinding.TrackEditBinding;
 import de.dennisguse.opentracks.fragments.ChooseActivityTypeDialogFragment;
@@ -73,9 +74,9 @@ public class TrackEditActivity extends AbstractActivity implements ChooseActivit

        viewBinding.fields.trackEditName.setText(track.getName());

-        viewBinding.fields.trackEditActivityType.setText(track.getCategory());
+        viewBinding.fields.trackEditActivityType.setText(track.getActivityType());

-        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.activity_types, android.R.layout.simple_dropdown_item_1line);
+        ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_dropdown_item_1line, ActivityType.getLocalizedStrings(this));
        viewBinding.fields.trackEditActivityType.setAdapter(adapter);
        viewBinding.fields.trackEditActivityType.setOnItemClickListener((parent, view, position, id) -> setActivityTypeIcon(TrackIconUtils.getIconValue(this, (String) viewBinding.fields.trackEditActivityType.getAdapter().getItem(position))));
        viewBinding.fields.trackEditActivityType.setOnFocusChangeListener((v, hasFocus) -> {
@@ -108,7 +109,6 @@ public class TrackEditActivity extends AbstractActivity implements ChooseActivit
        viewBinding.trackEditCancel.setOnClickListener(v -> finish());
        viewBinding.trackEditCancel.setVisibility(View.VISIBLE);

-        viewBinding.bottomAppBarLayout.bottomAppBarTitle.setText(getString(R.string.menu_edit));
        setSupportActionBar(viewBinding.bottomAppBarLayout.bottomAppBar);
    }

@@ -25,7 +25,6 @@ import android.database.Cursor;
 import android.graphics.drawable.AnimatedVectorDrawable;
 import android.location.LocationManager;
 import android.os.Bundle;
-import android.os.Vibrator;
 import android.provider.Settings;
 import android.util.Pair;
 import android.view.KeyEvent;
@@ -36,6 +35,7 @@ import android.widget.Toast;

 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.appcompat.content.res.AppCompatResources;
 import androidx.appcompat.widget.SearchView;
 import androidx.core.content.ContextCompat;
 import androidx.cursoradapter.widget.ResourceCursorAdapter;
@@ -43,12 +43,12 @@ import androidx.loader.app.LoaderManager;
 import androidx.loader.content.CursorLoader;
 import androidx.loader.content.Loader;

+import com.google.android.material.button.MaterialButton;
+
 import java.time.Duration;
 import java.time.Instant;
 import java.time.OffsetDateTime;
 import java.time.ZoneOffset;
-import java.util.ArrayList;
-import java.util.Arrays;

 import de.dennisguse.opentracks.data.models.Distance;
 import de.dennisguse.opentracks.data.models.DistanceFormatter;
@@ -83,7 +83,7 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co

    private static final String TAG = TrackListActivity.class.getSimpleName();

-    // The following are setFrequency in onCreate
+    // The following are set in onCreate
    private TrackRecordingServiceConnection trackRecordingServiceConnection;
    private ResourceCursorAdapter resourceCursorAdapter;

@@ -137,7 +137,6 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co

    // Menu items
    private MenuItem searchMenuItem;
-    private MenuItem startGpsMenuItem;

    private final TrackRecordingServiceConnection.Callback bindChangedCallback = (service, unused) -> {
        service.getRecordingStatusObservable()
@@ -165,6 +164,25 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co

        trackRecordingServiceConnection = new TrackRecordingServiceConnection(bindChangedCallback);

+        viewBinding.aggregatedStatsButton.setOnClickListener((view) -> startActivity(IntentUtils.newIntent(this, AggregatedStatisticsActivity.class)));
+        viewBinding.sensorStartButton.setOnClickListener((view) -> {
+            LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
+            if (locationManager != null && !locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
+                startActivity(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS));
+            } else {
+                // Invoke trackRecordingService
+                if (!gpsStatusValue.isGpsStarted()) {
+                    trackRecordingServiceConnection.startAndBindWithCallback(this);
+                } else {
+                    TrackRecordingService trackRecordingService = trackRecordingServiceConnection.getServiceIfBound();
+                    if (trackRecordingService != null) {
+                        trackRecordingService.stopSensorsAndShutdown(); //TODO Handle this in TrackRecordingServiceConnection
+                    }
+                    trackRecordingServiceConnection.unbindAndStop(this);
+                }
+            }
+        });
+
        viewBinding.trackList.setEmptyView(viewBinding.trackListEmptyView);
        viewBinding.trackList.setOnItemClickListener((parent, view, position, trackIdId) -> {
            Track.Id trackId = new Track.Id(trackIdId);
@@ -194,7 +212,7 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co
                int totalDistanceIndex = cursor.getColumnIndexOrThrow(TracksColumns.TOTALDISTANCE);
                int startTimeIndex = cursor.getColumnIndexOrThrow(TracksColumns.STARTTIME);
                int startTimeOffsetIndex = cursor.getColumnIndexOrThrow(TracksColumns.STARTTIME_OFFSET);
-                int categoryIndex = cursor.getColumnIndexOrThrow(TracksColumns.CATEGORY);
+                int activityTypeIndex = cursor.getColumnIndexOrThrow(TracksColumns.ACTIVITY_TYPE);
                int descriptionIndex = cursor.getColumnIndexOrThrow(TracksColumns.DESCRIPTION);
                int markerCountIndex = cursor.getColumnIndexOrThrow(TracksColumns.MARKER_COUNT);

@@ -210,13 +228,13 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co
                int markerCount = cursor.getInt(markerCountIndex);
                long startTime = cursor.getLong(startTimeIndex);
                int startTimeOffset = cursor.getInt(startTimeOffsetIndex);
-                String category = icon != null && !icon.equals("") ? null : cursor.getString(categoryIndex);
+                String activityType = icon != null && !icon.equals("") ? null : cursor.getString(activityTypeIndex);
                String description = cursor.getString(descriptionIndex);

                ListItemUtils.setListItem(TrackListActivity.this, view, isRecording,
                        iconId, R.string.image_track, name, totalTime, totalDistance, markerCount,
                        OffsetDateTime.ofInstant(Instant.ofEpochMilli(startTime), ZoneOffset.ofTotalSeconds(startTimeOffset)),
-                        category, description, false);
+                        activityType, description, false);
            }
        };
        viewBinding.trackList.setAdapter(resourceCursorAdapter);
@@ -246,7 +264,7 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co
            }

            // Recording -> Stop
-            ((Vibrator) getSystemService(Context.VIBRATOR_SERVICE)).vibrate(1000);
+            ActivityUtils.vibrate(this, 1000);
            updateGpsMenuItem(false, false);
            trackRecordingServiceConnection.stopRecording(TrackListActivity.this);
            viewBinding.trackListFabAction.setImageResource(R.drawable.ic_baseline_record_24);
@@ -254,7 +272,7 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co
            return true;
        });

-        setSupportActionBar(viewBinding.bottomAppBar);
+        setSupportActionBar(viewBinding.trackListToolbar);

        loadData(getIntent());
    }
@@ -309,21 +327,7 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co
        getMenuInflater().inflate(R.menu.track_list, menu);

        searchMenuItem = menu.findItem(R.id.track_list_search);
-        SearchView searchView = ActivityUtils.configureSearchWidget(this, searchMenuItem);
-
-        searchView.findViewById(R.id.search_edit_frame).setPadding(0, 0, 48, 0);
-
-        SearchView.SearchAutoComplete searchAutoComplete = searchView.findViewById(R.id.search_src_text);
-        searchAutoComplete.setHintTextColor(ContextCompat.getColor(this, android.R.color.white));
-        searchAutoComplete.setTextColor(ContextCompat.getColor(this, android.R.color.white));
-
-        searchView.setOnCloseListener(() -> {
-            searchView.clearFocus();
-            searchMenuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
-            return true;
-        });
-
-        startGpsMenuItem = menu.findItem(R.id.track_list_start_gps);
+        ActivityUtils.configureSearchWidget(this, searchMenuItem);

        return super.onCreateOptionsMenu(menu);
    }
@@ -340,34 +344,6 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
-        if (item.getItemId() == R.id.track_list_start_gps) {
-            LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
-            if (locationManager != null && !locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
-                startActivity(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS));
-            } else {
-                // Invoke trackRecordingService
-                if (!gpsStatusValue.isGpsStarted()) {
-                    trackRecordingServiceConnection.startAndBindWithCallback(this);
-                } else {
-                    TrackRecordingService trackRecordingService = trackRecordingServiceConnection.getServiceIfBound();
-                    if (trackRecordingService != null) {
-                        trackRecordingService.stopSensorsAndShutdown(); //TODO Handle this in TrackRecordingServiceConnection
-                    }
-                    trackRecordingServiceConnection.unbindAndStop(this);
-                }
-
-                // Update menu after starting or stopping gps
-                this.invalidateOptionsMenu();
-            }
-
-            return true;
-        }
-
-        if (item.getItemId() == R.id.track_list_aggregated_stats) {
-            startActivity(IntentUtils.newIntent(this, AggregatedStatisticsActivity.class));
-            return true;
-        }
-
        if (item.getItemId() == R.id.track_list_markers) {
            startActivity(IntentUtils.newIntent(this, MarkerListActivity.class));
            return true;
@@ -382,6 +358,12 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co
            SearchView searchView = (SearchView) searchMenuItem.getActionView();
            searchView.setIconified(false);
            searchMenuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
+            return true;
+        }
+
+        if (item.getItemId() == R.id.track_list_help) {
+            startActivity(IntentUtils.newIntent(this, HelpActivity.class));
+            return true;
        }

        return super.onOptionsItemSelected(item);
@@ -455,14 +437,12 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co
     */
    //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);
-            if (!isRecording) {
-                startGpsMenuItem.setTitle(isGpsStarted ? R.string.menu_stop_gps : R.string.menu_start_gps);
-                startGpsMenuItem.setIcon(isGpsStarted ? gpsStatusValue.icon : R.drawable.ic_gps_off_24dp);
-                if (startGpsMenuItem.getIcon() instanceof AnimatedVectorDrawable) {
-                    ((AnimatedVectorDrawable) startGpsMenuItem.getIcon()).start();
-                }
+        MaterialButton startGpsMenuItem = viewBinding.sensorStartButton;
+        startGpsMenuItem.setVisibility(!isRecording ? View.VISIBLE : View.INVISIBLE);
+        if (!isRecording) {
+            startGpsMenuItem.setIcon(AppCompatResources.getDrawable(this, isGpsStarted ? gpsStatusValue.icon : R.drawable.ic_gps_off_24dp));
+            if (startGpsMenuItem.getIcon() instanceof AnimatedVectorDrawable) {
+                ((AnimatedVectorDrawable) startGpsMenuItem.getIcon()).start();
            }
        }
    }
@@ -504,13 +484,6 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co
            return true;
        }

-        if (itemId == R.id.list_context_menu_aggregated_stats) {
-            Intent intent = IntentUtils.newIntent(this, AggregatedStatisticsActivity.class)
-                    .putParcelableArrayListExtra(AggregatedStatisticsActivity.EXTRA_TRACK_IDS, new ArrayList<>(Arrays.asList(trackIds)));
-            startActivity(intent);
-            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);
@@ -532,11 +505,7 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co
        public void setSearch(String searchQuery) {
            this.searchQuery = searchQuery;
            restart();
-            if (searchQuery != null) {
-                setTitle(searchQuery);
-            } else {
-                setTitle(R.string.app_name);
-            }
+            viewBinding.trackListToolbar.setTitle(searchQuery == null ? getString(R.string.app_name) : searchQuery);
        }

        public void restart() {
@@ -547,7 +516,7 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co
        @Override
        public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
            final String[] PROJECTION = new String[]{TracksColumns._ID, TracksColumns.NAME,
-                    TracksColumns.DESCRIPTION, TracksColumns.CATEGORY, TracksColumns.STARTTIME, TracksColumns.STARTTIME_OFFSET,
+                    TracksColumns.DESCRIPTION, TracksColumns.ACTIVITY_TYPE, TracksColumns.STARTTIME, TracksColumns.STARTTIME_OFFSET,
                    TracksColumns.TOTALDISTANCE, TracksColumns.TOTALTIME, TracksColumns.ICON, TracksColumns.MARKER_COUNT};

            final String sortOrder = TracksColumns.STARTTIME + " DESC";
@@ -557,7 +526,7 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co
            } else {
                final String SEARCH_QUERY = TracksColumns.NAME + " LIKE ? OR " +
                        TracksColumns.DESCRIPTION + " LIKE ? OR " +
-                        TracksColumns.CATEGORY + " LIKE ?";
+                        TracksColumns.ACTIVITY_TYPE + " LIKE ?";
                final String[] selectionArgs = new String[]{"%" + searchQuery + "%", "%" + searchQuery + "%", "%" + searchQuery + "%"};
                return new CursorLoader(TrackListActivity.this, TracksColumns.CONTENT_URI, PROJECTION, SEARCH_QUERY, selectionArgs, sortOrder);
            }
@@ -581,7 +550,7 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co

    private void setFloatButton() {
        viewBinding.trackListFabAction.setImageResource(recordingStatus.isRecording() ? R.drawable.ic_baseline_stop_24 : R.drawable.ic_baseline_record_24);
-        viewBinding.trackListFabAction.setBackgroundTintList(ContextCompat.getColorStateList(this, recordingStatus.isRecording() ? R.color.opentracks_secondary_color : R.color.red_dark));
+        viewBinding.trackListFabAction.setBackgroundTintList(ContextCompat.getColorStateList(this, recordingStatus.isRecording() ? R.color.opentracks : R.color.red_dark));
    }

    private void onRecordingStatusChanged(RecordingStatus status) {
@@ -103,7 +103,6 @@ public class TrackRecordedActivity extends AbstractTrackDeleteActivity implement
        trackRecordingServiceConnection = new TrackRecordingServiceConnection(bindCallback);

        Track track = contentProviderUtils.getTrack(trackId);
-        viewBinding.bottomAppBarLayout.bottomAppBarTitle.setText(track != null ? track.getName() : "");
        viewBinding.bottomAppBarLayout.bottomAppBar.replaceMenu(R.menu.track_detail);
        setSupportActionBar(viewBinding.bottomAppBarLayout.bottomAppBar);

@@ -274,18 +273,14 @@ public class TrackRecordedActivity extends AbstractTrackDeleteActivity implement
        @NonNull
        @Override
        public Fragment createFragment(int position) {
-            switch (position) {
-                case 0:
-                    return StatisticsRecordedFragment.newInstance(trackId);
-                case 1:
-                    return IntervalsFragment.newInstance(trackId, true);
-                case 2:
-                    return ChartFragment.newInstance(false);
-                case 3:
-                    return ChartFragment.newInstance(true);
-                default:
-                    throw new RuntimeException("There isn't Fragment associated with the position: " + position);
-            }
+            return switch (position) {
+                case 0 -> StatisticsRecordedFragment.newInstance(trackId);
+                case 1 -> IntervalsFragment.newInstance(trackId, true);
+                case 2 -> ChartFragment.newInstance(false);
+                case 3 -> ChartFragment.newInstance(true);
+                default ->
+                        throw new RuntimeException("There isn't Fragment associated with the position: " + position);
+            };
        }

        @Override
@@ -294,18 +289,14 @@ public class TrackRecordedActivity extends AbstractTrackDeleteActivity implement
        }

        public CharSequence getPageTitle(int position) {
-            switch (position) {
-                case 0:
-                    return getString(R.string.track_detail_stats_tab);
-                case 1:
-                    return getString(R.string.track_detail_intervals_tab);
-                case 2:
-                    return getString(R.string.settings_chart_by_time);
-                case 3:
-                    return getString(R.string.settings_chart_by_distance);
-                default:
-                    throw new RuntimeException("There isn't Fragment associated with the position: " + position);
-            }
+            return switch (position) {
+                case 0 -> getString(R.string.track_detail_stats_tab);
+                case 1 -> getString(R.string.track_detail_intervals_tab);
+                case 2 -> getString(R.string.settings_chart_by_time);
+                case 3 -> getString(R.string.settings_chart_by_distance);
+                default ->
+                        throw new RuntimeException("There isn't Fragment associated with the position: " + position);
+            };
        }
    }

@@ -1,12 +1,10 @@
 package de.dennisguse.opentracks;

 import android.app.AlertDialog;
-import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
 import android.os.Build;
 import android.os.Bundle;
-import android.os.Vibrator;
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
@@ -45,6 +43,7 @@ import de.dennisguse.opentracks.settings.SettingsActivity;
 import de.dennisguse.opentracks.ui.intervals.IntervalsFragment;
 import de.dennisguse.opentracks.ui.markers.MarkerEditActivity;
 import de.dennisguse.opentracks.ui.markers.MarkerListActivity;
+import de.dennisguse.opentracks.ui.util.ActivityUtils;
 import de.dennisguse.opentracks.util.IntentDashboardUtils;
 import de.dennisguse.opentracks.util.IntentUtils;
 import de.dennisguse.opentracks.util.TrackIconUtils;
@@ -134,10 +133,10 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
        }

        viewBinding.trackRecordingFabAction.setImageResource(R.drawable.ic_baseline_stop_24);
-        viewBinding.trackRecordingFabAction.setBackgroundTintList(ContextCompat.getColorStateList(this, R.color.opentracks_secondary_color));
-        viewBinding.trackRecordingFabAction.setBackgroundColor(ContextCompat.getColor(this, R.color.opentracks_secondary_color));
+        viewBinding.trackRecordingFabAction.setBackgroundTintList(ContextCompat.getColorStateList(this, R.color.opentracks));
+        viewBinding.trackRecordingFabAction.setBackgroundColor(ContextCompat.getColor(this, R.color.opentracks));
        viewBinding.trackRecordingFabAction.setOnLongClickListener((view) -> {
-            ((Vibrator) getSystemService(Context.VIBRATOR_SERVICE)).vibrate(1000);
+            ActivityUtils.vibrate(this, 1000);
            trackRecordingServiceConnection.stopRecording(TrackRecordingActivity.this);
            Intent newIntent = IntentUtils.newIntent(TrackRecordingActivity.this, TrackStoppedActivity.class)
                    .putExtra(TrackStoppedActivity.EXTRA_TRACK_ID, trackId);
@@ -320,8 +319,8 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
    @Override
    public void onChooseActivityTypeDone(String iconValue) {
        Track track = contentProviderUtils.getTrack(trackId);
-        String category = getString(TrackIconUtils.getIconActivityType(iconValue));
-        TrackUtils.updateTrack(this, track, null, category, null, contentProviderUtils);
+        String activityType = getString(TrackIconUtils.getIconActivityType(iconValue));
+        TrackUtils.updateTrack(this, track, null, activityType, null, contentProviderUtils);
    }

    private class CustomFragmentPagerAdapter extends FragmentStateAdapter {
@@ -333,18 +332,14 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
        @NonNull
        @Override
        public Fragment createFragment(int position) {
-            switch (position) {
-                case 0:
-                    return StatisticsRecordingFragment.newInstance();
-                case 1:
-                    return IntervalsFragment.newInstance(trackId, false);
-                case 2:
-                    return ChartFragment.newInstance(false);
-                case 3:
-                    return ChartFragment.newInstance(true);
-                default:
-                    throw new RuntimeException("There isn't Fragment associated with the position: " + position);
-            }
+            return switch (position) {
+                case 0 -> StatisticsRecordingFragment.newInstance();
+                case 1 -> IntervalsFragment.newInstance(trackId, false);
+                case 2 -> ChartFragment.newInstance(false);
+                case 3 -> ChartFragment.newInstance(true);
+                default ->
+                        throw new RuntimeException("There isn't Fragment associated with the position: " + position);
+            };
        }

        @Override
@@ -353,18 +348,14 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
        }

        public CharSequence getPageTitle(int position) {
-            switch (position) {
-                case 0:
-                    return getString(R.string.track_detail_stats_tab);
-                case 1:
-                    return getString(R.string.track_detail_intervals_tab);
-                case 2:
-                    return getString(R.string.settings_chart_by_time);
-                case 3:
-                    return getString(R.string.settings_chart_by_distance);
-                default:
-                    throw new RuntimeException("There isn't Fragment associated with the position: " + position);
-            }
+            return switch (position) {
+                case 0 -> getString(R.string.track_detail_stats_tab);
+                case 1 -> getString(R.string.track_detail_intervals_tab);
+                case 2 -> getString(R.string.settings_chart_by_time);
+                case 3 -> getString(R.string.settings_chart_by_distance);
+                default ->
+                        throw new RuntimeException("There isn't Fragment associated with the position: " + position);
+            };
        }
    }

@@ -381,13 +372,18 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
    }

    private void onGpsStatusChanged(GpsStatusValue gpsStatusValue) {
-        if (gpsStatusValue.isGpsStarted() && snackbar != null && snackbar.isShown()) {
-            snackbar.dismiss();
+        boolean snackbarShowing = snackbar != null && snackbar.isShown();
+        if (gpsStatusValue.isGpsStarted()) {
+            if (snackbarShowing) {
+                snackbar.dismiss();
+            }
            return;
        }
-        if (gpsStatusValue != GpsStatusValue.GPS_DISABLED) {
+
+        if (snackbarShowing) {
            return;
        }
+
        snackbar = Snackbar
                .make(viewBinding.trackRecordingCoordinatorLayout,
                        getString(R.string.gps_recording_status, getString(gpsStatusValue.message), getString(R.string.gps_recording_without_signal)),
@@ -8,6 +8,7 @@ import android.view.View;
 import android.widget.ArrayAdapter;

 import de.dennisguse.opentracks.data.ContentProviderUtils;
+import de.dennisguse.opentracks.data.models.ActivityType;
 import de.dennisguse.opentracks.data.models.DistanceFormatter;
 import de.dennisguse.opentracks.data.models.SpeedFormatter;
 import de.dennisguse.opentracks.data.models.Track;
@@ -49,9 +50,9 @@ public class TrackStoppedActivity extends AbstractTrackDeleteActivity implements

        viewBinding.trackEditName.setText(track.getName());

-        viewBinding.trackEditActivityType.setText(track.getCategory());
+        viewBinding.trackEditActivityType.setText(track.getActivityType());

-        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.activity_types, android.R.layout.simple_dropdown_item_1line);
+        ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_dropdown_item_1line, ActivityType.getLocalizedStrings(this));
        viewBinding.trackEditActivityType.setAdapter(adapter);
        viewBinding.trackEditActivityType.setOnItemClickListener((parent, view, position, id) -> setActivityTypeIcon(TrackIconUtils.getIconValue(this, (String) viewBinding.trackEditActivityType.getAdapter().getItem(position))));
        viewBinding.trackEditActivityType.setOnFocusChangeListener((v, hasFocus) -> {
@@ -73,7 +74,7 @@ public class TrackStoppedActivity extends AbstractTrackDeleteActivity implements
        {
            Pair<String, String> parts = SpeedFormatter.Builder()
                    .setUnit(PreferencesUtils.getUnitSystem())
-                    .setReportSpeedOrPace(PreferencesUtils.isReportSpeed(track.getCategory()))
+                    .setReportSpeedOrPace(PreferencesUtils.isReportSpeed(track.getActivityType()))
                    .build(this)
                    .getSpeedParts(track.getTrackStatistics().getAverageMovingSpeed());
            viewBinding.speed.setText(parts.first);
@@ -1,176 +0,0 @@
-package de.dennisguse.opentracks.adapters;
-
-import android.content.Context;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextClock;
-import android.widget.TextView;
-
-import androidx.annotation.NonNull;
-import androidx.recyclerview.widget.RecyclerView;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.ui.customRecordingLayout.CustomLayoutFieldType;
-import de.dennisguse.opentracks.viewmodels.StatisticData;
-
-public class StatisticsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
-
-    private List<StatisticData> statisticDataList;
-    private final Context context;
-
-    public StatisticsAdapter(Context context) {
-        this.context = context;
-        this.statisticDataList = new ArrayList<>();
-    }
-
-    @NonNull
-    @Override
-    public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-        View view;
-        if (viewType == CustomLayoutFieldType.CLOCK.value()) {
-            view = LayoutInflater.from(parent.getContext()).inflate(R.layout.stats_clock_item, parent, false);
-            return new StatisticsAdapter.ViewClockHolder(view);
-        } else {
-            view = LayoutInflater.from(parent.getContext()).inflate(R.layout.stats_generic_item, parent, false);
-            return new StatisticsAdapter.ViewHolder(view);
-        }
-    }
-
-    @Override
-    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
-        StatisticData statisticData = statisticDataList.get(position);
-        if (getItemViewType(position) == CustomLayoutFieldType.CLOCK.value()) {
-            StatisticsAdapter.ViewClockHolder viewHolder = (StatisticsAdapter.ViewClockHolder) holder;
-            viewHolder.setData(statisticData);
-        } else {
-            StatisticsAdapter.ViewHolder viewHolder = (StatisticsAdapter.ViewHolder) holder;
-            viewHolder.setData(statisticData);
-        }
-    }
-
-    @Override
-    public int getItemCount() {
-        if (statisticDataList == null) {
-            return 0;
-        } else {
-            return statisticDataList.size();
-        }
-    }
-
-    @Override
-    public int getItemViewType(int position) {
-        if (statisticDataList.get(position).getField().getType(context) == CustomLayoutFieldType.CLOCK) {
-            return CustomLayoutFieldType.CLOCK.value();
-        } else {
-            return CustomLayoutFieldType.GENERIC.value();
-        }
-    }
-
-    public boolean isItemWide(int position) {
-        return statisticDataList.get(position).getField().isWide();
-    }
-
-    public List<StatisticData> swapData(List<StatisticData> data) {
-        if (statisticDataList == data) {
-            return null;
-        }
-
-        statisticDataList = data;
-
-        if (data != null) {
-            this.notifyDataSetChanged();
-        }
-
-        return data;
-    }
-
-    public static class WithRecordedLayout extends StatisticsAdapter {
-        public WithRecordedLayout(Context context) {
-            super(context);
-        }
-
-        @NonNull
-        @Override
-        public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.stats_recorded_item, parent, false);
-            return new StatisticsAdapter.ViewRecordedHolder(view);
-        }
-    }
-
-    private class ViewHolder extends RecyclerView.ViewHolder {
-        final TextView value;
-        final TextView unit;
-        final TextView descMain;
-        final TextView descSecondary;
-
-        public ViewHolder(@NonNull View itemView) {
-            super(itemView);
-            value = itemView.findViewById(R.id.stats_value);
-            unit = itemView.findViewById(R.id.stats_unit);
-            descMain = itemView.findViewById(R.id.stats_description_main);
-            descSecondary = itemView.findViewById(R.id.stats_description_secondary);
-        }
-
-        public void setData(StatisticData statisticData) {
-            if (statisticData == null) {
-                return;
-            }
-            this.value.setText(statisticData.hasValue() ? statisticData.getValue() : context.getString(R.string.value_unknown));
-            this.value.setTextAppearance(context, statisticData.getField().isPrimary() ? R.style.TextAppearance_OpenTracks_PrimaryValue : R.style.TextAppearance_OpenTracks_SecondaryValue);
-            this.unit.setText(statisticData.getUnit());
-            this.descMain.setText(statisticData.getField().getTitle());
-            this.descMain.setTextAppearance(context, statisticData.getField().isPrimary() ? R.style.TextAppearance_OpenTracks_PrimaryHeader : R.style.TextAppearance_OpenTracks_SecondaryHeader);
-            if (statisticData.hasDescription()) {
-                this.descSecondary.setVisibility(View.VISIBLE);
-                this.descSecondary.setText(statisticData.getDescription());
-            } else {
-                this.descSecondary.setVisibility(View.GONE);
-            }
-        }
-    }
-
-    private class ViewClockHolder extends RecyclerView.ViewHolder {
-        final TextClock value;
-        final TextView descMain;
-
-        public ViewClockHolder(@NonNull View itemView) {
-            super(itemView);
-            value = itemView.findViewById(R.id.stats_clock);
-            descMain = itemView.findViewById(R.id.stats_description_main);
-        }
-
-        public void setData(StatisticData statisticData) {
-            if (statisticData == null) {
-                return;
-            }
-            this.value.setTextAppearance(context, statisticData.getField().isPrimary() ? R.style.TextAppearance_OpenTracks_PrimaryValue : R.style.TextAppearance_OpenTracks_SecondaryValue);
-            this.descMain.setTextAppearance(context, statisticData.getField().isPrimary() ? R.style.TextAppearance_OpenTracks_PrimaryHeader : R.style.TextAppearance_OpenTracks_SecondaryHeader);
-        }
-    }
-
-    private class ViewRecordedHolder extends ViewHolder {
-
-        public ViewRecordedHolder(@NonNull View itemView) {
-            super(itemView);
-        }
-
-        public void setData(StatisticData statisticData) {
-            if (statisticData == null) {
-                return;
-            }
-            this.value.setText(statisticData.hasValue() ? statisticData.getValue() : context.getString(R.string.value_unknown));
-            this.unit.setText(statisticData.getUnit());
-            this.descMain.setText(statisticData.getField().getTitle());
-            if (statisticData.hasDescription()) {
-                this.descSecondary.setVisibility(View.VISIBLE);
-                this.descSecondary.setText(statisticData.getDescription());
-            } else {
-                this.descSecondary.setVisibility(View.GONE);
-            }
-        }
-    }
-}
@@ -164,7 +164,7 @@ public class ChartFragment extends Fragment implements TrackDataHub.Listener {
                return;
            }

-            category = track.getCategory();
+            category = track.getActivityType();
            boolean reportSpeed = PreferencesUtils.isReportSpeed(category);
            if (reportSpeed != viewBinding.chartView.getReportSpeed()) {
                viewBinding.chartView.setReportSpeed(reportSpeed);
@@ -210,16 +210,11 @@ abstract class ChartValueSeries {
    }

    int getTitleId(UnitSystem unitSystem) {
-        switch (unitSystem) {
-            case METRIC:
-                return metricTitleId;
-            case IMPERIAL:
-                return imperialTitleId;
-            case NAUTICAL_IMPERIAL:
-                return nauticalTitleId;
-            default:
-                throw new RuntimeException("Not implemented");
-        }
+        return switch (unitSystem) {
+            case METRIC -> metricTitleId;
+            case IMPERIAL_FEET, IMPERIAL_METER -> imperialTitleId;
+            case NAUTICAL_IMPERIAL -> nauticalTitleId;
+        };
    }

    Paint getTitlePaint() {
@@ -733,16 +733,11 @@ public class ChartView extends View {
    private String getXAxisLabel() {
        Context context = getContext();
        if (chartByDistance) {
-            switch (unitSystem) {
-                case METRIC:
-                    return context.getString(R.string.unit_kilometer);
-                case IMPERIAL:
-                    return context.getString(R.string.unit_mile);
-                case NAUTICAL_IMPERIAL:
-                    return context.getString(R.string.unit_nautical_mile);
-                default:
-                    throw new RuntimeException("Not implemented");
-            }
+            return switch (unitSystem) {
+                case METRIC -> context.getString(R.string.unit_kilometer);
+                case IMPERIAL_FEET, IMPERIAL_METER -> context.getString(R.string.unit_mile);
+                case NAUTICAL_IMPERIAL -> context.getString(R.string.unit_nautical_mile);
+            };
        } else {
            return context.getString(R.string.description_time);
        }
@@ -100,7 +100,7 @@ public class ContentProviderUtils {
        int uuidIndex = cursor.getColumnIndexOrThrow(TracksColumns.UUID);
        int nameIndex = cursor.getColumnIndexOrThrow(TracksColumns.NAME);
        int descriptionIndex = cursor.getColumnIndexOrThrow(TracksColumns.DESCRIPTION);
-        int categoryIndex = cursor.getColumnIndexOrThrow(TracksColumns.CATEGORY);
+        int categoryIndex = cursor.getColumnIndexOrThrow(TracksColumns.ACTIVITY_TYPE);
        int startTimeIndex = cursor.getColumnIndexOrThrow(TracksColumns.STARTTIME);
        int startTimeOffsetIndex = cursor.getColumnIndexOrThrow(TracksColumns.STARTTIME_OFFSET);
        int stopTimeIndex = cursor.getColumnIndexOrThrow(TracksColumns.STOPTIME);
@@ -129,7 +129,7 @@ public class ContentProviderUtils {
            track.setDescription(cursor.getString(descriptionIndex));
        }
        if (!cursor.isNull(categoryIndex)) {
-            track.setCategory(cursor.getString(categoryIndex));
+            track.setActivityType(cursor.getString(categoryIndex));
        }

        if (!cursor.isNull(startTimeIndex)) {
@@ -290,7 +290,7 @@ public class ContentProviderUtils {
        values.put(TracksColumns.UUID, UUIDUtils.toBytes(track.getUuid()));
        values.put(TracksColumns.NAME, track.getName());
        values.put(TracksColumns.DESCRIPTION, track.getDescription());
-        values.put(TracksColumns.CATEGORY, track.getCategory());
+        values.put(TracksColumns.ACTIVITY_TYPE, track.getActivityType());
        values.put(TracksColumns.STARTTIME_OFFSET, track.getZoneOffset().getTotalSeconds());
        if (trackStatistics.getStartTime() != null) {
            values.put(TracksColumns.STARTTIME, trackStatistics.getStartTime().toEpochMilli());
@@ -403,7 +403,7 @@ public class ContentProviderUtils {
    public void deleteMarker(Context context, Marker.Id markerId) {
        final Marker marker = getMarker(markerId);
        deleteMarkerPhoto(context, marker);
-        contentResolver.delete(MarkerColumns.CONTENT_URI, MarkerColumns._ID + "=?", new String[]{Long.toString(markerId.getId())});
+        contentResolver.delete(MarkerColumns.CONTENT_URI, MarkerColumns._ID + "=?", new String[]{Long.toString(markerId.id())});
    }

    /**
@@ -422,7 +422,7 @@ public class ContentProviderUtils {
    }

    public Marker getMarker(@NonNull Marker.Id markerId) {
-        try (Cursor cursor = getMarkerCursor(null, MarkerColumns._ID + "=?", new String[]{Long.toString(markerId.getId())}, MarkerColumns._ID, 1)) {
+        try (Cursor cursor = getMarkerCursor(null, MarkerColumns._ID + "=?", new String[]{Long.toString(markerId.id())}, MarkerColumns._ID, 1)) {
            if (cursor != null && cursor.moveToFirst()) {
                return createMarker(cursor);
            }
@@ -442,7 +442,7 @@ public class ContentProviderUtils {
        String[] selectionArgs;
        if (minMarkerId != null) {
            selection = MarkerColumns.TRACKID + "=? AND " + MarkerColumns._ID + ">=?";
-            selectionArgs = new String[]{Long.toString(trackId.getId()), Long.toString(minMarkerId.getId())};
+            selectionArgs = new String[]{Long.toString(trackId.getId()), Long.toString(minMarkerId.id())};
        } else {
            selection = MarkerColumns.TRACKID + "=?";
            selectionArgs = new String[]{Long.toString(trackId.getId())};
@@ -495,7 +495,7 @@ public class ContentProviderUtils {
        if (!updateMarker.hasPhoto()) {
            deleteMarkerPhoto(context, savedMarker);
        }
-        int rows = contentResolver.update(MarkerColumns.CONTENT_URI, createContentValues(updateMarker), MarkerColumns._ID + "=?", new String[]{Long.toString(updateMarker.getId().getId())});
+        int rows = contentResolver.update(MarkerColumns.CONTENT_URI, createContentValues(updateMarker), MarkerColumns._ID + "=?", new String[]{Long.toString(updateMarker.getId().id())});
        return rows == 1;
    }

@@ -503,7 +503,7 @@ public class ContentProviderUtils {
        ContentValues values = new ContentValues();

        if (marker.getId() != null) {
-            values.put(MarkerColumns._ID, marker.getId().getId());
+            values.put(MarkerColumns._ID, marker.getId().id());
        }
        values.put(MarkerColumns.NAME, marker.getName());
        values.put(MarkerColumns.DESCRIPTION, marker.getDescription());
@@ -133,20 +133,12 @@ public class CustomContentProvider extends ContentProvider {

    @Override
    public int delete(@NonNull Uri url, String where, String[] selectionArgs) {
-        String table;
-        switch (getUrlType(url)) {
-            case TRACKPOINTS:
-                table = TrackPointsColumns.TABLE_NAME;
-                break;
-            case TRACKS:
-                table = TracksColumns.TABLE_NAME;
-                break;
-            case MARKERS:
-                table = MarkerColumns.TABLE_NAME;
-                break;
-            default:
-                throw new IllegalArgumentException("Unknown URL " + url);
-        }
+        String table = switch (getUrlType(url)) {
+            case TRACKPOINTS -> TrackPointsColumns.TABLE_NAME;
+            case TRACKS -> TracksColumns.TABLE_NAME;
+            case MARKERS -> MarkerColumns.TABLE_NAME;
+            default -> throw new IllegalArgumentException("Unknown URL " + url);
+        };

        Log.w(TAG, "Deleting from table " + table);
        int totalChangesBefore = getTotalChanges();
@@ -186,24 +178,15 @@ public class CustomContentProvider extends ContentProvider {

    @Override
    public String getType(@NonNull Uri url) {
-        switch (getUrlType(url)) {
-            case TRACKPOINTS:
-                return TrackPointsColumns.CONTENT_TYPE;
-            case TRACKPOINTS_BY_ID:
-            case TRACKPOINTS_BY_TRACKID:
-                return TrackPointsColumns.CONTENT_ITEMTYPE;
-            case TRACKS:
-                return TracksColumns.CONTENT_TYPE;
-            case TRACKS_BY_ID:
-                return TracksColumns.CONTENT_ITEMTYPE;
-            case MARKERS:
-                return MarkerColumns.CONTENT_TYPE;
-            case MARKERS_BY_ID:
-            case MARKERS_BY_TRACKID:
-                return MarkerColumns.CONTENT_ITEMTYPE;
-            default:
-                throw new IllegalArgumentException("Unknown URL " + url);
-        }
+        return switch (getUrlType(url)) {
+            case TRACKPOINTS -> TrackPointsColumns.CONTENT_TYPE;
+            case TRACKPOINTS_BY_ID, TRACKPOINTS_BY_TRACKID -> TrackPointsColumns.CONTENT_ITEMTYPE;
+            case TRACKS -> TracksColumns.CONTENT_TYPE;
+            case TRACKS_BY_ID -> TracksColumns.CONTENT_ITEMTYPE;
+            case MARKERS -> MarkerColumns.CONTENT_TYPE;
+            case MARKERS_BY_ID, MARKERS_BY_TRACKID -> MarkerColumns.CONTENT_ITEMTYPE;
+            default -> throw new IllegalArgumentException("Unknown URL " + url);
+        };
    }

    @Override
@@ -251,47 +234,47 @@ public class CustomContentProvider extends ContentProvider {
        SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder();
        String sortOrder = null;
        switch (getUrlType(url)) {
-            case TRACKPOINTS:
+            case TRACKPOINTS -> {
                queryBuilder.setTables(TrackPointsColumns.TABLE_NAME);
                sortOrder = sort != null ? sort : TrackPointsColumns.DEFAULT_SORT_ORDER;
-                break;
-            case TRACKPOINTS_BY_ID:
+            }
+            case TRACKPOINTS_BY_ID -> {
                queryBuilder.setTables(TrackPointsColumns.TABLE_NAME);
                queryBuilder.appendWhere(TrackPointsColumns._ID + "=" + ContentUris.parseId(url));
-                break;
-            case TRACKPOINTS_BY_TRACKID:
+            }
+            case TRACKPOINTS_BY_TRACKID -> {
                queryBuilder.setTables(TrackPointsColumns.TABLE_NAME);
                queryBuilder.appendWhere(TrackPointsColumns.TRACKID + " IN (" + TextUtils.join(SQL_LIST_DELIMITER, ContentProviderUtils.parseTrackIdsFromUri(url)) + ")");
-                break;
-            case TRACKS:
+            }
+            case TRACKS -> {
                if (projection != null && Arrays.asList(projection).contains(TracksColumns.MARKER_COUNT)) {
                    queryBuilder.setTables(TracksColumns.TABLE_NAME + " LEFT OUTER JOIN (SELECT " + MarkerColumns.TRACKID + " AS markerTrackId, COUNT(*) AS " + TracksColumns.MARKER_COUNT + " FROM " + MarkerColumns.TABLE_NAME + " GROUP BY " + MarkerColumns.TRACKID + ") ON (" + TracksColumns.TABLE_NAME + "." + TracksColumns._ID + "= markerTrackId)");
                } else {
                    queryBuilder.setTables(TracksColumns.TABLE_NAME);
                }
                sortOrder = sort != null ? sort : TracksColumns.DEFAULT_SORT_ORDER;
-                break;
-            case TRACKS_BY_ID:
+            }
+            case TRACKS_BY_ID -> {
                queryBuilder.setTables(TracksColumns.TABLE_NAME);
                queryBuilder.appendWhere(TracksColumns._ID + " IN (" + TextUtils.join(SQL_LIST_DELIMITER, ContentProviderUtils.parseTrackIdsFromUri(url)) + ")");
-                break;
-            case TRACKS_SENSOR_STATS:
+            }
+            case TRACKS_SENSOR_STATS -> {
                long trackId = ContentUris.parseId(url);
                return db.rawQuery(SENSOR_STATS_QUERY, new String[]{String.valueOf(trackId), String.valueOf(trackId)});
-            case MARKERS:
+            }
+            case MARKERS -> {
                queryBuilder.setTables(MarkerColumns.TABLE_NAME);
                sortOrder = sort != null ? sort : MarkerColumns.DEFAULT_SORT_ORDER;
-                break;
-            case MARKERS_BY_ID:
+            }
+            case MARKERS_BY_ID -> {
                queryBuilder.setTables(MarkerColumns.TABLE_NAME);
                queryBuilder.appendWhere(MarkerColumns._ID + "=" + ContentUris.parseId(url));
-                break;
-            case MARKERS_BY_TRACKID:
+            }
+            case MARKERS_BY_TRACKID -> {
                queryBuilder.setTables(MarkerColumns.TABLE_NAME);
                queryBuilder.appendWhere(MarkerColumns.TRACKID + " IN (" + TextUtils.join(SQL_LIST_DELIMITER, ContentProviderUtils.parseTrackIdsFromUri(url)) + ")");
-                break;
-            default:
-                throw new IllegalArgumentException("Unknown url " + url);
+            }
+            default -> throw new IllegalArgumentException("Unknown url " + url);
        }
        Cursor cursor = queryBuilder.query(db, projection, selection, selectionArgs, null, null, sortOrder);
        cursor.setNotificationUri(getContext().getContentResolver(), url);
@@ -304,41 +287,40 @@ public class CustomContentProvider extends ContentProvider {
        String table;
        String whereClause;
        switch (getUrlType(url)) {
-            case TRACKPOINTS:
+            case TRACKPOINTS -> {
                table = TrackPointsColumns.TABLE_NAME;
                whereClause = where;
-                break;
-            case TRACKPOINTS_BY_ID:
+            }
+            case TRACKPOINTS_BY_ID -> {
                table = TrackPointsColumns.TABLE_NAME;
                whereClause = TrackPointsColumns._ID + "=" + ContentUris.parseId(url);
                if (!TextUtils.isEmpty(where)) {
                    whereClause += " AND (" + where + ")";
                }
-                break;
-            case TRACKS:
+            }
+            case TRACKS -> {
                table = TracksColumns.TABLE_NAME;
                whereClause = where;
-                break;
-            case TRACKS_BY_ID:
+            }
+            case TRACKS_BY_ID -> {
                table = TracksColumns.TABLE_NAME;
                whereClause = TracksColumns._ID + "=" + ContentUris.parseId(url);
                if (!TextUtils.isEmpty(where)) {
                    whereClause += " AND (" + where + ")";
                }
-                break;
-            case MARKERS:
+            }
+            case MARKERS -> {
                table = MarkerColumns.TABLE_NAME;
                whereClause = where;
-                break;
-            case MARKERS_BY_ID:
+            }
+            case MARKERS_BY_ID -> {
                table = MarkerColumns.TABLE_NAME;
                whereClause = MarkerColumns._ID + "=" + ContentUris.parseId(url);
                if (!TextUtils.isEmpty(where)) {
                    whereClause += " AND (" + where + ")";
                }
-                break;
-            default:
-                throw new IllegalArgumentException("Unknown url " + url);
+            }
+            default -> throw new IllegalArgumentException("Unknown url " + url);
        }
        int count;
        try {
@@ -371,16 +353,12 @@ public class CustomContentProvider extends ContentProvider {
     * @param contentValues the content values
     */
    private Uri insertContentValues(Uri url, UrlType urlType, ContentValues contentValues) {
-        switch (urlType) {
-            case TRACKPOINTS:
-                return insertTrackPoint(url, contentValues);
-            case TRACKS:
-                return insertTrack(url, contentValues);
-            case MARKERS:
-                return insertMarker(url, contentValues);
-            default:
-                throw new IllegalArgumentException("Unknown url " + url);
-        }
+        return switch (urlType) {
+            case TRACKPOINTS -> insertTrackPoint(url, contentValues);
+            case TRACKS -> insertTrack(url, contentValues);
+            case MARKERS -> insertMarker(url, contentValues);
+            default -> throw new IllegalArgumentException("Unknown url " + url);
+        };
    }

    private Uri insertTrackPoint(Uri url, ContentValues values) {
@@ -61,42 +61,18 @@ public class CustomSQLiteOpenHelper extends SQLiteOpenHelper {
        for (int toVersion = oldVersion + 1; toVersion <= newVersion; toVersion++) {
            Log.i(TAG, "Upgrade from " + oldVersion + " to " + toVersion);
            switch (toVersion) {
-                case 24:
-                    upgradeFrom23to24(db);
-                    break;
-                case 25:
-                    upgradeFrom24to25(db);
-                    break;
-                case 26:
-                    upgradeFrom25to26(db);
-                    break;
-                case 27:
-                    upgradeFrom26to27(db);
-                    break;
-                case 28:
-                    upgradeFrom27to28(db);
-                    break;
-                case 29:
-                    upgradeFrom28to29(db);
-                    break;
-                case 30:
-                    upgradeFrom29to30(db);
-                    break;
-                case 31:
-                    upgradeFrom30to31(db);
-                    break;
-                case 32:
-                    upgradeFrom31to32(db);
-                    break;
-                case 33:
-                    upgradeFrom32to33(db);
-                    break;
-                case 34:
-                    upgradeFrom33to34(db);
-                    break;
-
-                default:
-                    throw new RuntimeException("Not implemented: upgrade to " + toVersion);
+                case 24 -> upgradeFrom23to24(db);
+                case 25 -> upgradeFrom24to25(db);
+                case 26 -> upgradeFrom25to26(db);
+                case 27 -> upgradeFrom26to27(db);
+                case 28 -> upgradeFrom27to28(db);
+                case 29 -> upgradeFrom28to29(db);
+                case 30 -> upgradeFrom29to30(db);
+                case 31 -> upgradeFrom30to31(db);
+                case 32 -> upgradeFrom31to32(db);
+                case 33 -> upgradeFrom32to33(db);
+                case 34 -> upgradeFrom33to34(db);
+                default -> throw new RuntimeException("Not implemented: upgrade to " + toVersion);
            }
        }
    }
@@ -106,41 +82,18 @@ public class CustomSQLiteOpenHelper extends SQLiteOpenHelper {
        for (int toVersion = oldVersion - 1; toVersion >= newVersion; toVersion--) {
            Log.i(TAG, "Downgrade from " + oldVersion + " to " + toVersion);
            switch (toVersion) {
-                case 23:
-                    downgradeFrom24to23(db);
-                    break;
-                case 24:
-                    downgradeFrom25to24(db);
-                    break;
-                case 25:
-                    downgradeFrom26to25(db);
-                    break;
-                case 26:
-                    downgradeFrom27to26(db);
-                    break;
-                case 27:
-                    downgradeFrom28to27(db);
-                    break;
-                case 28:
-                    downgradeFrom29to28(db);
-                    break;
-                case 29:
-                    downgradeFrom30to29(db);
-                    break;
-                case 30:
-                    downgradeFrom31to30(db);
-                    break;
-                case 31:
-                    downgradeFrom32to31(db);
-                    break;
-                case 32:
-                    downgradeFrom33to32(db);
-                    break;
-                case 33:
-                    downgradeFrom34to33(db);
-                    break;
-                default:
-                    throw new RuntimeException("Not implemented: downgrade to " + toVersion);
+                case 23 -> downgradeFrom24to23(db);
+                case 24 -> downgradeFrom25to24(db);
+                case 25 -> downgradeFrom26to25(db);
+                case 26 -> downgradeFrom27to26(db);
+                case 27 -> downgradeFrom28to27(db);
+                case 28 -> downgradeFrom29to28(db);
+                case 29 -> downgradeFrom30to29(db);
+                case 30 -> downgradeFrom31to30(db);
+                case 31 -> downgradeFrom32to31(db);
+                case 32 -> downgradeFrom33to32(db);
+                case 33 -> downgradeFrom34to33(db);
+                default -> throw new RuntimeException("Not implemented: downgrade to " + toVersion);
            }
        }
    }
@@ -129,24 +129,18 @@ public class ShareContentProvider extends CustomContentProvider {
    }

    private static TrackFileFormat getTrackFileFormat(@NonNull Uri uri) {
-        switch (uriMatcher.match(uri)) {
-            case URI_GPX:
-                return TrackFileFormat.GPX;
-
-            case URI_KML_WITH_TRACKDETAIL_SENSORDATA:
-                return TrackFileFormat.KML_WITH_TRACKDETAIL_AND_SENSORDATA;
-
-            case URI_KMZ_WITH_TRACKDETAIL_AND_SENSORDATA:
-                return TrackFileFormat.KMZ_WITH_TRACKDETAIL_AND_SENSORDATA;
-            case URI_KMZ_WITH_TRACKDETAIL_SENSORDATA_AND_PICTURES:
-                return TrackFileFormat.KMZ_WITH_TRACKDETAIL_AND_SENSORDATA_AND_PICTURES;
-
-            case URI_CSV:
-                return TrackFileFormat.CSV;
-
-            default:
-                throw new RuntimeException("Could not derive TrackFileFormat from Uri " + uri);
-        }
+        return switch (uriMatcher.match(uri)) {
+            case URI_GPX -> TrackFileFormat.GPX;
+            case URI_KML_WITH_TRACKDETAIL_SENSORDATA ->
+                    TrackFileFormat.KML_WITH_TRACKDETAIL_AND_SENSORDATA;
+            case URI_KMZ_WITH_TRACKDETAIL_AND_SENSORDATA ->
+                    TrackFileFormat.KMZ_WITH_TRACKDETAIL_AND_SENSORDATA;
+            case URI_KMZ_WITH_TRACKDETAIL_SENSORDATA_AND_PICTURES ->
+                    TrackFileFormat.KMZ_WITH_TRACKDETAIL_AND_SENSORDATA_AND_PICTURES;
+            case URI_CSV -> TrackFileFormat.CSV;
+            default ->
+                    throw new RuntimeException("Could not derive TrackFileFormat from Uri " + uri);
+        };
    }

    @Nullable
@@ -170,14 +164,14 @@ public class ShareContentProvider extends CustomContentProvider {
        int i = 0;
        for (String col : projection) {
            switch (col) {
-                case OpenableColumns.DISPLAY_NAME:
+                case OpenableColumns.DISPLAY_NAME -> {
                    cols[i] = OpenableColumns.DISPLAY_NAME;
                    values[i++] = uri.getLastPathSegment();
-                    break;
-                case OpenableColumns.SIZE:
+                }
+                case OpenableColumns.SIZE -> {
                    cols[i] = OpenableColumns.SIZE;
                    values[i++] = -1; //Report unknown size; if applications need to know, one need to generate the file here also (count bytes that are written to OutputStream.
-                    break;
+                }
            }
        }

@@ -214,12 +208,12 @@ public class ShareContentProvider extends CustomContentProvider {
            }
        }

-        final TrackExporter trackExporter = getTrackFileFormat(uri).createTrackExporter(getContext());
+        final TrackExporter trackExporter = getTrackFileFormat(uri).createTrackExporter(getContext(), new ContentProviderUtils(getContext()));

        PipeDataWriter<String> pipeDataWriter = (output, uri1, mimeType, opts, args) -> {
            try (FileOutputStream fileOutputStream = new FileOutputStream(output.getFileDescriptor())) {
                // TODO handle failure (i.e., do not export an empty file)
-                trackExporter.writeTrack(tracks.toArray(new Track[0]), fileOutputStream);
+                trackExporter.writeTrack(tracks, fileOutputStream);
            } catch (IOException e) {
                Log.w(TAG, "there occurred an error while sharing a file: " + e);
            }
@@ -30,9 +30,9 @@ public class TrackSelection implements ContentProviderUtils.ContentProviderSelec
        return this;
    }

-    public TrackSelection addCategory(String category) {
-        if (!this.categories.contains(category)) {
-            this.categories.add(category);
+    public TrackSelection addActivityType(String activityType) {
+        if (!this.categories.contains(activityType)) {
+            this.categories.add(activityType);
        }
        return this;
    }
@@ -53,7 +53,7 @@ public class TrackSelection implements ContentProviderUtils.ContentProviderSelec
        }
        if (!categories.isEmpty()) {
            selection += selection.isEmpty() ? "" : " AND ";
-            selection += String.format(TracksColumns.CATEGORY + " IN (%s)", TextUtils.join(",", Collections.nCopies(categories.size(), "?")));
+            selection += String.format(TracksColumns.ACTIVITY_TYPE + " IN (%s)", TextUtils.join(",", Collections.nCopies(categories.size(), "?")));
        }
        if (from != null && to != null) {
            selection += selection.isEmpty() ? "" : " AND ";
@@ -0,0 +1,79 @@
+package de.dennisguse.opentracks.data.models;
+
+import android.content.Context;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import de.dennisguse.opentracks.R;
+
+public enum ActivityType {
+    AIRPLANE("AIRPLANE", R.drawable.ic_activity_flight_24dp, true, R.string.activity_type_airplane, R.string.activity_type_commercial_airplane, R.string.activity_type_rc_airplane),
+    BIKE("BIKE", R.drawable.ic_activity_bike_24dp, true, R.string.activity_type_biking, R.string.activity_type_cycling, R.string.activity_type_dirt_bike, R.string.activity_type_road_biking, R.string.activity_type_track_cycling),
+    MOUNTAIN_BIKE("MOUNTAIN_BIKE", R.drawable.ic_activity_mtb_24dp, true, R.string.activity_type_mountain_biking),
+    MOTOR_BIKE("MOTOR_BIKE", R.drawable.ic_activity_motorbike_24dp, true, R.string.activity_type_motor_bike),
+    KAYAK("KAYAK", R.drawable.ic_activity_kayaking_24dp, true, R.string.activity_type_kayaking),
+    BOAT("BOAT", R.drawable.ic_activity_boat_24dp, true, R.string.activity_type_boat, R.string.activity_type_ferry, R.string.activity_type_motor_boating, R.string.activity_type_rc_boat),
+    SAILING("SAILING", R.drawable.ic_activity_sailing_24dp, true, R.string.activity_type_sailing),
+    DRIVE("DRIVE", R.drawable.ic_activity_drive_24dp, true, R.string.activity_type_atv, R.string.activity_type_driving, R.string.activity_type_driving_bus, R.string.activity_type_driving_car),
+    RUN("RUN", R.drawable.ic_activity_run_24dp, false, R.string.activity_type_running, R.string.activity_type_street_running, R.string.activity_type_track_running, R.string.activity_type_trail_running),
+    SKI("SKI", R.drawable.ic_activity_skiing_24dp, true, R.string.activity_type_cross_country_skiing, R.string.activity_type_skiing),
+    SNOW_BOARDING("SNOW_BOARDING", R.drawable.ic_activity_snowboarding_24dp, true, R.string.activity_type_snow_boarding),
+    UNKNOWN("UNKNOWN", R.drawable.ic_logo_24dp, true, R.string.activity_type_unknown),
+    WALK("WALK", R.drawable.ic_activity_walk_24dp, false, R.string.activity_type_hiking, R.string.activity_type_off_trail_hiking, R.string.activity_type_speed_walking, R.string.activity_type_trail_hiking, R.string.activity_type_walking),
+    ESCOOTER("ESCOOTER", R.drawable.ic_activity_escooter_24dp, true, R.string.activity_type_escooter),
+    INLINE_SKATING("INLINES_SKATING", R.drawable.ic_activity_inline_skating_24dp, true, R.string.activity_type_inline_skating),
+    SKATE_BOARDING("SKATE_BOARDING", R.drawable.ic_activity_skateboarding_24dp, true, R.string.activity_type_skate_boarding),
+    CLIMBING("CLIMBING", R.drawable.ic_activity_climbing_24dp, false, R.string.activity_type_climbing),
+    SWIMMING("SWIMMING", R.drawable.ic_activity_swimming_24dp, false, R.string.activity_type_swimming),
+    SWIMMING_OPEN("SWIMMING_OPEN", R.drawable.ic_activity_swimming_open_24dp, false, R.string.activity_type_swimming_open),
+    WORKOUT("WORKOUT", R.drawable.ic_activity_workout_24dp, false, R.string.activity_type_workout);
+
+    final String id;
+    final int iconId;
+    final boolean showSpeedPreferred;
+    final int[] localizedStringIds;
+
+    //isSpeed?
+
+    ActivityType(String id, int iconId, boolean showSpeedPreferred, int... localizedStringIds) {
+        this.id = id;
+        this.iconId = iconId;
+        this.showSpeedPreferred = showSpeedPreferred;
+        this.localizedStringIds = localizedStringIds;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public int getIconId() {
+        return iconId;
+    }
+
+    public boolean isShowSpeedPreferred() {
+        return showSpeedPreferred;
+    }
+
+    public int[] getLocalizedStringIds() {
+        return localizedStringIds;
+    }
+
+    public int getFirstLocalizedStringId() {
+        return localizedStringIds[0];
+    }
+
+    public static List<String> getLocalizedStrings(Context context) {
+        List<String> result = new ArrayList<>();
+        for (ActivityType activityType : values()) {
+            List<String> strings = Arrays.stream(activityType.localizedStringIds)
+                    .mapToObj(context::getString)
+                    .collect(Collectors.toList());
+            result.addAll(strings);
+        }
+
+        return result;
+    }
+}
@@ -15,9 +15,7 @@ public abstract class Altitude {
    public double toM() {
        return altitude_m;
    }
-
-    public abstract Altitude replace(double altitude_m);
-
+    
    public abstract int getLabelId();

    public static class WGS84 extends Altitude {
@@ -31,12 +29,7 @@ public abstract class Altitude {
            return R.string.wgs84;
        }

-        public static Altitude of(double altitude_m) {
-            return new WGS84(altitude_m);
-        }
-
-        @Override
-        public Altitude replace(double altitude_m) {
+        public static WGS84 of(double altitude_m) {
            return new WGS84(altitude_m);
        }
    }
@@ -52,12 +45,7 @@ public abstract class Altitude {
            return R.string.egm2008;
        }

-        public static Altitude of(double altitude_m) {
-            return new EGM2008(altitude_m);
-        }
-
-        @Override
-        public Altitude replace(double altitude_m) {
+        public static EGM2008 of(double altitude_m) {
            return new EGM2008(altitude_m);
        }
    }
@@ -0,0 +1,22 @@
+package de.dennisguse.opentracks.data.models;
+
+import java.util.Objects;
+
+public record AtmosphericPressure(float value) {
+
+    public static AtmosphericPressure ofPA(float value_Pa) {
+        return new AtmosphericPressure(value_Pa * 100);
+    }
+
+    public static AtmosphericPressure ofHPA(float value_hPa) {
+        return new AtmosphericPressure(value_hPa);
+    }
+
+    public float getPA() {
+        return value * 100;
+    }
+
+    public float getHPA() {
+        return value;
+    }
+}
@@ -0,0 +1,8 @@
+package de.dennisguse.opentracks.data.models;
+
+public record BatteryLevel(int percentage) {
+
+    public static BatteryLevel of(int percentage) {
+        return new BatteryLevel(percentage);
+    }
+}
@@ -5,7 +5,7 @@ import androidx.annotation.NonNull;
 import java.time.Duration;
 import java.util.Objects;

-public class Cadence {
+public record Cadence(float value_rpm) {

    public static Cadence of(float value, Duration duration) {
        if (duration.isZero()) {
@@ -23,34 +23,7 @@ public class Cadence {
        return of(0.0f);
    }

-    private final float value_rpm;
-
-    private Cadence(float value) {
-        this.value_rpm = value;
-    }
-
    public float getRPM() {
        return value_rpm;
    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-        Cadence cadence = (Cadence) o;
-        return Float.compare(cadence.value_rpm, value_rpm) == 0;
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(value_rpm);
-    }
-
-    @NonNull
-    @Override
-    public String toString() {
-        return "Cadence{" +
-                "value=" + value_rpm + " rpm" +
-                '}';
-    }
 }
@@ -3,16 +3,13 @@ package de.dennisguse.opentracks.data.models;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;

-import java.util.Objects;
-
 import de.dennisguse.opentracks.settings.UnitSystem;

-public class Distance {
+public record Distance(double distance_m) {

    public static Distance of(double distance_m) {
        return new Distance(distance_m);
    }
-
    public static Distance of(Double distance_m) {
        if (distance_m == null) {
            return Distance.of(Double.NaN);
@@ -20,11 +17,9 @@ public class Distance {
            return Distance.of((double) distance_m);
        }
    }
-
    public static Distance of(String distance_m) {
        return of(Float.parseFloat(distance_m));
    }
-
    @Nullable
    public static Distance ofOrNull(Double distance_m) {
        if (distance_m == null) {
@@ -58,22 +53,11 @@ public class Distance {
    }

    public static Distance one(UnitSystem unitSystem) {
-        switch (unitSystem) {
-            case METRIC:
-                return Distance.ofKilometer(1);
-            case IMPERIAL:
-                return Distance.ofMile(1);
-            case NAUTICAL_IMPERIAL:
-                return Distance.ofNauticalMile(1);
-            default:
-                throw new RuntimeException("Not implemented");
-        }
-    }
-
-    private final double distance_m;
-
-    private Distance(double distance_m) {
-        this.distance_m = distance_m;
+        return switch (unitSystem) {
+            case METRIC -> Distance.ofKilometer(1);
+            case IMPERIAL_FEET, IMPERIAL_METER -> Distance.ofMile(1);
+            case NAUTICAL_IMPERIAL -> Distance.ofNauticalMile(1);
+        };
    }

    public Distance plus(@NonNull Distance distance) {
@@ -133,49 +117,18 @@ public class Distance {
    }

    public double toKM_Miles(UnitSystem unitSystem) {
-        switch (unitSystem) {
-            case METRIC:
-                return toKM();
-            case IMPERIAL:
-                return toMI();
-            case NAUTICAL_IMPERIAL:
-                return toNauticalMiles();
-            default:
-                throw new RuntimeException("Not implemented");
-        }
+        return switch (unitSystem) {
+            case METRIC -> toKM();
+            case IMPERIAL_FEET, IMPERIAL_METER -> toMI();
+            case NAUTICAL_IMPERIAL -> toNauticalMiles();
+        };
    }

    public double toM_FT(UnitSystem unitSystem) {
-        switch (unitSystem) {
-            case METRIC:
-                return toM();
-            case NAUTICAL_IMPERIAL:
-            case IMPERIAL:
-                return toFT();
-            default:
-                throw new RuntimeException("Not implemented");
-        }
-    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-        Distance distance = (Distance) o;
-        return Double.compare(distance.distance_m, distance_m) == 0;
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(distance_m);
-    }
-
-    @NonNull
-    @Override
-    public String toString() {
-        return "Distance{" +
-                "distance_m=" + distance_m +
-                '}';
+        return switch (unitSystem) {
+            case METRIC, IMPERIAL_METER -> toM();
+            case NAUTICAL_IMPERIAL, IMPERIAL_FEET -> toFT();
+        };
    }

    // multiplication factors for conversion
@@ -46,38 +46,44 @@ public class DistanceFormatter {
    public Pair<String, String> getDistanceParts(Distance distance) {
        if (distance.isInvalid()) {
            String valueUnknown = resources.getString(R.string.value_unknown);
-            switch (unitSystem) {
-                case METRIC:
-                    return new Pair<>(valueUnknown, resources.getString(R.string.unit_meter));
-                case IMPERIAL:
-                case NAUTICAL_IMPERIAL:
-                    return new Pair<>(valueUnknown, resources.getString(R.string.unit_feet));
-                default:
-                    throw new RuntimeException("Not implemented");
-            }
+            return switch (unitSystem) {
+                case METRIC, IMPERIAL_METER ->
+                        new Pair<>(valueUnknown, resources.getString(R.string.unit_meter));
+                case IMPERIAL_FEET, NAUTICAL_IMPERIAL ->
+                        new Pair<>(valueUnknown, resources.getString(R.string.unit_feet));
+            };
        }

        switch (unitSystem) {
-            case METRIC:
+            case METRIC -> {
                if (distance.greaterThan(Distance.ofKilometer(threshold))) {
                    return new Pair<>(StringUtils.formatDecimal(distance.toKM(), decimalCount), resources.getString(R.string.unit_kilometer));
                } else {
                    return new Pair<>(StringUtils.formatDecimal(distance.toM(), decimalCount), resources.getString(R.string.unit_meter));
                }
-            case IMPERIAL:
+            }
+            case IMPERIAL_FEET -> {
                if (distance.greaterThan(Distance.ofMile(threshold))) {
                    return new Pair<>(StringUtils.formatDecimal(distance.toMI(), decimalCount), resources.getString(R.string.unit_mile));
                } else {
                    return new Pair<>(StringUtils.formatDecimal(distance.toFT(), decimalCount), resources.getString(R.string.unit_feet));
                }
-            case NAUTICAL_IMPERIAL:
+            }
+            case IMPERIAL_METER -> {
+                if (distance.greaterThan(Distance.ofMile(threshold))) {
+                    return new Pair<>(StringUtils.formatDecimal(distance.toMI(), decimalCount), resources.getString(R.string.unit_mile));
+                } else {
+                    return new Pair<>(StringUtils.formatDecimal(distance.toM(), decimalCount), resources.getString(R.string.unit_meter));
+                }
+            }
+            case NAUTICAL_IMPERIAL -> {
                if (distance.greaterThan(Distance.ofNauticalMile(threshold))) {
                    return new Pair<>(StringUtils.formatDecimal(distance.toNauticalMiles(), decimalCount), resources.getString(R.string.unit_nautical_mile));
                } else {
                    return new Pair<>(StringUtils.formatDecimal(distance.toFT(), decimalCount), resources.getString(R.string.unit_feet));
                }
-            default:
-                throw new RuntimeException("Not implemented");
+            }
+            default -> throw new RuntimeException("Not implemented");
        }
    }

@@ -4,40 +4,13 @@ import androidx.annotation.NonNull;

 import java.util.Objects;

-public class HeartRate {
+public record HeartRate(float value) {

    public static HeartRate of(float value) {
        return new HeartRate(value);
    }

-    private final float value;
-
-    private HeartRate(float value) {
-        this.value = value;
-    }
-
    public float getBPM() {
        return value;
    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-        HeartRate heartRate = (HeartRate) o;
-        return Float.compare(heartRate.value, value) == 0;
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(value);
-    }
-
-    @NonNull
-    @Override
-    public String toString() {
-        return "HeartRate{" +
-                "value=" + value + " bpm" +
-                '}';
-    }
 }
@@ -0,0 +1,38 @@
+package de.dennisguse.opentracks.data.models;
+
+import android.content.Context;
+
+import androidx.annotation.NonNull;
+import androidx.core.content.ContextCompat;
+
+import de.dennisguse.opentracks.R;
+import de.dennisguse.opentracks.ui.util.ThemeUtils;
+
+public class HeartRateZones {
+
+    private final HeartRate max;
+
+    public HeartRateZones(@NonNull HeartRate max) {
+        this.max = max;
+    }
+
+    public int getTextColorForZone(Context context, HeartRate current) {
+        if (current != null) {
+            if (current.getBPM() >= max.getBPM() * 0.9) {
+                return ContextCompat.getColor(context, R.color.heart_rate_zone_textcolor_5);
+            }
+            if (current.getBPM() >= max.getBPM() * 0.8) {
+                return ContextCompat.getColor(context, R.color.heart_rate_zone_textcolor_4);
+            }
+            if (current.getBPM() >= max.getBPM() * 0.7) {
+                return ContextCompat.getColor(context, R.color.heart_rate_zone_textcolor_3);
+            }
+            if (current.getBPM() >= max.getBPM() * 0.6) {
+                return ContextCompat.getColor(context, R.color.heart_rate_zone_textcolor_2);
+            }
+        }
+
+        // Zone 1
+        return ThemeUtils.getTextColorPrimary(context);
+    }
+}
@@ -26,7 +26,6 @@ import androidx.annotation.Nullable;

 import java.time.Duration;
 import java.time.Instant;
-import java.util.Objects;

 import de.dennisguse.opentracks.stats.TrackStatistics;

@@ -267,31 +266,7 @@ public final class Marker {
        return photoUrl != null && !"".equals(photoUrl);
    }

-    public static class Id implements Parcelable {
-
-        private final long id;
-
-        public Id(long id) {
-            this.id = id;
-        }
-
-        //TOOD Limit visibility to TrackRecordingService / ContentProvider
-        public long getId() {
-            return id;
-        }
-
-        @Override
-        public boolean equals(Object o) {
-            if (this == o) return true;
-            if (o == null || getClass() != o.getClass()) return false;
-            Id id1 = (Id) o;
-            return id == id1.id;
-        }
-
-        @Override
-        public int hashCode() {
-            return Objects.hash(id);
-        }
+    public record Id(long id) implements Parcelable {

        @NonNull
        @Override
@@ -309,7 +284,7 @@ public final class Marker {
            parcel.writeLong(id);
        }

-        public static final Parcelable.Creator<Id> CREATOR = new Parcelable.Creator<>() {
+        public static final Creator<Id> CREATOR = new Creator<>() {
            public Id createFromParcel(Parcel in) {
                return new Id(in.readLong());
            }
@@ -4,40 +4,13 @@ import androidx.annotation.NonNull;

 import java.util.Objects;

-public class Power {
+public record Power(float value) {

    public static Power of(float value) {
        return new Power(value);
    }

-    private final float value;
-
-    private Power(float value) {
-        this.value = value;
-    }
-
    public float getW() {
        return value;
    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-        Power power = (Power) o;
-        return Float.compare(power.value, value) == 0;
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(value);
-    }
-
-    @NonNull
-    @Override
-    public String toString() {
-        return "Power{" +
-                "value=" + value + " W" +
-                '}';
-    }
 }
@@ -1,14 +1,11 @@
 package de.dennisguse.opentracks.data.models;

-import androidx.annotation.NonNull;
-
 import java.time.Duration;
-import java.util.Objects;

 import de.dennisguse.opentracks.settings.PreferencesUtils;
 import de.dennisguse.opentracks.settings.UnitSystem;

-public class Speed {
+public record Speed(double speed_mps) {

    public static Speed of(Distance distance, Duration duration) {
        if (duration.isZero()) {
@@ -47,12 +44,6 @@ public class Speed {
        return Speed.of(Math.abs(speed1.speed_mps - speed2.speed_mps));
    }

-    private final double speed_mps;
-
-    private Speed(double speed_mps) {
-        this.speed_mps = speed_mps;
-    }
-
    public Speed mul(double factor) {
        return new Speed(factor * speed_mps);
    }
@@ -115,36 +106,10 @@ public class Speed {
    }

    public double to(UnitSystem unitSystem) {
-        switch (unitSystem) {
-            case METRIC:
-                return toKMH();
-            case IMPERIAL:
-                return toMPH();
-            case NAUTICAL_IMPERIAL:
-                return toKnots();
-            default:
-                throw new RuntimeException("Not implemented");
-        }
-    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-        Speed speed = (Speed) o;
-        return Double.compare(speed.speed_mps, speed_mps) == 0;
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(speed_mps);
-    }
-
-    @NonNull
-    @Override
-    public String toString() {
-        return "Speed{" +
-                "speed_mps=" + speed_mps +
-                '}';
+        return switch (unitSystem) {
+            case METRIC -> toKMH();
+            case IMPERIAL_FEET, IMPERIAL_METER -> toMPH();
+            case NAUTICAL_IMPERIAL -> toKnots();
+        };
    }
 }
@@ -39,20 +39,14 @@ public class SpeedFormatter {
     * @return the formatted speed (or null) and it's unit as {@link Pair}
     */
    public Pair<String, String> getSpeedParts(Speed speed) {
-        int unitId;
-        switch (unitSystem) {
-            case METRIC:
-                unitId = reportSpeedOrPace ? R.string.unit_kilometer_per_hour : R.string.unit_minute_per_kilometer;
-                break;
-            case IMPERIAL:
-                unitId = reportSpeedOrPace ? R.string.unit_mile_per_hour : R.string.unit_minute_per_mile;
-                break;
-            case NAUTICAL_IMPERIAL:
-                unitId = reportSpeedOrPace ? R.string.unit_knots : R.string.unit_minute_per_nautical_mile;
-                break;
-            default:
-                throw new RuntimeException("Not implemented");
-        }
+        int unitId = switch (unitSystem) {
+            case METRIC ->
+                    reportSpeedOrPace ? R.string.unit_kilometer_per_hour : R.string.unit_minute_per_kilometer;
+            case IMPERIAL_FEET, IMPERIAL_METER ->
+                    reportSpeedOrPace ? R.string.unit_mile_per_hour : R.string.unit_minute_per_mile;
+            case NAUTICAL_IMPERIAL ->
+                    reportSpeedOrPace ? R.string.unit_knots : R.string.unit_minute_per_nautical_mile;
+        };

        String unitString = resources.getString(unitId);

@@ -44,7 +44,7 @@ public class Track {

    private String name = "";
    private String description = "";
-    private String category = "";
+    private String activityType = "";

    private String icon = "";

@@ -97,12 +97,12 @@ public class Track {
        this.description = description;
    }

-    public String getCategory() {
-        return category;
+    public String getActivityType() {
+        return activityType;
    }

-    public void setCategory(String category) {
-        this.category = category;
+    public void setActivityType(String activityType) {
+        this.activityType = activityType;
    }

    public String getIcon() {
@@ -385,10 +385,6 @@ public class TrackPoint {
        return this;
    }

-    public boolean hasSensorData() {
-        return hasHeartRate() || hasCadence() || hasPower();
-    }
-
    public boolean hasHeartRate() {
        return heartRate != null;
    }
@@ -39,7 +39,7 @@ public interface TracksColumns extends BaseColumns {
    String UUID = "uuid"; // identifier to make tracks globally unique (prevent re-import)
    String NAME = "name"; // track name
    String DESCRIPTION = "description"; // track description
-    String CATEGORY = "category"; // track activity type
+    String ACTIVITY_TYPE = "category"; // track activity type
    String STARTTIME = "starttime"; // track start time
    String STARTTIME_OFFSET = "starttime_offset"; // in plus/minus in seconds
    String STOPTIME = "stoptime"; // track stop time
@@ -63,7 +63,7 @@ public interface TracksColumns extends BaseColumns {
            + _ID + " INTEGER PRIMARY KEY AUTOINCREMENT, "
            + NAME + " TEXT, "
            + DESCRIPTION + " TEXT, "
-            + CATEGORY + " TEXT, "
+            + ACTIVITY_TYPE + " TEXT, "
            + STARTTIME + " INTEGER, "
            + STOPTIME + " INTEGER, "
            + NUMPOINTS + " INTEGER, "
@@ -78,7 +78,7 @@ class ChooseActivityTypeImageAdapter extends BaseAdapter {
        }

        if (position == selected) {
-            imageView.setBackgroundColor(ContextCompat.getColor(parent.getContext(), R.color.opentracks_secondary_color));
+            imageView.setBackgroundColor(ContextCompat.getColor(parent.getContext(), R.color.opentracks));
        } else {
            imageView.setBackgroundColor(Color.TRANSPARENT);
        }
@@ -31,11 +31,8 @@ import androidx.fragment.app.Fragment;
 import androidx.recyclerview.widget.GridLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;

-import java.util.List;
-
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.TrackRecordedActivity;
-import de.dennisguse.opentracks.adapters.StatisticsAdapter;
 import de.dennisguse.opentracks.data.ContentProviderUtils;
 import de.dennisguse.opentracks.data.models.DistanceFormatter;
 import de.dennisguse.opentracks.data.models.SpeedFormatter;
@@ -47,8 +44,6 @@ import de.dennisguse.opentracks.stats.SensorStatistics;
 import de.dennisguse.opentracks.stats.TrackStatistics;
 import de.dennisguse.opentracks.util.StringUtils;
 import de.dennisguse.opentracks.util.TrackIconUtils;
-import de.dennisguse.opentracks.viewmodels.StatisticData;
-import de.dennisguse.opentracks.viewmodels.StatisticDataBuilder;

 /**
 * A fragment to display track statistics to the user for a recorded {@link Track}.
@@ -72,7 +67,6 @@ public class StatisticsRecordedFragment extends Fragment {
    }

    private SensorStatistics sensorStatistics;
-    private StatisticsAdapter.WithRecordedLayout sensorsAdapter;

    private Track.Id trackId;
    @Nullable // Lazily loaded.
@@ -95,7 +89,7 @@ public class StatisticsRecordedFragment extends Fragment {

        if (PreferencesUtils.isKey(R.string.stats_rate_key, key) && track != null) {
            updateUInecessary = true;
-            preferenceReportSpeed = PreferencesUtils.isReportSpeed(track.getCategory());
+            preferenceReportSpeed = PreferencesUtils.isReportSpeed(track.getActivityType());
        }

        if (key != null && updateUInecessary && isResumed()) {
@@ -113,8 +107,6 @@ public class StatisticsRecordedFragment extends Fragment {

        trackId = getArguments().getParcelable(TRACK_ID_KEY);
        contentProviderUtils = new ContentProviderUtils(getContext());
-
-        sensorsAdapter = new StatisticsAdapter.WithRecordedLayout(getContext());
    }

    @Override
@@ -123,7 +115,7 @@ public class StatisticsRecordedFragment extends Fragment {

        RecyclerView sensorsRecyclerView = viewBinding.statsSensorsRecyclerView;
        sensorsRecyclerView.setLayoutManager(new GridLayoutManager(getContext(), 2));
-        sensorsRecyclerView.setAdapter(sensorsAdapter);
+//        sensorsRecyclerView.setAdapter(sensorsAdapter);

        return viewBinding.getRoot();
    }
@@ -163,7 +155,7 @@ public class StatisticsRecordedFragment extends Fragment {

                    sensorStatistics = contentProviderUtils.getSensorStats(trackId);

-                    boolean prefsChanged = this.track == null || (!this.track.getCategory().equals(track.getCategory()));
+                    boolean prefsChanged = this.track == null || (!this.track.getActivityType().equals(track.getActivityType()));
                    this.track = track;
                    if (prefsChanged) {
                        sharedPreferenceChangeListener.onSharedPreferenceChanged(null, getString(R.string.stats_rate_key));
@@ -199,7 +191,7 @@ public class StatisticsRecordedFragment extends Fragment {

        // Set activity type
        {
-            String trackIconValue = TrackIconUtils.getIconValue(getContext(), track.getCategory());
+            String trackIconValue = TrackIconUtils.getIconValue(getContext(), track.getActivityType());
            viewBinding.statsActivityTypeIcon.setImageDrawable(ContextCompat.getDrawable(getContext(), TrackIconUtils.getIconDrawable(trackIconValue)));
        }

@@ -261,10 +253,6 @@ public class StatisticsRecordedFragment extends Fragment {
        if (sensorStatistics == null) {
            return;
        }
-
-        List<StatisticData> sensorDataList = StatisticDataBuilder.fromSensorStatistics(getContext(), sensorStatistics);
-        if (sensorDataList.size() > 0) {
-            sensorsAdapter.swapData(sensorDataList);
-        }
+        //TODO
    }
 }
@@ -2,6 +2,7 @@ package de.dennisguse.opentracks.fragments;

 import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -9,16 +10,14 @@ import android.view.ViewGroup;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.ViewModelProvider;
-import androidx.recyclerview.widget.DividerItemDecoration;
-import androidx.recyclerview.widget.GridLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
+import androidx.gridlayout.widget.GridLayout;

+import java.util.LinkedList;
 import java.util.List;
+import java.util.Map;
+import java.util.concurrent.Callable;

 import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.adapters.StatisticsAdapter;
 import de.dennisguse.opentracks.data.models.Track;
 import de.dennisguse.opentracks.databinding.StatisticsRecordingBinding;
 import de.dennisguse.opentracks.services.RecordingData;
@@ -26,9 +25,10 @@ import de.dennisguse.opentracks.services.TrackRecordingService;
 import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
 import de.dennisguse.opentracks.settings.PreferencesUtils;
 import de.dennisguse.opentracks.settings.UnitSystem;
-import de.dennisguse.opentracks.ui.customRecordingLayout.Layout;
-import de.dennisguse.opentracks.viewmodels.StatisticData;
-import de.dennisguse.opentracks.viewmodels.StatisticsDataModel;
+import de.dennisguse.opentracks.ui.customRecordingLayout.DataField;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayout;
+import de.dennisguse.opentracks.viewmodels.Mapping;
+import de.dennisguse.opentracks.viewmodels.StatisticViewHolder;

 /**
 * A fragment to display track statistics to the user for a currently recording {@link Track}.
@@ -48,32 +48,22 @@ public class StatisticsRecordingFragment extends Fragment {

    private RecordingData recordingData = TrackRecordingService.NOT_RECORDING;

-    private Layout layout;
+    private final List<StatisticViewHolder<?>> viewHolders = new LinkedList<>();
+
+    private RecordingLayout recordingLayout;

    private StatisticsRecordingBinding viewBinding;
-    private StatisticsAdapter statisticsAdapter;
-    private GridLayoutManager gridLayoutManager;
-    private StatisticsDataModel viewModel;
-    private LiveData<List<StatisticData>> statisticsLiveData;

    private UnitSystem unitSystem = UnitSystem.defaultUnitSystem();

    private final SharedPreferences.OnSharedPreferenceChangeListener sharedPreferenceChangeListener = (sharedPreferences, key) -> {
-        boolean updateUInecessary = false;
-
        if (PreferencesUtils.isKey(R.string.stats_units_key, key)) {
-            updateUInecessary = true;
            unitSystem = PreferencesUtils.getUnitSystem();
+            updateDataOnUI();
        }

        if (PreferencesUtils.isKey(R.string.stats_custom_layouts_key, key) || PreferencesUtils.isKey(R.string.stats_custom_layout_selected_layout_key, key)) {
-            updateUInecessary = true;
-            layout = PreferencesUtils.getCustomLayout();
-            gridLayoutManager.setSpanCount(layout.getColumnsPerRow());
-        }
-
-        if (key != null && updateUInecessary && isResumed()) {
-            getActivity().runOnUiThread(this::updateUI);
+            onLayoutChanged(PreferencesUtils.getCustomLayout());
        }
    };

@@ -84,30 +74,11 @@ public class StatisticsRecordingFragment extends Fragment {
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        trackRecordingServiceConnection = new TrackRecordingServiceConnection(bindChangedCallback);
-
-        statisticsAdapter = new StatisticsAdapter(getContext());
    }

    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        viewBinding = StatisticsRecordingBinding.inflate(inflater, container, false);
-
-        RecyclerView recyclerView = viewBinding.statsRecyclerView;
-        recyclerView.addItemDecoration(new DividerItemDecoration(getContext(), RecyclerView.VERTICAL));
-        layout = PreferencesUtils.getCustomLayout();
-        gridLayoutManager = new GridLayoutManager(getContext(), layout.getColumnsPerRow());
-        gridLayoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
-            @Override
-            public int getSpanSize(int position) {
-                if (statisticsAdapter.isItemWide(position)) {
-                    return layout.getColumnsPerRow();
-                }
-                return 1;
-            }
-        });
-        recyclerView.setLayoutManager(gridLayoutManager);
-        recyclerView.setAdapter(statisticsAdapter);
-
        return viewBinding.getRoot();
    }

@@ -117,10 +88,6 @@ public class StatisticsRecordingFragment extends Fragment {

        PreferencesUtils.registerOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);

-        viewModel = new ViewModelProvider(getActivity()).get(StatisticsDataModel.class);
-        statisticsLiveData = viewModel.getStatsData();
-        statisticsLiveData.observe(getActivity(), statsDataList -> statisticsAdapter.swapData(statsDataList));
-
        trackRecordingServiceConnection.startConnection(getContext());
    }

@@ -139,6 +106,7 @@ public class StatisticsRecordingFragment extends Fragment {
    @Override
    public void onDestroyView() {
        super.onDestroyView();
+        viewHolders.clear();
        viewBinding = null;
    }

@@ -146,17 +114,54 @@ public class StatisticsRecordingFragment extends Fragment {
    public void onDestroy() {
        super.onDestroy();
        trackRecordingServiceConnection = null;
-        viewModel = null;
-
-        if (statisticsLiveData != null) {
-            statisticsLiveData.removeObservers(getActivity());
-        }
-        statisticsLiveData = null;
    }

-    private void updateUI() {
-        if (isResumed()) {
-            viewModel.update(recordingData, layout, unitSystem);
+    private void onLayoutChanged(@NonNull RecordingLayout newRecordingLayout) {
+        if (newRecordingLayout.equals(recordingLayout)) {
+            return;
+        }
+        recordingLayout = newRecordingLayout;
+
+        viewBinding.statsLayout.removeAllViews(); //Let's start from scratch
+        viewBinding.statsLayout.setColumnCount(recordingLayout.getColumnsPerRow());
+        viewHolders.clear();
+
+        Map<String, Callable<StatisticViewHolder<?>>> m = Mapping.create(getContext());
+
+        int rowIndex = 0;
+        int columnIndex = 0;
+        for (DataField dataField : recordingLayout.toRecordingLayout(true).getFields()) {
+            GridLayout.LayoutParams param = new GridLayout.LayoutParams();
+            param.setGravity(Gravity.FILL_HORIZONTAL);
+            param.width = 0;
+
+            if (dataField.isWide()) {
+                rowIndex++;
+                param.columnSpec = GridLayout.spec(0, recordingLayout.getColumnsPerRow(), 1);
+                param.rowSpec = GridLayout.spec(rowIndex, 1, 1);
+                columnIndex = 0;
+                rowIndex++;
+            } else {
+                if (columnIndex >= recordingLayout.getColumnsPerRow()) {
+                    columnIndex = 0;
+                    rowIndex++;
+                }
+                param.columnSpec = GridLayout.spec(columnIndex, 1, 1);
+                param.rowSpec = GridLayout.spec(rowIndex, 1, 1);
+
+                columnIndex++;
+            }
+
+            try {
+                StatisticViewHolder<?> viewHolder = m.get(dataField.getKey()).call();
+                viewHolder.initialize(getContext(), getLayoutInflater());
+                viewHolder.configureUI(dataField);
+                viewHolders.add(viewHolder);
+
+                viewBinding.statsLayout.addView(viewHolder.getView(), param);
+            } catch (Exception e) {
+                throw new RuntimeException("Could not add " + dataField.getKey(), e);
+            }
        }
    }

@@ -169,6 +174,12 @@ public class StatisticsRecordingFragment extends Fragment {
            sharedPreferenceChangeListener.onSharedPreferenceChanged(null, getString(R.string.stats_rate_key));
        }

-        updateUI();
+        updateDataOnUI();
+    }
+
+    private void updateDataOnUI() {
+        if (isResumed()) {
+            viewHolders.forEach(i -> i.onChanged(unitSystem, recordingData));
+        }
    }
 }
--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
				`一個尊重您的隱私的運動蹤跡紀錄器。`