Release v3.4.0

Requires including androidx.documentfile directly.

.github/workflows/test.yml

@@ -0,0 +1,21 @@
+#https://github.com/marketplace/actions/android-emulator-runner
+name: Test
+on: [push, pull_request]
+jobs:
+  test:
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        api-level: [21, 29]
+        target: [default]
+    steps:
+      - name: checkout
+        uses: actions/checkout@v2
+
+      - name: run tests
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: ${{ matrix.api-level }}
+          target: ${{ matrix.target }}
+          arch: x86_64
+          script: ./gradlew connectedCheck

.travis.yml

@@ -22,18 +22,18 @@ android:
     - android-29
 
 # Emulator Management: Create, Start and Wait
-#install:
+install:
-#  - echo y | sdkmanager "platform-tools"
+  - echo y | sdkmanager "platform-tools"
-#  - echo y | sdkmanager --channel=4 "emulator"
+  - echo y | sdkmanager --channel=4 "emulator"
-#  - echo y | sdkmanager "system-images;android-$API;$EMU_FLAVOR;$ABI"
+  - echo y | sdkmanager "system-images;android-$API;$EMU_FLAVOR;$ABI"
-#  - echo no | avdmanager create avd --force -n test -k "system-images;android-$API;$EMU_FLAVOR;$ABI" -c 10M
+  - echo no | avdmanager create avd --force -n test -k "system-images;android-$API;$EMU_FLAVOR;$ABI" -c 10M
-#  - emulator -verbose -avd test -no-accel -no-snapshot -no-window -camera-back none -camera-front none -selinux permissive -qemu -m 2048 &
+  - emulator -verbose -avd test -no-accel -no-snapshot -no-window -camera-back none -camera-front none -selinux permissive -qemu -m 2048 &
-#  - android-wait-for-emulator
+  - android-wait-for-emulator
-#  - adb shell input keyevent 82 &
+  - adb shell input keyevent 82 &
 
 script:
-  - ./gradlew clean build
+  - ./gradlew build
-#  - ./gradlew connectedCheck
+  - ./gradlew connectedCheck
 
 sbefore_cache:
   - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock

README_DEVELOPER.md

@@ -14,15 +14,15 @@ For the time being, the OpenTracks Data API can be used to implement mainly cust
 
 ## Implementation
 OpenTracks by default does not expose any data to 3rd-party applications.
-On the request of the user (i.e., pressing a button), an Intent is created that exposes the `Track` data (it's summary) as well as the `TrackPoint`s.
+On the request of the user (i.e., pressing a button), an Intent is created that exposes the `Track` data (it's summary) as well as the `TrackPoint`s of one or more selected tracks.
 For each, one URI is provided.
 These URIs notify observers if on content changes (e.g., a new `TrackPoint` was added).
 
 Limitations:
-* only tracks selected by the user is exposed,
+* only tracks selected by the user are exposed,
 * `Waypoints` are not exposed,
 * access is only granted temporarily and automatically revoked (see `FLAG_GRANT_READ_URI_PERMISSION`),
-* no write access is impossible, and
+* no write access is possible, and
 * neither track recordings can be started, paused, or stopped.
 
 All required information can be found in `IntentDashboardUtils.java`. 

build.gradle

@@ -98,6 +98,7 @@ android {
 dependencies {
     implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'androidx.preference:preference:1.1.0'
+    implementation 'androidx.documentfile:documentfile:1.0.1'
 
     androidTestImplementation 'androidx.test:core:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
@@ -109,5 +110,5 @@ dependencies {
 
     testImplementation 'androidx.test:core:1.2.0'
     testImplementation 'org.mockito:mockito-core:3.0.0'
-    implementation 'com.google.android.material:material:1.0.0'
+    implementation 'com.google.android.material:material:1.1.0'
 }

fastlane/metadata/android/en-US/changelogs/3287.txt

@@ -0,0 +1,12 @@
+v3.4.0: OpenTracks
+
+Changes:
+- Dashboard API: multiple tracks
+- Updated help
+
+Bugfix:
+- Fixed crash on fragment re-creation
+- When paused: prevent stopping app
+
+Developer:
+- Enable testing via CI (Github Actions and TravisCI)

src/androidTest/java/de/dennisguse/opentracks/content/provider/CustomContentProviderTest.java

@@ -16,6 +16,7 @@
 
 package de.dennisguse.opentracks.content.provider;
 
+import android.content.ContentUris;
 import android.content.Context;
 import android.database.sqlite.SQLiteDatabase;
 import android.net.Uri;
@@ -29,7 +30,6 @@ import org.junit.Test;
 import de.dennisguse.opentracks.content.data.TrackPointsColumns;
 import de.dennisguse.opentracks.content.data.TracksColumns;
 import de.dennisguse.opentracks.content.data.WaypointsColumns;
-import de.dennisguse.opentracks.content.provider.CustomContentProvider.DatabaseHelper;
 
 /**
  * Tests {@link CustomContentProvider}.
@@ -47,13 +47,13 @@ public class CustomContentProviderTest {
     @Before
     public void setUp() {
         context.deleteDatabase(DATABASE_NAME);
-        db = (new DatabaseHelper(context, DATABASE_NAME)).getWritableDatabase();
+        db = new CustomSQLiteOpenHelper(context, DATABASE_NAME).getWritableDatabase();
         customContentProvider = new CustomContentProvider() {
         };
     }
 
     /**
-     * Tests {@link CustomContentProvider.DatabaseHelper#onCreate(SQLiteDatabase)}.
+     * Tests {@link CustomSQLiteOpenHelper#onCreate(SQLiteDatabase)}.
      */
     @Test
     public void testDatabaseHelper_OnCreate() {
@@ -76,8 +76,13 @@ public class CustomContentProviderTest {
     @Test
     public void testGetType() {
         Assert.assertEquals(TracksColumns.CONTENT_TYPE, customContentProvider.getType(TracksColumns.CONTENT_URI));
-        Assert.assertEquals(TrackPointsColumns.CONTENT_TYPE, customContentProvider.getType(TrackPointsColumns.CONTENT_URI));
+        Assert.assertEquals(TracksColumns.CONTENT_ITEMTYPE, customContentProvider.getType(ContentUris.appendId(TracksColumns.CONTENT_URI.buildUpon(), 1).build()));
+
+        Assert.assertEquals(TrackPointsColumns.CONTENT_TYPE, customContentProvider.getType(TrackPointsColumns.CONTENT_URI_BY_ID));
+        Assert.assertEquals(TrackPointsColumns.CONTENT_ITEMTYPE, customContentProvider.getType(ContentUris.appendId(TrackPointsColumns.CONTENT_URI_BY_TRACKID.buildUpon(), 1).build()));
+
         Assert.assertEquals(WaypointsColumns.CONTENT_TYPE, customContentProvider.getType(WaypointsColumns.CONTENT_URI));
+        Assert.assertEquals(WaypointsColumns.CONTENT_ITEMTYPE, customContentProvider.getType(ContentUris.appendId(WaypointsColumns.CONTENT_URI.buildUpon(), 1).build()));
     }
 
     /**
@@ -142,7 +147,7 @@ public class CustomContentProviderTest {
         createTable(TrackPointsColumns.TABLE_NAME);
         createTable(WaypointsColumns.TABLE_NAME);
 
-        DatabaseHelper databaseHelper = new DatabaseHelper(context);
+        CustomSQLiteOpenHelper databaseHelper = new CustomSQLiteOpenHelper(context);
-        databaseHelper.onUpgrade(db, oldVersion, CustomContentProvider.DATABASE_VERSION);
+        databaseHelper.onUpgrade(db, oldVersion, CustomSQLiteOpenHelper.DATABASE_VERSION);
     }
 }

src/androidTest/java/de/dennisguse/opentracks/content/provider/CustomContentProviderUtilsTest.java

@@ -230,7 +230,7 @@ public class CustomContentProviderUtilsTest {
         ContentResolver contentResolver = context.getContentResolver();
         Cursor tracksCursor = contentResolver.query(TracksColumns.CONTENT_URI, null, null, null, TracksColumns._ID);
         Assert.assertEquals(1, tracksCursor.getCount());
-        Cursor tracksPointsCursor = contentResolver.query(TrackPointsColumns.CONTENT_URI, null, null, null, TrackPointsColumns._ID);
+        Cursor tracksPointsCursor = contentResolver.query(TrackPointsColumns.CONTENT_URI_BY_ID, null, null, null, TrackPointsColumns._ID);
         Assert.assertEquals(10, tracksPointsCursor.getCount());
         Cursor waypointCursor = contentResolver.query(WaypointsColumns.CONTENT_URI, null, null, null, WaypointsColumns._ID);
         Assert.assertEquals(1, waypointCursor.getCount());
@@ -239,7 +239,7 @@ public class CustomContentProviderUtilsTest {
         // Check whether all have been deleted.
         tracksCursor = contentResolver.query(TracksColumns.CONTENT_URI, null, null, null, TracksColumns._ID);
         Assert.assertEquals(0, tracksCursor.getCount());
-        tracksPointsCursor = contentResolver.query(TrackPointsColumns.CONTENT_URI, null, null, null, TrackPointsColumns._ID);
+        tracksPointsCursor = contentResolver.query(TrackPointsColumns.CONTENT_URI_BY_ID, null, null, null, TrackPointsColumns._ID);
         Assert.assertEquals(0, tracksPointsCursor.getCount());
         waypointCursor = contentResolver.query(WaypointsColumns.CONTENT_URI, null, null, null, WaypointsColumns._ID);
         Assert.assertEquals(0, waypointCursor.getCount());
@@ -265,7 +265,7 @@ public class CustomContentProviderUtilsTest {
         ContentResolver contentResolver = context.getContentResolver();
         Cursor tracksCursor = contentResolver.query(TracksColumns.CONTENT_URI, null, null, null, TracksColumns._ID);
         Assert.assertEquals(3, tracksCursor.getCount());
-        Cursor tracksPointsCursor = contentResolver.query(TrackPointsColumns.CONTENT_URI, null, null, null, TrackPointsColumns._ID);
+        Cursor tracksPointsCursor = contentResolver.query(TrackPointsColumns.CONTENT_URI_BY_ID, null, null, null, TrackPointsColumns._ID);
         Assert.assertEquals(20, tracksPointsCursor.getCount());
         Cursor waypointCursor = contentResolver.query(WaypointsColumns.CONTENT_URI, null, null, null, WaypointsColumns._ID);
         Assert.assertEquals(1, waypointCursor.getCount());
@@ -274,7 +274,7 @@ public class CustomContentProviderUtilsTest {
         // Check whether all data of a track has been deleted.
         tracksCursor = contentResolver.query(TracksColumns.CONTENT_URI, null, null, null, TracksColumns._ID);
         Assert.assertEquals(2, tracksCursor.getCount());
-        tracksPointsCursor = contentResolver.query(TrackPointsColumns.CONTENT_URI, null, null, null, TrackPointsColumns._ID);
+        tracksPointsCursor = contentResolver.query(TrackPointsColumns.CONTENT_URI_BY_ID, null, null, null, TrackPointsColumns._ID);
         Assert.assertEquals(20, tracksPointsCursor.getCount());
         waypointCursor = contentResolver.query(WaypointsColumns.CONTENT_URI, null, null, null, WaypointsColumns._ID);
         Assert.assertEquals(0, waypointCursor.getCount());
@@ -766,4 +766,12 @@ public class CustomContentProviderUtilsTest {
         contentProviderUtils.insertTrack(track);
         contentProviderUtils.bulkInsertTrackPoint(track.getLocations().toArray(new Location[0]), track.getLocations().size(), track.getId());
     }
+
+    @Test
+    public void testFormatIdListForUri() {
+        Assert.assertEquals("", ContentProviderUtils.formatIdListForUri(new long[]{}));
+        Assert.assertEquals("12", ContentProviderUtils.formatIdListForUri(new long[]{12}));
+        Assert.assertEquals("42,43,44", ContentProviderUtils.formatIdListForUri(new long[]{42, 43, 44}));
+    }
+
 }

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

@@ -61,8 +61,7 @@ public class ChartFragmentTest {
     @Before
     public void setUp() {
         boolean chartByDistance = false;
-        chartFragment = new ChartFragment(chartByDistance) {
+        chartFragment = (ChartFragment) ChartFragment.newInstance(chartByDistance);
-        };
         chartFragment.setChartView(new ChartView(ApplicationProvider.getApplicationContext(), chartByDistance));
         chartFragment.setTripStatisticsUpdater(TrackStubUtils.INITIAL_TIME);
     }

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

@@ -164,7 +164,10 @@ public class StringUtilsTest {
         GregorianCalendar calendar = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
         calendar.set(year, month - 1, day, hour, minute, second);
         calendar.set(GregorianCalendar.MILLISECOND, millisecond);
-        Assert.assertEquals(calendar.getTimeInMillis(), StringUtils.parseTime(xmlDateTime));
+
+        // This comparision tends to be flaky (difference of 1ms)
+        // Assert.assertEquals(calendar.getTimeInMillis(), StringUtils.parseTime(xmlDateTime));
+        Assert.assertTrue(calendar.getTimeInMillis() + " vs. " + StringUtils.parseTime(xmlDateTime), Math.abs(calendar.getTimeInMillis() - StringUtils.parseTime(xmlDateTime)) <= 1);
     }
 
     /**

src/main/AndroidManifest.xml

@@ -16,8 +16,8 @@ limitations under the License.
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="de.dennisguse.opentracks"
     android:installLocation="auto"
-    android:versionCode="3272"
+    android:versionCode="3287"
-    android:versionName="v3.3.2"> <!-- For FDroid. -->
+    android:versionName="v3.4.0"> <!-- For FDroid. -->
     <!-- Permission to initialize services -->
     <application
         android:name=".Startup"

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

@@ -34,7 +34,6 @@ import android.view.WindowManager;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
 import androidx.core.app.ActivityCompat;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentPagerAdapter;
@@ -46,8 +45,7 @@ import de.dennisguse.opentracks.content.TrackDataHub;
 import de.dennisguse.opentracks.content.data.Track;
 import de.dennisguse.opentracks.content.data.Waypoint;
 import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
-import de.dennisguse.opentracks.fragments.ChartDistanceFragment;
+import de.dennisguse.opentracks.fragments.ChartFragment;
-import de.dennisguse.opentracks.fragments.ChartTimeFragment;
 import de.dennisguse.opentracks.fragments.ChooseActivityTypeDialogFragment;
 import de.dennisguse.opentracks.fragments.ConfirmDeleteDialogFragment;
 import de.dennisguse.opentracks.fragments.StatsFragment;
@@ -206,17 +204,15 @@ public class TrackDetailActivity extends AbstractListActivity implements ChooseA
             @Override
             public Fragment getItem(int position) {
                 switch (position) {
-                    case 0:
-                        return new StatsFragment();
                     case 1:
-                        return new ChartTimeFragment();
+                        return ChartFragment.newInstance(false);
                     case 2:
-                        return new ChartDistanceFragment();
+                        return ChartFragment.newInstance(true);
+                    default: //0
+                        return new StatsFragment();
                 }
-                return null;
             }
 
-            @Nullable
             @Override
             public CharSequence getPageTitle(int position) {
                 switch (position) {

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

@@ -111,8 +111,7 @@ class DataSourceManager {
                 dataSource.registerContentObserver(WaypointsColumns.CONTENT_URI, waypointsTableObserver);
                 break;
             case SAMPLED_IN_TRACK_POINTS_TABLE:
-                dataSource.registerContentObserver(
+                dataSource.registerContentObserver(TrackPointsColumns.CONTENT_URI_BY_ID, trackPointsTableObserver);
-                        TrackPointsColumns.CONTENT_URI, trackPointsTableObserver);
                 break;
             case SAMPLED_OUT_TRACK_POINTS_TABLE:
                 // Do nothing. SAMPLED_OUT_POINT_UPDATES is mapped to POINT_UPDATES.

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

@@ -29,15 +29,20 @@ import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
 public interface TrackPointsColumns extends BaseColumns {
 
     String TABLE_NAME = "trackpoints";
-    Uri CONTENT_URI = Uri.parse(ContentProviderUtils.CONTENT_BASE_URI + "/" + TABLE_NAME);
+    Uri CONTENT_URI_BY_ID = Uri.parse(ContentProviderUtils.CONTENT_BASE_URI + "/" + TABLE_NAME);
+    Uri CONTENT_URI_BY_TRACKID = Uri.parse(ContentProviderUtils.CONTENT_BASE_URI + "/" + TABLE_NAME + "/trackid");
     String CONTENT_TYPE = "vnd.android.cursor.dir/vnd.de.dennisguse.trackpoint";
     String CONTENT_ITEMTYPE = "vnd.android.cursor.item/vnd.de.dennisguse.trackpoint";
     String DEFAULT_SORT_ORDER = "_id";
 
     // Columns
     String TRACKID = "trackid";
+
     String LONGITUDE = "longitude";
     String LATITUDE = "latitude";
+    double PAUSE_LATITUDE = 100.0;
+    double RESUME_LATITUDE = 200.0;
+
     String TIME = "time";
     String ALTITUDE = "elevation";
     String ACCURACY = "accuracy";

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

@@ -22,6 +22,7 @@ import android.content.Context;
 import android.database.Cursor;
 import android.location.Location;
 import android.net.Uri;
+import android.text.TextUtils;
 
 import androidx.annotation.VisibleForTesting;
 
@@ -68,6 +69,7 @@ public class ContentProviderUtils {
      * Maximum number of waypoints that will be loaded at one time.
      */
     public static final int MAX_LOADED_WAYPOINTS_POINTS = 10000;
+    public static final String ID_SEPARATOR = ",";
 
     private final IContentResolver contentResolver;
     private int defaultCursorBatchSize = 2000;
@@ -181,13 +183,13 @@ public class ContentProviderUtils {
      * Deletes all tracks (including waypoints and track points).
      */
     public void deleteAllTracks(Context context) {
-        contentResolver.delete(TrackPointsColumns.CONTENT_URI, null, null);
+        contentResolver.delete(TrackPointsColumns.CONTENT_URI_BY_ID, null, null);
         contentResolver.delete(WaypointsColumns.CONTENT_URI, null, null);
         // Delete tracks last since it triggers a database vaccum call
         contentResolver.delete(TracksColumns.CONTENT_URI, null, null);
 
         File dir = FileUtils.getPhotoDir(context);
-        deleteDirectoryRecurse(context, dir);
+        deleteDirectoryRecurse(dir);
     }
 
     /**
@@ -212,11 +214,11 @@ public class ContentProviderUtils {
     private void deleteTrackPointsAndWaypoints(Context context, long trackId) {
         String where = TrackPointsColumns.TRACKID + "=?";
         String[] selectionArgs = new String[]{Long.toString(trackId)};
-        contentResolver.delete(TrackPointsColumns.CONTENT_URI, where, selectionArgs);
+        contentResolver.delete(TrackPointsColumns.CONTENT_URI_BY_ID, where, selectionArgs);
 
         contentResolver.delete(WaypointsColumns.CONTENT_URI, WaypointsColumns.TRACKID + "=?",
                 new String[]{Long.toString(trackId)});
-        deleteDirectoryRecurse(context, FileUtils.getPhotoDir(context, trackId));
+        deleteDirectoryRecurse(FileUtils.getPhotoDir(context, trackId));
     }
 
     /**
@@ -224,10 +226,10 @@ public class ContentProviderUtils {
      *
      * @param dir the directory
      */
-    private void deleteDirectoryRecurse(Context context, File dir) {
+    private void deleteDirectoryRecurse(File dir) {
-        if (dir.exists() && dir.isDirectory()) {
+        if (dir != null && dir.exists() && dir.isDirectory()) {
             for (File child : dir.listFiles()) {
-                deleteDirectoryRecurse(context, child);
+                deleteDirectoryRecurse(child);
             }
             dir.delete();
         }
@@ -659,7 +661,7 @@ public class ContentProviderUtils {
         for (int i = 0; i < length; i++) {
             values[i] = createContentValues(locations[i], trackId);
         }
-        return contentResolver.bulkInsert(TrackPointsColumns.CONTENT_URI, values);
+        return contentResolver.bulkInsert(TrackPointsColumns.CONTENT_URI_BY_ID, values);
     }
 
     /**
@@ -846,7 +848,7 @@ public class ContentProviderUtils {
      * @return the content provider URI of the inserted track point
      */
     public Uri insertTrackPoint(Location location, long trackId) {
-        return contentResolver.insert(TrackPointsColumns.CONTENT_URI, createContentValues(location, trackId));
+        return contentResolver.insert(TrackPointsColumns.CONTENT_URI_BY_ID, createContentValues(location, trackId));
     }
 
     /**
@@ -926,7 +928,7 @@ public class ContentProviderUtils {
      * @param sortOrder     the sort order
      */
     private Cursor getTrackPointCursor(String[] projection, String selection, String[] selectionArgs, String sortOrder) {
-        return contentResolver.query(TrackPointsColumns.CONTENT_URI, projection, selection, selectionArgs, sortOrder);
+        return contentResolver.query(TrackPointsColumns.CONTENT_URI_BY_ID, projection, selection, selectionArgs, sortOrder);
     }
 
     int getDefaultCursorBatchSize() {
@@ -942,4 +944,26 @@ public class ContentProviderUtils {
     void setDefaultCursorBatchSize(int defaultCursorBatchSize) {
         this.defaultCursorBatchSize = defaultCursorBatchSize;
     }
+
+    /**
+     * Formats an array of IDs as comma separated string value
+     *
+     * @param ids   array with IDs
+     * @return comma separated list of ids
+     */
+    public static String formatIdListForUri(long[] ids) {
+        StringBuilder idsPathSegment = new StringBuilder();
+        for (long id : ids) {
+            if (idsPathSegment.length() > 0) {
+                idsPathSegment.append(ID_SEPARATOR);
+            }
+            idsPathSegment.append(id);
+        }
+        return idsPathSegment.toString();
+    }
+
+    public static String[] parseTrackIdsFromUri(Uri url) {
+        return TextUtils.split(url.getLastPathSegment(), ID_SEPARATOR);
+    }
+
 }

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

@@ -25,7 +25,6 @@ import android.database.Cursor;
 import android.database.SQLException;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteException;
-import android.database.sqlite.SQLiteOpenHelper;
 import android.database.sqlite.SQLiteQueryBuilder;
 import android.net.Uri;
 import android.text.TextUtils;
@@ -45,27 +44,25 @@ import de.dennisguse.opentracks.content.data.WaypointsColumns;
  */
 public abstract class CustomContentProvider extends ContentProvider {
 
-    @VisibleForTesting
-    static final int DATABASE_VERSION = 23;
-
-    @VisibleForTesting
-    static final String DATABASE_NAME = "database.db";
-
     private static final String TAG = CustomContentProvider.class.getSimpleName();
 
+    private static final String SQL_LIST_DELIMITER = ",";
+
     private final UriMatcher uriMatcher;
 
     private SQLiteDatabase db;
 
     public CustomContentProvider() {
         uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
-        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, TrackPointsColumns.TABLE_NAME, UrlType.TRACKPOINTS.ordinal());
+        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, TrackPointsColumns.CONTENT_URI_BY_ID.getPath(), UrlType.TRACKPOINTS.ordinal());
-        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, TrackPointsColumns.TABLE_NAME + "/#", UrlType.TRACKPOINTS_BY_ID.ordinal());
+        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, TrackPointsColumns.CONTENT_URI_BY_ID.getPath() + "/#", UrlType.TRACKPOINTS_BY_ID.ordinal());
-        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, TrackPointsColumns.TABLE_NAME + "/#", UrlType.TRACKPOINTS_BY_TRACKID.ordinal());
+        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, TrackPointsColumns.CONTENT_URI_BY_TRACKID.getPath() + "/*", UrlType.TRACKPOINTS_BY_TRACKID.ordinal());
-        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, TracksColumns.TABLE_NAME, UrlType.TRACKS.ordinal());
+
-        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, TracksColumns.TABLE_NAME + "/#", UrlType.TRACKS_BY_ID.ordinal());
+        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, TracksColumns.CONTENT_URI.getPath(), UrlType.TRACKS.ordinal());
-        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, WaypointsColumns.TABLE_NAME, UrlType.WAYPOINTS.ordinal());
+        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, TracksColumns.CONTENT_URI.getPath() + "/*", UrlType.TRACKS_BY_ID.ordinal());
-        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, WaypointsColumns.TABLE_NAME + "/#", UrlType.WAYPOINTS_BY_ID.ordinal());
+
+        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, WaypointsColumns.CONTENT_URI.getPath(), UrlType.WAYPOINTS.ordinal());
+        uriMatcher.addURI(ContentProviderUtils.AUTHORITY_PACKAGE, WaypointsColumns.CONTENT_URI.getPath() + "/#", UrlType.WAYPOINTS_BY_ID.ordinal());
     }
 
     @Override
@@ -81,7 +78,7 @@ public abstract class CustomContentProvider extends ContentProvider {
      */
     @VisibleForTesting
     boolean onCreate(Context context) {
-        DatabaseHelper databaseHelper = new DatabaseHelper(context);
+        CustomSQLiteOpenHelper databaseHelper = new CustomSQLiteOpenHelper(context);
         try {
             db = databaseHelper.getWritableDatabase();
         } catch (SQLiteException e) {
@@ -200,11 +197,11 @@ public abstract class CustomContentProvider extends ContentProvider {
                 break;
             case TRACKPOINTS_BY_ID:
                 queryBuilder.setTables(TrackPointsColumns.TABLE_NAME);
-                queryBuilder.appendWhere(TrackPointsColumns._ID + "=" + url.getPathSegments().get(1));
+                queryBuilder.appendWhere(TrackPointsColumns._ID + "=" + ContentUris.parseId(url));
                 break;
             case TRACKPOINTS_BY_TRACKID:
                 queryBuilder.setTables(TrackPointsColumns.TABLE_NAME);
-                queryBuilder.appendWhere(TrackPointsColumns.TRACKID + "=" + url.getPathSegments().get(1));
+                queryBuilder.appendWhere(TrackPointsColumns.TRACKID + " IN (" + TextUtils.join(SQL_LIST_DELIMITER, ContentProviderUtils.parseTrackIdsFromUri(url)) + ")");
                 break;
             case TRACKS:
                 queryBuilder.setTables(TracksColumns.TABLE_NAME);
@@ -212,7 +209,7 @@ public abstract class CustomContentProvider extends ContentProvider {
                 break;
             case TRACKS_BY_ID:
                 queryBuilder.setTables(TracksColumns.TABLE_NAME);
-                queryBuilder.appendWhere(TracksColumns._ID + "=" + url.getPathSegments().get(1));
+                queryBuilder.appendWhere(TracksColumns._ID + " IN (" + TextUtils.join(SQL_LIST_DELIMITER, ContentProviderUtils.parseTrackIdsFromUri(url)) + ")");
                 break;
             case WAYPOINTS:
                 queryBuilder.setTables(WaypointsColumns.TABLE_NAME);
@@ -220,7 +217,7 @@ public abstract class CustomContentProvider extends ContentProvider {
                 break;
             case WAYPOINTS_BY_ID:
                 queryBuilder.setTables(WaypointsColumns.TABLE_NAME);
-                queryBuilder.appendWhere(WaypointsColumns._ID + "=" + url.getPathSegments().get(1));
+                queryBuilder.appendWhere(WaypointsColumns._ID + "=" + ContentUris.parseId(url));
                 break;
             default:
                 throw new IllegalArgumentException("Unknown url " + url);
@@ -242,7 +239,7 @@ public abstract class CustomContentProvider extends ContentProvider {
                 break;
             case TRACKPOINTS_BY_ID:
                 table = TrackPointsColumns.TABLE_NAME;
-                whereClause = TrackPointsColumns._ID + "=" + url.getPathSegments().get(1);
+                whereClause = TrackPointsColumns._ID + "=" + ContentUris.parseId(url);
                 if (!TextUtils.isEmpty(where)) {
                     whereClause += " AND (" + where + ")";
                 }
@@ -253,7 +250,7 @@ public abstract class CustomContentProvider extends ContentProvider {
                 break;
             case TRACKS_BY_ID:
                 table = TracksColumns.TABLE_NAME;
-                whereClause = TracksColumns._ID + "=" + url.getPathSegments().get(1);
+                whereClause = TracksColumns._ID + "=" + ContentUris.parseId(url);
                 if (!TextUtils.isEmpty(where)) {
                     whereClause += " AND (" + where + ")";
                 }
@@ -264,7 +261,7 @@ public abstract class CustomContentProvider extends ContentProvider {
                 break;
             case WAYPOINTS_BY_ID:
                 table = WaypointsColumns.TABLE_NAME;
-                whereClause = WaypointsColumns._ID + "=" + url.getPathSegments().get(1);
+                whereClause = WaypointsColumns._ID + "=" + ContentUris.parseId(url);
                 if (!TextUtils.isEmpty(where)) {
                     whereClause += " AND (" + where + ")";
                 }
@@ -289,8 +286,15 @@ public abstract class CustomContentProvider extends ContentProvider {
      *
      * @param url the url
      */
+    @NonNull
     private UrlType getUrlType(Uri url) {
-        return UrlType.values()[uriMatcher.match(url)];
+        UrlType[] urlTypes = UrlType.values();
+        int matchIndex = uriMatcher.match(url);
+        if (0 <= matchIndex && matchIndex < urlTypes.length) {
+            return urlTypes[matchIndex];
+        }
+
+        throw new IllegalArgumentException("Unknown URL " + url);
     }
 
     /**
@@ -328,7 +332,7 @@ public abstract class CustomContentProvider extends ContentProvider {
         }
         long rowId = db.insert(TrackPointsColumns.TABLE_NAME, TrackPointsColumns._ID, values);
         if (rowId >= 0) {
-            return ContentUris.appendId(TrackPointsColumns.CONTENT_URI.buildUpon(), rowId).build();
+            return ContentUris.appendId(TrackPointsColumns.CONTENT_URI_BY_ID.buildUpon(), rowId).build();
         }
         throw new SQLiteException("Failed to insert a track point " + url);
     }
@@ -380,31 +384,4 @@ public abstract class CustomContentProvider extends ContentProvider {
         WAYPOINTS,
         WAYPOINTS_BY_ID
     }
-
-    /**
-     * Database helper for creating and upgrading the database.
-     */
-    @VisibleForTesting
-    static class DatabaseHelper extends SQLiteOpenHelper {
-
-        public DatabaseHelper(Context context) {
-            this(context, DATABASE_NAME);
-        }
-
-        @VisibleForTesting
-        public DatabaseHelper(Context context, String databaseName) {
-            super(context, databaseName, null, DATABASE_VERSION);
-        }
-
-        @Override
-        public void onCreate(SQLiteDatabase db) {
-            db.execSQL(TrackPointsColumns.CREATE_TABLE);
-            db.execSQL(TracksColumns.CREATE_TABLE);
-            db.execSQL(WaypointsColumns.CREATE_TABLE);
-        }
-
-        @Override
-        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
-        }
-    }
 }

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

@@ -0,0 +1,44 @@
+package de.dennisguse.opentracks.content.provider;
+
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+
+import androidx.annotation.VisibleForTesting;
+
+import de.dennisguse.opentracks.content.data.TrackPointsColumns;
+import de.dennisguse.opentracks.content.data.TracksColumns;
+import de.dennisguse.opentracks.content.data.WaypointsColumns;
+
+/**
+ * Database helper for creating and upgrading the database.
+ */
+@VisibleForTesting
+public class CustomSQLiteOpenHelper extends SQLiteOpenHelper {
+
+    @VisibleForTesting
+    static final int DATABASE_VERSION = 23;
+
+    @VisibleForTesting
+    static final String DATABASE_NAME = "database.db";
+
+    public CustomSQLiteOpenHelper(Context context) {
+        this(context, DATABASE_NAME);
+    }
+
+    @VisibleForTesting
+    public CustomSQLiteOpenHelper(Context context, String databaseName) {
+        super(context, databaseName, null, DATABASE_VERSION);
+    }
+
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+        db.execSQL(TrackPointsColumns.CREATE_TABLE);
+        db.execSQL(TracksColumns.CREATE_TABLE);
+        db.execSQL(WaypointsColumns.CREATE_TABLE);
+    }
+
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+    }
+}

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

@@ -1,8 +0,0 @@
-package de.dennisguse.opentracks.fragments;
-
-public class ChartDistanceFragment extends ChartFragment {
-
-    public ChartDistanceFragment() {
-        super(true);
-    }
-}

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

@@ -25,7 +25,6 @@ import android.view.ViewGroup;
 import android.view.ViewGroup.LayoutParams;
 
 import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentActivity;
@@ -56,9 +55,18 @@ import de.dennisguse.opentracks.util.UnitConversions;
  * @author Sandor Dornbush
  * @author Rodrigo Damazio
  */
-public abstract class ChartFragment extends Fragment implements TrackDataListener {
+public class ChartFragment extends Fragment implements TrackDataListener {
 
-    private static final String STATE_CHART_VIEW_BY_DISTANCE_KEY = "chartViewByDistance";
+    private static final String KEY_CHART_VIEW_BY_DISTANCE_KEY = "chartViewByDistance";
+
+    public static Fragment newInstance(boolean chartByDistance) {
+        Bundle bundle = new Bundle();
+        bundle.putBoolean(KEY_CHART_VIEW_BY_DISTANCE_KEY, chartByDistance);
+
+        ChartFragment chartFragment = new ChartFragment();
+        chartFragment.setArguments(bundle);
+        return chartFragment;
+    }
 
     private final List<double[]> pendingPoints = new ArrayList<>();
 
@@ -139,14 +147,13 @@ public abstract class ChartFragment extends Fragment implements TrackDataListene
         }
     };
 
-    public ChartFragment(boolean chartByDistance) {
-        this.chartByDistance = chartByDistance;
-    }
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        chartByDistance = getArguments().getBoolean(KEY_CHART_VIEW_BY_DISTANCE_KEY, chartByDistance);
+
         recordingDistanceInterval = PreferencesUtils.getRecordingDistanceIntervalDefault(getContext());
 
         // Create a chartView here to store data thus won't need to reload all the data on every onStart or onResume.
@@ -190,20 +197,6 @@ public abstract class ChartFragment extends Fragment implements TrackDataListene
         layout.removeView(chartView);
     }
 
-    @Override
-    public void onSaveInstanceState(@NonNull Bundle outState) {
-        super.onSaveInstanceState(outState);
-        outState.putBoolean(STATE_CHART_VIEW_BY_DISTANCE_KEY, chartByDistance);
-    }
-
-    @Override
-    public void onViewStateRestored(@Nullable Bundle savedInstanceState) {
-        super.onViewStateRestored(savedInstanceState);
-        if (savedInstanceState != null) {
-            chartByDistance = savedInstanceState.getBoolean(STATE_CHART_VIEW_BY_DISTANCE_KEY);
-        }
-    }
-
     @Override
     public void onTrackUpdated(Track track) {
         if (isResumed()) {

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

@@ -1,8 +0,0 @@
-package de.dennisguse.opentracks.fragments;
-
-public class ChartTimeFragment extends ChartFragment {
-
-    public ChartTimeFragment() {
-        super(false);
-    }
-}

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

@@ -36,12 +36,9 @@ import de.dennisguse.opentracks.util.DialogUtils;
 public class ConfirmDeleteDialogFragment extends DialogFragment {
 
     private static final String CONFIRM_DELETE_DIALOG_TAG = "confirmDeleteDialog";
-    private ConfirmDeleteCaller caller;
+    private static final String KEY_TRACK_IDS = "trackIds";
-    private final long[] trackIds;
 
-    public ConfirmDeleteDialogFragment(long[] trackIds) {
+    private ConfirmDeleteCaller caller;
-        this.trackIds = trackIds;
-    }
 
     /**
      * Create a new instance.
@@ -49,7 +46,12 @@ public class ConfirmDeleteDialogFragment extends DialogFragment {
      * @param trackIds list of track ids to delete. To delete all, set to size 1 with trackIds[0] == -1L
      */
     public static void showDialog(FragmentManager fragmentManager, long[] trackIds) {
-        new ConfirmDeleteDialogFragment(trackIds).show(fragmentManager, CONFIRM_DELETE_DIALOG_TAG);
+        Bundle bundle = new Bundle();
+        bundle.putLongArray(KEY_TRACK_IDS, trackIds);
+
+        ConfirmDeleteDialogFragment deleteTrackDialogFragment = new ConfirmDeleteDialogFragment();
+        deleteTrackDialogFragment.setArguments(bundle);
+        deleteTrackDialogFragment.show(fragmentManager, CONFIRM_DELETE_DIALOG_TAG);
     }
 
     @Override
@@ -65,6 +67,8 @@ public class ConfirmDeleteDialogFragment extends DialogFragment {
     @Override
     @NonNull
     public Dialog onCreateDialog(Bundle savedInstanceState) {
+        final long[] trackIds = getArguments().getLongArray(KEY_TRACK_IDS);
+
         int titleId;
         int messageId;
         titleId = trackIds.length > 1 ? R.string.generic_delete_selected_confirm_title : R.string.track_delete_one_confirm_title;

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

@@ -38,16 +38,17 @@ import de.dennisguse.opentracks.util.DialogUtils;
 public class DeleteMarkerDialogFragment extends DialogFragment {
 
     private static final String DELETE_MARKER_DIALOG_TAG = "deleteMarkerDialog";
-    private final long[] markerIds;
+    private static final String KEY_MARKER_IDS = "markerIds";
 
     private DeleteMarkerCaller caller;
 
-    public DeleteMarkerDialogFragment(long[] markerIds) {
-        this.markerIds = markerIds;
-    }
-
     public static void showDialog(FragmentManager fragmentManager, long[] markerIds) {
-        new DeleteMarkerDialogFragment(markerIds).show(fragmentManager, DELETE_MARKER_DIALOG_TAG);
+        Bundle bundle = new Bundle();
+        bundle.putLongArray(KEY_MARKER_IDS, markerIds);
+
+        DeleteMarkerDialogFragment deleteMarkerDialogFragment = new DeleteMarkerDialogFragment();
+        deleteMarkerDialogFragment.setArguments(bundle);
+        deleteMarkerDialogFragment.show(fragmentManager, DELETE_MARKER_DIALOG_TAG);
     }
 
     @Override
@@ -63,6 +64,8 @@ public class DeleteMarkerDialogFragment extends DialogFragment {
     @Override
     @NonNull
     public Dialog onCreateDialog(Bundle savedInstanceState) {
+        final long[] markerIds = getArguments().getLongArray(KEY_MARKER_IDS);
+
         final FragmentActivity fragmentActivity = getActivity();
         int titleId;
         int messageId;

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

@@ -40,18 +40,19 @@ import de.dennisguse.opentracks.io.file.TrackFileFormat;
 public class FileTypeDialogFragment extends DialogFragment {
 
     private static final String FILE_TYPE_DIALOG_TAG = "fileType";
-    private final int titleId;
+    private static final String KEY_TITLE_ID = "titleId";
+    private static final String KEY_OPTION_ID = "optionId";
 
     private FileTypeCaller caller;
-    private final int optionId;
-
-    public FileTypeDialogFragment(int titleId, int optionId) {
-        this.titleId = titleId;
-        this.optionId = optionId;
-    }
 
     public static void showDialog(FragmentManager fragmentManager, int titleId, int optionId) {
-        new FileTypeDialogFragment(titleId, optionId).show(fragmentManager, FILE_TYPE_DIALOG_TAG);
+        Bundle bundle = new Bundle();
+        bundle.putInt(KEY_TITLE_ID, titleId);
+        bundle.putInt(KEY_OPTION_ID, optionId);
+
+        FileTypeDialogFragment fileTypeDialogFragment = new FileTypeDialogFragment();
+        fileTypeDialogFragment.setArguments(bundle);
+        fileTypeDialogFragment.show(fragmentManager, FILE_TYPE_DIALOG_TAG);
     }
 
     @Override
@@ -67,6 +68,9 @@ public class FileTypeDialogFragment extends DialogFragment {
     @Override
     @NonNull
     public Dialog onCreateDialog(Bundle savedInstanceState) {
+        int optionId = getArguments().getInt(KEY_OPTION_ID);
+        final int titleId = getArguments().getInt(KEY_TITLE_ID);
+
         final TrackFileFormat[] trackFileFormats = {TrackFileFormat.KMZ_WITH_TRACKDETAIL_AND_SENSORDATA_AND_PICTURES, TrackFileFormat.KMZ_WITH_TRACKDETAIL_AND_SENSORDATA, TrackFileFormat.KML_WITH_TRACKDETAIL_AND_SENSORDATA, TrackFileFormat.GPX};
         String[] choices = new String[trackFileFormats.length];
         for (int i = 0; i < choices.length; i++) {

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

@@ -57,7 +57,9 @@ public class MarkerDetailFragment extends Fragment {
 
     private static final String TAG = MarkerDetailFragment.class.getSimpleName();
     private static final String KEY_MARKER_ID = "markerId";
+
     private static final long HIDE_TEXT_DELAY = 4 * UnitConversions.ONE_SECOND_MS;
+
     private ContentProviderUtils contentProviderUtils;
     private Handler handler;
     private ImageView photoView;

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

@@ -232,7 +232,9 @@ public enum TrackFileFormat {
     /**
      * Returns whether the format supports photos.
      */
-    public boolean includesPhotos() { return false; };
+    public boolean includesPhotos() {
+        return false;
+    }
 
     /**
      * Returns the name of for each format.

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

@@ -32,7 +32,6 @@ import de.dennisguse.opentracks.content.data.Track;
 import de.dennisguse.opentracks.content.data.TracksColumns;
 import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
 import de.dennisguse.opentracks.io.file.TrackFileFormat;
-import de.dennisguse.opentracks.util.PreferencesUtils;
 import de.dennisguse.opentracks.util.SystemUtils;
 
 /**
@@ -51,10 +50,10 @@ public class ExportAsyncTask extends AsyncTask<Void, Integer, Boolean> {
     private ExportActivity exportActivity;
     private WakeLock wakeLock;
 
-    private boolean completed;
+    private boolean completed = false;
 
-    private int processedTrackCount;
+    private int processedTrackCount = 0;
-    private int totalTrackCount;
+    private int totalTrackCount = 0;
 
     /**
      * Creates an AsyncTask.
@@ -69,10 +68,6 @@ public class ExportAsyncTask extends AsyncTask<Void, Integer, Boolean> {
         this.directory = directory;
         context = exportActivity.getApplicationContext();
         contentProviderUtils = new ContentProviderUtils(context);
-
-        completed = false;
-        processedTrackCount = 0;
-        totalTrackCount = 0;
     }
 
     /**
@@ -98,17 +93,12 @@ public class ExportAsyncTask extends AsyncTask<Void, Integer, Boolean> {
     protected Boolean doInBackground(Void... params) {
         try {
             Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
-            boolean isRecording = PreferencesUtils.isRecording(exportActivity);
+
-            boolean isPaused = PreferencesUtils.isRecordingTrackPaused(exportActivity);
-            // Get the wake lock if not recording or paused
-            if (!isRecording || isPaused) {
             wakeLock = SystemUtils.acquireWakeLock(exportActivity, wakeLock);
-            }
+
             return exportAllTracks();
         } finally {
-            if (wakeLock != null && wakeLock.isHeld()) {
+            wakeLock = SystemUtils.releaseWakeLock(wakeLock);
-                wakeLock.release();
-            }
         }
     }
 

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

@@ -39,11 +39,11 @@ import javax.xml.parsers.SAXParserFactory;
 
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.content.data.Track;
+import de.dennisguse.opentracks.content.data.TrackPointsColumns;
 import de.dennisguse.opentracks.content.data.Waypoint;
 import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
 import de.dennisguse.opentracks.content.provider.TrackPointFactory;
 import de.dennisguse.opentracks.content.provider.TrackPointIterator;
-import de.dennisguse.opentracks.services.TrackRecordingService;
 import de.dennisguse.opentracks.stats.TripStatisticsUpdater;
 import de.dennisguse.opentracks.util.FileUtils;
 import de.dennisguse.opentracks.util.LocationUtils;
@@ -274,7 +274,7 @@ abstract class AbstractFileTrackImporter extends DefaultHandler implements Track
 
         //If not the first segment, add a pause separator if there is at least one location in the last segment.
         if (trackData.numberOfSegments > 1 && trackData.lastLocationInCurrentSegment != null) {
-            insertLocation(createLocation(TrackRecordingService.PAUSE_LATITUDE, 0.0, 0.0, trackData.lastLocationInCurrentSegment.getTime()));
+            insertLocation(createLocation(TrackPointsColumns.PAUSE_LATITUDE, 0.0, 0.0, trackData.lastLocationInCurrentSegment.getTime()));
         }
         trackData.lastLocationInCurrentSegment = null;
     }
@@ -344,8 +344,7 @@ abstract class AbstractFileTrackImporter extends DefaultHandler implements Track
 
         if (trackData.numberOfSegments > 1 && trackData.lastLocationInCurrentSegment == null) {
             // If not the first segment, add a resume separator before adding the first location.
-            insertLocation(
+            insertLocation(createLocation(TrackPointsColumns.RESUME_LATITUDE, 0.0, 0.0, location.getTime()));
-                    createLocation(TrackRecordingService.RESUME_LATITUDE, 0.0, 0.0, location.getTime()));
         }
         trackData.lastLocationInCurrentSegment = location;
         return location;

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

@@ -43,6 +43,7 @@ import de.dennisguse.opentracks.TrackDetailActivity;
 import de.dennisguse.opentracks.TrackListActivity;
 import de.dennisguse.opentracks.content.data.Track;
 import de.dennisguse.opentracks.content.data.TrackPoint;
+import de.dennisguse.opentracks.content.data.TrackPointsColumns;
 import de.dennisguse.opentracks.content.data.Waypoint;
 import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
 import de.dennisguse.opentracks.content.provider.CustomContentProvider;
@@ -70,12 +71,6 @@ import de.dennisguse.opentracks.util.UnitConversions;
  */
 public class TrackRecordingService extends Service {
 
-    // TODO Move to a different place.
-    @Deprecated
-    public static final double PAUSE_LATITUDE = 100.0;
-    @Deprecated
-    public static final double RESUME_LATITUDE = 200.0;
-
     // Anything faster than that (in meters per second) will be considered moving.
     private static final String TAG = TrackRecordingService.class.getSimpleName();
 
@@ -386,7 +381,7 @@ public class TrackRecordingService extends Service {
         if (track != null) {
             Location resume = new Location(LocationManager.GPS_PROVIDER);
             resume.setLongitude(0);
-            resume.setLatitude(RESUME_LATITUDE);
+            resume.setLatitude(TrackPointsColumns.RESUME_LATITUDE);
             resume.setTime(System.currentTimeMillis());
             insertLocation(track, resume, null);
         }
@@ -473,7 +468,7 @@ public class TrackRecordingService extends Service {
 
             Location pause = new Location(LocationManager.GPS_PROVIDER);
             pause.setLongitude(0);
-            pause.setLatitude(PAUSE_LATITUDE);
+            pause.setLatitude(TrackPointsColumns.PAUSE_LATITUDE);
             pause.setTime(System.currentTimeMillis());
             insertLocation(track, pause, null);
         }
@@ -610,7 +605,7 @@ public class TrackRecordingService extends Service {
 
             Location pause = new Location(LocationManager.GPS_PROVIDER);
             pause.setLongitude(0);
-            pause.setLatitude(PAUSE_LATITUDE);
+            pause.setLatitude(TrackPointsColumns.PAUSE_LATITUDE);
             pause.setTime(lastLocation.getTime());
             insertLocation(track, pause, null);
 
@@ -713,17 +708,7 @@ public class TrackRecordingService extends Service {
     }
 
     private void showNotification(boolean isGpsStarted) {
-        // Dijkstra If
+        if (isRecording()) {
-        if (isRecording() && isPaused()) {
-            stopForeground(true);
-            notificationManager.cancelNotification();
-
-        }
-        if (!isRecording() && !isGpsStarted) {
-            stopForeground(true);
-            notificationManager.cancelNotification();
-        }
-        if (isRecording() && !isPaused()) {
             Intent intent = IntentUtils.newIntent(this, TrackDetailActivity.class)
                     .putExtra(TrackDetailActivity.EXTRA_TRACK_ID, recordingTrackId);
             PendingIntent pendingIntent = TaskStackBuilder.create(this)
@@ -745,5 +730,9 @@ public class TrackRecordingService extends Service {
             notificationManager.updateContent(getString(R.string.gps_starting));
             startForeground(TrackRecordingServiceNotificationManager.NOTIFICATION_ID, notificationManager.getNotification());
         }
+        if (!isRecording() && !isGpsStarted) {
+            stopForeground(true);
+            notificationManager.cancelNotification();
+        }
     }
 }

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

@@ -21,11 +21,11 @@ import android.util.Log;
 
 import androidx.annotation.VisibleForTesting;
 
+import de.dennisguse.opentracks.content.data.TrackPointsColumns;
 import de.dennisguse.opentracks.content.provider.TrackPointIterator;
 import de.dennisguse.opentracks.util.LocationUtils;
 
 import static de.dennisguse.opentracks.services.TrackRecordingService.MAX_NO_MOVEMENT_SPEED;
-import static de.dennisguse.opentracks.services.TrackRecordingService.PAUSE_LATITUDE;
 
 /**
  * Updater for {@link TripStatistics}.
@@ -123,7 +123,7 @@ public class TripStatisticsUpdater {
         updateTime(location.getTime());
         if (!LocationUtils.isValidLocation(location)) {
             // Either pause or resume marker
-            if (location.getLatitude() == PAUSE_LATITUDE) {
+            if (location.getLatitude() == TrackPointsColumns.PAUSE_LATITUDE) {
                 if (lastLocation != null && lastMovingLocation != null && lastLocation != lastMovingLocation) {
                     currentSegment.addTotalDistance(lastMovingLocation.distanceTo(lastLocation));
                 }

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

@@ -1,7 +1,6 @@
 package de.dennisguse.opentracks.util;
 
 import android.content.ClipData;
-import android.content.ContentUris;
 import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
@@ -10,6 +9,7 @@ import java.util.ArrayList;
 
 import de.dennisguse.opentracks.content.data.TrackPointsColumns;
 import de.dennisguse.opentracks.content.data.TracksColumns;
+import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
 
 /**
  * Create an {@link Intent} to request showing a Dashboard.
@@ -24,11 +24,12 @@ public class IntentDashboardUtils {
     private IntentDashboardUtils() {
     }
 
-    public static boolean startDashboard(Context context, long trackId) {
+    public static boolean startDashboard(Context context, long[] trackIds) {
         ArrayList<Uri> uris = new ArrayList<>();
+        String trackIdList = ContentProviderUtils.formatIdListForUri(trackIds);
 
-        uris.add(0, ContentUris.withAppendedId(TracksColumns.CONTENT_URI, trackId));
+        uris.add(0, Uri.withAppendedPath(TracksColumns.CONTENT_URI, trackIdList));
-        uris.add(1, ContentUris.withAppendedId(TrackPointsColumns.CONTENT_URI, trackId));
+        uris.add(1, Uri.withAppendedPath(TrackPointsColumns.CONTENT_URI_BY_TRACKID, trackIdList));
 
         Intent intent = new Intent(ACTION_DASHBOARD);
         intent.putParcelableArrayListExtra(ACTION_DASHBOARD_PAYLOAD, uris);
@@ -47,4 +48,5 @@ public class IntentDashboardUtils {
 
         return false;
     }
+
 }

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

@@ -140,7 +140,7 @@ public class IntentUtils {
             return;
         }
 
-        if (IntentDashboardUtils.startDashboard(context, trackIds[0])) {
+        if (IntentDashboardUtils.startDashboard(context, trackIds)) {
             return;
         }
 

src/main/res/layout/about.xml

@@ -10,8 +10,8 @@
         android:id="@+id/imageView"
         android:layout_width="match_parent"
         android:layout_height="239dp"
-        android:scaleType="fitCenter"
         android:contentDescription="@string/app_name"
+        android:scaleType="fitCenter"
         android:src="@drawable/ic_logo_color_24dp" />
 
     <TextView
@@ -80,6 +80,7 @@
     <TextView
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:autoLink="web"
         android:gravity="center"
         android:text="@string/third_party_libraries" />
 

src/main/res/layout/help.xml

@@ -44,20 +44,6 @@
                 android:linksClickable="true"
                 android:text="@string/help_track_map_content" />
 
-            <TextView
-                style="@style/TextMedium"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginTop="20dp"
-                android:text="@string/help_data_statistics_customized_title"
-                android:textStyle="bold" />
-
-            <TextView
-                style="@style/TextMedium"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/help_data_statistics_customized_content" />
-
             <TextView
                 style="@style/TextMedium"
                 android:layout_width="match_parent"
@@ -72,34 +58,6 @@
                 android:layout_height="wrap_content"
                 android:text="@string/help_recording_content" />
 
-            <TextView
-                style="@style/TextMedium"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginTop="20dp"
-                android:text="@string/help_gps_imprecise_title"
-                android:textStyle="bold" />
-
-            <TextView
-                style="@style/TextMedium"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/help_gps_imprecise_content" />
-
-            <TextView
-                style="@style/TextMedium"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginTop="20dp"
-                android:text="@string/help_heart_rate_sensors_title"
-                android:textStyle="bold" />
-
-            <TextView
-                style="@style/TextMedium"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/help_heart_rate_sensors_content" />
-
             <TextView
                 style="@style/TextMedium"
                 android:layout_width="match_parent"
@@ -128,20 +86,6 @@
                 android:layout_height="wrap_content"
                 android:text="@string/help_track_export_content" />
 
-            <TextView
-                style="@style/TextMedium"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginTop="20dp"
-                android:text="@string/help_data_upload_title"
-                android:textStyle="bold" />
-
-            <TextView
-                style="@style/TextMedium"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/generic_no" />
-
             <TextView
                 style="@style/TextMedium"
                 android:layout_width="match_parent"
@@ -155,20 +99,6 @@
                 android:layout_height="wrap_content"
                 android:text="@string/generic_no" />
 
-            <TextView
-                style="@style/TextMedium"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginTop="20dp"
-                android:text="@string/help_data_online_title"
-                android:textStyle="bold" />
-
-            <TextView
-                style="@style/TextMedium"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/generic_no" />
-
             <TextView
                 style="@style/TextMedium"
                 android:layout_width="match_parent"
@@ -182,6 +112,36 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:text="@string/help_data_storage_content" />
+
+            <TextView
+                style="@style/TextMedium"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="20dp"
+                android:text="@string/help_gps_troubleshooting_title"
+                android:textStyle="bold" />
+
+            <TextView
+                style="@style/TextMedium"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:linksClickable="true"
+                android:text="@string/help_gps_troubleshooting_content" />
+
+            <TextView
+                style="@style/TextMedium"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="20dp"
+                android:text="@string/help_support_title"
+                android:textStyle="bold" />
+
+            <TextView
+                style="@style/TextMedium"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:linksClickable="true"
+                android:text="@string/help_support_content" />
         </LinearLayout>
     </ScrollView>
 

src/main/res/menu/list_context_menu.xml

@@ -15,16 +15,16 @@ limitations under the License.
 -->
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
-    <item
-        android:id="@+id/list_context_menu_share"
-        android:icon="@drawable/ic_share_24dp"
-        android:title="@string/menu_share"
-        app:showAsAction="ifRoom" />
     <item
         android:id="@+id/list_context_menu_show_on_map"
         android:icon="@drawable/ic_map_24dp"
         android:title="@string/menu_show_on_map"
         app:showAsAction="ifRoom" />
+    <item
+        android:id="@+id/list_context_menu_share"
+        android:icon="@drawable/ic_share_24dp"
+        android:title="@string/menu_share"
+        app:showAsAction="ifRoom" />
     <item
         android:id="@+id/list_context_menu_edit"
         android:icon="@drawable/ic_edit_24dp"

src/main/res/values/strings.xml

@@ -24,43 +24,77 @@ limitations under the License.
     <!-- Help -->
     <string name="help_feature_title">OpenTracks has the following features:</string>
     <string name="help_feature_content">
-        * Create markers (incl. pictures)\n
+        * create GPS tracks\n
-        * Heart rate sensor (Bluetooth LE)\n
+        * use a heart rate sensor (Bluetooth LE only)\n
-        * Voice announcements by time or distance\n
+        * voice announcements (by time or distance)\n
-        * While recording, show on lock screen\n
+        * create markers (incl. pictures)\n
-        * Share tracks
+        * works completely offline\n
+        * show tracks on a map (see below)
     </string>
-    <string name="help_data_statistics_customized_title">Can the statistics view be customized?</string>
+
-    <string name="help_data_statistics_customized_content">Yes, it can be customized in the Settings.</string>
-    <string name="help_recording_title">How does OpenTracks record data?</string>
-    <string name="help_recording_content">OpenTracks uses the GPS sensor of the device to record the location continuously.</string>
-    <string name="help_gps_imprecise_title">Statistics (e.g., speed) reported by OpenTracks are imprecise?</string>
-    <string name="help_gps_imprecise_content">OpenTracks directly uses the data provided by the GPS of the mobile device. If the GPS device reports inaccurate locations, OpenTracks cannot do anything about it.</string>
-    <string name="help_heart_rate_sensors_title">Which heart rate sensors does OpenTracks support?</string>
-    <string name="help_heart_rate_sensors_content">OpenTracks should work with any Bluetooth LE heart sensor that support streaming the data in real-time. Smartwatches that store the heart rate data are not supported.</string>
     <string name="help_track_map_title">How to show a track on a map?</string>
     <string name="help_track_map_content">
-This requires a 3rd party application to be installed that can consume KMZ-encoded geo data.
+        Use the small map icon.\n
-This works well with <a href="http://osmand.net/">OsmAnd~</a> and <a href="https://maps.me/">Maps.ME</a>.
+        a)
-In fact, an App needs to support <i>ACTION_VIEW</i> with MIME <i>application/vnd.google-earth.kmz</i>.
+        (live updates) Install <a href="https://github.com/OpenTracksApp/OSMDashboard">OSMDashboard</a>.
-At the moment, the recorded locations as well as the timestamps are send to an App while pictures and sensor data are not shared.</string>
+        It provides online or offline maps via <a href="https://www.openstreetmap.org">OpenStreetmap</a>.\n
+        Actually, OSMDashboard is a separate app that only can access (temporarily) access the data of track(s) that are going to be shown.
+
+        \n
+        b)
+        Via a "normal" map application (e.g., <a href="http://osmand.net/">OsmAnd</a> and <a href="https://maps.me/">MAPS.ME</a>).
+        Those app need to support the KMZ file format (only locations and timestamps).
+        In fact, an app needs to support <i>ACTION_VIEW</i> with MIME <i>application/vnd.google-earth.kmz</i>.
+    </string>
+
     <string name="help_storage_pictures_title">How does OpenTracks store pictures that were taken as markers?</string>
-    <string name="help_storage_pictures_content">These are stored directly on the file system.</string>
+    <string name="help_storage_pictures_content">These are stored in the app internal storage (i.e., only accessible within OpenTracks).</string>
+
     <string name="help_track_export_title">How can I export/share recorded tracks?</string>
     <string name="help_track_export_content">
         Tracks can be exported from the Settings as KMZ, KML, or GPX.
-        KMZ contains all data incl. images, while KML contains only the sensor data, and GPX only the location.
+        KMZ/KML all data; GPX only locations.
-        Tracks shared via the <i>share icon</i> are shared as KMZ and any App can be used to send the data.
+        Tracks shared via the <i>share icon</i> are shared as KMZ.
     </string>
-    <string name="help_data_upload_title">Can OpenTracks upload the data automatically?</string>
+
     <string name="help_data_google_play_services_title">Does OpenTracks require/use Google Play Service?</string>
-    <string name="help_data_online_title">Does OpenTracks use online services?</string>
+
+    <string name="help_recording_title">How does OpenTracks record data?</string>
+    <string name="help_recording_content">
+        OpenTracks uses the GPS sensor of the device to record the location continuously.
+        If the GPS device reports inaccurate data (e.g., location, speed, elevation), OpenTracks cannot do anything about it.
+    </string>
+
     <string name="help_data_storage_title">How does OpenTracks store sensor data?</string>
     <string name="help_data_storage_content">
-        OpenTracks stores sensor data per recorded location.
+        Sensor data is stored per recorded location.
-        In terms of a heart rate sensor this means that only <i>one</i> heart rate measurement is stored per location.
+        In terms of a heart rate sensor, this means that only <i>one</i> heart rate measurement is stored per location.
         If you are standing still or are indoors, no sensor data will be recorded (but it will be shown).
     </string>
+
+    <string name="help_gps_troubleshooting_title">OpenTracks is not recording locations?</string>
+    <string name="help_gps_troubleshooting_content">
+        What you can do:\n
+        a) check if GPS is enabled,\n
+        b) improve GPS reception (e.g., go outdoors),\n
+        c) check if with <a href="https://f-droid.org/en/packages/com.android.gpstest.osmdroid/">GPSTest</a> app, and\n
+        d) disable power saving.\n
+        \n
+        If everything does not help please report a bug.
+    </string>
+
+    <string name="help_support_title">How can I support OpenTracks?</string>
+    <string name="help_support_content">
+        You can:\n
+        a) spread the word about OpenTracks,\n
+        b) <a href="https://github.com/OpenTracksApp/OpenTracks/issues">propose features</a>,\n
+        c) <a href="https://github.com/OpenTracksApp/OpenTracks/issues">report bugs</a>,\n
+        d) help in software development,\n
+        e) buy in <a href="https://play.google.com/store/apps/details?id=de.dennisguse.opentracks.playstore">Google Play Store</a>,\n
+        f) donate, and\n
+        g) do whatever you think helps OpenTracks.
+    </string>
+
     <!-- Activity Type -->
     <string name="activity_type_airplane">airplane</string>
     <string name="activity_type_atv">ATV</string>