Release: v4.4.0

Currently translated at 97.6% (493 of 505 strings)

Translation: OpenTracks/opentracks.src-main-res-values-strings-xml--main
Translate-URL: https://hosted.weblate.org/projects/opentracks/opentracks-src-main-res-values-strings-xml-main/nb_NO/

build.gradle

@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.1.0-beta02'
+        classpath 'com.android.tools.build:gradle:8.1.0-beta03'
     }
 }
 
@@ -64,8 +64,8 @@ android {
 
     defaultConfig {
         applicationId "de.dennisguse.opentracks"
-        versionCode 5211
-        versionName "v4.3.5"
+        versionCode 5222
+        versionName "v4.4.0"
 
         buildConfigField "String", "VERSION_NAME_FULL", "\"${getVersionName()}\""
 

fastlane/metadata/android/en-US/changelogs/5222.txt

@@ -0,0 +1,4 @@
+v4.4.0: OpenTracks
+
+Changes:
+- Export all tracks as one file

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

@@ -13,6 +13,8 @@ import static org.hamcrest.Matchers.allOf;
 import static org.hamcrest.Matchers.anything;
 import static de.dennisguse.opentracks.util.EspressoUtils.waitFor;
 
+import android.Manifest;
+
 import androidx.test.ext.junit.rules.ActivityScenarioRule;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import androidx.test.filters.LargeTest;
@@ -30,7 +32,11 @@ 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 mGrantPermissionRuleLocation = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
+    @Rule
+    public GrantPermissionRule mGrantPermissionRuleBluetooth = GrantPermissionRule.grant(Manifest.permission.BLUETOOTH_CONNECT);
+    @Rule
+    public GrantPermissionRule mGrantPermissionRuleNotifications = GrantPermissionRule.grant(Manifest.permission.POST_NOTIFICATIONS);
 
     @Test
     public void espressoDeleteTrackTest() {

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

@@ -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 +40,11 @@ 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 mGrantPermissionRuleLocation = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
+    @Rule
+    public GrantPermissionRule mGrantPermissionRuleBluetooth = GrantPermissionRule.grant(android.Manifest.permission.BLUETOOTH_CONNECT);
+    @Rule
+    public GrantPermissionRule mGrantPermissionRuleNotifications = GrantPermissionRule.grant(Manifest.permission.POST_NOTIFICATIONS);
 
     @LargeTest
     @Test

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

@@ -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;
@@ -31,7 +33,11 @@ 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 mGrantPermissionRuleLocation = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
+    @Rule
+    public GrantPermissionRule mGrantPermissionRuleBluetooth = GrantPermissionRule.grant(android.Manifest.permission.BLUETOOTH_CONNECT);
+    @Rule
+    public GrantPermissionRule mGrantPermissionRuleNotifications = GrantPermissionRule.grant(Manifest.permission.POST_NOTIFICATIONS);
 
     @LargeTest
     @Test

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

@@ -208,7 +208,7 @@ public class ExportImportTest {
 
         // 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
@@ -290,7 +290,7 @@ public class ExportImportTest {
         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);
@@ -314,7 +314,7 @@ public class ExportImportTest {
 
         // 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
@@ -432,7 +432,7 @@ public class ExportImportTest {
 
         // 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);
@@ -457,7 +457,7 @@ public class ExportImportTest {
 
         // when
         // 1. export
-        trackExporter.writeTrack(track, context.getContentResolver().openOutputStream(tmpFileUri));
+        trackExporter.writeTrack(List.of(track), context.getContentResolver().openOutputStream(tmpFileUri));
         contentProviderUtils.deleteTrack(context, trackId);
 
         // then

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

@@ -232,7 +232,7 @@ public class GPXTrackImporterTest {
         Track importedTrack = contentProviderUtils.getTrack(importTrackId);
 
         TrackExporter trackExporter = TrackFileFormat.GPX.createTrackExporter(context, contentProviderUtils);
-        trackExporter.writeTrack(importedTrack, outputStream);
+        trackExporter.writeTrack(List.of(importedTrack), outputStream);
 
         // then
         String expected = new BufferedReader(

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

@@ -79,7 +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
@@ -94,7 +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
@@ -109,7 +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
@@ -124,7 +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
@@ -139,7 +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
@@ -154,7 +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
@@ -174,7 +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
@@ -190,7 +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
@@ -205,7 +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);
     }
 
 

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

@@ -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);
     }
 

src/main/AndroidManifest.xml

@@ -89,6 +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"
@@ -348,6 +349,7 @@ 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" />

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

@@ -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;
@@ -246,7 +245,7 @@ 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);
@@ -382,6 +381,12 @@ 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);

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

@@ -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;
@@ -137,7 +136,7 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
         viewBinding.trackRecordingFabAction.setBackgroundTintList(ContextCompat.getColorStateList(this, R.color.opentracks_secondary_color));
         viewBinding.trackRecordingFabAction.setBackgroundColor(ContextCompat.getColor(this, R.color.opentracks_secondary_color));
         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);

src/main/java/de/dennisguse/opentracks/data/ShareContentProvider.java

@@ -213,7 +213,7 @@ public class ShareContentProvider extends CustomContentProvider {
         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);
             }

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

@@ -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);
         }
     }

src/main/java/de/dennisguse/opentracks/data/models/BatteryLevel.java

@@ -0,0 +1,18 @@
+package de.dennisguse.opentracks.data.models;
+
+public class BatteryLevel {
+
+    public static BatteryLevel of(int percentage) {
+        return new BatteryLevel(percentage);
+    }
+
+    private final int percentage;
+
+    private BatteryLevel(int percentage) {
+        this.percentage = percentage;
+    }
+
+    public int getPercentage() {
+        return percentage;
+    }
+}

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

@@ -29,6 +29,10 @@ public class TrackFilenameGenerator {
                 .collect(Collectors.joining(", "));
     }
 
+    public static String format(@NonNull String name, @NonNull TrackFileFormat trackFileFormat) {
+        return FileUtils.sanitizeFileName(name + "." + trackFileFormat.getExtension());
+    }
+
     private final String template;
 
     public TrackFilenameGenerator(@NonNull String template) {
@@ -44,7 +48,7 @@ public class TrackFilenameGenerator {
         values.put(STARTTIME_TIME_KEY, track.getStartTime().toLocalTime().toString());
         values.put(STARTTIME_DATE_KEY, track.getStartTime().toLocalDate().toString());
 
-        return FileUtils.sanitizeFileName(format(template, values)) + "." + trackFileFormat.getExtension();
+        return format(format(template, values), trackFileFormat);
     }
 
     private static String format(String template, Map<String, String> values) {
@@ -77,10 +81,6 @@ public class TrackFilenameGenerator {
         return String.format(templateCompiled, valueList.toArray());
     }
 
-    public String getTemplate() {
-        return template;
-    }
-
     public boolean isValid() {
         try {
             getExample();

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

@@ -23,8 +23,6 @@ import androidx.annotation.NonNull;
 import java.io.OutputStream;
 import java.io.PrintWriter;
 import java.text.NumberFormat;
-import java.util.Arrays;
-import java.util.Collections;
 import java.util.List;
 import java.util.Locale;
 import java.util.function.Function;
@@ -87,15 +85,23 @@ public class CSVTrackExporter implements TrackExporter {
     }
 
     @Override
-    public boolean writeTrack(Track track, @NonNull OutputStream outputStream) {
-        return writeTrack(new Track[]{track}, outputStream);
-    }
+    public boolean writeTrack(@NonNull List<Track> tracks, @NonNull OutputStream outputStream) {
+        List<Column> columns = List.of(
+                new Column("time", null),
+                new Column("trackpoint_type", t -> quote(t.getType().name())),
+                new Column("latitude", t -> t.hasLocation() ? COORDINATE_FORMAT.format(t.getLatitude()) : ""),
+                new Column("longitude", t -> t.hasLocation() ? COORDINATE_FORMAT.format(t.getLongitude()) : ""),
+                new Column("altitude", t -> t.hasAltitude() ? COORDINATE_FORMAT.format(t.getAltitude().toM()) : ""),
+                new Column("accuracy_horizontal", t -> t.hasHorizontalAccuracy() ? DISTANCE_FORMAT.format(t.getHorizontalAccuracy().toM()) : ""),
+                new Column("accuracy_vertical", t -> t.hasVerticalAccuracy() ? DISTANCE_FORMAT.format(t.getVerticalAccuracy().toM()) : ""),
 
-    @Override
-    public boolean writeTrack(Track[] tracks, @NonNull OutputStream outputStream) {
-        List<Column> columns = Collections.unmodifiableList(Arrays.asList(new Column("time", null), new Column("trackpoint_type", t -> quote(t.getType().name())), new Column("latitude", t -> t.hasLocation() ? COORDINATE_FORMAT.format(t.getLatitude()) : ""), new Column("longitude", t -> t.hasLocation() ? COORDINATE_FORMAT.format(t.getLongitude()) : ""), new Column("altitude", t -> t.hasAltitude() ? COORDINATE_FORMAT.format(t.getAltitude().toM()) : ""), new Column("accuracy_horizontal", t -> t.hasHorizontalAccuracy() ? DISTANCE_FORMAT.format(t.getHorizontalAccuracy().toM()) : ""), new Column("accuracy_vertical", t -> t.hasVerticalAccuracy() ? DISTANCE_FORMAT.format(t.getVerticalAccuracy().toM()) : ""),
-
-                new Column("speed", t -> t.hasSpeed() ? SPEED_FORMAT.format(t.getSpeed().toKMH()) : ""), new Column("altitude_gain", t -> t.hasAltitudeGain() ? DISTANCE_FORMAT.format(t.getAltitudeGain()) : ""), new Column("altitude_loss", t -> t.hasAltitudeLoss() ? DISTANCE_FORMAT.format(t.getAltitudeLoss()) : ""), new Column("sensor_distance", t -> t.hasSensorDistance() ? DISTANCE_FORMAT.format(t.getSensorDistance().toM()) : ""), new Column("heartrate", t -> t.hasHeartRate() ? HEARTRATE_FORMAT.format(t.getHeartRate().getBPM()) : ""), new Column("cadence", t -> t.hasCadence() ? CADENCE_FORMAT.format(t.getCadence().getRPM()) : ""), new Column("power", t -> t.hasPower() ? ALTITUDE_FORMAT.format(t.getPower().getW()) : "")));
+                new Column("speed", t -> t.hasSpeed() ? SPEED_FORMAT.format(t.getSpeed().toKMH()) : ""),
+                new Column("altitude_gain", t -> t.hasAltitudeGain() ? DISTANCE_FORMAT.format(t.getAltitudeGain()) : ""),
+                new Column("altitude_loss", t -> t.hasAltitudeLoss() ? DISTANCE_FORMAT.format(t.getAltitudeLoss()) : ""),
+                new Column("sensor_distance", t -> t.hasSensorDistance() ? DISTANCE_FORMAT.format(t.getSensorDistance().toM()) : ""),
+                new Column("heartrate", t -> t.hasHeartRate() ? HEARTRATE_FORMAT.format(t.getHeartRate().getBPM()) : ""),
+                new Column("cadence", t -> t.hasCadence() ? CADENCE_FORMAT.format(t.getCadence().getRPM()) : ""),
+                new Column("power", t -> t.hasPower() ? ALTITUDE_FORMAT.format(t.getPower().getW()) : ""));
 
         try {
             prepare(outputStream);

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

@@ -16,7 +16,6 @@
 
 package de.dennisguse.opentracks.io.file.exporter;
 
-import android.database.Cursor;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
@@ -24,6 +23,7 @@ import android.view.View;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.core.content.ContextCompat;
 import androidx.documentfile.provider.DocumentFile;
 import androidx.fragment.app.FragmentActivity;
@@ -31,14 +31,15 @@ import androidx.fragment.app.FragmentActivity;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.LinkedBlockingQueue;
+import java.util.stream.Collectors;
 
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.data.ContentProviderUtils;
 import de.dennisguse.opentracks.data.models.Track;
-import de.dennisguse.opentracks.data.tables.TracksColumns;
 import de.dennisguse.opentracks.databinding.ExportActivityBinding;
 import de.dennisguse.opentracks.io.file.ErrorListDialog;
 import de.dennisguse.opentracks.io.file.TrackFileFormat;
+import de.dennisguse.opentracks.io.file.TrackFilenameGenerator;
 import de.dennisguse.opentracks.settings.PreferencesUtils;
 import de.dennisguse.opentracks.util.ExportUtils;
 import de.dennisguse.opentracks.util.FileUtils;
@@ -47,12 +48,20 @@ import de.dennisguse.opentracks.util.FileUtils;
  * An activity for saving tracks to the external storage.
  *
  * @author Rodrigo Damazio
+ * TODO: This class needs some refactoring.
+ * * It pushes each export job (usually one Track) for export; although export could be run in parallel.
+ *   Also this requires that the ExportActivity stays in foreground, so the user has to activily wait.
+ *   It would be better to let the ExportService handle this and let it report progress / conflicts to ExportActivity
+ * * File name conflicts are checked in this class instead of the ExportService.
+ *    So, for this check actually a different file name might be used than in the ExportService.
+ * * Saved state as an object instead of individual values.
  */
 public class ExportActivity extends FragmentActivity implements ExportServiceResultReceiver.Receiver {
 
     private static final String TAG = ExportActivity.class.getSimpleName();
 
     public static final String EXTRA_DIRECTORY_URI_KEY = "directory_uri";
+    public static final String EXTRA_ONE_FILE_KEY = "one_file";
     public static final String EXTRA_TRACKFILEFORMAT_KEY = "trackfileformat";
 
     private static final String BUNDLE_AUTO_CONFLICT = "auto_conflict";
@@ -64,9 +73,13 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
     private static final String BUNDLE_DIRECTORY_FILES = "track_directory_files";
     private static final String BUNDLE_TRACK_ERRORS = "track_errors";
 
-    private static final int CONFLICT_NONE = 0;
-    private static final int CONFLICT_OVERWRITE = 1;
-    private static final int CONFLICT_SKIP = 2;
+    private static final String BUNDLE_EXPORT_TASKS = "export_tasks";
+
+    private enum ConflictResolutionStrategy {
+        CONFLICT_NONE,
+        CONFLICT_OVERWRITE,
+        CONFLICT_SKIP;
+    }
 
     private TrackFileFormat trackFileFormat;
     private Uri directoryUri;
@@ -87,12 +100,12 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
 
     private ArrayList<String> trackErrors = new ArrayList<>();
 
-    private int autoConflict;
+    private ConflictResolutionStrategy autoConflict;
 
     private ContentProviderUtils contentProviderUtils;
 
     // List of tracks to be exported.
-    private final ArrayList<Track> tracks = new ArrayList<>();
+    private ArrayList<ExportTask> exportTasks;
 
     private final LinkedBlockingQueue<PendingConflict> conflictsQueue = new LinkedBlockingQueue<>();
     private final Handler conflictsHandler = new Handler();
@@ -100,34 +113,36 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
     private final Runnable conflictsRunnable = new Runnable() {
         @Override
         public void run() {
-            if (conflictsQueue.size() > 0) {
-                PendingConflict conflict = conflictsQueue.peek();
-                if (conflict.resolve()) {
-                    conflictsQueue.remove(conflict);
-                    if (!conflictsQueue.isEmpty()) {
-                        conflictsHandler.post(conflictsRunnable);
-                    }
-                    return;
-                }
-
-                viewBinding.exportProgressLeftButton.setOnClickListener((view) -> {
-                    setConflictVisibility(View.GONE);
-                    conflict.skip();
-                    conflictsQueue.remove(conflict);
-                    if (!conflictsQueue.isEmpty()) {
-                        conflictsHandler.post(conflictsRunnable);
-                    }
-                });
-
-                viewBinding.exportProgressRightButton.setOnClickListener((view) -> {
-                    setConflictVisibility(View.GONE);
-                    conflict.overwrite();
-                    conflictsQueue.remove(conflict);
-                    if (!conflictsQueue.isEmpty()) {
-                        conflictsHandler.post(conflictsRunnable);
-                    }
-                });
+            if (conflictsQueue.isEmpty()) {
+                return;
             }
+
+            PendingConflict conflict = conflictsQueue.peek();
+            if (conflict.resolve()) {
+                conflictsQueue.remove(conflict);
+                if (!conflictsQueue.isEmpty()) {
+                    conflictsHandler.post(conflictsRunnable);
+                }
+                return;
+            }
+
+            viewBinding.exportProgressLeftButton.setOnClickListener((view) -> {
+                setConflictVisibility(View.GONE);
+                conflict.skip();
+                conflictsQueue.remove(conflict);
+                if (!conflictsQueue.isEmpty()) {
+                    conflictsHandler.post(conflictsRunnable);
+                }
+            });
+
+            viewBinding.exportProgressRightButton.setOnClickListener((view) -> {
+                setConflictVisibility(View.GONE);
+                conflict.overwrite();
+                conflictsQueue.remove(conflict);
+                if (!conflictsQueue.isEmpty()) {
+                    conflictsHandler.post(conflictsRunnable);
+                }
+            });
         }
     };
 
@@ -139,6 +154,7 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
 
         directoryUri = getIntent().getParcelableExtra(EXTRA_DIRECTORY_URI_KEY);
         trackFileFormat = (TrackFileFormat) getIntent().getSerializableExtra(EXTRA_TRACKFILEFORMAT_KEY);
+        boolean allInOneFile = getIntent().getBooleanExtra(EXTRA_ONE_FILE_KEY, false);
 
         contentProviderUtils = new ContentProviderUtils(this);
 
@@ -148,14 +164,17 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
         resultReceiver = new ExportServiceResultReceiver(new Handler(), this);
 
         if (savedInstanceState == null) {
-            autoConflict = CONFLICT_NONE;
+            autoConflict = ConflictResolutionStrategy.CONFLICT_NONE;
             setProgress();
             new Thread(() -> {
                 directoryFiles = ExportUtils.getAllFiles(ExportActivity.this, documentFile.getUri());
-                runOnUiThread(() -> initExport(0));
+                runOnUiThread(() -> {
+                    createExportTasks(allInOneFile);
+                    nextExport(null);
+                });
             }).start();
         } else {
-            autoConflict = savedInstanceState.getInt(BUNDLE_AUTO_CONFLICT);
+            autoConflict = ConflictResolutionStrategy.valueOf(savedInstanceState.getString(BUNDLE_AUTO_CONFLICT));
             trackExportSuccessCount = savedInstanceState.getInt(BUNDLE_SUCCESS_COUNT);
             trackExportErrorCount = savedInstanceState.getInt(BUNDLE_ERROR_COUNT);
             trackExportOverwrittenCount = savedInstanceState.getInt(BUNDLE_OVERWRITTEN_COUNT);
@@ -163,9 +182,9 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
             trackExportTotalCount = savedInstanceState.getInt(BUNDLE_TOTAL_COUNT);
             directoryFiles = savedInstanceState.getStringArrayList(BUNDLE_DIRECTORY_FILES);
             trackErrors = savedInstanceState.getStringArrayList(BUNDLE_TRACK_ERRORS);
-
+            exportTasks = new ArrayList<>(savedInstanceState.getParcelableArrayList(BUNDLE_EXPORT_TASKS));
             setProgress();
-            initExport(getTotalDone());
+            nextExport(null);
         }
 
         viewBinding.bottomAppBarLayout.bottomAppBarTitle.setText(getString(R.string.export_progress_message, directoryDisplayName));
@@ -175,7 +194,7 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
     @Override
     protected void onSaveInstanceState(@NonNull Bundle outState) {
         super.onSaveInstanceState(outState);
-        outState.putInt(BUNDLE_AUTO_CONFLICT, autoConflict);
+        outState.putString(BUNDLE_AUTO_CONFLICT, autoConflict.name());
         outState.putInt(BUNDLE_SUCCESS_COUNT, trackExportSuccessCount);
         outState.putInt(BUNDLE_ERROR_COUNT, trackExportErrorCount);
         outState.putInt(BUNDLE_OVERWRITTEN_COUNT, trackExportOverwrittenCount);
@@ -183,13 +202,14 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
         outState.putInt(BUNDLE_TOTAL_COUNT, trackExportTotalCount);
         outState.putStringArrayList(BUNDLE_DIRECTORY_FILES, (ArrayList<String>) directoryFiles);
         outState.putStringArrayList(BUNDLE_TRACK_ERRORS, trackErrors);
+        outState.putParcelableArrayList(BUNDLE_EXPORT_TASKS, exportTasks);
     }
 
     @Override
     protected void onDestroy() {
         super.onDestroy();
         conflictsQueue.clear();
-        tracks.clear();
+        exportTasks.clear();
     }
 
     @Override
@@ -202,57 +222,50 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
         this.doubleBackToCancel = true;
         Toast.makeText(this, getString(R.string.generic_click_twice_cancel), Toast.LENGTH_SHORT).show();
 
-        new Handler().postDelayed(() -> doubleBackToCancel=false, 2000);
+        new Handler().postDelayed(() -> doubleBackToCancel = false, 2000);
     }
 
-    private void initExport(int from) {
-        try (Cursor cursor = contentProviderUtils.getTrackCursor(null, null, TracksColumns._ID)) {
-            if (cursor == null) {
-                onExportEnded();
-                return;
-            }
-
-            trackExportTotalCount = cursor.getCount();
-            viewBinding.exportProgressTotal.setText("" + trackExportTotalCount);
-            for (int i = from; i < trackExportTotalCount; i++) {
-                cursor.moveToPosition(i);
-                Track track = ContentProviderUtils.createTrack(cursor);
-                tracks.add(track);
-            }
-
-            if (!tracks.isEmpty()) {
-                export(tracks.get(0));
-            } else {
-                onExportEnded();
-            }
+    private void createExportTasks(boolean allInOneFile) {
+        List<Track> tracks = contentProviderUtils.getTracks();
+        exportTasks = new ArrayList<>();
+        if (allInOneFile) {
+            String filename = "OpenTracks-Backup";
+            exportTasks.add(new ExportTask(filename, trackFileFormat, tracks.stream().map(Track::getId).collect(Collectors.toList())));
+        } else {
+            exportTasks.addAll(tracks.stream().map(it -> new ExportTask(null, trackFileFormat, List.of(it.getId()))).collect(Collectors.toList()));
         }
+        trackExportTotalCount = exportTasks.size();
     }
 
     /**
      * Enqueue track identified by UUID to be exported if not exported already or there is a conflict resolution.
-     *
-     * @param track              Track object.
-     * @param conflictResolution conflict resolution to be applied if needed.
      */
-    private void export(Track track, int conflictResolution) {
-        boolean fileExists = exportFileExists(track);
+    private void export(ExportTask exportTask, ConflictResolutionStrategy conflictResolution) {
+        boolean fileExists = exportFileExists(exportTask);
 
-        if (fileExists && conflictResolution == CONFLICT_NONE) {
-            conflict(track);
-        } else if (fileExists && conflictResolution == CONFLICT_SKIP) {
+        if (fileExists && conflictResolution == ConflictResolutionStrategy.CONFLICT_NONE) {
+            conflict(exportTask);
+        } else if (fileExists && conflictResolution == ConflictResolutionStrategy.CONFLICT_SKIP) {
             trackExportSkippedCount++;
-            onExportCompleted(track);
+            nextExport(exportTask);
         } else {
-            ExportService.enqueue(this, resultReceiver, track.getId(), trackFileFormat, directoryUri);
+            ExportService.enqueue(this, resultReceiver, exportTask, directoryUri);
         }
     }
 
-    private void export(Track track) {
-        export(track, autoConflict);
+    private void export(ExportTask exportTask) {
+        export(exportTask, autoConflict);
     }
 
-    private boolean exportFileExists(Track track) {
-        String filename = PreferencesUtils.getTrackFileformatGenerator().format(track, trackFileFormat);
+    @Deprecated //TODO Check should be done in ExportService
+    private boolean exportFileExists(ExportTask exportTask) {
+        String filename;
+        if (exportTask.isMultiExport()) {
+            filename = TrackFilenameGenerator.format(exportTask.getFilename(), exportTask.getTrackFileFormat());
+        } else {
+            Track track = contentProviderUtils.getTrack(exportTask.getTrackIds().get(0));
+            filename = PreferencesUtils.getTrackFileformatGenerator().format(track, trackFileFormat);
+        }
         return directoryFiles.stream().anyMatch(filename::equals);
     }
 
@@ -269,31 +282,29 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
     }
 
     private void setProgress() {
-        int done = getTotalDone();
-
-        viewBinding.exportProgressDone.setText("" + done);
+        viewBinding.exportProgressDone.setText("" + getTotalDone());
         viewBinding.exportProgressTotal.setText("" + trackExportTotalCount);
 
-        viewBinding.exportProgressBar.setProgress((int) ((float) done / (float) trackExportTotalCount * 100f));
-        viewBinding.exportProgressSummaryNew.setText(String.valueOf(trackExportSuccessCount));
-        viewBinding.exportProgressSummaryOverwrite.setText(String.valueOf(trackExportOverwrittenCount));
-        viewBinding.exportProgressSummarySkip.setText(String.valueOf(trackExportSkippedCount));
-        viewBinding.exportProgressSummaryErrors.setText(String.valueOf(trackExportErrorCount));
+        viewBinding.exportProgressBar.setProgress((int) ((float) getTotalDone() / (float) trackExportTotalCount * 100f));
+        viewBinding.exportProgressSummaryNew.setText("" + trackExportSuccessCount);
+        viewBinding.exportProgressSummaryOverwrite.setText("" + trackExportOverwrittenCount);
+        viewBinding.exportProgressSummarySkip.setText("" + trackExportSkippedCount);
+        viewBinding.exportProgressSummaryErrors.setText("" + trackExportErrorCount);
         viewBinding.exportProgressSummaryNewGroup.setVisibility(trackExportSuccessCount > 0 ? View.VISIBLE : View.GONE);
         viewBinding.exportProgressSummaryOverwriteGroup.setVisibility(trackExportOverwrittenCount > 0 ? View.VISIBLE : View.GONE);
         viewBinding.exportProgressSummarySkipGroup.setVisibility(trackExportSkippedCount > 0 ? View.VISIBLE : View.GONE);
         viewBinding.exportProgressSummaryErrorsGroup.setVisibility(trackExportErrorCount > 0 ? View.VISIBLE : View.GONE);
     }
 
-    private void onExportCompleted(Track track) {
-        tracks.remove(track);
+    private void nextExport(@Nullable ExportTask exportTask) {
+        exportTasks.remove(exportTask);
 
         setProgress();
-        if (tracks.isEmpty()) {
+        if (exportTasks.isEmpty()) {
             onExportEnded();
             return;
         }
-        export(tracks.get(0));
+        export(exportTasks.get(0));
     }
 
     private void onExportEnded() {
@@ -318,30 +329,32 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
     }
 
     @Override
-    public void onExportSuccess(Track.Id trackId) {
-        Track track = contentProviderUtils.getTrack(trackId);
-
-        if (exportFileExists(track)) {
+    public void onExportSuccess(ExportTask exportTask) {
+        if (exportFileExists(exportTask)) {
             trackExportOverwrittenCount++;
         } else {
             trackExportSuccessCount++;
         }
 
-        onExportCompleted(track);
+        nextExport(exportTask);
     }
 
     @Override
-    public void onExportError(Track.Id trackId) {
-        Track track = contentProviderUtils.getTrack(trackId);
-
+    public void onExportError(ExportTask exportTask) {
         trackExportErrorCount++;
-        trackErrors.add(track.getName());
+        String name;
+        if (exportTask.isMultiExport()) {
+            name = exportTask.getFilename();
+        } else {
+            name = contentProviderUtils.getTrack(exportTask.getTrackIds().get(0)).getName();
+        }
+        trackErrors.add(name);
 
-        onExportCompleted(track);
+        nextExport(exportTask);
     }
 
-    private void conflict(Track track) {
-        PendingConflict newConflict = new PendingConflict(track);
+    private void conflict(ExportTask exportTask) {
+        PendingConflict newConflict = new PendingConflict(exportTask);
         conflictsQueue.add(newConflict);
 
         if (conflictsQueue.size() == 1) {
@@ -353,10 +366,10 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
      * Handle conflicts (exporting file already exists).
      */
     private class PendingConflict {
-        private final Track track;
+        private final ExportTask exportTask;
 
-        public PendingConflict(Track track) {
-            this.track = track;
+        public PendingConflict(ExportTask exportTask) {
+            this.exportTask = exportTask;
         }
 
         /**
@@ -366,14 +379,20 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
          * @return true if it could resolve the conflict or false otherwise.
          */
         public boolean resolve() {
-            if (autoConflict == CONFLICT_NONE) {
+            if (autoConflict == ConflictResolutionStrategy.CONFLICT_NONE) {
                 viewBinding.exportProgressAlertIcon.setImageDrawable(ContextCompat.getDrawable(ExportActivity.this, R.drawable.ic_report_problem_24));
-                viewBinding.exportProgressAlertMsg.setText(getString(R.string.export_track_already_exists_msg, track.getName()));
+                String name;
+                if (exportTask.isMultiExport()) {
+                    name = exportTask.getFilename();
+                } else {
+                    name = contentProviderUtils.getTrack(exportTask.getTrackIds().get(0)).getName();
+                }
+                viewBinding.exportProgressAlertMsg.setText(getString(R.string.export_track_already_exists_msg, name));
                 setConflictVisibility(View.VISIBLE);
                 return false;
             }
 
-            export(track);
+            export(exportTask);
             return true;
         }
 
@@ -381,10 +400,10 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
          * Overwrite the export file and set the autoConflict if user set the "do it for all" switch button.
          */
         public void overwrite() {
-            export(track, CONFLICT_OVERWRITE);
+            export(exportTask, ConflictResolutionStrategy.CONFLICT_OVERWRITE);
 
             if (viewBinding.exportProgressApplyToAll.isChecked()) {
-                autoConflict = CONFLICT_OVERWRITE;
+                autoConflict = ConflictResolutionStrategy.CONFLICT_OVERWRITE;
             }
         }
 
@@ -392,10 +411,10 @@ public class ExportActivity extends FragmentActivity implements ExportServiceRes
          * Skip the export file and set the autoConflict if user set the "do it for all" switch button.
          */
         public void skip() {
-            export(track, CONFLICT_SKIP);
+            export(exportTask, ConflictResolutionStrategy.CONFLICT_SKIP);
 
             if (viewBinding.exportProgressApplyToAll.isChecked()) {
-                autoConflict = CONFLICT_SKIP;
+                autoConflict = ConflictResolutionStrategy.CONFLICT_SKIP;
             }
         }
     }

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

@@ -12,6 +12,9 @@ import androidx.annotation.NonNull;
 import androidx.core.app.JobIntentService;
 import androidx.documentfile.provider.DocumentFile;
 
+import java.util.List;
+import java.util.stream.Collectors;
+
 import de.dennisguse.opentracks.data.ContentProviderUtils;
 import de.dennisguse.opentracks.data.models.Track;
 import de.dennisguse.opentracks.io.file.TrackFileFormat;
@@ -22,16 +25,14 @@ public class ExportService extends JobIntentService {
     private static final int JOB_ID = 1;
 
     private static final String EXTRA_RECEIVER = "extra_receiver";
-    private static final String EXTRA_TRACK_ID = "extra_track_id";
-    private static final String EXTRA_TRACK_FILE_FORMAT = "extra_track_file_format";
+    private static final String EXTRA_EXPORT_TASK = "export_task";
     private static final String EXTRA_DIRECTORY_URI = "extra_directory_uri";
     private static final String TAG = ExportService.class.getSimpleName();
 
-    public static void enqueue(Context context, ExportServiceResultReceiver receiver, Track.Id trackId, TrackFileFormat trackFileFormat, Uri directoryUri) {
+    public static void enqueue(Context context, ExportServiceResultReceiver receiver, ExportTask exportTask, Uri directoryUri) {
         Intent intent = new Intent(context, JobService.class);
         intent.putExtra(EXTRA_RECEIVER, receiver);
-        intent.putExtra(EXTRA_TRACK_ID, trackId);
-        intent.putExtra(EXTRA_TRACK_FILE_FORMAT, trackFileFormat);
+        intent.putExtra(EXTRA_EXPORT_TASK, exportTask);
         intent.putExtra(EXTRA_DIRECTORY_URI, directoryUri);
         enqueueWork(context, ExportService.class, JOB_ID, intent);
     }
@@ -40,13 +41,12 @@ public class ExportService extends JobIntentService {
     protected void onHandleWork(@NonNull Intent intent) {
         // Get all data.
         ResultReceiver resultReceiver = intent.getParcelableExtra(EXTRA_RECEIVER);
-        Track.Id trackId = intent.getParcelableExtra(EXTRA_TRACK_ID);
-        TrackFileFormat trackFileFormat = (TrackFileFormat) intent.getSerializableExtra(EXTRA_TRACK_FILE_FORMAT);
+        ExportTask exportTask = intent.getParcelableExtra(EXTRA_EXPORT_TASK);
         Uri directoryUri = intent.getParcelableExtra(EXTRA_DIRECTORY_URI);
 
         // Prepare resultCode and bundle to send to the receiver.
         Bundle bundle = new Bundle();
-        bundle.putParcelable(ExportServiceResultReceiver.RESULT_EXTRA_TRACK_ID, trackId);
+        bundle.putParcelable(ExportServiceResultReceiver.RESULT_EXTRA_EXPORT_TASK, exportTask);
 
         // Build directory file.
         DocumentFile directoryFile = DocumentFile.fromTreeUri(this, directoryUri);
@@ -57,9 +57,7 @@ public class ExportService extends JobIntentService {
         }
 
         // Export.
-        ContentProviderUtils contentProviderUtils = new ContentProviderUtils(this);
-        Track track = contentProviderUtils.getTrack(trackId);
-        boolean success = ExportUtils.exportTrack(this, trackFileFormat, directoryFile, track);
+        boolean success = ExportUtils.exportTrack(this, directoryFile, exportTask);
 
         // Send result to the receiver.
         int resultCode = success ? ExportServiceResultReceiver.RESULT_CODE_SUCCESS : ExportServiceResultReceiver.RESULT_CODE_ERROR;

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

@@ -17,7 +17,7 @@ public class ExportServiceResultReceiver extends ResultReceiver {
     public static final int RESULT_CODE_SUCCESS = 1;
     public static final int RESULT_CODE_ERROR = 0;
 
-    public static final String RESULT_EXTRA_TRACK_ID = "result_extra_track_id";
+    public static final String RESULT_EXTRA_EXPORT_TASK = "result_extra_export_task";
 
     private final Receiver receiver;
 
@@ -28,19 +28,19 @@ public class ExportServiceResultReceiver extends ResultReceiver {
 
     @Override
     protected void onReceiveResult(int resultCode, Bundle resultData) {
-        Track.Id trackId = resultData.getParcelable(ExportServiceResultReceiver.RESULT_EXTRA_TRACK_ID);
+        ExportTask exportTask = resultData.getParcelable(ExportServiceResultReceiver.RESULT_EXTRA_EXPORT_TASK);
         switch (resultCode) {
-            case RESULT_CODE_SUCCESS -> receiver.onExportSuccess(trackId);
-            case RESULT_CODE_ERROR -> receiver.onExportError(trackId);
+            case RESULT_CODE_SUCCESS -> receiver.onExportSuccess(exportTask);
+            case RESULT_CODE_ERROR -> receiver.onExportError(exportTask);
             default -> throw new RuntimeException("Unknown resultCode.");
         }
     }
 
     public interface Receiver {
-        default void onExportSuccess(Track.Id trackId) {
+        default void onExportSuccess(ExportTask exportTask) {
         }
 
-        default void onExportError(Track.Id trackId) {
+        default void onExportError(ExportTask exportTask) {
         }
     }
 }

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

@@ -0,0 +1,87 @@
+package de.dennisguse.opentracks.io.file.exporter;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.util.List;
+import java.util.Objects;
+
+import de.dennisguse.opentracks.data.models.Track;
+import de.dennisguse.opentracks.io.file.TrackFileFormat;
+
+public class ExportTask implements Parcelable {
+
+    private final String filename; //TODO Name will only be used when exporting multiple tracks
+
+    private final TrackFileFormat trackFileFormat;
+
+    private final List<Track.Id> trackIds;
+
+    public ExportTask(@Nullable String filename, @NonNull TrackFileFormat trackFileFormat, @NonNull List<Track.Id> trackIds) {
+        this.filename = filename;
+        this.trackFileFormat = trackFileFormat;
+        this.trackIds = trackIds;
+    }
+
+    protected ExportTask(Parcel in) {
+        filename = in.readString();
+        trackFileFormat = TrackFileFormat.valueOf(in.readString());
+        trackIds = in.createTypedArrayList(Track.Id.CREATOR);
+    }
+
+    public String getFilename() {
+        return filename;
+    }
+
+    public TrackFileFormat getTrackFileFormat() {
+        return trackFileFormat;
+    }
+
+    public List<Track.Id> getTrackIds() {
+        return trackIds;
+    }
+
+    public boolean isMultiExport() {
+        return trackIds.size() > 1;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        ExportTask that = (ExportTask) o;
+        return Objects.equals(filename, that.filename) && trackFileFormat == that.trackFileFormat && Objects.equals(trackIds, that.trackIds);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(filename, trackFileFormat, trackIds);
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeString(filename);
+        dest.writeString(trackFileFormat.name());
+        dest.writeTypedList(trackIds);
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    public static final Creator<ExportTask> CREATOR = new Creator<>() {
+        @Override
+        public ExportTask createFromParcel(Parcel in) {
+            return new ExportTask(in);
+        }
+
+        @Override
+        public ExportTask[] newArray(int size) {
+            return new ExportTask[size];
+        }
+    };
+}

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

@@ -98,12 +98,7 @@ public class GPXTrackExporter implements TrackExporter {
     }
 
     @Override
-    public boolean writeTrack(Track track, @NonNull OutputStream outputStream) {
-        return writeTrack(new Track[]{track}, outputStream);
-    }
-
-    @Override
-    public boolean writeTrack(Track[] tracks, @NonNull OutputStream outputStream) {
+    public boolean writeTrack(List<Track> tracks, @NonNull OutputStream outputStream) {
         try {
             prepare(outputStream);
             writeHeader();

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

@@ -99,18 +99,14 @@ public class KMLTrackExporter implements TrackExporter {
         this.contentProviderUtils = contentProviderUtils;
     }
 
-    public boolean writeTrack(Track track, @NonNull OutputStream outputStream) {
-        return writeTrack(new Track[]{track}, outputStream);
-    }
-
-    public boolean writeTrack(Track[] tracks, @NonNull OutputStream outputStream) {
+    public boolean writeTrack(List<Track> tracks, @NonNull OutputStream outputStream) {
         try {
             prepare(outputStream);
             writeHeader(tracks);
             for (Track track : tracks) {
                 writeMarkers(track);
             }
-            boolean hasMultipleTracks = tracks.length > 1;
+            boolean hasMultipleTracks = tracks.size() > 1;
             if (hasMultipleTracks) {
                 writeMultiTrackBegin();
             }
@@ -222,7 +218,7 @@ public class KMLTrackExporter implements TrackExporter {
         }
     }
 
-    private void writeHeader(Track[] tracks) {
+    private void writeHeader(List<Track> tracks) {
         if (printWriter != null) {
             printWriter.println(
                     """
@@ -241,7 +237,7 @@ public class KMLTrackExporter implements TrackExporter {
             printWriter.println("<open>1</open>");
             printWriter.println("<visibility>1</visibility>");
 
-            Track track = tracks[0];
+            Track track = tracks.get(0);
             printWriter.println("<name>" + StringUtils.formatCData(track.getName()) + "</name>");
             printWriter.println("<atom:generator>" + StringUtils.formatCData(context.getString(R.string.app_name)) + "</atom:generator>");
 
@@ -293,7 +289,7 @@ public class KMLTrackExporter implements TrackExporter {
 
     private void writeMultiTrackBegin() {
         if (printWriter != null) {
-            printWriter.println("<Folder id=tour>");
+            printWriter.println("<Folder id=\"tracks\">");
             printWriter.println("<name>" + context.getString(R.string.generic_tracks) + "</name>");
             printWriter.println("<open>1</open>");
         }

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

@@ -28,6 +28,7 @@ import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.util.List;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
@@ -64,12 +65,7 @@ public class KmzTrackExporter implements TrackExporter {
     }
 
     @Override
-    public boolean writeTrack(Track track, @NonNull OutputStream outputStream) {
-        return writeTrack(new Track[]{track}, outputStream);
-    }
-
-    @Override
-    public boolean writeTrack(Track[] tracks, @NonNull OutputStream outputStream) {
+    public boolean writeTrack(List<Track> tracks, @NonNull OutputStream outputStream) {
         try (ZipOutputStream zipOutputStream = new ZipOutputStream(outputStream)) {
             // Add kml file
             ZipEntry zipEntry = new ZipEntry(KMZ_KML_FILE);
@@ -91,7 +87,7 @@ public class KmzTrackExporter implements TrackExporter {
         }
     }
 
-    private void addImages(Context context, Track[] tracks, ZipOutputStream zipOutputStream) throws InterruptedException, IOException {
+    private void addImages(Context context, List<Track> tracks, ZipOutputStream zipOutputStream) throws InterruptedException, IOException {
         for (Track track : tracks) {
             try (Cursor cursor = contentProviderUtils.getMarkerCursor(track.getId(), null, -1)) {
                 if (cursor != null && cursor.moveToFirst()) {

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

@@ -19,6 +19,7 @@ package de.dennisguse.opentracks.io.file.exporter;
 import androidx.annotation.NonNull;
 
 import java.io.OutputStream;
+import java.util.List;
 
 import de.dennisguse.opentracks.data.models.Track;
 
@@ -29,7 +30,5 @@ import de.dennisguse.opentracks.data.models.Track;
  */
 public interface TrackExporter {
 
-    boolean writeTrack(Track[] tracks, @NonNull OutputStream outputStream);
-
-    boolean writeTrack(Track track, @NonNull OutputStream outputStream);
+    boolean writeTrack(List<Track> tracks, @NonNull OutputStream outputStream);
 }

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

@@ -101,6 +101,30 @@ public abstract class DirectoryChooserActivity extends AppCompatActivity {
         }
     }
 
+    public static class ExportDirectoryChooserOneFileActivity extends DirectoryChooserActivity {
+
+        @Override
+        protected DocumentFile configureDirectoryChooserIntent(Intent intent) {
+            super.configureDirectoryChooserIntent(intent);
+            intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
+            return IntentUtils.toDocumentFile(this, PreferencesUtils.getDefaultExportDirectoryUri());
+        }
+
+        @Override
+        protected boolean isDirectoryValid(final DocumentFile directoryUri) {
+            return super.isDirectoryValid(directoryUri) && directoryUri.canWrite();
+        }
+
+        @Override
+        protected Intent createNextActivityIntent(Uri directoryUri) {
+            Intent intent = IntentUtils.newIntent(this, ExportActivity.class);
+            intent.putExtra(ExportActivity.EXTRA_DIRECTORY_URI_KEY, directoryUri);
+            intent.putExtra(ExportActivity.EXTRA_ONE_FILE_KEY, true);
+            intent.putExtra(ExportActivity.EXTRA_TRACKFILEFORMAT_KEY, PreferencesUtils.getExportTrackFileFormat());
+            return intent;
+        }
+    }
+
     public static class DefaultTrackExportDirectoryChooserActivity extends DirectoryChooserActivity {
 
         @Override

src/main/java/de/dennisguse/opentracks/sensors/BluetoothUtils.java

@@ -28,6 +28,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.UUID;
 
+import de.dennisguse.opentracks.data.models.BatteryLevel;
 import de.dennisguse.opentracks.data.models.Cadence;
 import de.dennisguse.opentracks.data.models.Distance;
 import de.dennisguse.opentracks.data.models.HeartRate;
@@ -48,6 +49,11 @@ public class BluetoothUtils {
 
     public static final UUID CLIENT_CHARACTERISTIC_CONFIG_UUID = new UUID(0x290200001000L, 0x800000805f9b34fbL);
 
+    public static final ServiceMeasurementUUID BATTERY = new ServiceMeasurementUUID(
+            new UUID(0x180F00001000L, 0x800000805f9b34fbL),
+            new UUID(0x2A1900001000L, 0x800000805f9b34fbL)
+    );
+
     public static final ServiceMeasurementUUID HEARTRATE = new ServiceMeasurementUUID(
             new UUID(0x180D00001000L, 0x800000805f9b34fbL),
             new UUID(0x2A3700001000L, 0x800000805f9b34fbL)
@@ -102,6 +108,17 @@ public class BluetoothUtils {
         return BluetoothUtils.getAdapter(context) != null;
     }
 
+    public static BatteryLevel parseBatteryLevel(BluetoothGattCharacteristic characteristic) {
+        // DOCUMENTATION org.bluetooth.characteristic.battery_level.xml
+        byte[] raw = characteristic.getValue();
+        if (raw.length == 0) {
+            return null;
+        }
+
+        final int batteryLevel = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, 0);
+        return BatteryLevel.of(batteryLevel);
+    }
+
     public static HeartRate parseHeartRate(BluetoothGattCharacteristic characteristic) {
         //DOCUMENTATION https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.heart_rate_measurement.xml
         byte[] raw = characteristic.getValue();

src/main/java/de/dennisguse/opentracks/services/handlers/EGM2008CorrectionManager.java

@@ -5,7 +5,6 @@ import android.util.Log;
 
 import java.io.IOException;
 
-import de.dennisguse.opentracks.data.models.Altitude;
 import de.dennisguse.opentracks.data.models.TrackPoint;
 import de.dennisguse.opentracks.util.EGM2008Utils;
 
@@ -30,6 +29,6 @@ public class EGM2008CorrectionManager {
             }
         }
 
-        trackPoint.setAltitude(Altitude.EGM2008.of(egm2008Correction.correctAltitude(trackPoint.getLocation())));
+        trackPoint.setAltitude(egm2008Correction.correctAltitude(trackPoint.getLocation()));
     }
 }

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

@@ -49,11 +49,6 @@ public class MainSettingsFragment extends PreferenceFragmentCompat {
             ((SettingsActivity) getActivity()).openScreen(getString(R.string.settings_api_key));
             return true;
         });
-
-        findPreference(getString(R.string.settings_open_tracks_key)).setOnPreferenceClickListener(preference -> {
-            ((SettingsActivity) getActivity()).openScreen(getString(R.string.settings_open_tracks_key));
-            return true;
-        });
     }
 
     @Override

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

@@ -1,21 +0,0 @@
-package de.dennisguse.opentracks.settings;
-
-import android.os.Bundle;
-
-import androidx.preference.PreferenceFragmentCompat;
-
-import de.dennisguse.opentracks.R;
-
-public class OpenTracksSettingsFragment extends PreferenceFragmentCompat {
-
-    @Override
-    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
-        addPreferencesFromResource(R.xml.settings_open_tracks);
-    }
-
-    @Override
-    public void onStart() {
-        super.onStart();
-        ((SettingsActivity) getActivity()).getSupportActionBar().setTitle(R.string.settings_open_tracks_title);
-    }
-}

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

@@ -93,8 +93,6 @@ public class SettingsActivity extends AbstractActivity implements ChooseActivity
             fragment = new ImportExportSettingsFragment();
         } else if (key.equals(getString(R.string.settings_api_key))) {
             fragment = new PublicAPISettingsFragment();
-        } else if (key.equals(getString(R.string.settings_open_tracks_key))) {
-            fragment = new OpenTracksSettingsFragment();
         }
 
         return fragment;

src/main/java/de/dennisguse/opentracks/util/EGM2008Utils.java

@@ -11,6 +11,7 @@ import java.io.IOException;
 import java.util.Objects;
 
 import de.dennisguse.opentracks.R;
+import de.dennisguse.opentracks.data.models.Altitude;
 
 /**
  * Converts WGS84 altitude to EGM2008 (should be close to height above sea level).
@@ -103,7 +104,7 @@ public class EGM2008Utils {
             return indices.getAbsoluteIndex() == getIndices(location).getAbsoluteIndex();
         }
 
-        public double correctAltitude(@NonNull Location location) {
+        public Altitude.EGM2008 correctAltitude(@NonNull Location location) {
             if (!canCorrect(location))
                 throw new RuntimeException("Undulation data not loaded for this location.");
             if (!location.hasAltitude())
@@ -134,7 +135,7 @@ public class EGM2008Utils {
 
             double h = 0.003 * undulationRaw - 108;
 
-            return location.getAltitude() - h;
+            return Altitude.EGM2008.of(location.getAltitude() - h);
         }
 
         private boolean isSouthPole() {

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

@@ -17,13 +17,16 @@ import java.io.IOException;
 import java.io.OutputStream;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.stream.Collectors;
 
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.data.ContentProviderUtils;
 import de.dennisguse.opentracks.data.models.Track;
 import de.dennisguse.opentracks.io.file.TrackFileFormat;
+import de.dennisguse.opentracks.io.file.TrackFilenameGenerator;
 import de.dennisguse.opentracks.io.file.exporter.ExportService;
 import de.dennisguse.opentracks.io.file.exporter.ExportServiceResultReceiver;
+import de.dennisguse.opentracks.io.file.exporter.ExportTask;
 import de.dennisguse.opentracks.io.file.exporter.TrackExporter;
 import de.dennisguse.opentracks.settings.PreferencesUtils;
 import de.dennisguse.opentracks.settings.SettingsActivity;
@@ -44,7 +47,7 @@ public class ExportUtils {
 
             ExportServiceResultReceiver resultReceiver = new ExportServiceResultReceiver(new Handler(), new ExportServiceResultReceiver.Receiver() {
                 @Override
-                public void onExportError(Track.Id trackId) {
+                public void onExportError(ExportTask unused) {
                     Intent intent = new Intent(context, SettingsActivity.class);
                     intent.putExtra(SettingsActivity.EXTRAS_CHECK_EXPORT_DIRECTORY, true);
                     intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
@@ -52,21 +55,29 @@ public class ExportUtils {
                 }
             });
 
-            ExportService.enqueue(context, resultReceiver, trackId, trackFileFormat, directory.getUri());
+            ExportService.enqueue(context, resultReceiver, new ExportTask(null, trackFileFormat, List.of(trackId)), directory.getUri());
         }
     }
 
-    public static boolean exportTrack(Context context, TrackFileFormat trackFileFormat, DocumentFile directory, Track track) {
-        TrackExporter trackExporter = trackFileFormat.createTrackExporter(context, new ContentProviderUtils(context));
+    public static boolean exportTrack(Context context, DocumentFile directory, ExportTask exportTask) {
+        ContentProviderUtils contentProviderUtils = new ContentProviderUtils(context);
+        List<Track> tracks = exportTask.getTrackIds().stream().map(contentProviderUtils::getTrack).collect(Collectors.toList());
+        Uri exportDocumentFileUri;
+        if (tracks.size() == 1) {
+            exportDocumentFileUri = getExportDocumentFileUri(context, tracks.get(0), exportTask.getTrackFileFormat(), directory);
+        } else {
+            String filename = TrackFilenameGenerator.format(exportTask.getFilename(), exportTask.getTrackFileFormat());
+            exportDocumentFileUri = getExportDocumentFileUri(context, filename, exportTask.getTrackFileFormat(), directory);
+        }
 
-        Uri exportDocumentFileUri = getExportDocumentFileUri(context, track, trackFileFormat, directory);
         if (exportDocumentFileUri == null) {
             Log.e(TAG, "Couldn't create document file for export");
             return false;
         }
 
+        TrackExporter trackExporter = exportTask.getTrackFileFormat().createTrackExporter(context, contentProviderUtils);
         try (OutputStream outputStream = context.getContentResolver().openOutputStream(exportDocumentFileUri)) {
-            if (trackExporter.writeTrack(track, outputStream)) {
+            if (trackExporter.writeTrack(tracks, outputStream)) {
                 return true;
             } else {
                 if (!DocumentFile.fromSingleUri(context, exportDocumentFileUri).delete()) {
@@ -102,6 +113,10 @@ public class ExportUtils {
 
     private static Uri getExportDocumentFileUri(Context context, Track track, TrackFileFormat trackFileFormat, DocumentFile directory) {
         String exportFileName = PreferencesUtils.getTrackFileformatGenerator().format(track, trackFileFormat);
+        return getExportDocumentFileUri(context, exportFileName, trackFileFormat, directory);
+    }
+
+    private static Uri getExportDocumentFileUri(Context context, String exportFileName, TrackFileFormat trackFileFormat, DocumentFile directory) {
         Uri exportDocumentFileUri = findFile(context, directory.getUri(), exportFileName);
         if (exportDocumentFileUri == null) {
             final DocumentFile file = directory.createFile(trackFileFormat.getMimeType(), exportFileName);

src/main/res/menu/track_list.xml

@@ -42,4 +42,8 @@ limitations under the License.
         android:id="@+id/track_list_settings"
         android:icon="@drawable/ic_settings_24dp"
         android:title="@string/menu_settings" />
+    <item
+        android:id="@+id/track_list_help"
+        android:title="@string/menu_help" />
+
 </menu>

src/main/res/values-b+es+419/strings.xml

@@ -491,7 +491,6 @@
     <string name="settings_import_section">Importar</string>
     <string name="aggregated_stats_filter_no_results">No hay actividades para el filtro especificado</string>
     <string name="value_float_mile_hour_recommended">%1$.1f mi/h (recomendado)</string>
-    <string name="settings_open_tracks_title">Open Tracks</string>
     <string name="value_float_kilometer_hour">%1$.1f km/h</string>
     <string name="value_float_kilometer_hour_recommended">%1$.1f km/h (recomendado)</string>
     <string name="generic_undo">Deshacer</string>

src/main/res/values-cs/strings.xml

@@ -520,7 +520,6 @@ limitations under the License.
     <string name="settings_sensors_title">Bluetooth senzory</string>
     <string name="settings_gps_summary">Časový interval, Interval vzdálenosti, Maximální vzdálenost, Přesnost</string>
     <string name="settings_ui_summary">Vzhled, Rozložení záznamu, Téma</string>
-    <string name="settings_open_tracks_title">O programu</string>
     <string name="settings_open_tracks_summary">Vše o projektu OpenTracks</string>
     <string name="settings_defaults_title">Výchozí jednotky a aktivity</string>
     <string name="settings_ui_title">Uživatelské rozhraní</string>

src/main/res/values-da/strings.xml

@@ -537,7 +537,6 @@ Hvis GPS-enheden rapporterer unøjagtige data (f.eks. Placering, hastighed, høj
     <string name="settings_ui_summary">Udseende, Optagelse af layout, Tema</string>
     <string name="description_speed_source_gps">GPS</string>
     <string name="generic_filter">Filter</string>
-    <string name="settings_open_tracks_title">Åbne spor</string>
     <string name="custom_layout_list_edit_name">Skriv navnet på det layout, der skal tilføjes</string>
     <string name="settings_layout_reset_confirm_message">Alle layoutindstillinger vil blive tilbageført til standardværdierne. Dette vil ikke slette spor på enheden.</string>
     <string name="settings_all_reset">Nulstil</string>

src/main/res/values-de/strings.xml

@@ -574,6 +574,5 @@ Meldet das GPS-Gerät ungenaue Daten (z.B. Standort, Geschwindigkeit, Höhe), ka
     <string name="settings_ui_summary">Erscheinungsbild, Aufzeichnungslayout, Theme</string>
     <string name="settings_gps_summary">Zeitintervall, Entfernungsintervall, Max Entfernung, Genauigkeit</string>
     <string name="description_speed_nautical">Geschwindigkeit (Knoten)</string>
-    <string name="settings_open_tracks_title">Open Tracks</string>
     <string name="gps_recording_status">%1$s: %2$s</string>
 </resources>

src/main/res/values-es/strings.xml

@@ -542,7 +542,6 @@ limitations under the License.
     <string name="settings_open_tracks_summary">Todo sobre el proyecto OpenTracks</string>
     <string name="settings_defaults_title">Unidades y Actividad predeterminadas</string>
     <string name="settings_defaults_summary">Unidades preferidas, Actividad predeterminada, Nombre predeterminado del recorrido</string>
-    <string name="settings_open_tracks_title">Open Tracks</string>
     <string name="generic_undo">Deshacer</string>
     <string name="no_compatible_file_manager_installed">No hay un gestor de archivos compatible instalado</string>
     <string name="settings_public_api_disabled_toast">La API pública de OpenTracks está deshabilitada: esta se puede activar en los ajustes.</string>

src/main/res/values-et/strings.xml

@@ -498,7 +498,6 @@ limitations under the License.
     <string name="settings_import_export_title">Import/Eksport</string>
     <string name="settings_gps_title">GPS</string>
     <string name="settings_open_tracks_summary">Kõik OpenTracks Projekti Kohta</string>
-    <string name="settings_open_tracks_title">OpenTracks</string>
     <string name="settings_reset_summary">Lähtestage Seaded vaikeväärtustele</string>
     <string name="settings_recording_customize_layout_title">Kohandage oma salvestuspaigutust</string>
     <string name="settings_recording_customize_layout_select_columns">Andmeväljad rea kohta</string>

src/main/res/values-eu/strings.xml

@@ -528,7 +528,6 @@ GPS gailuak datu okerrak salatzen baditu (adibidez, kokapena, abiadura, kota), O
     <string name="settings_defaults_summary">Unitate Hobetsia, Jarduera Lehenetsia, Pistaren Izen Lehenetsia</string>
     <string name="settings_ui_title">Interfazea</string>
     <string name="settings_ui_summary">Itxura, Grabazioaren Diseinua, Gaia</string>
-    <string name="settings_open_tracks_title">Ireki Pistak</string>
     <string name="settings_cycling_sensor">Txirrindularitza</string>
     <string name="generic_filter">Iragazkia</string>
     <string name="generic_from">Nondik</string>

src/main/res/values-fr/strings.xml

@@ -526,7 +526,6 @@ Si le dispositif GPS signale des données inexactes (par exemple, la localisatio
     <string name="settings_defaults_summary">Unités préférées, Activité par défaut, Suivi du nom par défaut</string>
     <string name="settings_defaults_title">Unités et activité par défaut</string>
     <string name="settings_open_tracks_summary">A propos du projet OpenTracks</string>
-    <string name="settings_open_tracks_title">Open Tracks</string>
     <string name="generic_undo">Annuler</string>
     <string name="menu_add_custom_layout">Nouvelle présentation</string>
     <string name="generic_filter">Filtre</string>

src/main/res/values-ga/strings.xml

@@ -208,7 +208,6 @@
     <string name="settings_ui_summary">Dealramh, Leagan Amach Taifeadta, Téama</string>
     <string name="settings_sensors_summary">Braiteoirí Rothaíochta, Imlíne Rothaí, Braiteoirí Reatha</string>
     <string name="bluetooth_disabled">Cumasaigh Bluetooth le do thoil.</string>
-    <string name="settings_open_tracks_title">Open Tracks</string>
     <string name="settings_open_tracks_summary">Gach Maidir Tionscadal OpenTracks</string>
     <string name="settings_defaults_title">Aonaid agus Gníomhaíocht Réamhshocraithe</string>
     <string name="settings_ui_title">Comhéadan Úsáideora</string>

src/main/res/values-gl/strings.xml

@@ -505,7 +505,6 @@ Se o GPS informa sobre datos pouco precisos (ex.: localización, velocidade, ele
     <string name="value_float_mile_hour_recommended">%1$.1f km/h (recomendado)</string>
     <string name="value_float_kilometer_hour_recommended">%1$.1f km/h (recomendado)</string>
     <string name="stats_clock">Reloxo</string>
-    <string name="settings_open_tracks_title">Open Tracks</string>
     <string name="settings_defaults_summary">Unidades preferidas, Actividade por defecto, Nome da ruta</string>
     <string name="settings_announcements_summary">A Distancia, Tempo, Voz Velocidade</string>
     <string name="settings_open_tracks_summary">Todo Sobre OpenTracks Proxecto</string>

src/main/res/values-it/strings.xml

@@ -506,7 +506,6 @@ Infatti, un\'applicazione deve supportare <i>ACTION_VIEW</i> con MIME <i>applica
     <string name="settings_layout_reset_done">Tutte le impostazioni del layout sono state reimpostate ai valori predefiniti</string>
     <string name="settings_generic_sensor">Generico</string>
     <string name="value_float_kilometer_hour">%1$.1f km/h</string>
-    <string name="settings_open_tracks_title">Binari aperti</string>
     <string name="settings_open_tracks_summary">Tutto a proposito del progetto OpenTracks</string>
     <string name="settings_ui_title">Interfaccia Utente</string>
     <string name="settings_ui_summary">Aspetto, Layout durante la registrazione, Tema</string>

src/main/res/values-nb/strings.xml

@@ -498,7 +498,6 @@ limitations under the License.
     <string name="value_float_mile_hour">%1$.1f mi/h</string>
     <string name="value_float_mile_hour_recommended">%1$.1f mi/h (anbefales)</string>
     <string name="stats_clock">Klokke</string>
-    <string name="settings_open_tracks_title">OpenTracks</string>
     <string name="settings_defaults_summary">Foretrukne enheter, forvalgsaktivitet, forvalgt spornavn</string>
     <string name="settings_sensors_summary">Sykkelsensorer, hjulomkrets, løpesensorer</string>
     <string name="settings_open_tracks_summary">Alt om OpenTracks-prosjektet</string>
@@ -603,6 +602,7 @@ limitations under the License.
     <string name="settings_public_api_package_title">Pakkenavn for offentlig API</string>
     <string name="introduction_osm_dashboard">OpenTracks sørger ikke selv for kart. Installer OSMDashboard for å vise opptakene dine på et kart.</string>
     <string name="help_data_google_play_services_content">Nei</string>
-    <string name="settings_sensor_heart_rate_max">Soner: Makspuls (bpm)</string>
+    <string name="settings_sensor_heart_rate_max">Soner: maksimum puls (slag/min)</string>
     <string name="settings_api_summary">Fjernkontroll- og statistikk-API for andre programmer</string>
+    <string name="voice_on_device_speaker_title">Bruk enhetens høyttaler</string>
 </resources>

src/main/res/values-nl/strings.xml

@@ -549,7 +549,6 @@ Als het GPS-apparaat onnauwkeurige gegevens rapporteert (bijv. locatie, snelheid
     <string name="settings_recording_customize_layout_select_columns">Gegevensvelden per rij</string>
     <string name="value_float_mile_hour">%1$.1f mi/u</string>
     <string name="value_float_mile_hour_recommended">%1$.1f mi/u (aanbevolen)</string>
-    <string name="settings_open_tracks_title">Open Tracks</string>
     <string name="settings_open_tracks_summary">Alles over het OpenTracks Project</string>
     <string name="activity_type_workout">training</string>
     <string name="settings_layout_reset_confirm_title">Lay-outs terugzetten\?</string>

src/main/res/values-pl/strings.xml

@@ -536,7 +536,6 @@ limitations under the License.
     <string name="field_remove_from_layout">Usuń</string>
     <string name="field_set_primary">Główny</string>
     <string name="field_set_secondary">Poboczny</string>
-    <string name="settings_open_tracks_title">Otwarte tory</string>
     <string name="settings_open_tracks_summary">Wszystko o projekcie OpenTacks</string>
     <string name="settings_defaults_title">Domyślne Jednostki i Aktywności</string>
     <string name="settings_defaults_summary">Preferowane Jednostki, Domyślne Aktywności, Nazwy Treningów</string>

src/main/res/values-pt-rBR/strings.xml

@@ -458,7 +458,6 @@
     <string name="settings_ui_title">Interface do usuário</string>
     <string name="settings_defaults_title">Unidades e Atividade Default</string>
     <string name="settings_defaults_summary">Unidades Preferidas, Atividade Padrão, Nome Padrão da Pista</string>
-    <string name="settings_open_tracks_title">Trilhas abertas</string>
     <string name="settings_gps_title">GPS</string>
     <string name="settings_reset_summary">Redefinir configurações para valores padrão</string>
     <string name="settings_activity_defaults_category">Defaults da atividade</string>

src/main/res/values-pt-rPT/strings.xml

@@ -440,7 +440,6 @@
     <string name="sensor_state_power_avg">Energia Avg</string>
     <string name="sensor_could_not_scan">Não foi possível procurar aparelhos Bluetooth (erro %1$i).</string>
     <string name="bluetooth_disabled">Ative o Bluetooth.</string>
-    <string name="settings_open_tracks_title">Trilhas abertas</string>
     <string name="settings_open_tracks_summary">Tudo sobre o Projeto OpenTracks</string>
     <string name="settings_defaults_title">Unidades e Atividade Default</string>
     <string name="settings_defaults_summary">Unidades Preferidas, Atividade Padrão, Nome Padrão da Pista</string>

src/main/res/values-pt/strings.xml

@@ -444,7 +444,6 @@ limitations under the License.
     <string name="sensor_state_power_avg">Energia Avg</string>
     <string name="sensor_could_not_scan">Não foi possível procurar aparelhos Bluetooth (erro %1$i).</string>
     <string name="bluetooth_disabled">Ative o Bluetooth.</string>
-    <string name="settings_open_tracks_title">Trilhas abertas</string>
     <string name="settings_open_tracks_summary">Tudo sobre o Projeto OpenTracks</string>
     <string name="settings_defaults_title">Unidades e Atividade Default</string>
     <string name="settings_gps_summary">Intervalo de tempo, Intervalo de distância, Distância máxima, Precisão</string>

src/main/res/values-ru/strings.xml

@@ -505,7 +505,6 @@ limitations under the License.
     <string name="settings_public_api_enabled_summary_off">Только OpenTracks может запускать и останавливать запись.</string>
     <string name="value_float_mile_hour_recommended">%1$.1f миль/ч (рекомендуется)</string>
     <string name="export_cannot_write_to_dir">Невозможно записать в папку экспорта.</string>
-    <string name="settings_open_tracks_title">Open Tracks</string>
     <string name="settings_open_tracks_summary">Всё о проекте OpenTracks</string>
     <string name="settings_defaults_summary">Предпочитаемые единицы, активность по умолчанию, название трека</string>
     <string name="settings_recording_customize_layout_title">Изменить раскладку записи</string>

src/main/res/values-sk/strings.xml

@@ -511,7 +511,6 @@ limitations under the License.
     <string name="settings_defaults_summary">Predvolené jednotky, predvolená aktivita, predvolený názov skladby</string>
     <string name="settings_ui_title">Používateľské rozhranie</string>
     <string name="settings_ui_summary">Vzhľad, Rozloženie nahrávania, Téma</string>
-    <string name="settings_open_tracks_title">Otvorené trate</string>
     <string name="settings_announcements_title">Hlasové oznámenia</string>
     <string name="settings_gps_title">GPS</string>
     <string name="settings_sensors_title">Senzory Bluetooth</string>

src/main/res/values-tr/strings.xml

@@ -427,7 +427,6 @@ limitations under the License.
     <string name="sensor_state_heart_rate_max">Maks. Kalp atış hızı</string>
     <string name="sensor_could_not_scan">Bluetooth cihazları taranamadı (%1$i hatası).</string>
     <string name="bluetooth_disabled">Lütfen Bluetooth\'u etkinleştirin.</string>
-    <string name="settings_open_tracks_title">Open Tracks</string>
     <string name="settings_open_tracks_summary">OpenTracks Projesi hakkında her şey</string>
     <string name="help_support_title">OpenTracks\'i nasıl destekleyebilirim\?</string>
     <string name="export_track_already_exists_msg">%1$s parçası hedef dizinde zaten var.</string>

src/main/res/values-uk/strings.xml

@@ -516,7 +516,6 @@ limitations under the License.
     <string name="stats_sensors_cadence">Каденція</string>
     <string name="stats_sensors_heart_rate">частота серцебиття</string>
     <string name="settings_defaults_summary">Переважні одиниці виміру, активність за замовчуванням, Ім\'я треку за замовчуванням</string>
-    <string name="settings_open_tracks_title">Відкриті доріжки</string>
     <string name="settings_open_tracks_summary">Все про проект OpenTracks</string>
     <string name="settings_defaults_title">Одиниці виміру і дії за замовчуванням</string>
     <string name="settings_ui_title">Інтерфейс користувача</string>

src/main/res/values-vi/strings.xml

@@ -492,7 +492,6 @@ limitations under the License.
     <string name="value_float_kilometer_hour">%1$.1f km/h</string>
     <string name="value_float_kilometer_hour_recommended">%1$.1f km/h (khuyến khích)</string>
     <string name="stats_clock">Cái đồng hồ</string>
-    <string name="settings_open_tracks_title">Mở Bài Hát</string>
     <string name="settings_reset_summary">Thiết lập lại các thiết Lập để mặc Định giá Trị</string>
     <string name="settings_activity_defaults_category">Hoạt động của Mặc định</string>
     <string name="settings_units_category">Đơn vị</string>

src/main/res/values-zh-rTW/strings.xml

@@ -323,7 +323,6 @@ limitations under the License.
     <string name="sensor_state_power_avg">平均功率</string>
     <string name="sensor_could_not_scan">無法掃描藍牙裝置 (錯誤 %1$i).</string>
     <string name="bluetooth_disabled">請啟用藍芽。</string>
-    <string name="settings_open_tracks_title">Open Tracks</string>
     <string name="settings_open_tracks_summary">所有關於 OpenTracks 專案</string>
     <string name="settings_defaults_title">預設單位與活動</string>
     <string name="settings_defaults_summary">首選單位、預設活動、蹤跡預設名稱</string>

src/main/res/values-zh/strings.xml

@@ -579,7 +579,6 @@ limitations under the License.
     <string name="marker_add_photo_canceled">已取消，照片标记没有被添加</string>
     <string name="sensor_state_cadence_avg">平均步频</string>
     <string name="sensor_could_not_scan">无法扫描蓝牙设备（错误：%1$i）。</string>
-    <string name="settings_open_tracks_title">Open Tracks</string>
     <string name="settings_units_category">单位</string>
     <string name="settings_recording_customize_layout_select_columns">每行数据字段数</string>
     <string name="settings_announcements_average_heart_rate">平均心率</string>

src/main/res/values/settings.xml

@@ -11,8 +11,6 @@
     <bool name="stats_fullscreen_while_recording_default" translatable="false">false</bool>
 
     <!-- Main settings -->
-    <string name="settings_open_tracks_key" translatable="false">settingsOpenTracks</string>
-
     <string name="settings_defaults_key" translatable="false">settingsDefaults</string>
 
     <string name="settings_ui_key" translatable="false">settingsUI</string>

src/main/res/values/strings.xml

@@ -210,12 +210,12 @@ limitations under the License.
     <string name="export_cannot_write_to_dir">Cannot write to export directory.</string>
     <string name="export_dir_not_writable">" (not writable!)"</string>
     <string name="export_progress_message">Exporting to %1$s&#8230;</string>
-    <string name="export_track_already_exists_msg">The track %1$s already exists at the destination directory.</string>
+    <string name="export_track_already_exists_msg">The file %1$s already exists at the destination directory.</string>
     <string name="export_all_do_it_for_all">do it for all conflicts</string>
-    <string name="export_track_errors">Tracks not exported</string>
-    <string name="export_progress_summary_new_msg">New tracks exported</string>
-    <string name="export_progress_summary_overwrite_msg">Tracks overwritten</string>
-    <string name="export_progress_summary_skip_msg">Tracks skipped</string>
+    <string name="export_track_errors">Files not exported</string>
+    <string name="export_progress_summary_new_msg">New files exported</string>
+    <string name="export_progress_summary_overwrite_msg">Files overwritten</string>
+    <string name="export_progress_summary_skip_msg">Files skipped</string>
     <string name="export_progress_summary_errors_msg">Errors</string>
     <!-- External Storage -->
     <!-- Generic -->
@@ -297,7 +297,8 @@ limitations under the License.
     <string name="menu_aggregated_statistics">Aggregated stats</string>
     <string name="menu_delete">Delete</string>
     <string name="menu_edit">Edit</string>
-    <string name="menu_export_all">Export all</string>
+    <string name="menu_export_all">Export all (one file per track)</string>
+    <string name="menu_export_all_one_file">Export all (one file for all tracks)</string>
     <string name="menu_help">Help</string>
     <string name="menu_import_all">Import all</string>
     <string name="menu_insert_marker">Insert marker</string>
@@ -336,7 +337,6 @@ limitations under the License.
     <string name="sensor_could_not_scan">Could not scan for Bluetooth devices (error %1$i).</string>
     <string name="bluetooth_disabled">Please enable Bluetooth.</string>
 
-    <string name="settings_open_tracks_title">Open Tracks</string>
     <string name="settings_open_tracks_summary">All About OpenTracks Project</string>
 
     <string name="settings_defaults_title">Default Units and Activity</string>

src/main/res/xml/settings.xml

@@ -54,12 +54,15 @@
         android:icon="@drawable/ic_baseline_api_24"
         android:key="@string/settings_api_key"
         android:summary="@string/settings_api_summary"
-        android:title="@string/settings_api_title"/>
+        android:title="@string/settings_api_title" />
 
     <Preference
         android:icon="@drawable/ic_baseline_info_24"
-        android:key="@string/settings_open_tracks_key"
         android:summary="@string/settings_open_tracks_summary"
-        android:title="@string/settings_open_tracks_title" />
+        android:title="@string/about_preference_title">
+        <intent
+            android:targetClass="de.dennisguse.opentracks.AboutActivity"
+            android:targetPackage="@string/applicationId" />
+    </Preference>
 
 </PreferenceScreen>

src/main/res/xml/settings_import_export.xml

@@ -26,6 +26,13 @@
                 android:targetClass="de.dennisguse.opentracks.io.file.importer.DirectoryChooserActivity$ExportDirectoryChooserActivity"
                 android:targetPackage="@string/applicationId" />
         </Preference>
+        <Preference
+            android:key="@string/settings_export"
+            android:title="@string/menu_export_all_one_file">
+            <intent
+                android:targetClass="de.dennisguse.opentracks.io.file.importer.DirectoryChooserActivity$ExportDirectoryChooserOneFileActivity"
+                android:targetPackage="@string/applicationId" />
+        </Preference>
         <Preference
             android:key="@string/settings_default_export_directory_key"
             android:title="@string/settings_default_export_uri_title">
@@ -48,5 +55,4 @@
             android:title="@string/settings_export_filename_title"
             android:defaultValue="@string/export_filename_format_default" />
     </PreferenceCategory>
-
 </PreferenceScreen>

src/main/res/xml/settings_open_tracks.xml

@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
-    android:title="@string/settings_open_tracks_title">
-
-    <Preference android:title="@string/menu_help">
-        <intent
-            android:targetClass="de.dennisguse.opentracks.HelpActivity"
-            android:targetPackage="@string/applicationId" />
-    </Preference>
-    <Preference android:title="@string/about_preference_title">
-        <intent
-            android:targetClass="de.dennisguse.opentracks.AboutActivity"
-            android:targetPackage="@string/applicationId" />
-    </Preference>
-
-</PreferenceScreen>