Aggregated statistics by activity type. Fixes #112.

.idea/misc.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

src/androidTest/java/de/dennisguse/opentracks/viewmodels/AggregatedStatisticsTest.java

@@ -0,0 +1,257 @@
+package de.dennisguse.opentracks.viewmodels;
+
+import android.content.Context;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+import de.dennisguse.opentracks.R;
+import de.dennisguse.opentracks.content.data.Track;
+import de.dennisguse.opentracks.stats.TrackStatistics;
+import de.dennisguse.opentracks.util.TrackIconUtils;
+
+@RunWith(JUnit4.class)
+public class AggregatedStatisticsTest {
+
+    private final Context context = ApplicationProvider.getApplicationContext();
+
+    /**
+     * Create a TrackStatistics object.
+     *
+     * @param totalDistance distance in meters.
+     * @param totalTime     total time in milliseconds.
+     * @return TrackStatistics object.
+     */
+    private static Track createTrack(Context context, long totalDistance, long totalTime, String category) {
+        TrackStatistics statistics = new TrackStatistics();
+        statistics.setStartTime_ms(1000L);  // Resulting start time
+        statistics.setStopTime_ms(1000L + totalTime);
+        statistics.setTotalTime(totalTime);
+        statistics.setMovingTime(totalTime);
+        statistics.setTotalDistance(totalDistance);
+        statistics.setTotalElevationGain(50.0);
+        statistics.setMaxSpeed(50.0);  // Resulting max speed
+        statistics.setMaxElevation(1250.0);
+        statistics.setMinElevation(1200.0);  // Resulting min elevation
+
+        Track track = new Track();
+        track.setIcon(TrackIconUtils.getIconValue(context, category));
+        track.setCategory(category);
+        track.setTrackStatistics(statistics);
+        return track;
+    }
+
+    @Test
+    public void testAggregate() {
+        // given
+        // 10km in 40 minutes.
+        long totalDistance = 10000;
+        long totalTime = 2400000;
+        String biking = context.getString(R.string.activity_type_biking);
+        Track track = createTrack(context, totalDistance, totalTime, biking);
+
+        // when
+        AggregatedStatistics aggregatedStatistics = new AggregatedStatistics();
+        aggregatedStatistics.aggregate(track);
+
+        // then
+        Assert.assertEquals(1, aggregatedStatistics.getCount());
+        Assert.assertTrue(aggregatedStatistics.get(biking) != null);
+        Assert.assertEquals(1, aggregatedStatistics.get(biking).getCountTracks());
+
+        TrackStatistics statistics2 = aggregatedStatistics.get(biking).getTrackStatistics();
+        Assert.assertEquals(totalDistance, statistics2.getTotalDistance(), 0);
+        Assert.assertEquals(totalTime, statistics2.getMovingTime());
+    }
+
+    @Test
+    public void testAggregate_mountainBiking() {
+        // given
+        // 10km in 40 minutes.
+        long totalDistance = 10000;
+        long totalTime = 2400000;
+        String mountainBiking = context.getString(R.string.activity_type_mountain_biking);
+        Track track = createTrack(context, totalDistance, totalTime, mountainBiking);
+
+        // when
+        AggregatedStatistics aggregatedStatistics = new AggregatedStatistics();
+        aggregatedStatistics.aggregate(track);
+
+        // then
+        Assert.assertTrue(aggregatedStatistics.get(mountainBiking) != null);
+    }
+
+    @Test
+    public void testAggregate_trailRunning() {
+        // given
+        // 10km in 40 minutes.
+        long totalDistance = 10000;
+        long totalTime = 2400000;
+        String trailRunning = context.getString(R.string.activity_type_trail_running);
+        Track track = createTrack(context, totalDistance, totalTime, trailRunning);
+
+        // when
+        AggregatedStatistics aggregatedStatistics = new AggregatedStatistics();
+        aggregatedStatistics.aggregate(track);
+
+        // then
+        Assert.assertTrue(aggregatedStatistics.get(trailRunning) != null);
+    }
+
+    @Test
+    public void testAggregate_twoBikingTracks() {
+        // given
+        // 10km in 40 minutes.
+        long totalDistance = 10000;
+        long totalTime = 2400000;
+        String biking = context.getString(R.string.activity_type_biking);
+        Track[] tracks = new Track[2];
+        for (int i = 0; i < 2; i++) {
+            tracks[i] = createTrack(context, totalDistance, totalTime, biking);
+        }
+
+        // when
+        AggregatedStatistics aggregatedStatistics = new AggregatedStatistics();
+        aggregatedStatistics.aggregate(tracks[0]); // biking activity 1.
+        aggregatedStatistics.aggregate(tracks[1]); // biking activity 2.
+
+        // then
+        Assert.assertEquals(1, aggregatedStatistics.getCount());
+        Assert.assertTrue(aggregatedStatistics.get(biking) != null);
+        Assert.assertEquals(2, aggregatedStatistics.get(biking).getCountTracks());
+
+        TrackStatistics statistics2 = aggregatedStatistics.get(biking).getTrackStatistics();
+        Assert.assertEquals(totalDistance * 2, statistics2.getTotalDistance(), 0);
+        Assert.assertEquals(totalTime * 2L, statistics2.getMovingTime());
+    }
+
+    @Test
+    public void testAggregate_threeDifferentTracks() {
+        // given
+        // 10km in 40 minutes.
+        long totalDistance = 10000;
+
+        String biking = context.getString(R.string.activity_type_biking);
+        String running = context.getString(R.string.activity_type_running);
+        String walking = context.getString(R.string.activity_type_walking);
+        long totalTime = 2400000;
+        Track[] tracks = new Track[]{
+                createTrack(context, totalDistance, totalTime, biking),
+                createTrack(context, totalDistance, totalTime, running),
+                createTrack(context, totalDistance, totalTime, walking)
+        };
+
+        // when
+        AggregatedStatistics aggregatedStatistics = new AggregatedStatistics();
+        aggregatedStatistics.aggregate(tracks[0]); // biking activity 1.
+        aggregatedStatistics.aggregate(tracks[1]); // biking activity 2.
+        aggregatedStatistics.aggregate(tracks[2]); // biking activity 3.
+
+        // then
+        Assert.assertEquals(3, aggregatedStatistics.getCount());
+        Assert.assertTrue(aggregatedStatistics.get(biking) != null);
+        Assert.assertTrue(aggregatedStatistics.get(running) != null);
+        Assert.assertTrue(aggregatedStatistics.get(walking) != null);
+        Assert.assertEquals(1, aggregatedStatistics.get(biking).getCountTracks());
+        Assert.assertEquals(1, aggregatedStatistics.get(running).getCountTracks());
+        Assert.assertEquals(1, aggregatedStatistics.get(walking).getCountTracks());
+
+        {
+            TrackStatistics statistics2 = aggregatedStatistics.get(biking).getTrackStatistics();
+            Assert.assertEquals(totalDistance, statistics2.getTotalDistance(), 0);
+            Assert.assertEquals(totalTime, statistics2.getMovingTime());
+        }
+
+        {
+            TrackStatistics statistics2 = aggregatedStatistics.get(running).getTrackStatistics();
+            Assert.assertEquals(totalDistance, statistics2.getTotalDistance(), 0);
+            Assert.assertEquals(totalTime, statistics2.getMovingTime());
+        }
+
+        {
+            TrackStatistics statistics2 = aggregatedStatistics.get(walking).getTrackStatistics();
+            Assert.assertEquals(totalDistance, statistics2.getTotalDistance(), 0);
+            Assert.assertEquals(totalTime, statistics2.getMovingTime());
+        }
+    }
+
+    @Test
+    public void testAggregate_severalTracksWithSeveralActivities() {
+        // given
+        // 10km in 40 minutes.
+        long totalDistance = 10000;
+        long totalTime = 2400000;
+        String biking = context.getString(R.string.activity_type_biking);
+        String running = context.getString(R.string.activity_type_running);
+        String walking = context.getString(R.string.activity_type_walking);
+        String driving = context.getString(R.string.activity_type_driving);
+        Track[] tracks = new Track[]{
+                createTrack(context, totalDistance, totalTime, biking),
+                createTrack(context, totalDistance, totalTime, running),
+                createTrack(context, totalDistance, totalTime, walking),
+                createTrack(context, totalDistance, totalTime, biking),
+                createTrack(context, totalDistance, totalTime, running),
+                createTrack(context, totalDistance, totalTime, walking),
+                createTrack(context, totalDistance, totalTime, biking),
+                createTrack(context, totalDistance, totalTime, biking),
+                createTrack(context, totalDistance, totalTime, biking),
+                createTrack(context, totalDistance, totalTime, driving),
+        };
+
+
+        // when
+        AggregatedStatistics aggregatedStatistics = new AggregatedStatistics();
+        for (Track track : tracks) {
+            aggregatedStatistics.aggregate(track);
+
+        }
+
+        // then
+        // 4 sports.
+        Assert.assertEquals(4, aggregatedStatistics.getCount());
+
+        // There is a map for every sport.
+        Assert.assertTrue(aggregatedStatistics.get(biking) != null);
+        Assert.assertTrue(aggregatedStatistics.get(running) != null);
+        Assert.assertTrue(aggregatedStatistics.get(walking) != null);
+        Assert.assertTrue(aggregatedStatistics.get(driving) != null);
+
+        // Number of tracks by sport.
+        Assert.assertEquals(5, aggregatedStatistics.get(biking).getCountTracks()); // Biking.
+        Assert.assertEquals(2, aggregatedStatistics.get(running).getCountTracks()); // Running.
+        Assert.assertEquals(2, aggregatedStatistics.get(walking).getCountTracks()); // Walking.
+        Assert.assertEquals(1, aggregatedStatistics.get(driving).getCountTracks()); // Driving.
+
+        // Biking.
+        {
+            TrackStatistics statistics2 = aggregatedStatistics.get(biking).getTrackStatistics();
+            Assert.assertEquals(totalDistance * 5, statistics2.getTotalDistance(), 0);
+            Assert.assertEquals(totalTime * 5, statistics2.getMovingTime());
+        }
+
+        // Running.
+        {
+            TrackStatistics statistics2 = aggregatedStatistics.get(running).getTrackStatistics();
+            Assert.assertEquals(totalDistance * 2, statistics2.getTotalDistance(), 0);
+            Assert.assertEquals(totalTime * 2, statistics2.getMovingTime());
+        }
+
+        // Walking.
+        {
+            TrackStatistics statistics2 = aggregatedStatistics.get(walking).getTrackStatistics();
+            Assert.assertEquals(totalDistance * 2, statistics2.getTotalDistance(), 0);
+            Assert.assertEquals(totalTime * 2, statistics2.getMovingTime());
+        }
+
+        // Driving.
+        {
+            TrackStatistics statistics2 = aggregatedStatistics.get(driving).getTrackStatistics();
+            Assert.assertEquals(totalDistance, statistics2.getTotalDistance(), 0);
+            Assert.assertEquals(totalTime, statistics2.getMovingTime());
+        }
+    }
+}

src/main/AndroidManifest.xml

@@ -98,6 +98,11 @@ limitations under the License.
                 android:value=".SearchListActivity" />
         </activity>
 
+        <activity
+            android:name=".AggregatedStatisticsActivity"
+            android:screenOrientation="userPortrait"
+            android:label="@string/menu_aggregated_statistics"/>
+
         <activity
             android:name=".io.file.exporter.ExportActivity"
             android:theme="@style/ThemeCustomTransparent" />

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

@@ -0,0 +1,41 @@
+package de.dennisguse.opentracks;
+
+import android.os.Bundle;
+import android.widget.ListView;
+
+import androidx.lifecycle.Observer;
+import androidx.lifecycle.ViewModelProvider;
+
+import de.dennisguse.opentracks.adapters.AggregatedStatisticsAdapter;
+import de.dennisguse.opentracks.viewmodels.AggregatedStatistics;
+import de.dennisguse.opentracks.viewmodels.AggregatedStatisticsModel;
+
+public class AggregatedStatisticsActivity extends AbstractActivity {
+
+    private ListView listView;
+    private AggregatedStatisticsAdapter adapter;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        listView = findViewById(R.id.aggregated_stats_list);
+
+        final AggregatedStatisticsModel viewModel = new ViewModelProvider(this).get(AggregatedStatisticsModel.class);
+        viewModel.getAggregatedStats().observe(this, new Observer<AggregatedStatistics>() {
+            @Override
+            public void onChanged(AggregatedStatistics aggregatedStatistics) {
+                if (aggregatedStatistics != null) {
+                    adapter = new AggregatedStatisticsAdapter(getApplicationContext(), aggregatedStatistics);
+                    listView.setAdapter(adapter);
+                }
+                adapter.notifyDataSetChanged();
+            }
+        });
+    }
+
+    @Override
+    protected int getLayoutResId() {
+        return R.layout.aggregated_stats;
+    }
+}

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

@@ -396,6 +396,10 @@ public class TrackListActivity extends AbstractListActivity implements ConfirmDe
                     this.invalidateOptionsMenu();
                 }
                 return true;
+            case R.id.track_list_aggregated_stats:
+                intent = IntentUtils.newIntent(this, AggregatedStatisticsActivity.class);
+                startActivity(intent);
+                return true;
             case R.id.track_list_markers:
                 intent = IntentUtils.newIntent(this, MarkerListActivity.class);
                 startActivity(intent);

src/main/java/de/dennisguse/opentracks/adapters/AggregatedStatisticsAdapter.java

@@ -0,0 +1,181 @@
+package de.dennisguse.opentracks.adapters;
+
+import android.content.Context;
+import android.util.Pair;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import de.dennisguse.opentracks.R;
+import de.dennisguse.opentracks.util.PreferencesUtils;
+import de.dennisguse.opentracks.util.StringUtils;
+import de.dennisguse.opentracks.util.TrackIconUtils;
+import de.dennisguse.opentracks.viewmodels.AggregatedStatistics;
+
+public class AggregatedStatisticsAdapter extends BaseAdapter {
+
+    private AggregatedStatistics aggregatedStatistics;
+    private Context context;
+
+    public AggregatedStatisticsAdapter(Context context, AggregatedStatistics aggregatedStatistics) {
+        this.context = context;
+        this.aggregatedStatistics = aggregatedStatistics;
+    }
+
+    @Override
+    public int getCount() {
+        if (aggregatedStatistics != null) {
+            return aggregatedStatistics.getCount();
+        }
+        return 0;
+    }
+
+    @Override
+    public AggregatedStatistics.AggregatedStatistic getItem(int position) {
+        return aggregatedStatistics.getItem(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        // Not important because data are not database register but cooked data.
+        return position;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        AggregatedStatistics.AggregatedStatistic aggregatedStats = getItem(position);
+        ViewHolder viewHolder;
+
+        if (isSpeedSport(position)) {
+            viewHolder = new ViewSpeedHolder();
+        } else {
+            viewHolder = new ViewPaceHolder();
+        }
+
+        convertView = LayoutInflater.from(context).inflate(R.layout.aggregated_stats_list_item, parent, false);
+        viewHolder.setValues(convertView, getIcon(position), getName(position), aggregatedStats);
+
+        return convertView;
+    }
+
+    private boolean isSpeedSport(int position) {
+        String category = aggregatedStatistics.getSportName(position);
+        return TrackIconUtils.isSpeedIcon(context, category);
+    }
+
+    private int getIcon(int position) {
+        String iconValue = TrackIconUtils.getIconValue(context, aggregatedStatistics.getSportName(position));
+        return TrackIconUtils.getIconDrawable(iconValue);
+    }
+
+    private String getName(int position) {
+        return aggregatedStatistics.getSportName(position);
+    }
+
+    private class ViewHolder {
+        protected ImageView sportIcon;
+        protected TextView typeLabel;
+        protected TextView numTracks;
+        protected TextView distance;
+        protected TextView distanceUnit;
+        protected TextView time;
+        protected boolean metricsUnits;
+
+        public ViewHolder() {
+            metricsUnits = PreferencesUtils.isMetricUnits(context);
+        }
+
+        public void setValues(View view, int iconDrawable, String name, AggregatedStatistics.AggregatedStatistic aggregatedStats) {
+            sportIcon = view.findViewById(R.id.aggregated_stats_sport_icon);
+            typeLabel = view.findViewById(R.id.aggregated_stats_type_label);
+            numTracks = view.findViewById(R.id.aggregated_stats_num_tracks);
+            distance = view.findViewById(R.id.aggregated_stats_distance);
+            distanceUnit = view.findViewById(R.id.aggregated_stats_distance_unit);
+            time = view.findViewById(R.id.aggregated_stats_time);
+
+            sportIcon.setImageResource(iconDrawable);
+            typeLabel.setText(name);
+            numTracks.setText(StringUtils.valueInParentheses(String.valueOf(aggregatedStats.getCountTracks())));
+
+            Pair<String, String> parts = StringUtils.getDistanceParts(context, aggregatedStats.getTrackStatistics().getTotalDistance(), metricsUnits);
+            distance.setText(parts.first);
+            distanceUnit.setText(parts.second);
+
+            time.setText(StringUtils.formatElapsedTime(aggregatedStats.getTrackStatistics().getMovingTime()));
+        }
+    }
+
+    private class ViewSpeedHolder extends ViewHolder {
+        private TextView avgSpeed;
+        private TextView avgSpeedUnit;
+        private TextView avgSpeedLabel;
+        private TextView maxSpeed;
+        private TextView maxSpeedUnit;
+        private TextView maxSpeedLabel;
+
+        @Override
+        public void setValues(View view, int iconDrawable, String name, AggregatedStatistics.AggregatedStatistic aggregatedStats) {
+            super.setValues(view, iconDrawable, name, aggregatedStats);
+
+            avgSpeed = view.findViewById(R.id.aggregated_stats_avg_rate);
+            avgSpeedUnit = view.findViewById(R.id.aggregated_stats_avg_rate_unit);
+            avgSpeedLabel = view.findViewById(R.id.aggregated_stats_avg_rate_label);
+            maxSpeed = view.findViewById(R.id.aggregated_stats_max_rate);
+            maxSpeedUnit = view.findViewById(R.id.aggregated_stats_max_rate_unit);
+            maxSpeedLabel = view.findViewById(R.id.aggregated_stats_max_rate_label);
+
+            {
+                Pair<String, String> parts = StringUtils.getSpeedParts(context, aggregatedStats.getTrackStatistics().getAverageMovingSpeed(), metricsUnits, true);
+                avgSpeed.setText(parts.first);
+                avgSpeedUnit.setText(parts.second);
+                avgSpeedLabel.setText(context.getString(R.string.stats_average_moving_speed));
+            }
+
+            {
+                Pair<String, String> parts = StringUtils.getSpeedParts(context, aggregatedStats.getTrackStatistics().getMaxSpeed(), metricsUnits, true);
+                maxSpeed.setText(parts.first);
+                maxSpeedUnit.setText(parts.second);
+                maxSpeedLabel.setText(context.getString(R.string.stats_max_speed));
+            }
+        }
+    }
+
+    private class ViewPaceHolder extends ViewHolder {
+        private TextView avgPace;
+        private TextView avgPaceUnit;
+        private TextView avgPaceLabel;
+        private TextView maxPace;
+        private TextView maxPaceUnit;
+        private TextView maxPaceLabel;
+
+        @Override
+        public void setValues(View view, int iconDrawable, String name, AggregatedStatistics.AggregatedStatistic aggregatedStats) {
+            super.setValues(view, iconDrawable, name, aggregatedStats);
+
+            avgPace = view.findViewById(R.id.aggregated_stats_avg_rate);
+            avgPaceUnit = view.findViewById(R.id.aggregated_stats_avg_rate_unit);
+            avgPaceLabel = view.findViewById(R.id.aggregated_stats_avg_rate_label);
+
+            maxPace = view.findViewById(R.id.aggregated_stats_max_rate);
+            maxPaceUnit = view.findViewById(R.id.aggregated_stats_max_rate_unit);
+            maxPaceLabel = view.findViewById(R.id.aggregated_stats_max_rate_label);
+
+            {
+                Pair<String, String> parts = StringUtils.getSpeedParts(context, aggregatedStats.getTrackStatistics().getAverageMovingSpeed(), metricsUnits, false);
+                avgPace.setText(parts.first);
+                avgPaceUnit.setText(parts.second);
+                avgPaceLabel.setText(R.string.stats_average_moving_pace);
+            }
+
+            {
+                Pair<String, String> parts = StringUtils.getSpeedParts(context, aggregatedStats.getTrackStatistics().getMaxSpeed(), metricsUnits, false);
+                maxPace.setText(parts.first);
+                maxPaceUnit.setText(parts.second);
+                maxPaceLabel.setText(R.string.stats_fastest_pace);
+            }
+        }
+    }
+}

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

@@ -426,4 +426,8 @@ public class StringUtils {
         }
         return new Pair<>(value, unit);
     }
+
+    public static String valueInParentheses(String text) {
+        return "(" + text + ")";
+    }
 }

src/main/java/de/dennisguse/opentracks/viewmodels/AggregatedStatistics.java

@@ -0,0 +1,74 @@
+package de.dennisguse.opentracks.viewmodels;
+
+import android.content.Context;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+import de.dennisguse.opentracks.content.data.Track;
+import de.dennisguse.opentracks.stats.TrackStatistics;
+import de.dennisguse.opentracks.util.TrackIconUtils;
+
+public class AggregatedStatistics {
+
+    private HashMap<String, AggregatedStatistic> aggregatedStatistics = new HashMap<>();
+
+    public void aggregate(List<Track> tracks) {
+        for (Track track : tracks) {
+            aggregate(track);
+        }
+    }
+
+    public void aggregate(Track track) {
+        String category = track.getCategory();
+        if (aggregatedStatistics.containsKey(category)) {
+            aggregatedStatistics.get(category).add(track.getTrackStatistics());
+        } else {
+            aggregatedStatistics.put(category, new AggregatedStatistic(track.getTrackStatistics()));
+        }
+    }
+
+    public int getCount() {
+        return aggregatedStatistics.size();
+    }
+
+    public String getSportName(int position) {
+        return getKey(position);
+    }
+
+    public AggregatedStatistic get(String category) {
+        return aggregatedStatistics.get(category);
+    }
+
+    private String getKey(int position) {
+        return (new ArrayList<>(aggregatedStatistics.keySet())).get(position);
+    }
+
+    public AggregatedStatistic getItem(int position) {
+        return (new ArrayList<>(aggregatedStatistics.values())).get(position);
+    }
+
+    public static class AggregatedStatistic {
+        private TrackStatistics trackStatistics;
+        private int countTracks;
+
+        public AggregatedStatistic(TrackStatistics trackStatistics) {
+            this.trackStatistics = trackStatistics;
+            this.countTracks = 1;
+        }
+
+        public TrackStatistics getTrackStatistics() {
+            return trackStatistics;
+        }
+
+        public int getCountTracks() {
+            return countTracks;
+        }
+
+        void add(TrackStatistics statistics) {
+            trackStatistics.merge(statistics);
+            countTracks++;
+        }
+    }
+}

src/main/java/de/dennisguse/opentracks/viewmodels/AggregatedStatisticsModel.java

@@ -0,0 +1,42 @@
+package de.dennisguse.opentracks.viewmodels;
+
+import android.app.Application;
+
+import androidx.annotation.NonNull;
+import androidx.lifecycle.AndroidViewModel;
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+
+import java.util.List;
+
+import de.dennisguse.opentracks.content.data.Track;
+import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
+
+public class AggregatedStatisticsModel extends AndroidViewModel {
+
+    private MutableLiveData<AggregatedStatistics> aggregatedStats;
+
+    public AggregatedStatisticsModel(@NonNull Application application) {
+        super(application);
+    }
+
+    public LiveData<AggregatedStatistics> getAggregatedStats() {
+        if (aggregatedStats == null) {
+            aggregatedStats = new MutableLiveData<>();
+            loadAggregatedStats();
+        }
+        return aggregatedStats;
+    }
+
+    private void loadAggregatedStats() {
+        new Thread(() -> {
+            ContentProviderUtils contentProviderUtils = new ContentProviderUtils(getApplication().getApplicationContext());
+            List<Track> tracks = contentProviderUtils.getAllTracks();
+
+            AggregatedStatistics aggregatedStatistics = new AggregatedStatistics();
+            aggregatedStatistics.aggregate(tracks);
+
+            aggregatedStats.postValue(aggregatedStatistics);
+        }).start();
+    }
+}

src/main/res/drawable/ic_statistics_24dp.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M19,3L5,3c-1.1,0 -2,0.9 -2,2v14c0,1.1 0.9,2 2,2h14c1.1,0 2,-0.9 2,-2L21,5c0,-1.1 -0.9,-2 -2,-2zM9,17L7,17v-7h2v7zM13,17h-2L11,7h2v10zM17,17h-2v-4h2v4z"/>
+</vector>

src/main/res/layout/aggregated_stats.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <include layout="@layout/toolbar" />
+
+    <ListView
+        android:id="@+id/aggregated_stats_list"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1.0" />
+</LinearLayout>

src/main/res/layout/aggregated_stats_list_item.xml

@@ -0,0 +1,150 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingBottom="24dp">
+
+    <!-- Guidelines -->
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/guideline1"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:orientation="vertical"
+        app:layout_constraintGuide_begin="8dp" />
+
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/guideline2"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:orientation="vertical"
+        app:layout_constraintGuide_percent="0.5" />
+
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/guideline3"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:orientation="vertical"
+        app:layout_constraintGuide_end="8dp" />
+
+    <!-- Icon and sport name -->
+    <ImageView
+        android:id="@+id/aggregated_stats_sport_icon"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="16dp"
+        android:layout_marginTop="16dp"
+        app:layout_constraintLeft_toLeftOf="@id/guideline1"
+        app:layout_constraintTop_toTopOf="parent"
+        app:srcCompat="@drawable/ic_activity_bike_24dp" />
+
+    <TextView
+        android:id="@+id/aggregated_stats_type_label"
+        style="@style/StatsLargeLabel"
+        android:layout_marginTop="0dp"
+        android:layout_marginBottom="0dp"
+        app:layout_constraintBottom_toBottomOf="@+id/aggregated_stats_sport_icon"
+        app:layout_constraintLeft_toRightOf="@+id/aggregated_stats_sport_icon"
+        app:layout_constraintTop_toTopOf="@+id/aggregated_stats_sport_icon"
+        tools:text="@string/activity_type_cycling"
+        android:layout_marginLeft="16dp" />
+
+    <TextView
+        android:id="@+id/aggregated_stats_num_tracks"
+        style="@style/StatsLargeLabel"
+        android:layout_marginTop="0dp"
+        android:layout_marginBottom="0dp"
+        app:layout_constraintBottom_toBottomOf="@+id/aggregated_stats_type_label"
+        app:layout_constraintLeft_toRightOf="@+id/aggregated_stats_type_label"
+        app:layout_constraintTop_toTopOf="@+id/aggregated_stats_type_label"
+        tools:text="(1)"
+        android:layout_marginLeft="4dp" />
+
+    <!-- Distance -->
+    <TextView
+        android:id="@+id/aggregated_stats_distance"
+        style="@style/StatsLargeValue"
+        app:layout_constraintLeft_toLeftOf="@id/guideline1"
+        app:layout_constraintTop_toBottomOf="@+id/aggregated_stats_sport_icon"
+        tools:text="100000"
+        android:layout_marginLeft="16dp"
+        android:layout_marginTop="16dp" />
+
+    <TextView
+        android:id="@+id/aggregated_stats_distance_unit"
+        style="@style/StatsUnit"
+        android:textColor="@android:color/white"
+        app:layout_constraintBottom_toBottomOf="@+id/aggregated_stats_distance"
+        app:layout_constraintLeft_toRightOf="@+id/aggregated_stats_distance"
+        tools:text="km" />
+
+    <!-- Time -->
+    <TextView
+        android:id="@+id/aggregated_stats_time"
+        style="@style/StatsLargeValue"
+        app:layout_constraintRight_toRightOf="@id/guideline3"
+        app:layout_constraintTop_toBottomOf="@+id/aggregated_stats_sport_icon"
+        tools:text="00:00:00"
+        android:layout_marginRight="16dp"
+        android:layout_marginTop="16dp" />
+
+    <!-- Avg. rate -->
+    <TextView
+        android:id="@+id/aggregated_stats_avg_rate"
+        style="@style/StatsSmallValue"
+        app:layout_constraintHorizontal_chainStyle="packed"
+        app:layout_constraintTop_toBottomOf="@id/aggregated_stats_distance"
+        app:layout_constraintLeft_toRightOf="@id/guideline1"
+        app:layout_constraintRight_toLeftOf="@+id/aggregated_stats_avg_rate_unit"
+        android:layout_marginTop="24dp"
+        tools:text="30" />
+
+    <TextView
+        android:id="@+id/aggregated_stats_avg_rate_unit"
+        style="@style/StatsUnit"
+        android:textColor="@android:color/white"
+        app:layout_constraintBottom_toBottomOf="@+id/aggregated_stats_avg_rate"
+        app:layout_constraintLeft_toRightOf="@+id/aggregated_stats_avg_rate"
+        app:layout_constraintRight_toRightOf="@id/guideline2"
+        tools:text="km/h" />
+
+    <TextView
+        android:id="@+id/aggregated_stats_avg_rate_label"
+        style="@style/StatsTinyLabel"
+        app:layout_constrainedWidth="true"
+        app:layout_constraintTop_toBottomOf="@+id/aggregated_stats_avg_rate"
+        app:layout_constraintLeft_toRightOf="@id/guideline1"
+        app:layout_constraintRight_toRightOf="@id/guideline2"
+        tools:text="@string/stats_average_moving_speed" />
+
+    <!-- Max. rate -->
+    <TextView
+        android:id="@+id/aggregated_stats_max_rate"
+        style="@style/StatsSmallValue"
+        app:layout_constraintHorizontal_chainStyle="packed"
+        app:layout_constraintTop_toBottomOf="@id/aggregated_stats_time"
+        app:layout_constraintLeft_toRightOf="@id/guideline2"
+        app:layout_constraintRight_toLeftOf="@+id/aggregated_stats_max_rate_unit"
+        android:layout_marginTop="24dp"
+        tools:text="70" />
+
+    <TextView
+        android:id="@+id/aggregated_stats_max_rate_unit"
+        style="@style/StatsUnit"
+        android:textColor="@android:color/white"
+        app:layout_constraintBottom_toBottomOf="@+id/aggregated_stats_max_rate"
+        app:layout_constraintLeft_toRightOf="@+id/aggregated_stats_max_rate"
+        app:layout_constraintRight_toLeftOf="@id/guideline3"
+        tools:text="km/h" />
+
+    <TextView
+        android:id="@+id/aggregated_stats_max_rate_label"
+        style="@style/StatsTinyLabel"
+        app:layout_constrainedWidth="true"
+        app:layout_constraintTop_toBottomOf="@+id/aggregated_stats_max_rate"
+        app:layout_constraintLeft_toRightOf="@id/guideline2"
+        app:layout_constraintRight_toLeftOf="@id/guideline3"
+        tools:text="@string/stats_max_speed" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

src/main/res/menu/track_list.xml

@@ -28,6 +28,11 @@ limitations under the License.
         android:title="@string/menu_start_gps"
         android:visible="false"
         app:showAsAction="ifRoom" />
+    <item
+        android:id="@+id/track_list_aggregated_stats"
+        android:icon="@drawable/ic_statistics_24dp"
+        android:title="@string/menu_aggregated_statistics"
+        app:showAsAction="ifRoom" />
     <item
         android:id="@+id/track_list_markers"
         android:icon="@drawable/ic_marker_show_24dp"

src/main/res/values/styles.xml

@@ -195,6 +195,13 @@ limitations under the License.
         <item name="android:singleLine">true</item>
         <item name="android:textColor">@android:color/white</item>
     </style>
+    <!-- stats small label -->
+    <style name="StatsTinyLabel" parent="@style/TextSmall">
+        <item name="android:gravity">center</item>
+        <item name="android:layout_gravity">center</item>
+        <item name="android:singleLine">false</item>
+        <item name="android:textColor">@android:color/secondary_text_light_nodisable</item>
+    </style>
     <!-- stats small value container -->
     <style name="StatsSmallValueContainer" parent="@style/StatsLargeValueContainer">
         <item name="android:layout_marginTop">-2dp</item>