Cleanup.

drawable-svg/ic_arrow_long.svg

@@ -17,7 +17,7 @@
         <rdf:RDF>
             <cc:Work rdf:about="">
                 <dc:format>image/svg+xml</dc:format>
-                <dc:title></dc:title>
+                <dc:title />
                 <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
             </cc:Work>
         </rdf:RDF>

drawable-svg/ic_button_pause.svg

@@ -43,7 +43,7 @@
         <rdf:RDF>
             <cc:Work rdf:about="">
                 <dc:format>image/svg+xml</dc:format>
-                <dc:title></dc:title>
+                <dc:title />
                 <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
             </cc:Work>
         </rdf:RDF>

drawable-svg/ic_button_pause_pressed.svg

@@ -41,7 +41,7 @@
         <rdf:RDF>
             <cc:Work rdf:about="">
                 <dc:format>image/svg+xml</dc:format>
-                <dc:title></dc:title>
+                <dc:title />
                 <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
             </cc:Work>
         </rdf:RDF>

drawable-svg/ic_button_record.svg

@@ -33,7 +33,7 @@
         <rdf:RDF>
             <cc:Work rdf:about="">
                 <dc:format>image/svg+xml</dc:format>
-                <dc:title></dc:title>
+                <dc:title />
                 <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
             </cc:Work>
         </rdf:RDF>

drawable-svg/ic_button_stop.svg

@@ -39,7 +39,7 @@
         <rdf:RDF>
             <cc:Work rdf:about="">
                 <dc:format>image/svg+xml</dc:format>
-                <dc:title></dc:title>
+                <dc:title />
                 <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
             </cc:Work>
         </rdf:RDF>

drawable-svg/ic_track_paused.svg

@@ -18,7 +18,7 @@
         <rdf:RDF>
             <cc:Work rdf:about="">
                 <dc:format>image/svg+xml</dc:format>
-                <dc:title></dc:title>
+                <dc:title />
                 <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
             </cc:Work>
         </rdf:RDF>

drawable-svg/ic_track_recording.svg

@@ -21,7 +21,7 @@
         <rdf:RDF>
             <cc:Work rdf:about="">
                 <dc:format>image/svg+xml</dc:format>
-                <dc:title></dc:title>
+                <dc:title />
                 <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
             </cc:Work>
         </rdf:RDF>

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

@@ -74,8 +74,7 @@ public class MarkerListActivity extends AbstractActivity implements DeleteMarker
      * Note that sharedPreferenceChangeListener cannot be an anonymous inner
      * class. Anonymous inner class will get garbage collected.
      */
-    private final OnSharedPreferenceChangeListener
-            sharedPreferenceChangeListener = new OnSharedPreferenceChangeListener() {
+    private final OnSharedPreferenceChangeListener sharedPreferenceChangeListener = new OnSharedPreferenceChangeListener() {
         @Override
         public void onSharedPreferenceChanged(SharedPreferences preferences, String key) {
             // Note that the key can be null
@@ -166,6 +165,7 @@ public class MarkerListActivity extends AbstractActivity implements DeleteMarker
                 String category = cursor.getString(categoryIndex);
                 String description = cursor.getString(descriptionIndex);
                 String photoUrl = cursor.getString(photoUrlIndex);
+                //TODO also show latitude and longitude in list
                 double latitude = cursor.getDouble(latitudeIndex);
                 double longitude = cursor.getDouble(longitudeIndex);
 
@@ -244,7 +244,7 @@ public class MarkerListActivity extends AbstractActivity implements DeleteMarker
     }
 
     @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
+    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
         if (track != null && item.getItemId() == R.id.marker_list_insert_marker) {
             Intent intent = IntentUtils.newIntent(this, MarkerEditActivity.class)
                     .putExtra(MarkerEditActivity.EXTRA_TRACK_ID, track.getId());

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

@@ -117,10 +117,8 @@ public class TrackDetailActivity extends AbstractListActivity implements ChooseA
             });
         }
     };
-    /*
-     * Note that sharedPreferenceChangeListener cannot be an anonymous inner
-     * class. Anonymous inner class will get garbage collected.
-     */
+
+    // Note that sharedPreferenceChangeListener cannot be an anonymous inner class. Anonymous inner class will get garbage collected.
     private final OnSharedPreferenceChangeListener sharedPreferenceChangeListener = new OnSharedPreferenceChangeListener() {
         @Override
         public void onSharedPreferenceChanged(SharedPreferences preferences, String key) {

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

@@ -23,8 +23,6 @@ import android.graphics.Paint.Align;
 import android.graphics.Paint.Style;
 import android.graphics.Path;
 
-import androidx.annotation.VisibleForTesting;
-
 import java.text.NumberFormat;
 
 import de.dennisguse.opentracks.stats.ExtremityMonitor;
@@ -203,7 +201,6 @@ class ChartValueSeries {
     /**
      * Gets the interval value.
      */
-    @VisibleForTesting
     int getInterval() {
         return interval;
     }
@@ -218,7 +215,6 @@ class ChartValueSeries {
     /**
      * Gets the max marker value.
      */
-    @VisibleForTesting
     int getMaxMarkerValue() {
         return maxMarkerValue;
     }

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

@@ -37,6 +37,7 @@ import androidx.core.view.GestureDetectorCompat;
 
 import java.text.NumberFormat;
 import java.util.ArrayList;
+import java.util.List;
 
 import de.dennisguse.opentracks.MarkerDetailActivity;
 import de.dennisguse.opentracks.R;
@@ -86,8 +87,8 @@ public class ChartView extends View {
     }
 
     private final ChartValueSeries[] series = new ChartValueSeries[NUM_SERIES];
-    private final ArrayList<double[]> chartData = new ArrayList<>();
-    private final ArrayList<Waypoint> waypoints = new ArrayList<>();
+    private final List<double[]> chartData = new ArrayList<>();
+    private final List<Waypoint> waypoints = new ArrayList<>();
     private final ExtremityMonitor xExtremityMonitor = new ExtremityMonitor();
     private final Paint axisPaint;
     private final Paint xAxisMarkerPaint;
@@ -146,7 +147,7 @@ public class ChartView extends View {
         @Override
         public boolean onSingleTapConfirmed(MotionEvent event) {
             // Check if the y event is within markerHeight of the marker center
-            if (Math.abs(event.getY() - topBorder - spacer - markerHeight / 2) < markerHeight) {
+            if (Math.abs(event.getY() - topBorder - spacer - markerHeight / 2f) < markerHeight) {
                 int minDistance = Integer.MAX_VALUE;
                 Waypoint nearestWaypoint = null;
                 synchronized (waypoints) {
@@ -324,8 +325,7 @@ public class ChartView extends View {
     public void addDataPoints(ArrayList<double[]> dataPoints) {
         synchronized (chartData) {
             chartData.addAll(dataPoints);
-            for (int i = 0; i < dataPoints.size(); i++) {
-                double[] dataPoint = dataPoints.get(i);
+            for (double[] dataPoint : dataPoints) {
                 xExtremityMonitor.update(dataPoint[0]);
                 for (int j = 0; j < series.length; j++) {
                     if (!Double.isNaN(dataPoint[j + 1])) {
@@ -537,9 +537,9 @@ public class ChartView extends View {
      */
     private void drawGrid(Canvas canvas) {
         // X axis grid
-        ArrayList<Double> xAxisMarkerPositions = getXAxisMarkerPositions(getXAxisInterval());
-        for (int i = 0; i < xAxisMarkerPositions.size(); i++) {
-            int x = getX(xAxisMarkerPositions.get(i));
+        List<Double> xAxisMarkerPositions = getXAxisMarkerPositions(getXAxisInterval());
+        for (double position : xAxisMarkerPositions) {
+            int x = getX(position);
             canvas.drawLine(x, topBorder, x, topBorder + effectiveHeight, gridPaint);
         }
         // Y axis grid
@@ -611,7 +611,7 @@ public class ChartView extends View {
         canvas.drawText(label, x + effectiveWidth + spacer, y + yOffset, axisPaint);
 
         double interval = getXAxisInterval();
-        ArrayList<Double> markerPositions = getXAxisMarkerPositions(interval);
+        List<Double> markerPositions = getXAxisMarkerPositions(interval);
         NumberFormat numberFormat = interval < 1 ? X_FRACTION_FORMAT : X_NUMBER_FORMAT;
         for (int i = 0; i < markerPositions.size(); i++) {
             drawXAxisMarker(canvas, markerPositions.get(i), numberFormat, spacer + yOffset);
@@ -664,8 +664,8 @@ public class ChartView extends View {
     /**
      * Gets the x axis marker positions.
      */
-    private ArrayList<Double> getXAxisMarkerPositions(double interval) {
-        ArrayList<Double> markers = new ArrayList<>();
+    private List<Double> getXAxisMarkerPositions(double interval) {
+        List<Double> markers = new ArrayList<>();
         markers.add(0d);
         for (int i = 1; i * interval < maxX; i++) {
             markers.add(i * interval);
@@ -775,8 +775,7 @@ public class ChartView extends View {
     private void drawPaths() {
         boolean[] hasMoved = new boolean[series.length];
 
-        for (int i = 0; i < chartData.size(); i++) {
-            double[] dataPoint = chartData.get(i);
+        for (double[] dataPoint : chartData) {
             for (int j = 0; j < series.length; j++) {
                 double value = dataPoint[j + 1];
                 if (Double.isNaN(value)) {

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

@@ -5,8 +5,8 @@ public final class SensorDataSet {
     public static final float DATA_UNAVAILABLE = Float.NaN;
 
     //TODO It might be necessary to consider: if sensor was connected as well.
-    public String sensorName;
-    public String sensorAddress;
+    private String sensorName;
+    private String sensorAddress;
     private float heartRate;
     private float cadence;
     private float power;

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

@@ -146,7 +146,7 @@ public enum TrackFileFormat {
         }
 
         public TrackExporter newTrackExporter(Context context, Track[] tracks, TrackExporterListener trackExporterListener) {
-            return newKmzTrackExporter(context, this.newTrackWriter(context, tracks.length > 1), tracks, trackExporterListener, exportPhotos);
+            return newKmzTrackExporter(context, newTrackWriter(context, tracks.length > 1), tracks, trackExporterListener, exportPhotos);
         }
 
         public String getExtension() {
@@ -188,7 +188,7 @@ public enum TrackFileFormat {
 
     public TrackExporter newTrackExporter(Context context, Track[] tracks, TrackExporterListener trackExporterListener) {
         ContentProviderUtils contentProviderUtils = new ContentProviderUtils(context);
-        TrackWriter trackWriter = this.newTrackWriter(context, tracks.length > 1);
+        TrackWriter trackWriter = newTrackWriter(context, tracks.length > 1);
         return new FileTrackExporter(contentProviderUtils, trackWriter, tracks, trackExporterListener);
     }
 

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

@@ -536,8 +536,7 @@ public class TrackRecordingService extends Service {
     }
 
     /**
-     * Common code for starting a new track, resuming a track, or restarting after
-     * phone reboot.
+     * Common code for starting a new track, resuming a track, or restarting after phone reboot.
      *
      * @param trackStarted true if track is started, false if track is resumed
      */
@@ -597,7 +596,7 @@ public class TrackRecordingService extends Service {
                 contentProviderUtils.updateTrack(track);
             }
         }
-        endRecording(true, trackId);
+        endRecording(true);
     }
 
     /**
@@ -625,7 +624,7 @@ public class TrackRecordingService extends Service {
             insertLocation(track, pause, null);
         }
 
-        endRecording(false, recordingTrackId);
+        endRecording(false);
 
         notificationManager.updateContent(getString(R.string.generic_paused));
     }
@@ -634,9 +633,8 @@ public class TrackRecordingService extends Service {
      * Common code for ending a track or pausing a track.
      *
      * @param trackStopped true if track is stopped, false if track is paused
-     * @param trackId      the track id
      */
-    private void endRecording(boolean trackStopped, long trackId) {
+    private void endRecording(boolean trackStopped) {
         // Shutdown periodic tasks
         voiceExecutor.shutdown();
 

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

@@ -40,7 +40,7 @@ public class BluetoothLeAdapter extends BaseAdapter {
             LayoutInflater inflater = LayoutInflater.from(parent.getContext());
             //TODO Check if there is a better way to achieve identical look and feel to ListPreference.
             //Use material design single choice; for old style use: android.R.layout.select_dialog_singlechoice
-            currentView = inflater.inflate(androidx.appcompat.R.layout.select_dialog_singlechoice_material, null);
+            currentView = inflater.inflate(androidx.appcompat.R.layout.select_dialog_singlechoice_material, parent);
         }
 
         Device device = devices.get(position);

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

@@ -86,7 +86,7 @@ public class PreferencesUtils {
      * Compares if keyId and key belong to the same shared preference key.
      *
      * @param keyId The resource id of the key
-     * @param key
+     * @param key The key of the preference
      * @return true if key == null or key belongs to keyId
      */
     public static boolean isKey(Context context, int keyId, String key) {
@@ -316,7 +316,6 @@ public class PreferencesUtils {
     }
 
     public static int getRecordingDistanceInterval(Context context) {
-        final int RECORDING_DISTANCE_INTERVAL = Integer.parseInt(context.getResources().getString(R.string.recording_distance_interval_default));
         return PreferencesUtils.getInt(context, R.string.recording_distance_interval_key, getRecordingDistanceIntervalDefault(context));
     }
 

src/main/res/layout/marker_detail_fragment.xml

@@ -17,55 +17,50 @@ limitations under the License.
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+    <ImageView
+        android:id="@+id/marker_detail_waypoint_photo"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@android:color/black"
+        android:contentDescription="@string/image_photo_marker"
+        android:scaleType="fitCenter" />
+
     <FrameLayout
         android:layout_width="match_parent"
-        android:layout_height="match_parent">
-
+        android:layout_height="wrap_content">
+        <!-- A gradient on top of the text -->
         <ImageView
-            android:id="@+id/marker_detail_waypoint_photo"
+            android:id="@+id/marker_detail_waypoint_text_gradient"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            android:background="@android:color/black"
+            android:alpha=".6"
             android:contentDescription="@string/image_photo_marker"
-            android:scaleType="fitCenter" />
+            android:src="@drawable/text_gradient" />
 
-        <FrameLayout
+        <LinearLayout
+            android:id="@+id/marker_detail_waypoint_info"
             android:layout_width="match_parent"
-            android:layout_height="wrap_content">
-            <!-- A gradient on top of the text -->
-            <ImageView
-                android:id="@+id/marker_detail_waypoint_text_gradient"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:alpha=".6"
-                android:contentDescription="@string/image_photo_marker"
-                android:src="@drawable/text_gradient" />
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="80dp"
+            android:orientation="vertical"
+            android:padding="8dp">
 
-            <LinearLayout
-                android:id="@+id/marker_detail_waypoint_info"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginBottom="80dp"
-                android:orientation="vertical"
-                android:padding="8dp">
+            <TextView
+                android:id="@+id/marker_detail_waypoint_name"
+                style="@style/TextMedium"
+                android:paddingTop="8dp" />
 
-                <TextView
-                    android:id="@+id/marker_detail_waypoint_name"
-                    style="@style/TextMedium"
-                    android:paddingTop="8dp" />
+            <TextView
+                android:id="@+id/marker_detail_waypoint_category"
+                style="@style/TextSmall" />
 
-                <TextView
-                    android:id="@+id/marker_detail_waypoint_category"
-                    style="@style/TextSmall" />
+            <TextView
+                android:id="@+id/marker_detail_waypoint_description"
+                style="@style/TextSmall" />
 
-                <TextView
-                    android:id="@+id/marker_detail_waypoint_description"
-                    style="@style/TextSmall" />
-
-                <TextView
-                    android:id="@+id/marker_detail_waypoint_location"
-                    style="@style/TextSmall" />
-            </LinearLayout>
-        </FrameLayout>
+            <TextView
+                android:id="@+id/marker_detail_waypoint_location"
+                style="@style/TextSmall" />
+        </LinearLayout>
     </FrameLayout>
 </FrameLayout>

src/main/res/values/dimens.xml

@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?><!--
-Copyright 2012 Google Inc.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-     http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
--->
-<resources>
-    <dimen name="widget_margin">0dp</dimen>
-</resources>

src/main/res/values/settings_deprecated.xml

@@ -1,23 +1,23 @@
 <?xml version="1.0" encoding="utf-8"?>
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools">
     <!-- This file contains old and now unused settings. -->
     <!-- It is recommended not to reuse the keys. -->
 
-    <string name="chart_x_axis_key" translatable="false">chartXAxis</string>
-    <string name="chart_x_axis_default" translatable="false">@string/chart_x_axis_distance</string>
-    <string-array name="chart_x_axis_values">
+    <string name="chart_x_axis_key" translatable="false" tools:keep="@string/chart_x_axis_key">chartXAxis</string>
+    <string name="chart_x_axis_default" translatable="false" tools:keep="@string/chart_x_axis_default">@string/chart_x_axis_distance</string>
+    <string-array name="chart_x_axis_values" tools:keep="@array/chart_x_axis_values">
         <item>@string/chart_x_axis_distance</item>
         <item>@string/chart_x_axis_time</item>
     </string-array>
-    <string name="chart_x_axis_time" translatable="false">TIME</string>
-    <string name="chart_x_axis_distance" translatable="false">DISTANCE</string>
-    <string-array name="chart_x_axis_options">
+    <string name="chart_x_axis_time" translatable="false" tools:keep="@string/chart_x_axis_time">TIME</string>
+    <string name="chart_x_axis_distance" translatable="false" tools:keep="@string/chart_x_axis_distance">DISTANCE</string>
+    <string-array name="chart_x_axis_options" tools:keep="@array/chart_x_axis_options">
         <item>@string/settings_chart_by_distance</item>
         <item>@string/settings_chart_by_time</item>
     </string-array>
 
-    <string name="split_frequency_key" translatable="false">splitFrequency</string>
-    <string name="split_frequency_default" translatable="false">@string/frequency_off</string>
+    <string name="split_frequency_key" translatable="false" tools:keep="@string/split_frequency_key">splitFrequency</string>
+    <string name="split_frequency_default" translatable="false" tools:keep="@string/split_frequency_default">@string/frequency_off</string>
     <string name="voice_frequency_key" translatable="false">voiceFrequency</string>
     <string name="voice_frequency_default" translatable="false">@string/frequency_off</string>
     <string name="frequency_off" translatable="false">0</string>