diff --git a/app/build.gradle b/app/build.gradle
index 7b89c50..c204660 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -77,7 +77,7 @@ dependencies {
     implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.9.8'
 
     // Upload to OSM
-    implementation ('de.westnordost:osmapi-traces:1.0')
+    implementation('de.westnordost:osmapi-traces:1.0')
     configurations {
         compile.exclude group: 'net.sf.kxml', module: 'kxml2' // already included in Android
     }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 2bfbb15..1a28426 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -32,17 +31,20 @@
 
     <application
         android:allowBackup="true"
+        android:appCategory="productivity"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
-        android:appCategory="productivity"
         tools:ignore="GoogleAppIndexingWarning">
-        <activity android:name=".activity.ShowWorkoutMapActivity"
-            android:screenOrientation="portrait"></activity>
-        <activity android:name=".activity.ShowWorkoutMapDiagramActivity"
-            android:screenOrientation="portrait"></activity>
+
+        <activity
+            android:name=".activity.ShowWorkoutMapActivity"
+            android:screenOrientation="portrait" />
+        <activity
+            android:name=".activity.ShowWorkoutMapDiagramActivity"
+            android:screenOrientation="portrait" />
         <activity android:name=".activity.SettingsActivity" />
         <activity
             android:name=".activity.ShowWorkoutActivity"
diff --git a/app/src/main/java/de/tadris/fitness/Instance.java b/app/src/main/java/de/tadris/fitness/Instance.java
index 889fc8c..e1bda28 100644
--- a/app/src/main/java/de/tadris/fitness/Instance.java
+++ b/app/src/main/java/de/tadris/fitness/Instance.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -36,7 +36,7 @@ import de.tadris.fitness.util.unit.UnitUtils;
 
 public class Instance {
 
-    public static final String DATABASE_NAME= "fito-track";
+    private static final String DATABASE_NAME = "fito-track";
 
     private static Instance instance;
 
@@ -47,9 +47,9 @@ public class Instance {
         return instance;
     }
 
-    public AppDatabase db;
-    public List<LocationListener.LocationChangeListener> locationChangeListeners= new ArrayList<>();
-    public UserPreferences userPreferences;
+    public final AppDatabase db;
+    public final List<LocationListener.LocationChangeListener> locationChangeListeners = new ArrayList<>();
+    public final UserPreferences userPreferences;
 
     public boolean pressureAvailable= false;
     public float lastPressure= 0;
diff --git a/app/src/main/java/de/tadris/fitness/activity/FitoTrackActivity.java b/app/src/main/java/de/tadris/fitness/activity/FitoTrackActivity.java
index fc2bb79..d523c92 100644
--- a/app/src/main/java/de/tadris/fitness/activity/FitoTrackActivity.java
+++ b/app/src/main/java/de/tadris/fitness/activity/FitoTrackActivity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -36,14 +36,13 @@ import de.tadris.fitness.R;
 abstract public class FitoTrackActivity extends Activity {
 
 
-
-    protected int getThemePrimaryColor() {
+    int getThemePrimaryColor() {
         final TypedValue value = new TypedValue ();
         getTheme().resolveAttribute (android.R.attr.colorPrimary, value, true);
         return value.data;
     }
 
-    protected void shareFile(Uri uri){
+    void shareFile(Uri uri) {
         Intent intentShareFile = new Intent(Intent.ACTION_SEND);
         intentShareFile.setDataAndType(uri, getContentResolver().getType(uri));
         intentShareFile.putExtra(Intent.EXTRA_STREAM, uri);
@@ -56,11 +55,11 @@ abstract public class FitoTrackActivity extends Activity {
         try {
             Log.d("Export", new BufferedInputStream(getContentResolver().openInputStream(uri)).toString());
         } catch (FileNotFoundException e) {
-
+            e.printStackTrace();
         }
     }
 
-    protected void showErrorDialog(Exception e, @StringRes int title, @StringRes int message){
+    void showErrorDialog(Exception e, @StringRes int title, @StringRes int message) {
         new AlertDialog.Builder(this)
                 .setTitle(title)
                 .setMessage(getString(message) + "\n\n" + e.getMessage())
diff --git a/app/src/main/java/de/tadris/fitness/activity/LauncherActivity.java b/app/src/main/java/de/tadris/fitness/activity/LauncherActivity.java
index ee54979..2bd9ae9 100644
--- a/app/src/main/java/de/tadris/fitness/activity/LauncherActivity.java
+++ b/app/src/main/java/de/tadris/fitness/activity/LauncherActivity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -42,12 +42,12 @@ public class LauncherActivity extends Activity {
         new Handler().postDelayed(this::init, 100);
     }
 
-    void init(){
+    private void init() {
         Instance.getInstance(this);
         start();
     }
 
-    void start(){
+    private void start() {
         startActivity(new Intent(this, ListWorkoutsActivity.class));
         finish();
         overridePendingTransition(R.anim.fade_in, R.anim.stay);
diff --git a/app/src/main/java/de/tadris/fitness/activity/ListWorkoutsActivity.java b/app/src/main/java/de/tadris/fitness/activity/ListWorkoutsActivity.java
index 337c562..4e0703d 100644
--- a/app/src/main/java/de/tadris/fitness/activity/ListWorkoutsActivity.java
+++ b/app/src/main/java/de/tadris/fitness/activity/ListWorkoutsActivity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -46,7 +46,7 @@ public class ListWorkoutsActivity extends Activity implements WorkoutAdapter.Wor
     private RecyclerView.Adapter adapter;
     private RecyclerView.LayoutManager layoutManager;
     private FloatingActionMenu menu;
-    Workout[] workouts;
+    private Workout[] workouts;
 
 
     @Override
@@ -95,7 +95,7 @@ public class ListWorkoutsActivity extends Activity implements WorkoutAdapter.Wor
         }
     }
 
-    public void startRecording(String activity){
+    private void startRecording(String activity) {
         menu.close(true);
         RecordWorkoutActivity.ACTIVITY= activity;
         final Intent intent= new Intent(this, RecordWorkoutActivity.class);
@@ -148,10 +148,9 @@ public class ListWorkoutsActivity extends Activity implements WorkoutAdapter.Wor
     public boolean onOptionsItemSelected(MenuItem item) {
         int id = item.getItemId();
 
-        switch (id){
-            case R.id.actionOpenSettings:
-                startActivity(new Intent(this, SettingsActivity.class));
-                return true;
+        if (id == R.id.actionOpenSettings) {
+            startActivity(new Intent(this, SettingsActivity.class));
+            return true;
         }
 
         return super.onOptionsItemSelected(item);
diff --git a/app/src/main/java/de/tadris/fitness/activity/RecordWorkoutActivity.java b/app/src/main/java/de/tadris/fitness/activity/RecordWorkoutActivity.java
index 84b7993..5edd3c6 100644
--- a/app/src/main/java/de/tadris/fitness/activity/RecordWorkoutActivity.java
+++ b/app/src/main/java/de/tadris/fitness/activity/RecordWorkoutActivity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -66,20 +66,21 @@ public class RecordWorkoutActivity extends FitoTrackActivity implements Location
 
     public static String ACTIVITY= Workout.WORKOUT_TYPE_RUNNING;
 
-    MapView mapView;
-    TileDownloadLayer downloadLayer;
-    WorkoutRecorder recorder;
-    Polyline polyline;
-    List<LatLong> latLongList= new ArrayList<>();
-    InfoViewHolder[] infoViews= new InfoViewHolder[4];
-    TextView timeView, gpsStatusView;
-    View waitingForGPSOverlay;
-    boolean gpsFound= false;
-    boolean isResumed= false;
-    private Handler mHandler= new Handler();
-    PowerManager.WakeLock wakeLock;
-    Intent locationListener;
-    Intent pressureService;
+    private MapView mapView;
+    private TileDownloadLayer downloadLayer;
+    private WorkoutRecorder recorder;
+    private Polyline polyline;
+    private final List<LatLong> latLongList = new ArrayList<>();
+    private final InfoViewHolder[] infoViews = new InfoViewHolder[4];
+    private TextView timeView;
+    private TextView gpsStatusView;
+    private View waitingForGPSOverlay;
+    private boolean gpsFound = false;
+    private boolean isResumed = false;
+    private final Handler mHandler = new Handler();
+    private PowerManager.WakeLock wakeLock;
+    private Intent locationListener;
+    private Intent pressureService;
     private boolean saved= false;
 
     @Override
@@ -92,7 +93,7 @@ public class RecordWorkoutActivity extends FitoTrackActivity implements Location
 
         setupMap();
 
-        ((ViewGroup)findViewById(R.id.recordMapViewrRoot)).addView(mapView);
+        ((ViewGroup) findViewById(R.id.recordMapViewerRoot)).addView(mapView);
         waitingForGPSOverlay= findViewById(R.id.recorderWaitingOverlay);
         waitingForGPSOverlay.setVisibility(View.VISIBLE);
 
@@ -178,7 +179,7 @@ public class RecordWorkoutActivity extends FitoTrackActivity implements Location
         }).start();
     }
 
-    int i= 0;
+    private int i = 0;
 
     private void updateDescription(){
         i++;
@@ -235,14 +236,14 @@ public class RecordWorkoutActivity extends FitoTrackActivity implements Location
                 .create().show();
     }
 
-    void checkPermissions(){
+    private void checkPermissions() {
         if (!hasPermission()) {
             ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 10);
             ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, 10);
         }
     }
 
-    public boolean hasPermission(){
+    private boolean hasPermission() {
         return ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
                 || ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED;
     }
@@ -253,12 +254,12 @@ public class RecordWorkoutActivity extends FitoTrackActivity implements Location
         }
     }
 
-    public void stopListener(){
+    private void stopListener() {
         stopService(locationListener);
         stopService(pressureService);
     }
 
-    public void startListener(){
+    private void startListener() {
         if(locationListener == null){
             locationListener= new Intent(this, LocationListener.class);
             pressureService= new Intent(this, PressureService.class);
@@ -365,10 +366,11 @@ public class RecordWorkoutActivity extends FitoTrackActivity implements Location
         });
     }
 
-    public static class InfoViewHolder{
-        TextView titleView, valueView;
+    static class InfoViewHolder {
+        final TextView titleView;
+        final TextView valueView;
 
-        public InfoViewHolder(TextView titleView, TextView valueView) {
+        InfoViewHolder(TextView titleView, TextView valueView) {
             this.titleView = titleView;
             this.valueView = valueView;
         }
diff --git a/app/src/main/java/de/tadris/fitness/activity/SettingsActivity.java b/app/src/main/java/de/tadris/fitness/activity/SettingsActivity.java
index 0d94355..9d0befb 100644
--- a/app/src/main/java/de/tadris/fitness/activity/SettingsActivity.java
+++ b/app/src/main/java/de/tadris/fitness/activity/SettingsActivity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -48,6 +48,7 @@ import androidx.core.content.FileProvider;
 import java.io.BufferedInputStream;
 import java.io.File;
 import java.io.FileNotFoundException;
+import java.io.IOException;
 
 import de.tadris.fitness.R;
 import de.tadris.fitness.export.BackupController;
@@ -58,7 +59,7 @@ import de.tadris.fitness.view.ProgressDialogController;
 public class SettingsActivity extends PreferenceActivity {
 
 
-    protected void shareFile(Uri uri){
+    private void shareFile(Uri uri) {
         Intent intentShareFile = new Intent(Intent.ACTION_SEND);
         intentShareFile.setDataAndType(uri, getContentResolver().getType(uri));
         intentShareFile.putExtra(Intent.EXTRA_STREAM, uri);
@@ -71,7 +72,7 @@ public class SettingsActivity extends PreferenceActivity {
         try {
             Log.d("Export", new BufferedInputStream(getContentResolver().openInputStream(uri)).toString());
         } catch (FileNotFoundException e) {
-
+            e.printStackTrace();
         }
     }
 
@@ -89,7 +90,7 @@ public class SettingsActivity extends PreferenceActivity {
      * A preference value change listener that updates the preference's summary
      * to reflect its new value.
      */
-    private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = (preference, value) -> {
+    private static final Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = (preference, value) -> {
         String stringValue = value.toString();
 
         if (preference instanceof ListPreference) {
@@ -146,7 +147,7 @@ public class SettingsActivity extends PreferenceActivity {
                         .getString(preference.getKey(), ""));
     }
 
-    private Handler mHandler= new Handler();
+    private final Handler mHandler = new Handler();
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -160,21 +161,27 @@ public class SettingsActivity extends PreferenceActivity {
         bindPreferenceSummaryToValue(findPreference("unitSystem"));
         bindPreferenceSummaryToValue(findPreference("mapStyle"));
 
-        findPreference("weight").setOnPreferenceClickListener(preference -> showWeightPicker());
-        findPreference("import").setOnPreferenceClickListener(preference -> showImportDialog());
-        findPreference("export").setOnPreferenceClickListener(preference -> showExportDialog());
+        findPreference("weight").setOnPreferenceClickListener(preference -> {
+            showWeightPicker();
+            return true;
+        });
+        findPreference("import").setOnPreferenceClickListener(preference -> {
+            showImportDialog();
+            return true;
+        });
+        findPreference("export").setOnPreferenceClickListener(preference -> {
+            showExportDialog();
+            return true;
+        });
 
     }
 
-    private boolean showExportDialog(){
+    private void showExportDialog() {
         new AlertDialog.Builder(this)
                 .setTitle(R.string.exportData)
                 .setMessage(R.string.exportDataSummary)
                 .setNegativeButton(R.string.cancel, null)
-                .setPositiveButton(R.string.backup, (dialog, which) -> {
-                    exportBackup();
-                }).create().show();
-        return true;
+                .setPositiveButton(R.string.backup, (dialog, which) -> exportBackup()).create().show();
     }
 
     private void exportBackup(){
@@ -183,7 +190,9 @@ public class SettingsActivity extends PreferenceActivity {
         new Thread(() -> {
             try{
                 String file= getFilesDir().getAbsolutePath() + "/shared/backup.ftb";
-                new File(file).getParentFile().mkdirs();
+                if (!new File(file).getParentFile().mkdirs()) {
+                    throw new IOException("Cannot write");
+                }
                 Uri uri= FileProvider.getUriForFile(getBaseContext(), "de.tadris.fitness.fileprovider", new File(file));
 
                 BackupController backupController= new BackupController(getBaseContext(), new File(file), (progress, action) -> mHandler.post(() -> dialogController.setProgress(progress, action)));
@@ -203,28 +212,25 @@ public class SettingsActivity extends PreferenceActivity {
         }).start();
     }
 
-    private boolean showImportDialog(){
+    private void showImportDialog() {
         if(!hasPermission()){
             requestPermissions();
-            return true;
+            return;
         }
         new AlertDialog.Builder(this)
                 .setTitle(R.string.importBackup)
                 .setMessage(R.string.importBackupMessage)
                 .setNegativeButton(R.string.cancel, null)
-                .setPositiveButton(R.string.restore, (dialog, which) -> {
-                    importBackup();
-                }).create().show();
-        return true;
+                .setPositiveButton(R.string.restore, (dialog, which) -> importBackup()).create().show();
     }
 
-    void requestPermissions(){
+    private void requestPermissions() {
         if (!hasPermission()) {
             ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 10);
         }
     }
 
-    public boolean hasPermission(){
+    private boolean hasPermission() {
         return ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
     }
 
@@ -240,12 +246,10 @@ public class SettingsActivity extends PreferenceActivity {
 
     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
-        switch (requestCode) {
-            case FILE_SELECT_CODE:
-                if (resultCode == RESULT_OK){
-                    importBackup(data.getData());
-                }
-                break;
+        if (requestCode == FILE_SELECT_CODE) {
+            if (resultCode == RESULT_OK) {
+                importBackup(data.getData());
+            }
         }
         super.onActivityResult(requestCode, resultCode, data);
     }
@@ -270,7 +274,7 @@ public class SettingsActivity extends PreferenceActivity {
         }).start();
     }
 
-    private boolean showWeightPicker() {
+    private void showWeightPicker() {
         UnitUtils.setUnit(this); // Maybe the user changed unit system
 
         final AlertDialog.Builder d = new AlertDialog.Builder(this);
@@ -294,8 +298,6 @@ public class SettingsActivity extends PreferenceActivity {
         });
 
         d.create().show();
-
-        return true;
     }
 
     /**
@@ -309,11 +311,6 @@ public class SettingsActivity extends PreferenceActivity {
         }
     }
 
-    @Override
-    protected void onPause() {
-        super.onPause();
-    }
-
     @Override
     protected void onDestroy() {
         super.onDestroy();
diff --git a/app/src/main/java/de/tadris/fitness/activity/ShowWorkoutActivity.java b/app/src/main/java/de/tadris/fitness/activity/ShowWorkoutActivity.java
index b9a6c02..e4a5401 100644
--- a/app/src/main/java/de/tadris/fitness/activity/ShowWorkoutActivity.java
+++ b/app/src/main/java/de/tadris/fitness/activity/ShowWorkoutActivity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -20,8 +20,6 @@
 package de.tadris.fitness.activity;
 
 import android.app.AlertDialog;
-import android.app.Dialog;
-import android.content.DialogInterface;
 import android.content.Intent;
 import android.graphics.Typeface;
 import android.net.Uri;
@@ -34,11 +32,11 @@ import android.widget.CheckBox;
 import android.widget.EditText;
 import android.widget.Spinner;
 import android.widget.TextView;
-import android.widget.Toast;
 
 import androidx.core.content.FileProvider;
 
 import java.io.File;
+import java.io.IOException;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
@@ -116,13 +114,13 @@ public class ShowWorkoutActivity extends WorkoutActivity implements DialogUtils.
 
     }
 
-    void startDiagramActivity(String diagramType){
+    private void startDiagramActivity(String diagramType) {
         ShowWorkoutMapDiagramActivity.DIAGRAM_TYPE= diagramType;
         startActivity(new Intent(ShowWorkoutActivity.this, ShowWorkoutMapDiagramActivity.class));
     }
 
 
-    void openEditCommentDialog(final TextView change){
+    private void openEditCommentDialog(final TextView change) {
         final EditText editText= new EditText(this);
         editText.setText(workout.comment);
         editText.setSingleLine(true);
@@ -132,18 +130,18 @@ public class ShowWorkoutActivity extends WorkoutActivity implements DialogUtils.
                 .setView(editText).create().show();
     }
 
-    void changeComment(String comment, TextView onChange){
+    private void changeComment(String comment, TextView onChange) {
         workout.comment= comment;
         Instance.getInstance(this).db.workoutDao().updateWorkout(workout);
         onChange.setText(getString(R.string.comment) + ": " + workout.comment);
     }
 
-    String getDate(){
+    private String getDate() {
         return SimpleDateFormat.getDateInstance().format(new Date(workout.start));
     }
 
 
-    void addTitle(String title){
+    private void addTitle(String title) {
         TextView textView= new TextView(this);
         textView.setText(title);
         textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 20);
@@ -155,7 +153,7 @@ public class ShowWorkoutActivity extends WorkoutActivity implements DialogUtils.
         root.addView(textView);
     }
 
-    TextView addText(String text){
+    private TextView addText(String text) {
         TextView textView= new TextView(this);
         textView.setText(text);
         textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 20);
@@ -167,11 +165,11 @@ public class ShowWorkoutActivity extends WorkoutActivity implements DialogUtils.
         return textView;
     }
 
-    void addKeyValue(String key1, String value1){
+    private void addKeyValue(String key1, String value1) {
         addKeyValue(key1, value1, "", "");
     }
 
-    void addKeyValue(String key1, String value1, String key2, String value2){
+    private void addKeyValue(String key1, String value1, String key2, String value2) {
         View v= getLayoutInflater().inflate(R.layout.show_entry, root, false);
 
         TextView title1= v.findViewById(R.id.v1title);
@@ -211,13 +209,16 @@ public class ShowWorkoutActivity extends WorkoutActivity implements DialogUtils.
         new Thread(() -> {
             try{
                 String file= getFilesDir().getAbsolutePath() + "/shared/workout.gpx";
-                new File(file).getParentFile().mkdirs();
+                if (!new File(file).getParentFile().mkdirs()) {
+                    throw new IOException("Cannot write to " + file);
+                }
                 Uri uri= FileProvider.getUriForFile(getBaseContext(), "de.tadris.fitness.fileprovider", new File(file));
 
                 GpxExporter.exportWorkout(getBaseContext(), workout, new File(file));
                 dialogController.cancel();
                 mHandler.post(() -> shareFile(uri));
             }catch (Exception e){
+                e.printStackTrace();
                 mHandler.post(() -> showErrorDialog(e, R.string.error, R.string.errorGpxExportFailed));
             }
         }).start();
@@ -245,7 +246,7 @@ public class ShowWorkoutActivity extends WorkoutActivity implements DialogUtils.
         authentication.authenticateIfNecessary();
     }
 
-    AlertDialog dialog= null;
+    private AlertDialog dialog = null;
     private void showUploadOptions(){
         dialog= new AlertDialog.Builder(this)
                 .setTitle(R.string.actionUploadToOSM)
diff --git a/app/src/main/java/de/tadris/fitness/activity/WorkoutActivity.java b/app/src/main/java/de/tadris/fitness/activity/WorkoutActivity.java
index 6d14cfe..12f641e 100644
--- a/app/src/main/java/de/tadris/fitness/activity/WorkoutActivity.java
+++ b/app/src/main/java/de/tadris/fitness/activity/WorkoutActivity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -64,37 +64,40 @@ public abstract class WorkoutActivity extends FitoTrackActivity {
 
     public static Workout selectedWorkout;
 
-    protected List<WorkoutSample> samples;
-    protected Workout workout;
-    protected ViewGroup root;
-    protected Resources.Theme theme;
-    protected MapView map;
-    protected TileDownloadLayer downloadLayer;
-    protected FixedPixelCircle highlightingCircle;
-    protected Handler mHandler= new Handler();
+    List<WorkoutSample> samples;
+    Workout workout;
+    ViewGroup root;
+    private Resources.Theme theme;
+    MapView map;
+    private TileDownloadLayer downloadLayer;
+    private FixedPixelCircle highlightingCircle;
+    final Handler mHandler = new Handler();
 
-    protected LineChart speedDiagram, heightDiagram;
+    LineChart speedDiagram;
+    LineChart heightDiagram;
 
-    protected void initBeforeContent(){
+    void initBeforeContent() {
         workout= selectedWorkout;
         samples= Arrays.asList(Instance.getInstance(this).db.workoutDao().getAllSamplesOfWorkout(workout.id));
         setTheme(ThemeManager.getThemeByWorkout(workout));
     }
 
-    protected void initAfterContent(){
-        getActionBar().setDisplayHomeAsUpEnabled(true);
+    void initAfterContent() {
+        if (getActionBar() != null) {
+            getActionBar().setDisplayHomeAsUpEnabled(true);
+        }
         setTitle(WorkoutTypeCalculator.getType(workout));
 
         theme= getTheme();
     }
 
-    void addDiagram(SampleConverter converter){
+    private void addDiagram(SampleConverter converter) {
         root.addView(getDiagram(converter), new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, fullScreenItems ? ViewGroup.LayoutParams.MATCH_PARENT : getWindowManager().getDefaultDisplay().getWidth()*3/4));
     }
 
-    protected boolean diagramsInteractive= false;
+    boolean diagramsInteractive = false;
 
-    LineChart getDiagram(SampleConverter converter){
+    private LineChart getDiagram(SampleConverter converter) {
         LineChart chart= new LineChart(this);
 
         converter.onCreate();
@@ -145,7 +148,7 @@ public abstract class WorkoutActivity extends FitoTrackActivity {
         return chart;
     }
 
-    protected void onDiagramValueSelected(LatLong latLong){
+    private void onDiagramValueSelected(LatLong latLong) {
         Paint p= AndroidGraphicFactory.INSTANCE.createPaint();
         p.setColor(0xff693cff);
         highlightingCircle= new FixedPixelCircle(latLong, 20, p, null);
@@ -166,7 +169,7 @@ public abstract class WorkoutActivity extends FitoTrackActivity {
         void afterAdd(LineChart chart);
     }
 
-    WorkoutSample findSample(SampleConverter converter, Entry entry){
+    private WorkoutSample findSample(SampleConverter converter, Entry entry) {
         for(WorkoutSample sample : samples){
             if(converter.compare(sample, entry)){
                 return sample;
@@ -251,8 +254,8 @@ public abstract class WorkoutActivity extends FitoTrackActivity {
         });
     }
 
-    protected boolean fullScreenItems = false;
-    protected LinearLayout mapRoot;
+    boolean fullScreenItems = false;
+    LinearLayout mapRoot;
 
     void addMap(){
         map= new MapView(this);
@@ -290,7 +293,7 @@ public abstract class WorkoutActivity extends FitoTrackActivity {
 
     }
 
-    int getMapHeight(){
+    private int getMapHeight() {
         return getWindowManager().getDefaultDisplay().getWidth()*3/4;
     }
 
diff --git a/app/src/main/java/de/tadris/fitness/data/UserPreferences.java b/app/src/main/java/de/tadris/fitness/data/UserPreferences.java
index 385be76..7fdb1f4 100644
--- a/app/src/main/java/de/tadris/fitness/data/UserPreferences.java
+++ b/app/src/main/java/de/tadris/fitness/data/UserPreferences.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -25,7 +25,7 @@ import android.preference.PreferenceManager;
 
 public class UserPreferences {
 
-    private SharedPreferences preferences;
+    private final SharedPreferences preferences;
 
     public UserPreferences(Context context) {
         this.preferences= PreferenceManager.getDefaultSharedPreferences(context);
diff --git a/app/src/main/java/de/tadris/fitness/export/BackupController.java b/app/src/main/java/de/tadris/fitness/export/BackupController.java
index 2c5edc9..dd7b7c1 100644
--- a/app/src/main/java/de/tadris/fitness/export/BackupController.java
+++ b/app/src/main/java/de/tadris/fitness/export/BackupController.java
@@ -1,3 +1,22 @@
+/*
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
+ *
+ * This file is part of FitoTrack
+ *
+ * FitoTrack is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     FitoTrack is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 package de.tadris.fitness.export;
 
 import android.content.Context;
@@ -17,11 +36,11 @@ import de.tadris.fitness.util.unit.UnitUtils;
 
 public class BackupController {
 
-    public static final int VERSION= 1;
+    private static final int VERSION = 1;
 
-    private Context context;
-    private File output;
-    private ExportStatusListener listener;
+    private final Context context;
+    private final File output;
+    private final ExportStatusListener listener;
     private UserPreferences preferences;
     private AppDatabase database;
 
diff --git a/app/src/main/java/de/tadris/fitness/export/FitoTrackDataContainer.java b/app/src/main/java/de/tadris/fitness/export/FitoTrackDataContainer.java
index bfdfb8a..2e25eac 100644
--- a/app/src/main/java/de/tadris/fitness/export/FitoTrackDataContainer.java
+++ b/app/src/main/java/de/tadris/fitness/export/FitoTrackDataContainer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -29,7 +29,7 @@ import de.tadris.fitness.data.WorkoutSample;
 
 @JacksonXmlRootElement(localName = "fito-track")
 @JsonIgnoreProperties(ignoreUnknown = true)
-public class FitoTrackDataContainer {
+class FitoTrackDataContainer {
 
     int version;
     List<Workout> workouts;
diff --git a/app/src/main/java/de/tadris/fitness/export/RestoreController.java b/app/src/main/java/de/tadris/fitness/export/RestoreController.java
index 6eeab3c..1ca0bda 100644
--- a/app/src/main/java/de/tadris/fitness/export/RestoreController.java
+++ b/app/src/main/java/de/tadris/fitness/export/RestoreController.java
@@ -1,3 +1,22 @@
+/*
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
+ *
+ * This file is part of FitoTrack
+ *
+ * FitoTrack is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     FitoTrack is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 package de.tadris.fitness.export;
 
 import android.annotation.SuppressLint;
@@ -18,11 +37,11 @@ import de.tadris.fitness.data.WorkoutSample;
 
 public class RestoreController {
 
-    private Context context;
-    private Uri input;
-    private ImportStatusListener listener;
+    private final Context context;
+    private final Uri input;
+    private final ImportStatusListener listener;
     private FitoTrackDataContainer dataContainer;
-    private AppDatabase database;
+    private final AppDatabase database;
 
     public RestoreController(Context context, Uri input, ImportStatusListener listener) {
         this.context = context;
@@ -98,8 +117,8 @@ public class RestoreController {
         void onStatusChanged(int progress, String action);
     }
 
-    public static class UnsupportedVersionException extends Exception{
-        public UnsupportedVersionException(String message) {
+    static class UnsupportedVersionException extends Exception {
+        UnsupportedVersionException(String message) {
             super(message);
         }
     }
diff --git a/app/src/main/java/de/tadris/fitness/map/WorkoutLayer.java b/app/src/main/java/de/tadris/fitness/map/WorkoutLayer.java
index 8afa936..a8b7051 100644
--- a/app/src/main/java/de/tadris/fitness/map/WorkoutLayer.java
+++ b/app/src/main/java/de/tadris/fitness/map/WorkoutLayer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -30,7 +30,7 @@ import de.tadris.fitness.data.WorkoutSample;
 
 public class WorkoutLayer extends Polyline {
 
-    public static Paint getDEFAULT_PAINT_STROKE(int color){
+    private static Paint getDEFAULT_PAINT_STROKE(int color) {
         Paint paint= AndroidGraphicFactory.INSTANCE.createPaint();
         paint.setStyle(Style.STROKE);
         paint.setColor(color);
@@ -38,13 +38,13 @@ public class WorkoutLayer extends Polyline {
         return paint;
     }
 
-    List<WorkoutSample> samples;
+    private final List<WorkoutSample> samples;
 
     public WorkoutLayer(List<WorkoutSample> samples, int color) {
         this(getDEFAULT_PAINT_STROKE(color), samples);
     }
 
-    public WorkoutLayer(Paint paintStroke, List<WorkoutSample> samples) {
+    private WorkoutLayer(Paint paintStroke, List<WorkoutSample> samples) {
         super(paintStroke, AndroidGraphicFactory.INSTANCE);
         this.samples = samples;
         init();
diff --git a/app/src/main/java/de/tadris/fitness/map/tilesource/FitoTrackTileSource.java b/app/src/main/java/de/tadris/fitness/map/tilesource/FitoTrackTileSource.java
index 89054b2..66e2cba 100644
--- a/app/src/main/java/de/tadris/fitness/map/tilesource/FitoTrackTileSource.java
+++ b/app/src/main/java/de/tadris/fitness/map/tilesource/FitoTrackTileSource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -23,7 +23,7 @@ import org.mapsforge.map.layer.download.tilesource.AbstractTileSource;
 
 public abstract class FitoTrackTileSource extends AbstractTileSource {
 
-    public FitoTrackTileSource(String[] hostNames, int port) {
+    FitoTrackTileSource(String[] hostNames, int port) {
         super(hostNames, port);
         defaultTimeToLive = 8279000;
     }
diff --git a/app/src/main/java/de/tadris/fitness/map/tilesource/HumanitarianTileSource.java b/app/src/main/java/de/tadris/fitness/map/tilesource/HumanitarianTileSource.java
index c447545..7a6bfa4 100644
--- a/app/src/main/java/de/tadris/fitness/map/tilesource/HumanitarianTileSource.java
+++ b/app/src/main/java/de/tadris/fitness/map/tilesource/HumanitarianTileSource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -26,7 +26,7 @@ import java.net.URL;
 
 public class HumanitarianTileSource extends FitoTrackTileSource {
 
-    public static HumanitarianTileSource INSTANCE= new HumanitarianTileSource(new String[]{"tile-a.openstreetmap.fr", "tile-b.openstreetmap.fr", "tile-c.openstreetmap.fr"}, 443);
+    public static final HumanitarianTileSource INSTANCE = new HumanitarianTileSource(new String[]{"tile-a.openstreetmap.fr", "tile-b.openstreetmap.fr", "tile-c.openstreetmap.fr"}, 443);
 
     private static final int PARALLEL_REQUESTS_LIMIT = 8;
     private static final String PROTOCOL = "https";
@@ -34,7 +34,7 @@ public class HumanitarianTileSource extends FitoTrackTileSource {
     private static final int ZOOM_LEVEL_MIN = 0;
     private static final String NAME = "Humanitarian";
 
-    public HumanitarianTileSource(String[] hostNames, int port) {
+    private HumanitarianTileSource(String[] hostNames, int port) {
         super(hostNames, port);
     }
 
diff --git a/app/src/main/java/de/tadris/fitness/map/tilesource/MapnikTileSource.java b/app/src/main/java/de/tadris/fitness/map/tilesource/MapnikTileSource.java
index 9ae1709..30dab49 100644
--- a/app/src/main/java/de/tadris/fitness/map/tilesource/MapnikTileSource.java
+++ b/app/src/main/java/de/tadris/fitness/map/tilesource/MapnikTileSource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -34,7 +34,7 @@ public class MapnikTileSource extends FitoTrackTileSource {
     private static final int ZOOM_LEVEL_MIN = 0;
     private static final String NAME = "OSM Mapnik";
 
-    public MapnikTileSource(String[] hostNames, int port) {
+    private MapnikTileSource(String[] hostNames, int port) {
         super(hostNames, port);
     }
 
diff --git a/app/src/main/java/de/tadris/fitness/map/tilesource/ThunderforestTileSource.java b/app/src/main/java/de/tadris/fitness/map/tilesource/ThunderforestTileSource.java
index e571be4..d238651 100644
--- a/app/src/main/java/de/tadris/fitness/map/tilesource/ThunderforestTileSource.java
+++ b/app/src/main/java/de/tadris/fitness/map/tilesource/ThunderforestTileSource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -26,7 +26,7 @@ import java.net.URL;
 
 public class ThunderforestTileSource extends FitoTrackTileSource{
 
-    public static final String API_KEY= "87b07337e42c405db6d8d39b1c0c179e";
+    private static final String API_KEY = "87b07337e42c405db6d8d39b1c0c179e";
 
     public static final ThunderforestTileSource OUTDOORS = new ThunderforestTileSource("outdoors", "Outdoor");
     public static final ThunderforestTileSource CYLE_MAP = new ThunderforestTileSource("cycle", "Cycle Map");
@@ -35,10 +35,10 @@ public class ThunderforestTileSource extends FitoTrackTileSource{
     private static final int ZOOM_LEVEL_MAX = 22;
     private static final int ZOOM_LEVEL_MIN = 0;
 
-    private String mapName;
-    private String name;
+    private final String mapName;
+    private final String name;
 
-    public ThunderforestTileSource(String mapName, String name) {
+    private ThunderforestTileSource(String mapName, String name) {
         super(new String[]{"tile.thunderforest.com"}, 443);
         this.mapName = mapName;
         this.name = name;
diff --git a/app/src/main/java/de/tadris/fitness/osm/GpsTraceLatLong.java b/app/src/main/java/de/tadris/fitness/osm/GpsTraceLatLong.java
index a16bff4..515bf5d 100644
--- a/app/src/main/java/de/tadris/fitness/osm/GpsTraceLatLong.java
+++ b/app/src/main/java/de/tadris/fitness/osm/GpsTraceLatLong.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -22,12 +22,12 @@ package de.tadris.fitness.osm;
 import de.tadris.fitness.data.WorkoutSample;
 import de.westnordost.osmapi.map.data.LatLon;
 
-public class GpsTraceLatLong implements LatLon {
+class GpsTraceLatLong implements LatLon {
 
     private final double latitude;
     private final double longitude;
 
-    public GpsTraceLatLong(double latitude, double longitude) {
+    private GpsTraceLatLong(double latitude, double longitude) {
         this.latitude = latitude;
         this.longitude = longitude;
     }
diff --git a/app/src/main/java/de/tadris/fitness/osm/OAuthAuthentication.java b/app/src/main/java/de/tadris/fitness/osm/OAuthAuthentication.java
index 2150ed6..7cad439 100644
--- a/app/src/main/java/de/tadris/fitness/osm/OAuthAuthentication.java
+++ b/app/src/main/java/de/tadris/fitness/osm/OAuthAuthentication.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -39,14 +39,14 @@ import oauth.signpost.exception.OAuthException;
 
 public class OAuthAuthentication {
 
-    private OAuthConsumer oAuthConsumer= OAuthUrlProvider.getDefaultConsumer();
-    private OAuthProvider oAuthProvider= OAuthUrlProvider.getDefaultProvider();
+    private final OAuthConsumer oAuthConsumer = OAuthUrlProvider.getDefaultConsumer();
+    private final OAuthProvider oAuthProvider = OAuthUrlProvider.getDefaultProvider();
 
-    private Handler handler;
-    private Activity activity;
-    private ProgressDialogController dialogController;
-    private SharedPreferences preferences;
-    private OAuthAuthenticationListener listener;
+    private final Handler handler;
+    private final Activity activity;
+    private final ProgressDialogController dialogController;
+    private final SharedPreferences preferences;
+    private final OAuthAuthenticationListener listener;
 
     public OAuthAuthentication(Handler handler, Activity activity, OAuthAuthenticationListener listener) {
         this.handler = handler;
diff --git a/app/src/main/java/de/tadris/fitness/osm/OAuthUrlProvider.java b/app/src/main/java/de/tadris/fitness/osm/OAuthUrlProvider.java
index 83a6401..19820a0 100644
--- a/app/src/main/java/de/tadris/fitness/osm/OAuthUrlProvider.java
+++ b/app/src/main/java/de/tadris/fitness/osm/OAuthUrlProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -24,7 +24,7 @@ import oauth.signpost.OAuthProvider;
 import oauth.signpost.basic.DefaultOAuthConsumer;
 import oauth.signpost.basic.DefaultOAuthProvider;
 
-public class OAuthUrlProvider {
+class OAuthUrlProvider {
 
     static private final String CONSUMER_KEY= "jFL9grFmAo5ZS720YDDRXdSOb7F0IZQf9lnY1PHq";
     static private final String CONSUMER_SECRET= "oH969vYW60fZLco6E09UQl3uFXqjl4siQbOL0q9q";
diff --git a/app/src/main/java/de/tadris/fitness/osm/OsmTraceUploader.java b/app/src/main/java/de/tadris/fitness/osm/OsmTraceUploader.java
index 0fb64ea..1ed402c 100644
--- a/app/src/main/java/de/tadris/fitness/osm/OsmTraceUploader.java
+++ b/app/src/main/java/de/tadris/fitness/osm/OsmTraceUploader.java
@@ -46,15 +46,15 @@ public class OsmTraceUploader {
 
     private static final int CUT_DISTANCE= 300;
 
-    private Activity activity;
-    private Handler handler;
-    private Workout workout;
-    private List<WorkoutSample> samples;
-    private GpsTraceDetails.Visibility visibility;
-    private OAuthConsumer consumer;
-    private boolean cut;
-    private ProgressDialogController dialogController;
-    private String description;
+    private final Activity activity;
+    private final Handler handler;
+    private final Workout workout;
+    private final List<WorkoutSample> samples;
+    private final GpsTraceDetails.Visibility visibility;
+    private final OAuthConsumer consumer;
+    private final boolean cut;
+    private final ProgressDialogController dialogController;
+    private final String description;
 
     public OsmTraceUploader(Activity activity, Handler handler, Workout workout, List<WorkoutSample> samples, GpsTraceDetails.Visibility visibility, OAuthConsumer consumer, boolean cut, String description) {
         this.activity = activity;
diff --git a/app/src/main/java/de/tadris/fitness/recording/LocationListener.java b/app/src/main/java/de/tadris/fitness/recording/LocationListener.java
index 3c0f15d..f1482f5 100644
--- a/app/src/main/java/de/tadris/fitness/recording/LocationListener.java
+++ b/app/src/main/java/de/tadris/fitness/recording/LocationListener.java
@@ -1,6 +1,6 @@
 
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -51,9 +51,9 @@ public class LocationListener extends Service {
     private static final int LOCATION_INTERVAL = 1000;
 
     private class LocationChangedListener implements android.location.LocationListener {
-        Location mLastLocation;
+        final Location mLastLocation;
 
-        public LocationChangedListener(String provider) {
+        LocationChangedListener(String provider) {
             Log.i(TAG, "LocationListener " + provider);
             mLastLocation = new Location(provider);
         }
@@ -83,7 +83,7 @@ public class LocationListener extends Service {
         }
     }
 
-    LocationChangedListener gpsListener= new LocationChangedListener(LocationManager.GPS_PROVIDER);
+    private final LocationChangedListener gpsListener = new LocationChangedListener(LocationManager.GPS_PROVIDER);
 
     @Override
     public IBinder onBind(Intent arg0) {
diff --git a/app/src/main/java/de/tadris/fitness/recording/WorkoutRecorder.java b/app/src/main/java/de/tadris/fitness/recording/WorkoutRecorder.java
index fbadbc1..07b25a3 100644
--- a/app/src/main/java/de/tadris/fitness/recording/WorkoutRecorder.java
+++ b/app/src/main/java/de/tadris/fitness/recording/WorkoutRecorder.java
@@ -54,8 +54,8 @@ public class WorkoutRecorder implements LocationListener.LocationChangeListener
      */
     private static final int AUTO_STOP_TIMEOUT= 1000*60*60*20; // 20 minutes
 
-    private Context context;
-    private Workout workout;
+    private final Context context;
+    private final Workout workout;
     private RecordingState state;
     private final List<WorkoutSample> samples= new ArrayList<>();
     private long time= 0;
@@ -69,7 +69,7 @@ public class WorkoutRecorder implements LocationListener.LocationChangeListener
     private static final double SIGNAL_BAD_THRESHOLD= 20; // In meters
     private static final int SIGNAL_LOST_THRESHOLD= 10000; // In milliseconds
     private Location lastFix= null;
-    private WorkoutRecorderListener workoutRecorderListener;
+    private final WorkoutRecorderListener workoutRecorderListener;
     private GpsState gpsState= GpsState.SIGNAL_LOST;
 
     public WorkoutRecorder(Context context, String workoutType, WorkoutRecorderListener workoutRecorderListener) {
@@ -164,7 +164,7 @@ public class WorkoutRecorder implements LocationListener.LocationChangeListener
         }
     }
 
-    public void pause(){
+    private void pause() {
         if(state == RecordingState.RUNNING){
             Log.i("Recorder", "Pause");
             state= RecordingState.PAUSED;
@@ -319,7 +319,7 @@ public class WorkoutRecorder implements LocationListener.LocationChangeListener
         SIGNAL_OKAY(Color.GREEN),
         SIGNAL_BAD(Color.YELLOW);
 
-        public int color;
+        public final int color;
 
         GpsState(int color) {
             this.color = color;
diff --git a/app/src/main/java/de/tadris/fitness/recording/WorkoutSaver.java b/app/src/main/java/de/tadris/fitness/recording/WorkoutSaver.java
index 2bf4866..883ca7b 100644
--- a/app/src/main/java/de/tadris/fitness/recording/WorkoutSaver.java
+++ b/app/src/main/java/de/tadris/fitness/recording/WorkoutSaver.java
@@ -31,12 +31,12 @@ import de.tadris.fitness.data.Workout;
 import de.tadris.fitness.data.WorkoutSample;
 import de.tadris.fitness.util.CalorieCalculator;
 
-public class WorkoutSaver {
+class WorkoutSaver {
 
-    private Context context;
-    private Workout workout;
-    private List<WorkoutSample> samples;
-    private AppDatabase db;
+    private final Context context;
+    private final Workout workout;
+    private final List<WorkoutSample> samples;
+    private final AppDatabase db;
 
     public WorkoutSaver(Context context, Workout workout, List<WorkoutSample> samples) {
         this.context = context;
diff --git a/app/src/main/java/de/tadris/fitness/util/CalorieCalculator.java b/app/src/main/java/de/tadris/fitness/util/CalorieCalculator.java
index 388c5d9..8b45239 100644
--- a/app/src/main/java/de/tadris/fitness/util/CalorieCalculator.java
+++ b/app/src/main/java/de/tadris/fitness/util/CalorieCalculator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -43,11 +43,9 @@ public class CalorieCalculator {
      * workoutType and avgSpeed of workout have to be set
      *
      * Calculation currently ignores height.
-     *
-     * @param workout
      * @return MET
      */
-    public static double getMET(Workout workout){
+    private static double getMET(Workout workout) {
         double speedInKmh= workout.avgSpeed * 3.6;
         if(workout.workoutType.equals(Workout.WORKOUT_TYPE_RUNNING) || workout.workoutType.equals(Workout.WORKOUT_TYPE_HIKING)){
             // This is a linear graph based on the website linked above
diff --git a/app/src/main/java/de/tadris/fitness/util/NotificationHelper.java b/app/src/main/java/de/tadris/fitness/util/NotificationHelper.java
index 3900700..66f52d5 100644
--- a/app/src/main/java/de/tadris/fitness/util/NotificationHelper.java
+++ b/app/src/main/java/de/tadris/fitness/util/NotificationHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -28,7 +28,7 @@ import de.tadris.fitness.R;
 
 public class NotificationHelper {
 
-    public static String CHANNEL_WORKOUT= "workout";
+    public static final String CHANNEL_WORKOUT = "workout";
 
     public static void createChannels(Context context){
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
diff --git a/app/src/main/java/de/tadris/fitness/util/gpx/Gpx.java b/app/src/main/java/de/tadris/fitness/util/gpx/Gpx.java
index 3c39f2b..945b948 100644
--- a/app/src/main/java/de/tadris/fitness/util/gpx/Gpx.java
+++ b/app/src/main/java/de/tadris/fitness/util/gpx/Gpx.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -37,7 +37,7 @@ public class Gpx {
     Metadata metadata;
 
     String name;
-    String desc;
+    private String desc;
 
     @JacksonXmlElementWrapper(useWrapping = false)
     List<Track> trk;
diff --git a/app/src/main/java/de/tadris/fitness/util/gpx/GpxExporter.java b/app/src/main/java/de/tadris/fitness/util/gpx/GpxExporter.java
index bcea190..540d783 100644
--- a/app/src/main/java/de/tadris/fitness/util/gpx/GpxExporter.java
+++ b/app/src/main/java/de/tadris/fitness/util/gpx/GpxExporter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -19,6 +19,7 @@
 
 package de.tadris.fitness.util.gpx;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 
 import com.fasterxml.jackson.dataformat.xml.XmlMapper;
@@ -40,7 +41,7 @@ public class GpxExporter {
         mapper.writeValue(file, getGpxFromWorkout(context, workout));
     }
 
-    public static Gpx getGpxFromWorkout(Context context, Workout workout){
+    private static Gpx getGpxFromWorkout(Context context, Workout workout) {
         Gpx gpx= new Gpx();
         gpx.name= workout.toString();
         gpx.version= "1.1";
@@ -52,7 +53,7 @@ public class GpxExporter {
         return gpx;
     }
 
-    public static Track getTrackFromWorkout(Context context, Workout workout, int number){
+    private static Track getTrackFromWorkout(Context context, Workout workout, int number) {
         WorkoutSample[] samples= Instance.getInstance(context).db.workoutDao().getAllSamplesOfWorkout(workout.id);
         Track track= new Track();
         track.number= number;
@@ -77,13 +78,14 @@ public class GpxExporter {
         return track;
     }
 
+    @SuppressLint("SimpleDateFormat")
     private static final SimpleDateFormat formatter= new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSXXX");
 
-    public static String getDateTime(long time){
+    private static String getDateTime(long time) {
         return getDateTime(new Date(time));
     }
 
-    public static String getDateTime(Date date){
+    private static String getDateTime(Date date) {
         return formatter.format(date);
     }
 
diff --git a/app/src/main/java/de/tadris/fitness/util/gpx/Metadata.java b/app/src/main/java/de/tadris/fitness/util/gpx/Metadata.java
index 8087da6..f163e34 100644
--- a/app/src/main/java/de/tadris/fitness/util/gpx/Metadata.java
+++ b/app/src/main/java/de/tadris/fitness/util/gpx/Metadata.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -21,9 +21,9 @@ package de.tadris.fitness.util.gpx;
 
 public class Metadata {
 
-    String name;
-    String desc;
-    String time;
+    private String name;
+    private String desc;
+    private String time;
 
     public Metadata() {
     }
diff --git a/app/src/main/java/de/tadris/fitness/util/gpx/TrackPoint.java b/app/src/main/java/de/tadris/fitness/util/gpx/TrackPoint.java
index ba8deac..acdb690 100644
--- a/app/src/main/java/de/tadris/fitness/util/gpx/TrackPoint.java
+++ b/app/src/main/java/de/tadris/fitness/util/gpx/TrackPoint.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -21,21 +21,23 @@ package de.tadris.fitness.util.gpx;
 
 import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
 
-public class TrackPoint {
+class TrackPoint {
 
     @JacksonXmlProperty(isAttribute = true)
+    private
     double lat;
 
     @JacksonXmlProperty(isAttribute = true)
+    private
     double lon;
 
-    double ele;
+    private double ele;
 
-    String time;
+    private String time;
 
-    String fix;
+    private String fix;
 
-    TrackPointExtension extensions;
+    private TrackPointExtension extensions;
 
     public TrackPoint(){}
 
diff --git a/app/src/main/java/de/tadris/fitness/util/gpx/TrackPointExtension.java b/app/src/main/java/de/tadris/fitness/util/gpx/TrackPointExtension.java
index 88f3046..6252531 100644
--- a/app/src/main/java/de/tadris/fitness/util/gpx/TrackPointExtension.java
+++ b/app/src/main/java/de/tadris/fitness/util/gpx/TrackPointExtension.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -21,7 +21,7 @@ package de.tadris.fitness.util.gpx;
 
 public class TrackPointExtension {
 
-    double speed;
+    private double speed;
 
     public TrackPointExtension(){}
 
diff --git a/app/src/main/java/de/tadris/fitness/util/gpx/TrackSegment.java b/app/src/main/java/de/tadris/fitness/util/gpx/TrackSegment.java
index 324cb24..8034d6e 100644
--- a/app/src/main/java/de/tadris/fitness/util/gpx/TrackSegment.java
+++ b/app/src/main/java/de/tadris/fitness/util/gpx/TrackSegment.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -23,7 +23,7 @@ import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlElementWrapper;
 
 import java.util.List;
 
-public class TrackSegment {
+class TrackSegment {
 
     @JacksonXmlElementWrapper(useWrapping = false)
     List<TrackPoint> trkpt;
diff --git a/app/src/main/java/de/tadris/fitness/util/unit/UnitUtils.java b/app/src/main/java/de/tadris/fitness/util/unit/UnitUtils.java
index 9300366..664706e 100644
--- a/app/src/main/java/de/tadris/fitness/util/unit/UnitUtils.java
+++ b/app/src/main/java/de/tadris/fitness/util/unit/UnitUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -24,22 +24,23 @@ import android.preference.PreferenceManager;
 
 public class UnitUtils {
 
-    public static final Unit UNITS_METRIC= new Metric();
-    public static final Unit UNITS_METRIC_PHYSICAL= new MetricPhysical();
-    public static final Unit UNITS_IMPERIAL_YARDS= new Imperial();
-    public static final Unit UNITS_IMPERIAL_METERS= new ImperialWithMeters();
-    public static final Unit[] supportedUnits= new Unit[] {
+    private static final Unit UNITS_METRIC = new Metric();
+    private static final Unit UNITS_METRIC_PHYSICAL = new MetricPhysical();
+    private static final Unit UNITS_IMPERIAL_YARDS = new Imperial();
+    private static final Unit UNITS_IMPERIAL_METERS = new ImperialWithMeters();
+    private static final Unit[] supportedUnits = new Unit[]{
             UNITS_METRIC, UNITS_METRIC_PHYSICAL, UNITS_IMPERIAL_YARDS, UNITS_IMPERIAL_METERS
     };
 
     public static Unit CHOSEN_SYSTEM= UNITS_METRIC;
 
     public static void setUnit(Context context){
-        int id= Integer.parseInt(PreferenceManager.getDefaultSharedPreferences(context).getString("unitSystem", String.valueOf(UnitUtils.UNITS_METRIC.getId())));
-        setUnit(id);
+        String id = PreferenceManager.getDefaultSharedPreferences(context).getString("unitSystem", String.valueOf(UnitUtils.UNITS_METRIC.getId()));
+        assert id != null;
+        setUnit(Integer.parseInt(id));
     }
 
-    public static void setUnit(int id){
+    private static void setUnit(int id) {
         CHOSEN_SYSTEM= UNITS_METRIC;
         for(Unit unit : supportedUnits){
             if(id == unit.getId()){
@@ -62,13 +63,13 @@ public class UnitUtils {
     }
 
     public static String getHourMinuteSecondTime(long time){
-        long totalSeks= time / 1000;
-        long totalMins= totalSeks / 60;
+        long totalSecs = time / 1000;
+        long totalMins = totalSecs / 60;
         long hours= totalMins / 60;
         long mins= totalMins % 60;
-        long seks= totalSeks % 60;
+        long secs = totalSecs % 60;
         String minStr= (mins < 10 ? "0" : "") + mins;
-        String sekStr= (seks < 10 ? "0" : "") + seks;
+        String sekStr = (secs < 10 ? "0" : "") + secs;
         return hours + ":" + minStr + ":" + sekStr;
     }
 
@@ -85,7 +86,6 @@ public class UnitUtils {
     /**
      *CHOSEN_SYSTEM.getLongDistanceUnit()
      * @param consumption consumption in kcal/km
-     * @return
      */
     public static String getRelativeEnergyConsumption(double consumption){
         double one= CHOSEN_SYSTEM.getDistanceFromKilometers(1);
@@ -115,7 +115,7 @@ public class UnitUtils {
         return round(CHOSEN_SYSTEM.getSpeedFromMeterPerSecond(speed), 1) + " " + CHOSEN_SYSTEM.getSpeedUnit();
     }
 
-    public static double round(double d, int count){
+    private static double round(double d, int count) {
         return (double)Math.round(d * Math.pow(10, count)) / Math.pow(10, count);
     }
 
diff --git a/app/src/main/java/de/tadris/fitness/view/ProgressDialogController.java b/app/src/main/java/de/tadris/fitness/view/ProgressDialogController.java
index d54c887..0edf4a4 100644
--- a/app/src/main/java/de/tadris/fitness/view/ProgressDialogController.java
+++ b/app/src/main/java/de/tadris/fitness/view/ProgressDialogController.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -28,8 +28,8 @@ import de.tadris.fitness.R;
 
 public class ProgressDialogController {
 
-    private Activity context;
-    private Dialog dialog;
+    private final Activity context;
+    private final Dialog dialog;
     private TextView infoView;
     private ProgressBar progressBar;
 
@@ -38,7 +38,7 @@ public class ProgressDialogController {
         setTitle(title);
     }
 
-    public ProgressDialogController(Activity context) {
+    private ProgressDialogController(Activity context) {
         this.context = context;
         this.dialog= new Dialog(context);
         initDialog();
@@ -51,7 +51,7 @@ public class ProgressDialogController {
         progressBar= dialog.findViewById(R.id.dialogProgressBar);
     }
 
-    public void setTitle(String title){
+    private void setTitle(String title) {
         dialog.setTitle(title);
     }
 
diff --git a/app/src/main/java/de/tadris/fitness/view/WorkoutAdapter.java b/app/src/main/java/de/tadris/fitness/view/WorkoutAdapter.java
index c3ece53..eec3a80 100644
--- a/app/src/main/java/de/tadris/fitness/view/WorkoutAdapter.java
+++ b/app/src/main/java/de/tadris/fitness/view/WorkoutAdapter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -40,10 +40,14 @@ public class WorkoutAdapter extends RecyclerView.Adapter<WorkoutAdapter.WorkoutV
 
     public static class WorkoutViewHolder extends RecyclerView.ViewHolder{
 
-        View root;
-        TextView lengthText, timeText, dateText, typeText, commentText;
+        final View root;
+        final TextView lengthText;
+        final TextView timeText;
+        final TextView dateText;
+        final TextView typeText;
+        final TextView commentText;
 
-        public WorkoutViewHolder(@NonNull View itemView) {
+        WorkoutViewHolder(@NonNull View itemView) {
             super(itemView);
             this.root= itemView;
             lengthText= itemView.findViewById(R.id.workoutLength);
@@ -54,8 +58,8 @@ public class WorkoutAdapter extends RecyclerView.Adapter<WorkoutAdapter.WorkoutV
         }
     }
 
-    Workout[] workouts;
-    WorkoutAdapterListener listener;
+    private final Workout[] workouts;
+    private final WorkoutAdapterListener listener;
 
     public WorkoutAdapter(Workout[] workouts, WorkoutAdapterListener listener) {
         this.workouts = workouts;
diff --git a/app/src/main/res/anim/fade_in.xml b/app/src/main/res/anim/fade_in.xml
index 1719ca3..53ad62a 100644
--- a/app/src/main/res/anim/fade_in.xml
+++ b/app/src/main/res/anim/fade_in.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -20,5 +19,7 @@
 
 <set xmlns:android="http://schemas.android.com/apk/res/android"
     android:duration="300">
-    <alpha android:fromAlpha="0" android:toAlpha="1"/>
+    <alpha
+        android:fromAlpha="0"
+        android:toAlpha="1" />
 </set>
\ No newline at end of file
diff --git a/app/src/main/res/anim/stay.xml b/app/src/main/res/anim/stay.xml
index 2ae7269..5cbbda7 100644
--- a/app/src/main/res/anim/stay.xml
+++ b/app/src/main/res/anim/stay.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/drawable-anydpi/ic_add_white.xml b/app/src/main/res/drawable-anydpi/ic_add_white.xml
index fbd7bd1..7c74e5d 100644
--- a/app/src/main/res/drawable-anydpi/ic_add_white.xml
+++ b/app/src/main/res/drawable-anydpi/ic_add_white.xml
@@ -1,5 +1,5 @@
 <!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -20,10 +20,10 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
+    android:tint="#FFFFFF"
     android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="#FFFFFF">
+    android:viewportHeight="24">
     <path
         android:fillColor="#FF000000"
-        android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+        android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z" />
 </vector>
diff --git a/app/src/main/res/drawable-anydpi/ic_gps_no_fix.xml b/app/src/main/res/drawable-anydpi/ic_gps_no_fix.xml
index 50e7bfd..e813043 100644
--- a/app/src/main/res/drawable-anydpi/ic_gps_no_fix.xml
+++ b/app/src/main/res/drawable-anydpi/ic_gps_no_fix.xml
@@ -1,5 +1,5 @@
 <!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -20,11 +20,11 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24"
+    android:alpha="0.8"
     android:tint="#FFFFFF"
-    android:alpha="0.8">
+    android:viewportWidth="24"
+    android:viewportHeight="24">
     <path
         android:fillColor="#FF000000"
-        android:pathData="M20.94,11c-0.46,-4.17 -3.77,-7.48 -7.94,-7.94V1h-2v2.06C6.83,3.52 3.52,6.83 3.06,11H1v2h2.06c0.46,4.17 3.77,7.48 7.94,7.94V23h2v-2.06c4.17,-0.46 7.48,-3.77 7.94,-7.94H23v-2h-2.06zM12,19c-3.87,0 -7,-3.13 -7,-7s3.13,-7 7,-7 7,3.13 7,7 -3.13,7 -7,7z"/>
+        android:pathData="M20.94,11c-0.46,-4.17 -3.77,-7.48 -7.94,-7.94V1h-2v2.06C6.83,3.52 3.52,6.83 3.06,11H1v2h2.06c0.46,4.17 3.77,7.48 7.94,7.94V23h2v-2.06c4.17,-0.46 7.48,-3.77 7.94,-7.94H23v-2h-2.06zM12,19c-3.87,0 -7,-3.13 -7,-7s3.13,-7 7,-7 7,3.13 7,7 -3.13,7 -7,7z" />
 </vector>
diff --git a/app/src/main/res/drawable/ic_record_24dp.xml b/app/src/main/res/drawable/ic_record_24dp.xml
index 802b70a..020f3ad 100644
--- a/app/src/main/res/drawable/ic_record_24dp.xml
+++ b/app/src/main/res/drawable/ic_record_24dp.xml
@@ -1,5 +1,5 @@
 <!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -18,11 +18,11 @@
   -->
 
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-        android:width="24dp"
-        android:height="24dp"
-        android:viewportWidth="24.0"
-        android:viewportHeight="24.0">
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
     <path
-        android:pathData="M12,12m-8,0a8,8 0,1 1,16 0a8,8 0,1 1,-16 0"
-        android:fillColor="@android:color/white"/>
+        android:fillColor="@android:color/white"
+        android:pathData="M12,12m-8,0a8,8 0,1 1,16 0a8,8 0,1 1,-16 0" />
 </vector>
diff --git a/app/src/main/res/layout/activity_list_workouts.xml b/app/src/main/res/layout/activity_list_workouts.xml
index f63f894..f8f6c13 100644
--- a/app/src/main/res/layout/activity_list_workouts.xml
+++ b/app/src/main/res/layout/activity_list_workouts.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -19,10 +18,10 @@
   -->
 
 <FrameLayout 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"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
     tools:context=".activity.ListWorkoutsActivity">
 
     <androidx.recyclerview.widget.RecyclerView
@@ -36,12 +35,12 @@
         android:layout_height="wrap_content"
         android:layout_gravity="bottom|right"
         android:layout_margin="10dp"
+        app:menu_animationDelayPerItem="50"
         app:menu_colorNormal="@color/colorPrimary"
         app:menu_colorPressed="@color/colorPrimaryDark"
-        app:menu_animationDelayPerItem="50"
         app:menu_icon="@drawable/fab_add"
-        app:menu_labels_showAnimation="@anim/fab_slide_in_from_right"
-        app:menu_labels_hideAnimation="@anim/fab_slide_out_to_right">
+        app:menu_labels_hideAnimation="@anim/fab_slide_out_to_right"
+        app:menu_labels_showAnimation="@anim/fab_slide_in_from_right">
 
         <com.github.clans.fab.FloatingActionButton
             android:id="@+id/workoutListRecordRunning"
@@ -51,7 +50,7 @@
             app:fab_colorNormal="@color/colorPrimaryRunning"
             app:fab_colorPressed="@color/colorPrimaryDarkRunning"
             app:fab_label="@string/workoutTypeRunning"
-            app:fab_size="normal"/>
+            app:fab_size="normal" />
 
         <com.github.clans.fab.FloatingActionButton
             android:id="@+id/workoutListRecordHiking"
@@ -71,7 +70,7 @@
             app:fab_colorNormal="@color/colorPrimaryBicycling"
             app:fab_colorPressed="@color/colorPrimaryDarkBicycling"
             app:fab_label="@string/workoutTypeCycling"
-            app:fab_size="normal"/>
+            app:fab_size="normal" />
 
     </com.github.clans.fab.FloatingActionMenu>
 
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 3d17361..287b98e 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/layout/activity_record_workout.xml b/app/src/main/res/layout/activity_record_workout.xml
index 7a81e31..ed8d804 100644
--- a/app/src/main/res/layout/activity_record_workout.xml
+++ b/app/src/main/res/layout/activity_record_workout.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -32,7 +31,7 @@
 
 
         <LinearLayout
-            android:id="@+id/recordMapViewrRoot"
+            android:id="@+id/recordMapViewerRoot"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             android:orientation="vertical">
@@ -65,8 +64,8 @@
         android:layout_height="200dp"
         android:layout_alignParentBottom="true"
         android:layout_marginBottom="0dp"
-        android:padding="10dp"
-        android:orientation="vertical">
+        android:orientation="vertical"
+        android:padding="10dp">
 
         <TextView
             android:id="@+id/recordTime"
diff --git a/app/src/main/res/layout/activity_show_workout.xml b/app/src/main/res/layout/activity_show_workout.xml
index f9eaf4e..de59ff9 100644
--- a/app/src/main/res/layout/activity_show_workout.xml
+++ b/app/src/main/res/layout/activity_show_workout.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -35,7 +34,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:orientation="vertical"
-            android:padding="20dp"></LinearLayout>
+            android:padding="20dp" />
 
     </ScrollView>
 
diff --git a/app/src/main/res/layout/activity_show_workout_map.xml b/app/src/main/res/layout/activity_show_workout_map.xml
index 6d054ab..03409f8 100644
--- a/app/src/main/res/layout/activity_show_workout_map.xml
+++ b/app/src/main/res/layout/activity_show_workout_map.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/layout/activity_show_workout_map_diagram.xml b/app/src/main/res/layout/activity_show_workout_map_diagram.xml
index 7444c92..0d3fdea 100644
--- a/app/src/main/res/layout/activity_show_workout_map_diagram.xml
+++ b/app/src/main/res/layout/activity_show_workout_map_diagram.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -25,7 +24,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
-    tools:context=".activity.ShowWorkoutMapActivity" >
+    tools:context=".activity.ShowWorkoutMapActivity">
 
     <androidx.constraintlayout.widget.Guideline
         android:id="@+id/guideline4"
@@ -58,6 +57,6 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="@+id/guideline4"></LinearLayout>
+        app:layout_constraintTop_toTopOf="@+id/guideline4" />
 
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/dialog_progress.xml b/app/src/main/res/layout/dialog_progress.xml
index 2052bdf..e1ac932 100644
--- a/app/src/main/res/layout/dialog_progress.xml
+++ b/app/src/main/res/layout/dialog_progress.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/layout/dialog_upload_osm.xml b/app/src/main/res/layout/dialog_upload_osm.xml
index 555fa3f..0902a32 100644
--- a/app/src/main/res/layout/dialog_upload_osm.xml
+++ b/app/src/main/res/layout/dialog_upload_osm.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -29,11 +28,12 @@
 
         <TableRow
             android:layout_width="match_parent"
-            android:layout_height="match_parent" >
+            android:layout_height="match_parent">
 
             <TextView
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
+                android:labelFor="@id/uploadDescription"
                 android:text="@string/description" />
 
             <EditText
@@ -48,7 +48,7 @@
 
         <TableRow
             android:layout_width="match_parent"
-            android:layout_height="match_parent" >
+            android:layout_height="match_parent">
 
             <TextView
                 android:layout_width="wrap_content"
@@ -64,13 +64,6 @@
                 android:spinnerMode="dropdown" />
         </TableRow>
 
-        <TableRow
-            android:layout_width="match_parent"
-            android:layout_height="match_parent" />
-
-        <TableRow
-            android:layout_width="match_parent"
-            android:layout_height="match_parent" />
     </TableLayout>
 
     <CheckBox
diff --git a/app/src/main/res/layout/dialog_weight_picker.xml b/app/src/main/res/layout/dialog_weight_picker.xml
index ef08ead..bf97e58 100644
--- a/app/src/main/res/layout/dialog_weight_picker.xml
+++ b/app/src/main/res/layout/dialog_weight_picker.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -20,7 +19,7 @@
 
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"
-    android:layout_height="fill_parent" >
+    android:layout_height="fill_parent">
 
     <NumberPicker
         android:id="@+id/weightPicker"
diff --git a/app/src/main/res/layout/show_entry.xml b/app/src/main/res/layout/show_entry.xml
index a59161c..5f1fab7 100644
--- a/app/src/main/res/layout/show_entry.xml
+++ b/app/src/main/res/layout/show_entry.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/layout/view_workout.xml b/app/src/main/res/layout/view_workout.xml
index 2b818cf..1d0a830 100644
--- a/app/src/main/res/layout/view_workout.xml
+++ b/app/src/main/res/layout/view_workout.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -21,8 +20,8 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:orientation="vertical"
-    android:background="?android:selectableItemBackground">
+    android:background="?android:selectableItemBackground"
+    android:orientation="vertical">
 
     <LinearLayout
         android:layout_width="match_parent"
@@ -90,6 +89,6 @@
     <View
         android:layout_width="match_parent"
         android:layout_height="1dp"
-        android:background="@android:color/darker_gray"/>
+        android:background="@android:color/darker_gray" />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/menu/list_workout_menu.xml b/app/src/main/res/menu/list_workout_menu.xml
index 5d77fe0..fa96d96 100644
--- a/app/src/main/res/menu/list_workout_menu.xml
+++ b/app/src/main/res/menu/list_workout_menu.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/menu/record_menu.xml b/app/src/main/res/menu/record_menu.xml
index 661c755..233e483 100644
--- a/app/src/main/res/menu/record_menu.xml
+++ b/app/src/main/res/menu/record_menu.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/menu/show_workout_menu.xml b/app/src/main/res/menu/show_workout_menu.xml
index fe5e260..6cef614 100644
--- a/app/src/main/res/menu/show_workout_menu.xml
+++ b/app/src/main/res/menu/show_workout_menu.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
index 762dac5..94b0f19 100644
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
index 762dac5..94b0f19 100644
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/values-de/map_layers.xml b/app/src/main/res/values-de/map_layers.xml
index 311b125..21c80f4 100644
--- a/app/src/main/res/values-de/map_layers.xml
+++ b/app/src/main/res/values-de/map_layers.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/values-de/osm_track_visibility.xml b/app/src/main/res/values-de/osm_track_visibility.xml
index 795c516..56a6a05 100644
--- a/app/src/main/res/values-de/osm_track_visibility.xml
+++ b/app/src/main/res/values-de/osm_track_visibility.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 921785d..b0cde6c 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -107,4 +106,5 @@
     <string name="waiting_gps">Warte auf GPS</string>
     <string name="uploadFailed">Upload fehlgeschlagen</string>
     <string name="uploadSuccessful">Upload erfolgreich</string>
+    <string name="uploadFailedOsmNotAuthorized">Nicht autorisiert, nocheinmal versuchen</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-de/unit_systems.xml b/app/src/main/res/values-de/unit_systems.xml
index b86e690..a3594a5 100644
--- a/app/src/main/res/values-de/unit_systems.xml
+++ b/app/src/main/res/values-de/unit_systems.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 391beba..7a29852 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/values/map_layers.xml b/app/src/main/res/values/map_layers.xml
index e08ae72..c3ffe21 100644
--- a/app/src/main/res/values/map_layers.xml
+++ b/app/src/main/res/values/map_layers.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/values/osm_track_visibility.xml b/app/src/main/res/values/osm_track_visibility.xml
index cb78226..e4f2d64 100644
--- a/app/src/main/res/values/osm_track_visibility.xml
+++ b/app/src/main/res/values/osm_track_visibility.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/values/unit_systems.xml b/app/src/main/res/values/unit_systems.xml
index 4513bf0..fa7b370 100644
--- a/app/src/main/res/values/unit_systems.xml
+++ b/app/src/main/res/values/unit_systems.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
diff --git a/app/src/main/res/xml/filepaths.xml b/app/src/main/res/xml/filepaths.xml
index 31ab022..b6969a7 100644
--- a/app/src/main/res/xml/filepaths.xml
+++ b/app/src/main/res/xml/filepaths.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -19,5 +18,7 @@
   -->
 
 <paths>
-    <files-path path="shared/" name="share" />
+    <files-path
+        name="share"
+        path="shared/" />
 </paths>
\ No newline at end of file
diff --git a/app/src/main/res/xml/preferences_main.xml b/app/src/main/res/xml/preferences_main.xml
index dd24e5a..8757058 100644
--- a/app/src/main/res/xml/preferences_main.xml
+++ b/app/src/main/res/xml/preferences_main.xml
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
   ~
   ~ This file is part of FitoTrack
   ~
@@ -21,11 +20,11 @@
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
 
     <ListPreference
+        android:defaultValue="1"
         android:entries="@array/pref_unit_systems"
         android:entryValues="@array/pref_unit_system_values"
         android:key="unitSystem"
-        android:title="@string/pref_unit_system"
-        android:defaultValue="1" />
+        android:title="@string/pref_unit_system" />
 
     <Preference
         android:key="weight"
diff --git a/app/src/test/java/de/tadris/fitness/CalorieCalculatorTest.java b/app/src/test/java/de/tadris/fitness/CalorieCalculatorTest.java
index 5b91824..d360aa8 100644
--- a/app/src/test/java/de/tadris/fitness/CalorieCalculatorTest.java
+++ b/app/src/test/java/de/tadris/fitness/CalorieCalculatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 Jannis Scheibe <jannis@tadris.de>
+ * Copyright (c) 2020 Jannis Scheibe <jannis@tadris.de>
  *
  * This file is part of FitoTrack
  *
@@ -28,12 +28,12 @@ import de.tadris.fitness.util.CalorieCalculator;
 public class CalorieCalculatorTest {
 
     @Test
-    public void testCalculation(){
-        Workout workout= new Workout();
-        workout.avgSpeed= 2.7d;
-        workout.workoutType= Workout.WORKOUT_TYPE_RUNNING;
-        workout.duration= 1000L * 60 * 10;
-        int calorie= CalorieCalculator.calculateCalories(workout, 80);
+    public void testCalculation() {
+        Workout workout = new Workout();
+        workout.avgSpeed = 2.7d;
+        workout.workoutType = Workout.WORKOUT_TYPE_RUNNING;
+        workout.duration = 1000L * 60 * 10;
+        int calorie = CalorieCalculator.calculateCalories(workout, 80);
         System.out.println("Calories: " + calorie);
         Assert.assertEquals(120, calorie, 50);
     }
diff --git a/metadata/en-US/full_description.txt b/metadata/en-US/full_description.txt
index 8744e14..f64f523 100644
--- a/metadata/en-US/full_description.txt
+++ b/metadata/en-US/full_description.txt
@@ -3,4 +3,4 @@ FitoTrack is a mobile app for logging and viewing your workouts. Whether you’r
 Features:
 * Track workouts. Choose the type of sport you would like to track and just start running, cycling or hiking, for example. You can see the general information right below the map on the tracking screen.
 * View your workouts. View general information such as date, time, duration, distance, speed and pace. See your route on a map. Work out your level of performance from the speed diagram.
-* Open-Source. There is neither advertivesment nor tracking, and the source code is open and licensed under the GPLv3.
\ No newline at end of file
+* Open-Source. There is neither advertisement nor tracking, and the source code is open and licensed under the GPLv3.
\ No newline at end of file