clean up, clear map now works

README.md

@@ -6,7 +6,7 @@ Trackbook - Movement Recorder for Android
 
 **Version 0.1.x ("The Great Gig in the Sky")**
 
-Trackbook is a bare bones app for recording your movements. Trackbook is great for hiking, vacation or workout. Once started it displays your movements on a map. 
+Trackbook is a bare bones app for recording your movements. Trackbook is great for hiking, vacation or workout. Once started it traces your movements on a map. The map data is provided by [OpenStreetMap (OSM)](https://www.openstreetmap.org/).
 
 Trackbook is free software. It is published under the [MIT open source license](https://opensource.org/licenses/MIT). Trackbook uses [osmdroid](https://github.com/osmdroid/osmdroid) to display the map, which is also free software published under the [Apache License](https://github.com/osmdroid/osmdroid/blob/master/LICENSE). Want to help? Please check out the notes in [CONTRIBUTE.md](https://github.com/y20k/transistor/blob/master/CONTRIBUTE.md) first.
 
@@ -24,14 +24,6 @@ Do not install Trackbook. Trackbook is not finished yet. See the Install Canary
              |||
              '|'
 
-Developement screenshot(s)
---------------------------
-[<img src="https://cloud.githubusercontent.com/assets/9103935/18307128/4ca8e8a8-74ef-11e6-9f47-33f31bdff36e.png" width="240">](https://cloud.githubusercontent.com/assets/9103935/18307128/4ca8e8a8-74ef-11e6-9f47-33f31bdff36e.png)
-[<img src="https://cloud.githubusercontent.com/assets/9103935/18307129/4ca963be-74ef-11e6-8b5b-f4ea6793a1d1.png" width="240">](https://cloud.githubusercontent.com/assets/9103935/18307129/4ca963be-74ef-11e6-8b5b-f4ea6793a1d1.png)
-[<img src="https://cloud.githubusercontent.com/assets/9103935/18307132/4cabc816-74ef-11e6-9752-237e3f1611fc.png" width="240">](https://cloud.githubusercontent.com/assets/9103935/18307132/4cabc816-74ef-11e6-9752-237e3f1611fc.png)
-[<img src="https://cloud.githubusercontent.com/assets/9103935/18307131/4caa247a-74ef-11e6-8059-41abfe11f71c.png" width="240">](https://cloud.githubusercontent.com/assets/9103935/18307131/4caa247a-74ef-11e6-8059-41abfe11f71c.png)
-[<img src="https://cloud.githubusercontent.com/assets/9103935/18307130/4ca9f270-74ef-11e6-96e7-d918e807e9a2.png" width="240">](https://cloud.githubusercontent.com/assets/9103935/18307130/4ca9f270-74ef-11e6-96e7-d918e807e9a2.png)
-
 How to use Trackbook
 --------------------
 ### Start recording movements
@@ -59,3 +51,11 @@ Trackbook needs accurate GPS location data to be able to record your movements.
 
 ### Permission "WRITE_EXTERNAL_STORAGE"
 Trackbook uses [osmdroid](https://github.com/osmdroid/osmdroid), which caches map tiles on Android's external storage. You can find the map cache in the `osmdroid` folder on the top level of the user-facing file system.
+
+Developement screenshot(s)
+--------------------------
+[<img src="https://cloud.githubusercontent.com/assets/9103935/18307128/4ca8e8a8-74ef-11e6-9f47-33f31bdff36e.png" width="240">](https://cloud.githubusercontent.com/assets/9103935/18307128/4ca8e8a8-74ef-11e6-9f47-33f31bdff36e.png)
+[<img src="https://cloud.githubusercontent.com/assets/9103935/18307129/4ca963be-74ef-11e6-8b5b-f4ea6793a1d1.png" width="240">](https://cloud.githubusercontent.com/assets/9103935/18307129/4ca963be-74ef-11e6-8b5b-f4ea6793a1d1.png)
+[<img src="https://cloud.githubusercontent.com/assets/9103935/18307132/4cabc816-74ef-11e6-9752-237e3f1611fc.png" width="240">](https://cloud.githubusercontent.com/assets/9103935/18307132/4cabc816-74ef-11e6-9752-237e3f1611fc.png)
+[<img src="https://cloud.githubusercontent.com/assets/9103935/18307131/4caa247a-74ef-11e6-8059-41abfe11f71c.png" width="240">](https://cloud.githubusercontent.com/assets/9103935/18307131/4caa247a-74ef-11e6-8059-41abfe11f71c.png)
+[<img src="https://cloud.githubusercontent.com/assets/9103935/18307130/4ca9f270-74ef-11e6-96e7-d918e807e9a2.png" width="240">](https://cloud.githubusercontent.com/assets/9103935/18307130/4ca9f270-74ef-11e6-96e7-d918e807e9a2.png)

app/build.gradle

@@ -9,7 +9,7 @@ android {
         minSdkVersion 22
         targetSdkVersion 24
         versionCode 1
-        versionName "0.1.0 (The Great Gig in the Sky)"
+        versionName "0.9.0 (The Great Gig in the Sky)"
         vectorDrawables.useSupportLibrary = true
     }
     buildTypes {

app/src/main/java/org/y20k/trackbook/MainActivity.java

@@ -26,6 +26,7 @@ import android.content.pm.PackageManager;
 import android.location.Location;
 import android.os.Build;
 import android.os.Bundle;
+import android.support.annotation.NonNull;
 import android.support.design.widget.FloatingActionButton;
 import android.support.design.widget.Snackbar;
 import android.support.v4.content.ContextCompat;
@@ -38,6 +39,7 @@ import android.view.View;
 import android.widget.Button;
 import android.widget.Toast;
 
+import org.y20k.trackbook.helpers.LogHelper;
 import org.y20k.trackbook.helpers.NotificationHelper;
 import org.y20k.trackbook.helpers.TrackbookKeys;
 
@@ -60,7 +62,6 @@ public class MainActivity extends AppCompatActivity implements TrackbookKeys {
     private boolean mTrackerServiceRunning;
     private boolean mPermissionsGranted;
     private List<String> mMissingPermissions;
-    private View mRootView;
     private FloatingActionButton mFloatingActionButton;
     private MainActivityFragment mMainActivityFragment;
     private BroadcastReceiver mTrackingStoppedReceiver;
@@ -143,14 +144,8 @@ public class MainActivity extends AppCompatActivity implements TrackbookKeys {
     protected void onResume() {
         super.onResume();
 
-        Intent intent = getIntent();
+        // handle new intents - onNewIntent does not seem to work
-        String intentAction = intent.getAction();
+        handleIncomingIntent();
-        if (intentAction != null && intentAction.contains(ACTION_SHOW_MAP) && intent.hasExtra(EXTRA_TRACKING_STATE)) {
-            mTrackerServiceRunning = intent.getBooleanExtra(EXTRA_TRACKING_STATE, false);
-            mMainActivityFragment.setTrackingState(mTrackerServiceRunning);
-            // prevent multiple reactions to intent
-            intent.setAction(ACTION_DEFAULT);
-        }
 
         // if not in onboarding mode: set state of FloatingActionButton
         if (mFloatingActionButton != null) {
@@ -169,7 +164,7 @@ public class MainActivity extends AppCompatActivity implements TrackbookKeys {
 
 
     @Override
-    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
         switch (requestCode) {
             case REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS:	{
                 Map<String, Integer> perms = new HashMap<>();
@@ -219,16 +214,18 @@ public class MainActivity extends AppCompatActivity implements TrackbookKeys {
             mFloatingActionButton.setOnClickListener(new View.OnClickListener() {
                 @Override
                 public void onClick(View view) {
+                    // onClick: start / stop tracking
                     handleFloatingActionButtonClick(view);
                 }
             });
             mFloatingActionButton.setOnLongClickListener(new View.OnLongClickListener() {
                 @Override
                 public boolean onLongClick(View view) {
-                    if (mTrackerServiceRunning) {
+                    // onLongClick: clear map
+                    if (mTrackerServiceRunning || mMainActivityFragment == null) {
                         return false;
                     } else {
-                        clearMap();
+                        mMainActivityFragment.clearMap();
                         NotificationHelper.stop();
                         return true;
                     }
@@ -305,10 +302,30 @@ public class MainActivity extends AppCompatActivity implements TrackbookKeys {
     }
 
 
+    /* Handles new incoming intents */
+    private void handleIncomingIntent() {
+        Intent intent = getIntent();
+        String intentAction = intent.getAction();
 
-    /* Removes track crumbs from map */
+        switch (intentAction) {
-    private void clearMap() {
+            case ACTION_SHOW_MAP:
-        Toast.makeText(this, "Clearing map", Toast.LENGTH_LONG).show(); // TODO remove
+                if (intent.hasExtra(EXTRA_TRACKING_STATE) && mMainActivityFragment != null) {
+                    mTrackerServiceRunning = intent.getBooleanExtra(EXTRA_TRACKING_STATE, false);
+                    mMainActivityFragment.setTrackingState(mTrackerServiceRunning);
+                    // prevent multiple reactions to intent
+                    intent.setAction(ACTION_DEFAULT);
+                } else if (intent.hasExtra(EXTRA_CLEAR_MAP) && mMainActivityFragment != null) {
+                    mMainActivityFragment.clearMap();
+                    // prevent multiple reactions to intent
+                    intent.setAction(ACTION_DEFAULT);
+                }
+                break;
+
+            default:
+                // log
+                LogHelper.v(LOG_TAG, "Intent received. Doing nothing. Type of ACTION: " +  intentAction);
+                break;
+        }
     }
 
 

app/src/main/java/org/y20k/trackbook/MainActivityFragment.java

@@ -30,7 +30,6 @@ import android.os.SystemClock;
 import android.preference.PreferenceManager;
 import android.support.v4.app.Fragment;
 import android.support.v4.content.LocalBroadcastManager;
-import android.util.DisplayMetrics;
 import android.view.LayoutInflater;
 import android.view.MenuItem;
 import android.view.View;
@@ -77,6 +76,7 @@ public class MainActivityFragment extends Fragment implements TrackbookKeys {
     private Location mCurrentBestLocation;
     private boolean mTrackerServiceRunning;
     private boolean mLocalTrackerRunning;
+    private boolean mFragmentVisible;
 
 
     /* Constructor (default) */
@@ -144,9 +144,6 @@ public class MainActivityFragment extends Fragment implements TrackbookKeys {
         // create basic map
         mMapView = new MapView(inflater.getContext());
 
-        // get display metrics
-        final DisplayMetrics dm = mActivity.getResources().getDisplayMetrics();
-
         // get map controller
         mController = mMapView.getController();
 
@@ -172,6 +169,12 @@ public class MainActivityFragment extends Fragment implements TrackbookKeys {
             mController.setZoom(16);
         }
 
+        // inform user that new/better location is on its way
+        if (mFirstStart && !mTrackerServiceRunning) {
+            Toast.makeText(mActivity, mActivity.getString(R.string.toast_message_acquiring_location), Toast.LENGTH_LONG).show();
+            mFirstStart = false;
+        }
+
         // restore track
         if (savedInstanceState != null) {
             mTrack = savedInstanceState.getParcelable(INSTANCE_TRACK);
@@ -200,8 +203,11 @@ public class MainActivityFragment extends Fragment implements TrackbookKeys {
     public void onResume() {
         super.onResume();
 
+        // set visibility
+        mFragmentVisible = true;
+
         // start preliminary tracking - if no TrackerService is running
-        if (!mTrackerServiceRunning) {
+        if (!mTrackerServiceRunning && mFragmentVisible) {
             startPreliminaryTracking();
         }
 
@@ -222,6 +228,9 @@ public class MainActivityFragment extends Fragment implements TrackbookKeys {
     public void onPause() {
         super.onPause();
 
+        // set visibility
+        mFragmentVisible = false;
+
         // disable preliminary location listeners
         stopPreliminaryTracking();
     }
@@ -266,9 +275,7 @@ public class MainActivityFragment extends Fragment implements TrackbookKeys {
 
                 // get current position
                 GeoPoint position;
-                if (mCurrentBestLocation != null) {
+                if (mCurrentBestLocation == null) {
-                    // app has a current best estimate location
-                } else {
                     // app does not have any location fix
                     mCurrentBestLocation = LocationHelper.determineLastKnownLocation(mLocationManager);
                 }
@@ -346,6 +353,15 @@ public class MainActivityFragment extends Fragment implements TrackbookKeys {
     }
 
 
+    /* Removes track crumbs from map */
+    public void clearMap() {
+        if (mTrackOverlay != null) {
+            Toast.makeText(mActivity, mActivity.getString(R.string.toast_message_clear_map), Toast.LENGTH_LONG).show();
+            mMapView.getOverlays().remove(mTrackOverlay);
+        }
+    }
+
+
     /* Start preliminary tracking for map */
     private void startPreliminaryTracking() {
         mLocalTrackerRunning = true;
@@ -438,8 +454,7 @@ public class MainActivityFragment extends Fragment implements TrackbookKeys {
                     mCurrentBestLocation = intent.getParcelableExtra(EXTRA_LAST_LOCATION);
                     mController.setCenter(convertToGeoPoint(mCurrentBestLocation));
                     // clear intent
-                    intent.removeExtra(EXTRA_TRACK);
+                    intent.setAction(ACTION_DEFAULT);
-                    intent.removeExtra(EXTRA_LAST_LOCATION);
                 }
             }
         };

app/src/main/java/org/y20k/trackbook/TrackerService.java

@@ -83,7 +83,7 @@ public class TrackerService extends Service implements TrackbookKeys {
                 mCurrentBestLocation = LocationHelper.determineLastKnownLocation(mLocationManager);
             }
 
-            // add last location as waypoint to track
+            // add last location as WayPoint to track
             addWayPointToTrack();
 
             // set timer to retrieve new locations and to prevent endless tracking
@@ -106,6 +106,9 @@ public class TrackerService extends Service implements TrackbookKeys {
             };
             mTimer.start();
 
+            // put up notification
+            NotificationHelper.show(this,mTrack);
+
             // create gps and network location listeners
             startFindingLocation();
         }
@@ -117,6 +120,9 @@ public class TrackerService extends Service implements TrackbookKeys {
             // stop timer
             mTimer.cancel();
 
+            // change notification
+            NotificationHelper.update(mTrack, false);
+
             // remove listeners
             stopFindingLocation();
         }
@@ -160,7 +166,7 @@ public class TrackerService extends Service implements TrackbookKeys {
             // add first location to track
             newWayPoint = mTrack.addWayPoint(mCurrentBestLocation);
         } else {
-            // get last waypoint and compare it to current location
+            // get last WayPoint and compare it to current location
             Location lastWayPoint = mTrack.getWayPointLocation(trackSize - 1);
             if (LocationHelper.isNewWayPoint(lastWayPoint, mCurrentBestLocation)) {
                 // if new, add current best location to track
@@ -209,8 +215,6 @@ public class TrackerService extends Service implements TrackbookKeys {
 
     /* Creates gps and network location listeners */
     private void startFindingLocation() {
-        // put up notification
-        NotificationHelper.show(this,mTrack);
 
         // register location listeners and request updates
         List locationProviders = mLocationManager.getProviders(true);
@@ -235,10 +239,6 @@ public class TrackerService extends Service implements TrackbookKeys {
         i.putExtra(EXTRA_LAST_LOCATION, mCurrentBestLocation);
         LocalBroadcastManager.getInstance(getApplicationContext()).sendBroadcast(i);
 
-//        // cancel notification
-//        NotificationHelper.stop();
-        // change notification
-        NotificationHelper.update(mTrack, false);
     }
 
 

app/src/main/java/org/y20k/trackbook/core/Track.java

@@ -1,7 +1,7 @@
 /**
  * Track.java
  * Implements the Track class
- * A Track stores a list of waypoints
+ * A Track stores a list of WayPoints
  *
  * This file is part of
  * TRACKBOOK - Movement Recorder for Android
@@ -26,6 +26,7 @@ import org.y20k.trackbook.helpers.TrackbookKeys;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Locale;
 
 
 /**
@@ -71,29 +72,29 @@ public class Track implements TrackbookKeys, Parcelable {
     };
 
 
-    /* Adds new waypoint */
+    /* Adds new WayPoint */
     public WayPoint addWayPoint(Location location) {
         // add up distance
         mTrackLength = addDistanceToTrack(location);
 
         int wayPointCount = mWayPoints.size();
 
-        // determine if last waypoint was a stopover
+        // determine if last WayPoint was a stopover
         boolean stopOver = false;
         if (wayPointCount > 1) {
             Location lastLocation = mWayPoints.get(wayPointCount - 1).getLocation();
             stopOver = LocationHelper.isStopOver(lastLocation, location);
         }
         if (stopOver) {
-            // mark last waypoint as stopover
+            // mark last WayPoint as stopover
             LogHelper.v(LOG_TAG, "Last Location was a stop.");
             mWayPoints.get(wayPointCount-1).setIsStopOver(true);
         }
 
-        // create new waypoint
+        // create new WayPoint
         WayPoint wayPoint = new WayPoint(location, false, mTrackLength);
 
-        // add new waypoint to track
+        // add new WayPoint to track
         mWayPoints.add(wayPoint);
 
         return wayPoint;
@@ -128,7 +129,7 @@ public class Track implements TrackbookKeys, Parcelable {
     public String getTrackDistance() {
         float trackDistance = mWayPoints.get(mWayPoints.size()-1).getDistanceToStartingPoint();
 
-        return String.format ("%.0f", trackDistance)  + "m";
+        return String.format (Locale.ENGLISH, "%.0f", trackDistance)  + "m";
     }
 
 
@@ -139,7 +140,7 @@ public class Track implements TrackbookKeys, Parcelable {
 
     /* Adds distance to given location to length of track */
     private float addDistanceToTrack(Location location) {
-        // get number of previously recorded waypoints
+        // get number of previously recorded WayPoints
         int wayPointCount = mWayPoints.size();
 
         // at least two data points are needed

app/src/main/java/org/y20k/trackbook/helpers/LocationHelper.java

@@ -22,6 +22,7 @@ import android.location.LocationManager;
 import android.os.SystemClock;
 
 import java.util.List;
+import java.util.Locale;
 import java.util.concurrent.TimeUnit;
 
 
@@ -132,7 +133,7 @@ public final class LocationHelper implements TrackbookKeys {
     }
 
 
-    /* Checks if given location is a new waypoint */
+    /* Checks if given location is a new WayPoint */
     public static boolean isNewWayPoint(Location lastLocation, Location newLocation) {
         float distance = newLocation.distanceTo(lastLocation);
         long timeDifference = newLocation.getElapsedRealtimeNanos() - lastLocation.getElapsedRealtimeNanos();
@@ -217,12 +218,12 @@ public final class LocationHelper implements TrackbookKeys {
 
         if (includeHours) {
             // format hh:mm:ss
-            return String.format("%02d:%02d:%02d", TimeUnit.MILLISECONDS.toHours(milliseconds),
+            return String.format(Locale.ENGLISH, "%02d:%02d:%02d", TimeUnit.MILLISECONDS.toHours(milliseconds),
                     TimeUnit.MILLISECONDS.toMinutes(milliseconds) % TimeUnit.HOURS.toMinutes(1),
                     TimeUnit.MILLISECONDS.toSeconds(milliseconds) % TimeUnit.MINUTES.toSeconds(1));
         } else if (TimeUnit.MILLISECONDS.toHours(milliseconds) < 1) {
             // format mm:ss
-            return String.format("%02d:%02d", TimeUnit.MILLISECONDS.toMinutes(milliseconds) % TimeUnit.HOURS.toMinutes(1),
+            return String.format(Locale.ENGLISH, "%02d:%02d", TimeUnit.MILLISECONDS.toMinutes(milliseconds) % TimeUnit.HOURS.toMinutes(1),
                     TimeUnit.MILLISECONDS.toSeconds(milliseconds) % TimeUnit.MINUTES.toSeconds(1));
         } else {
             return null;

app/src/main/java/org/y20k/trackbook/helpers/LogHelper.java

@@ -26,7 +26,7 @@ import android.util.Log;
  */
 public final class LogHelper {
 
-    private final static boolean mTesting = true;
+    private final static boolean mTesting = false;
 
     public static void d(final String tag, String message) {
         // include logging only in debug versions

app/src/main/java/org/y20k/trackbook/helpers/MapHelper.java

@@ -90,14 +90,14 @@ public final class MapHelper {
         final ArrayList<OverlayItem> overlayItems = new ArrayList<>();
 
         for (int i = 0 ; i < track.getSize() ; i++) {
-            // get waypoint and check if it is current position
+            // get WayPoint and check if it is current position
             wayPoint = wayPoints.get(i);
             currentPosition = i == trackSize - 1;
 
             // create marker
             Drawable newMarker;
 
-            // CASE 1: Tracking active and waypoint is not current position
+            // CASE 1: Tracking active and WayPoint is not current position
             if (trackingActive && !currentPosition) {
                 if (wayPoint.getIsStopOver()) {
                     // stop over marker
@@ -108,7 +108,7 @@ public final class MapHelper {
                 }
             }
 
-            // CASE 2: Tracking active and waypoint is current position
+            // CASE 2: Tracking active and WayPoint is current position
             else if (trackingActive && currentPosition) {
                 if (wayPoint.getIsStopOver()) {
                     // stop over marker
@@ -119,7 +119,7 @@ public final class MapHelper {
                 }
             }
 
-            // CASE 3: Tracking not active and waypoint is not current position
+            // CASE 3: Tracking not active and WayPoint is not current position
             else if (!trackingActive && !currentPosition) {
                 if (wayPoint.getIsStopOver()) {
                     // stop over marker
@@ -130,7 +130,7 @@ public final class MapHelper {
                 }
             }
 
-            // CASE 4: Tracking not active and waypoint is current position
+            // CASE 4: Tracking not active and WayPoint is current position
             else {
                 // default marker
                 newMarker = AppCompatDrawableManager.get().getDrawable(context, R.drawable.ic_my_location_crumb_blue_24dp);

app/src/main/res/layout/onboarding_main.xml

@@ -31,7 +31,7 @@
                 android:layout_height="wrap_content"
                 android:id="@+id/trackbook_icon"
                 android:background="@mipmap/ic_launcher"
-                android:contentDescription="@string/layout_onboading_description_app_icon"
+                android:contentDescription="@string/layout_onboarding_description_app_icon"
                 android:layout_marginEnd="@dimen/activity_horizontal_margin"
                 android:layout_gravity="center_vertical" />
 
@@ -45,14 +45,14 @@
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:textAppearance="?android:attr/textAppearanceMedium"
-                    android:text="@string/layout_onboading_h2_app_name"
+                    android:text="@string/layout_onboarding_h2_app_name"
                     android:id="@+id/h2_app_name" />
 
                 <TextView
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:textAppearance="?android:attr/textAppearanceSmall"
-                    android:text="@string/layout_onboading_p_app_claim"
+                    android:text="@string/layout_onboarding_p_app_claim"
                     android:id="@+id/p_app_claim" />
 
             </LinearLayout>
@@ -63,7 +63,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:textAppearance="?android:attr/textAppearanceMedium"
-            android:text="@string/layout_onboading_h2_request_permissions"
+            android:text="@string/layout_onboarding_h2_request_permissions"
             android:id="@+id/h2_request_permissions"
             android:layout_marginTop="@dimen/activity_vertical_margin"/>
 
@@ -72,14 +72,14 @@
             android:layout_height="wrap_content"
             android:textAppearance="?android:attr/textAppearanceSmall"
             android:textStyle="bold"
-            android:text="@string/layout_onboading_h3_permission_location"
+            android:text="@string/layout_onboarding_h3_permission_location"
             android:id="@+id/h3_permission_location"
             android:layout_marginTop="@dimen/activity_vertical_margin"/>
         <TextView
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:textAppearance="?android:attr/textAppearanceSmall"
-            android:text="@string/layout_onboading_p_permission_location"
+            android:text="@string/layout_onboarding_p_permission_location"
             android:id="@+id/p_permission_location" />
 
         <TextView
@@ -87,14 +87,14 @@
             android:layout_height="wrap_content"
             android:textAppearance="?android:attr/textAppearanceSmall"
             android:textStyle="bold"
-            android:text="@string/layout_onboading_h3_permission_storage"
+            android:text="@string/layout_onboarding_h3_permission_storage"
             android:id="@+id/h3_permission_storage"
             android:layout_marginTop="@dimen/activity_vertical_margin" />
         <TextView
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:textAppearance="?android:attr/textAppearanceSmall"
-            android:text="@string/layout_onboading_p_permission_storage"
+            android:text="@string/layout_onboarding_p_permission_storage"
             android:id="@+id/p_permission_storage" />
 
         <Button
@@ -102,7 +102,7 @@
             android:layout_height="wrap_content"
             android:backgroundTint="@color/trackbook_blue"
             android:textColor="@color/trackbook_white"
-            android:text="@string/layout_onboading_button_okay"
+            android:text="@string/layout_onboarding_button_okay"
             android:id="@+id/button_okay"
             android:layout_gravity="end"
             android:layout_marginTop="@dimen/activity_vertical_margin"/>

app/src/main/res/values/strings.xml

@@ -28,29 +28,30 @@
     <string name="toast_message_location_offline">Location is turned off.</string>
     <string name="toast_message_acquiring_location">Acquiring current location.</string>
     <string name="toast_message_last_location">Last location:</string>
+    <string name="toast_message_clear_map">Clearing map.</string>
     <string name="toast_message_last_location_age_one_hour">over one hour</string>
 
     <!-- map markers -->
     <string name="marker_description_source">Source</string>
     <string name="marker_description_accuracy">Accuracy</string>
 
-    <!-- onboading layout -->
+    <!-- onboarding layout -->
     <string name="layout_onboarding_h1_welcome">Hello</string>
-    <string name="layout_onboading_description_app_icon">Trackbook App Icon</string>
+    <string name="layout_onboarding_description_app_icon">Trackbook App Icon</string>
-    <string name="layout_onboading_h2_app_name">Trackbook</string>
+    <string name="layout_onboarding_h2_app_name">Trackbook</string>
-    <string name="layout_onboading_p_app_claim">Movement Recorder for Android</string>
+    <string name="layout_onboarding_p_app_claim">Movement Recorder for Android</string>
-    <string name="layout_onboading_h2_request_permissions">Trackbook cannot work without these permissions:</string>
+    <string name="layout_onboarding_h2_request_permissions">Trackbook cannot work without these permissions:</string>
-    <string name="layout_onboading_h3_permission_location">LOCATION</string>
+    <string name="layout_onboarding_h3_permission_location">LOCATION</string>
-    <string name="layout_onboading_p_permission_location">Trackbook needs accurate GPS location data to be able to record your movements. If the GPS data is not available or not accurate enough Trackbook uses location data from cell tower and WiFi triangulation.</string>
+    <string name="layout_onboarding_p_permission_location">Trackbook needs accurate GPS location data to be able to record your movements. If the GPS data is not available or not accurate enough Trackbook uses location data from cell tower and WiFi triangulation.</string>
-    <string name="layout_onboading_h3_permission_storage">STORAGE</string>
+    <string name="layout_onboarding_h3_permission_storage">STORAGE</string>
-    <string name="layout_onboading_p_permission_storage">Trackbook uses osmdroid, which caches map tiles on Android\'s external storage. You can find the map cache in the osmdroid folder on the top level of the user-facing file system.</string>
+    <string name="layout_onboarding_p_permission_storage">Trackbook uses osmdroid, which caches map tiles on Android\'s external storage. You can find the map cache in the osmdroid folder on the top level of the user-facing file system.</string>
-    <string name="layout_onboading_button_okay">Got it!</string>
+    <string name="layout_onboarding_button_okay">Got it!</string>
 
     <!-- infosheet about -->
     <string name="infosheet_about_h1_about">About Trackbook</string>
     <string name="infosheet_about_h2_recorder">Movement Recorder for Android</string>
     <string name="infosheet_about_h3_version">Version 0.1 ("The Great Gig in the Sky")</string>
-    <string name="infosheet_about_p_bare">Trackbook is a bare bones app for recording your movements. Trackbook is great for hiking, vacation or workout. Once started it displays your movements on a map. You can save your recorded tracks and share them with friends.</string>
+    <string name="infosheet_about_p_bare">Trackbook is a bare bones app for recording your movements. Trackbook is great for hiking, vacation or workout. Once started it traces your movements on a map. The map data is provided by OpenStreetMap (OSM).</string>
     <string name="infosheet_about_p_free">Trackbook is free software. You can find the code on GitHub. GitHub is also a good place to file bugs or even to contribute, if you are interested. Trackbook is published under the MIT open source license. Trackbook uses osmdroid to display the map, which is also free software published under the Apache License.</string>
     <string name="infosheet_about_p_github">https://github.com/y20k/trackbook</string>
     <string name="infosheet_about_p_osmdroid">https://github.com/osmdroid/osmdroid</string>