Add option to rotate aprs map with compass

codec2talkie/src/main/java/com/radio/codec2talkie/maps/MapActivity.java

@@ -8,8 +8,11 @@ import android.graphics.Color;
 import android.graphics.Paint;
 import android.graphics.Rect;
 import android.graphics.drawable.BitmapDrawable;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
 import android.os.Bundle;
 import android.util.DisplayMetrics;
+import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
 
@@ -57,6 +60,7 @@ public class MapActivity extends AppCompatActivity {
     private AprsSymbolTable _aprsSymbolTable;
 
     private String _mySymbolCode;
+    private boolean _rotateMap = false;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -84,7 +88,16 @@ public class MapActivity extends AppCompatActivity {
         _mapController.zoomTo(5.0);
 
         // compass
-        _compassOverlay = new CompassOverlay(context, new InternalCompassOrientationProvider(context), _map);
+        InternalCompassOrientationProvider compassOrientationProvider = new InternalCompassOrientationProvider(context) {
+            @Override
+            public void onSensorChanged(SensorEvent sensorEvent) {
+                if (_rotateMap) {
+                    _map.setMapOrientation(-sensorEvent.values[0]);
+                }
+                super.onSensorChanged(sensorEvent);
+            }
+        };
+        _compassOverlay = new CompassOverlay(context, compassOrientationProvider, _map);
         _compassOverlay.enableCompass();
         _map.getOverlays().add(_compassOverlay);
 
@@ -209,6 +222,16 @@ public class MapActivity extends AppCompatActivity {
         } else if (itemId == R.id.map_menu_clear_cache) {
             _map.getTileProvider().clearTileCache();
             return true;
+        } else if (itemId == R.id.map_menu_rotate_map) {
+            if (item.isChecked()) {
+                item.setChecked(false);
+                _rotateMap = false;
+                _map.setMapOrientation(0);
+            } else {
+                item.setChecked(true);
+                _rotateMap = true;
+            }
+            return true;
         }
 
         return super.onOptionsItemSelected(item);

codec2talkie/src/main/res/menu/map_menu.xml

@@ -1,5 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:id="@+id/map_menu_rotate_map"
+        android:title="@string/map_menu_rotate_map"
+        android:checkable="true"
+        android:checked="false"/>
     <item
         android:id="@+id/map_menu_clear_cache"
         android:title="@string/map_menu_clear_cache_title" />

codec2talkie/src/main/res/values/strings.xml

@@ -363,4 +363,5 @@
     <string name="log_view_menu_clear_7d">Older than 7 days</string>
     <string name="log_view_menu_clear_all">Clear all</string>
     <string name="log_item_activity_delete_hours_title">This will remove everything older than %d hours. Are you sure?</string>
+    <string name="map_menu_rotate_map">Rotate map with compass</string>
 </resources>