Fixes crash during Activity onPause()

android/src/main/java/com/airbnb/android/react/maps/AirMapManager.java

@@ -72,12 +72,6 @@ protected AirMapView createViewInstance(ThemedReactContext context) {
         return new AirMapView(context, this.appContext.getCurrentActivity(), this, this.googleMapOptions);
     }
 
-    @Override
-    public void onDropViewInstance(AirMapView view) {
-        view.doDestroy();
-        super.onDropViewInstance(view);
-    }
-
     private void emitMapError(String message, String type) {
         WritableMap error = Arguments.createMap();
         error.putString("message", message);

android/src/main/java/com/airbnb/android/react/maps/AirMapView.java

@@ -39,7 +39,6 @@
 import com.google.android.gms.maps.model.LatLng;
 import com.google.android.gms.maps.model.LatLngBounds;
 import com.google.android.gms.maps.model.Marker;
-import com.google.android.gms.maps.model.TileOverlay;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -75,24 +74,24 @@ public class AirMapView extends MapView implements GoogleMap.InfoWindowAdapter,
     private final ScaleGestureDetector scaleDetector;
     private final GestureDetectorCompat gestureDetector;
     private final AirMapManager manager;
-    private LifecycleEventListener lifecycleListener;
     private boolean paused = false;
     private final ThemedReactContext context;
     private final EventDispatcher eventDispatcher;
 
-    public AirMapView(ThemedReactContext context, Context appContext, AirMapManager manager, GoogleMapOptions googleMapOptions) {
+    public AirMapView(ThemedReactContext reactContext, Context appContext, AirMapManager manager,
+            GoogleMapOptions googleMapOptions) {
         super(appContext, googleMapOptions);
 
         this.manager = manager;
-        this.context = context;
+        this.context = reactContext;
 
         super.onCreate(null);
         super.onResume();
         super.getMapAsync(this);
 
         final AirMapView view = this;
         scaleDetector =
-                new ScaleGestureDetector(context, new ScaleGestureDetector.SimpleOnScaleGestureListener() {
+                new ScaleGestureDetector(reactContext, new ScaleGestureDetector.SimpleOnScaleGestureListener() {
                     @Override
                     public boolean onScaleBegin(ScaleGestureDetector detector) {
                         view.startMonitoringRegion();
@@ -101,7 +100,7 @@ public boolean onScaleBegin(ScaleGestureDetector detector) {
         });
 
         gestureDetector =
-                new GestureDetectorCompat(context, new GestureDetector.SimpleOnGestureListener() {
+                new GestureDetectorCompat(reactContext, new GestureDetector.SimpleOnGestureListener() {
                     @Override
                     public boolean onDoubleTap(MotionEvent e) {
                         view.startMonitoringRegion();
@@ -122,13 +121,13 @@ public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
         this.addOnLayoutChangeListener(new OnLayoutChangeListener() {
             @Override public void onLayoutChange(View v, int left, int top, int right, int bottom,
                 int oldLeft, int oldTop, int oldRight, int oldBottom) {
-                if (!AirMapView.this.paused) {
+                if (!paused) {
                     AirMapView.this.cacheView();
                 }
             }
         });
 
-        eventDispatcher = context.getNativeModule(UIManagerModule.class).getEventDispatcher();
+        eventDispatcher = reactContext.getNativeModule(UIManagerModule.class).getEventDispatcher();
     }
 
     @Override
@@ -222,36 +221,32 @@ public void onCameraChange(CameraPosition position) {
         // updating location constantly, killing the battery, even though some other location-mgmt
         // module may
         // desire to shut-down location-services.
-        lifecycleListener = new LifecycleEventListener() {
-            @Override
-            public void onHostResume() {
-                if (hasPermissions()) {
-                    //noinspection MissingPermission
-                    map.setMyLocationEnabled(showUserLocation);
-                }
-                synchronized (AirMapView.this) {
-                    AirMapView.this.onResume();
-                    paused = false;
-                }
-            }
+      LifecycleEventListener lifecycleListener = new LifecycleEventListener() {
+        @Override
+        public void onHostResume() {
+          if (hasPermissions()) {
+            //noinspection MissingPermission
+            map.setMyLocationEnabled(showUserLocation);
+          }
+          synchronized (AirMapView.this) {
+            AirMapView.this.onResume();
+            paused = false;
+          }
+        }
 
-            @Override
-            public void onHostPause() {
-                if (hasPermissions()) {
-                    //noinspection MissingPermission
-                    map.setMyLocationEnabled(false);
-                }
-                synchronized (AirMapView.this) {
-                    AirMapView.this.onPause();
-                    paused = true;
-                }
-            }
+        @Override
+        public void onHostPause() {
+          if (hasPermissions()) {
+            //noinspection MissingPermission
+            map.setMyLocationEnabled(false);
+          }
+          paused = true;
+        }
 
-            @Override
-            public void onHostDestroy() {
-                AirMapView.this.doDestroy();
-            }
-        };
+        @Override
+        public void onHostDestroy() {
+        }
+      };
 
         context.addLifecycleEventListener(lifecycleListener);
     }
@@ -261,20 +256,6 @@ private boolean hasPermissions() {
                 checkSelfPermission(getContext(), PERMISSIONS[1]) == PackageManager.PERMISSION_GRANTED;
     }
 
-    /*
-    onDestroy is final method so I can't override it.
-     */
-    public synchronized void doDestroy() {
-        if (lifecycleListener != null) {
-            context.removeLifecycleEventListener(lifecycleListener);
-            lifecycleListener = null;
-        }
-        if (!paused) {
-            onPause();
-        }
-        onDestroy();
-    }
-
     public void setRegion(ReadableMap region) {
         if (region == null) return;
 

example/android/build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.0'
+        classpath 'com.android.tools.build:gradle:2.2.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files