Listening to React-Native life-cycle events in your custom Views or Modules

LifecycleEventLIstener.java

public class MyView extends SimpleViewManager<MapView> {
    public static final String TAG = "MyView";

    @Override
    public String getName() {
        return TAG;
    }

    @Override
    protected MapView createViewInstance(ThemedReactContext context) {
        // Create listener:
        LifecycleEventListener listener = new LifecycleEventListener() {
            @Override
            public void onHostResume() {
                Log.i(TAG, "- onResume");
            }

            @Override
            public void onHostPause() {
                Log.i(TAG, "- onPauase");
            }

            @Override
            public void onHostDestroy() {
              Log.i(TAG, "- onDestroy");
            }
        };
        // Add it.  Done.
        context.addLifecycleEventListener(listener);
    }
}