From d5682e8b7d7686736aee7ee243dfdeadffc01ab9 Mon Sep 17 00:00:00 2001
From: Amit Davidi <amitd@wix.com>
Date: Wed, 16 Nov 2016 15:36:04 +0200
Subject: [PATCH] Extensibility refactor step 2

---
 .../src/main/AndroidManifest.xml              |   6 +-
 .../core/AppLaunchHelper.java                 |  43 +++++++
 .../core/AppLifecycleFacade.java              |  14 ++
 .../core/INotificationsApplication.java       |   8 ++
 .../core/IPushNotification.java               |  22 ++++
 .../core/NotificationIntentAdapter.java       |   2 +-
 .../core/ProxyActivity.java                   |  28 ----
 .../core/ProxyService.java                    |  25 ++++
 .../core/PushNotification.java                | 120 +++++++++++-------
 .../core/RNNotificationsModule.java           |  27 +++-
 .../core/ReactAppLifecycleFacade.java         |  94 ++++++++++++++
 .../GcmInstanceIdRefreshHandlerService.java   |  13 +-
 .../gcm/GcmMessageHandlerService.java         |   6 +-
 .../gcm/GcmToken.java                         |   2 +-
 14 files changed, 323 insertions(+), 87 deletions(-)
 create mode 100644 example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/AppLaunchHelper.java
 create mode 100644 example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/AppLifecycleFacade.java
 create mode 100644 example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/INotificationsApplication.java
 create mode 100644 example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/IPushNotification.java
 delete mode 100644 example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/ProxyActivity.java
 create mode 100644 example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/ProxyService.java
 create mode 100644 example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/ReactAppLifecycleFacade.java

diff --git a/example/android/reactnativenotification/src/main/AndroidManifest.xml b/example/android/reactnativenotification/src/main/AndroidManifest.xml
index edc0c2d..8061e77 100644
--- a/example/android/reactnativenotification/src/main/AndroidManifest.xml
+++ b/example/android/reactnativenotification/src/main/AndroidManifest.xml
@@ -14,11 +14,9 @@
     <application>
 
         <!--
-         A proxy-activity that either launches the main activity or resumes the currently running app.
-         Required in order to keep the initial intent so it could be retrieved by the JS client.
-         Note: we declare it in its own private affinity so that a running app stack wouldn't shadow its creation.
+         A proxy-service that gives the library an opportunity to do some work before launching/resuming the actual application task.
          -->
-        <activity android:name=".core.ProxyActivity" android:taskAffinity="com.wix.reactnativenotifications.core.ProxyActivity"/>
+        <service android:name=".core.ProxyService"/>
 
         <!--
          Google's ready-to-use GcmReceiver.
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/AppLaunchHelper.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/AppLaunchHelper.java
new file mode 100644
index 0000000..af7cfb8
--- /dev/null
+++ b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/AppLaunchHelper.java
@@ -0,0 +1,43 @@
+package com.wix.reactnativenotifications.core;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+public class AppLaunchHelper {
+    private static final String TAG = AppLaunchHelper.class.getSimpleName();
+
+    private static final String LAUNCH_FLAG_KEY_NAME = "launchedFromNotification";
+
+    public static Intent getLaunchIntent(Context appContext) {
+        try {
+            // The desired behavior upon notification opening is as follows:
+            // - If app is in foreground (and possibly has several activities in stack), simply keep it as-is in foreground.
+            // - If app is in background, bring it to foreground as-is (context stack untampered).
+            //   A distinction is made in this case such that if app went to back due to *back-button*, is should be recreated (this
+            //   is Android's native behavior).
+            // - If app is dead, launch it through the main context (as Android launchers do).
+            // Overall, THIS IS EXACTLY THE SAME AS ANDROID LAUNCHERS WORK. So, we use the same configuration (action, categories and
+            // flags) as they do.
+            final Intent helperIntent = appContext.getPackageManager().getLaunchIntentForPackage(appContext.getPackageName());
+            final Intent intent = new Intent(appContext, Class.forName(helperIntent.getComponent().getClassName()));
+            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
+            intent.putExtra(LAUNCH_FLAG_KEY_NAME, true);
+            return intent;
+        } catch (ClassNotFoundException e) {
+            // Note: this is an imaginary scenario cause we're asking for a class of our very own package.
+            Log.e(TAG, "Failed to launch/resume app", e);
+            return null;
+        }
+    }
+
+    public static boolean isLaunchIntentsActivity(Activity activity) {
+        final Intent helperIntent = activity.getPackageManager().getLaunchIntentForPackage(activity.getPackageName());
+        return activity.getLocalClassName().equals(helperIntent.getComponent().getClassName());
+    }
+
+    public static boolean isLaunchIntent(Intent intent) {
+        return intent.getBooleanExtra(LAUNCH_FLAG_KEY_NAME, false);
+    }
+}
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/AppLifecycleFacade.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/AppLifecycleFacade.java
new file mode 100644
index 0000000..04eae26
--- /dev/null
+++ b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/AppLifecycleFacade.java
@@ -0,0 +1,14 @@
+package com.wix.reactnativenotifications.core;
+
+public interface AppLifecycleFacade {
+
+    interface AppVisibilityListener {
+        void onAppVisible();
+        void onAppNotVisible();
+    }
+
+    boolean isReactInitialized();
+    boolean isAppVisible();
+    void addVisibilityListener(AppVisibilityListener listener);
+    void removeVisibilityListener(AppVisibilityListener listener);
+}
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/INotificationsApplication.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/INotificationsApplication.java
new file mode 100644
index 0000000..1500514
--- /dev/null
+++ b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/INotificationsApplication.java
@@ -0,0 +1,8 @@
+package com.wix.reactnativenotifications.core;
+
+import android.content.Context;
+import android.os.Bundle;
+
+public interface INotificationsApplication {
+    IPushNotification getPushNotification(Context context, Bundle bundle, AppLifecycleFacade facade);
+}
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/IPushNotification.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/IPushNotification.java
new file mode 100644
index 0000000..5b1d8e9
--- /dev/null
+++ b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/IPushNotification.java
@@ -0,0 +1,22 @@
+package com.wix.reactnativenotifications.core;
+
+public interface IPushNotification {
+    class InvalidNotificationException extends Exception {
+        public InvalidNotificationException(String detailMessage) {
+            super(detailMessage);
+        }
+    }
+
+    /**
+     * Handle an event where notification has just been received.
+     * @throws InvalidNotificationException
+     */
+    void onReceived() throws InvalidNotificationException;
+
+    /**
+     * Handle an event where notification has already been dispatched and is not being opened by the device user.
+     */
+    void onOpened();
+
+    PushNotificationProps asProps();
+}
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/NotificationIntentAdapter.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/NotificationIntentAdapter.java
index 2bdd992..6868387 100644
--- a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/NotificationIntentAdapter.java
+++ b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/NotificationIntentAdapter.java
@@ -11,7 +11,7 @@ public class NotificationIntentAdapter {
 
     public static PendingIntent createPendingNotificationIntent(Context appContext, Intent intent, PushNotificationProps notification) {
         intent.putExtra(PUSH_NOTIFICATION_EXTRA_NAME, notification.asBundle());
-        return PendingIntent.getActivity(appContext, PENDING_INTENT_CODE, intent, 0);
+        return PendingIntent.getService(appContext, PENDING_INTENT_CODE, intent, 0);
     }
 
     public static Bundle extractPendingNotificationDataFromIntent(Intent intent) {
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/ProxyActivity.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/ProxyActivity.java
deleted file mode 100644
index bbeaac9..0000000
--- a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/ProxyActivity.java
+++ /dev/null
@@ -1,28 +0,0 @@
-package com.wix.reactnativenotifications.core;
-
-import android.app.Activity;
-import android.os.Bundle;
-import android.util.Log;
-
-import static com.wix.reactnativenotifications.Defs.LOGTAG;
-
-/**
- * The front-end (hidden) activity for handling notification <b>opening</b> actions triggered by the
- * device user (i.e. upon tapping on them in the notifications drawer).
- */
-public class ProxyActivity extends Activity {
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        Log.d(LOGTAG, "ProxyActivity.onCreate, " + getIntent().getExtras());
-
-        final Bundle rawNotificationData = NotificationIntentAdapter.extractPendingNotificationDataFromIntent(getIntent());
-        if (rawNotificationData != null) {
-            new PushNotification(this, rawNotificationData).onOpened(this);
-        }
-
-        finish();
-    }
-}
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/ProxyService.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/ProxyService.java
new file mode 100644
index 0000000..4523b63
--- /dev/null
+++ b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/ProxyService.java
@@ -0,0 +1,25 @@
+package com.wix.reactnativenotifications.core;
+
+import android.app.IntentService;
+import android.content.Intent;
+import android.os.Bundle;
+import android.util.Log;
+
+public class ProxyService extends IntentService {
+
+    private static final String TAG = ProxyService.class.getSimpleName();
+
+    public ProxyService() {
+        super("notificationsProxyService");
+    }
+
+    @Override
+    protected void onHandleIntent(Intent intent) {
+        Log.d(TAG, "New intent: "+intent);
+        final Bundle notificationData = NotificationIntentAdapter.extractPendingNotificationDataFromIntent(intent);
+        final IPushNotification pushNotification = PushNotification.get(this, notificationData, ReactAppLifecycleFacade.get());
+        if (pushNotification != null) {
+            pushNotification.onOpened();
+        }
+    }
+}
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/PushNotification.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/PushNotification.java
index 47f5d5b..b630c73 100644
--- a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/PushNotification.java
+++ b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/PushNotification.java
@@ -1,14 +1,11 @@
 package com.wix.reactnativenotifications.core;
 
-import android.app.Activity;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
-import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
-import android.util.Log;
 
 import com.facebook.react.ReactApplication;
 import com.facebook.react.ReactInstanceManager;
@@ -17,36 +14,54 @@ import com.facebook.react.bridge.Arguments;
 import com.facebook.react.bridge.ReactContext;
 import com.facebook.react.bridge.WritableMap;
 import com.facebook.react.modules.core.DeviceEventManagerModule;
+import com.wix.reactnativenotifications.core.AppLifecycleFacade.AppVisibilityListener;
 
-import static com.wix.reactnativenotifications.Defs.LOGTAG;
 import static com.wix.reactnativenotifications.Defs.NOTIFICATION_OPENED_EVENT_NAME;
 import static com.wix.reactnativenotifications.Defs.NOTIFICATION_RECEIVED_EVENT_NAME;
 
-public class PushNotification {
+public class PushNotification implements IPushNotification {
 
-    public static class InvalidNotificationException extends Exception {
-        public InvalidNotificationException(String detailMessage) {
-            super(detailMessage);
+    final private Context mContext;
+    final private AppLifecycleFacade mAppLifecycleFacade;
+    final private PushNotificationProps mNotificationProps;
+    final private AppVisibilityListener mAppVisibilityListener = new AppVisibilityListener() {
+        @Override
+        public void onAppVisible() {
+            mAppLifecycleFacade.removeVisibilityListener(this);
+            dispatchImmediately();
         }
-    }
 
-    private final Context mAppContext;
-    private PushNotificationProps mNotificationProps;
+        @Override
+        public void onAppNotVisible() {}
+    };
 
-    public PushNotification(Context context, Bundle bundle) {
-        mAppContext = context.getApplicationContext();
+    protected PushNotification(Context context, Bundle bundle, AppLifecycleFacade appLifecycleFacade) {
+        mContext = context;
+        mAppLifecycleFacade = appLifecycleFacade;
         mNotificationProps = new PushNotificationProps(bundle);
     }
 
+    public static IPushNotification get(Context context, Bundle bundle, AppLifecycleFacade facade) {
+        Context appContext = context.getApplicationContext();
+        if (appContext instanceof INotificationsApplication) {
+            return ((INotificationsApplication) appContext).getPushNotification(context, bundle, facade);
+        }
+        return new PushNotification(context, bundle, facade);
+    }
+
+    @Override
     public void onReceived() throws InvalidNotificationException {
         postNotification();
         notifyReceivedToJS();
     }
 
-    public void onOpened(Activity hostActivity) {
-        digestNotification(hostActivity);
+    @Override
+    public void onOpened() {
+        digestNotification();
+        deleteAllPostedNotifications();
     }
 
+    @Override
     public PushNotificationProps asProps() {
         return mNotificationProps.copy();
     }
@@ -57,28 +72,50 @@ public class PushNotification {
         postNotification((int) System.currentTimeMillis(), notification);
     }
 
-    protected void digestNotification(Activity activity) {
-        final ReactContext reactContext = getRunningReactContext();
-        if (reactContext != null) {
-            launchOrResumeApp(activity);
-            notifyOpenedToJS(reactContext);
+    protected void digestNotification() {
+        if (!mAppLifecycleFacade.isReactInitialized()) {
+            setAsInitialNotification();
+            launchOrResumeApp();
+            return;
+        }
+
+        if (mAppLifecycleFacade.isAppVisible()) {
+            dispatchImmediately();
         } else {
-            InitialNotification.set(mNotificationProps);
-            launchOrResumeApp(activity);
+            dispatchUponVisibility();
         }
     }
 
+    protected void setAsInitialNotification() {
+        InitialNotification.set(mNotificationProps);
+    }
+
+    protected void dispatchImmediately() {
+        notifyOpenedToJS();
+    }
+
+    protected void dispatchUponVisibility() {
+        mAppLifecycleFacade.addVisibilityListener(getIntermediateAppVisibilityListener());
+
+        // Make the app visible so that we'll dispatch the notification opening when visibility changes to 'true' (see
+        // above listener registration).
+        launchOrResumeApp();
+    }
+
+    protected AppVisibilityListener getIntermediateAppVisibilityListener() {
+        return mAppVisibilityListener;
+    }
+
     protected PendingIntent getCTAPendingIntent() {
-        // Note: we launch the proxy activity, assuming it'll take it from there.
-        final Intent cta = new Intent(mAppContext, ProxyActivity.class);
-        return NotificationIntentAdapter.createPendingNotificationIntent(mAppContext, cta, mNotificationProps);
+        final Intent cta = new Intent(mContext, ProxyService.class);
+        return NotificationIntentAdapter.createPendingNotificationIntent(mContext, cta, mNotificationProps);
     }
 
     protected Notification buildNotification(PendingIntent intent) {
-        final Notification.Builder notificationBuilder = new Notification.Builder(mAppContext)
+        final Notification.Builder notificationBuilder = new Notification.Builder(mContext)
                 .setContentTitle(mNotificationProps.getTitle())
                 .setContentText(mNotificationProps.getBody())
-                .setSmallIcon(mAppContext.getApplicationInfo().icon)
+                .setSmallIcon(mContext.getApplicationInfo().icon)
                 .setContentIntent(intent)
                 .setDefaults(Notification.DEFAULT_ALL)
                 .setAutoCancel(true);
@@ -87,17 +124,17 @@ public class PushNotification {
     }
 
     protected void postNotification(int id, Notification notification) {
-        final NotificationManager notificationManager = (NotificationManager) mAppContext.getSystemService(Context.NOTIFICATION_SERVICE);
+        final NotificationManager notificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
         notificationManager.notify(id, notification);
     }
 
     protected ReactContext getRunningReactContext() {
-        final ReactNativeHost rnHost = ((ReactApplication) mAppContext).getReactNativeHost();
+        final ReactNativeHost rnHost = ((ReactApplication) mContext.getApplicationContext()).getReactNativeHost();
         if (!rnHost.hasInstance()) {
             return null;
         }
 
-        final ReactInstanceManager instanceManager = ((ReactApplication) mAppContext).getReactNativeHost().getReactInstanceManager();
+        final ReactInstanceManager instanceManager = rnHost.getReactInstanceManager();
         final ReactContext reactContext = instanceManager.getCurrentReactContext();
         if (reactContext == null || !reactContext.hasActiveCatalystInstance()) {
             return null;
@@ -129,22 +166,13 @@ public class PushNotification {
         }
     }
 
-    protected void launchOrResumeApp(Activity activity) {
-        // The desired behavior upon notification opening is as follows:
-        // - If app is in foreground (and possibly has several activities in stack), simply keep it as-is in foreground.
-        // - If app is in background, bring it to foreground as-is (activity stack untampered).
-        //   A distinction is made in this case such that if app went to back due to *back-button*, is should be recreated.
-        // - If app is dead, launch it through the main activity (as Android launchers do).
-        // THIS IS EXACTLY THE SAME AS ANDROID LAUNCHERS WORK. So, we use the same configuration (action, categories and
-        // flags) as they do.
-        final Intent helperIntent = mAppContext.getPackageManager().getLaunchIntentForPackage(mAppContext.getPackageName());
-        try {
-            final Intent intent = Intent.makeMainActivity(new ComponentName(mAppContext, Class.forName(helperIntent.getComponent().getClassName())));
-            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
-            activity.startActivity(intent);
-        } catch (ClassNotFoundException e) {
-            Log.e(LOGTAG, "Failed to launch/resume app", e);
-        }
+    protected void launchOrResumeApp() {
+        final Intent intent = AppLaunchHelper.getLaunchIntent(mContext);
+        mContext.startActivity(intent);
     }
 
+    protected void deleteAllPostedNotifications() {
+        final NotificationManager notificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
+        notificationManager.cancelAll();
+    }
 }
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/RNNotificationsModule.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/RNNotificationsModule.java
index 94995d8..c6fa5ea 100644
--- a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/RNNotificationsModule.java
+++ b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/RNNotificationsModule.java
@@ -1,5 +1,7 @@
 package com.wix.reactnativenotifications.core;
 
+import android.content.Context;
+import android.content.Intent;
 import android.util.Log;
 
 import com.facebook.react.bridge.Arguments;
@@ -7,8 +9,7 @@ import com.facebook.react.bridge.Promise;
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.bridge.ReactContextBaseJavaModule;
 import com.facebook.react.bridge.ReactMethod;
-import com.wix.reactnativenotifications.gcm.GcmToken;
-import com.wix.reactnativenotifications.gcm.IGcmToken;
+import com.wix.reactnativenotifications.gcm.GcmInstanceIdRefreshHandlerService;
 
 import static com.wix.reactnativenotifications.Defs.LOGTAG;
 
@@ -16,6 +17,8 @@ public class RNNotificationsModule extends ReactContextBaseJavaModule {
 
     public RNNotificationsModule(ReactApplicationContext reactContext) {
         super(reactContext);
+
+        ReactAppLifecycleFacade.get().onAppInit(reactContext);
     }
 
     @Override
@@ -26,12 +29,18 @@ public class RNNotificationsModule extends ReactContextBaseJavaModule {
     @Override
     public void initialize() {
         Log.d(LOGTAG, "Native module init");
-        IGcmToken gcmToken = GcmToken.get(getReactApplicationContext().getApplicationContext());
-        gcmToken.onAppReady();
+
+        final Context appContext = getReactApplicationContext().getApplicationContext();
+        final Intent tokenFetchIntent = new Intent(appContext, GcmInstanceIdRefreshHandlerService.class);
+        tokenFetchIntent.putExtra(GcmInstanceIdRefreshHandlerService.EXTRA_IS_APP_INIT, true);
+        appContext.startService(tokenFetchIntent);
     }
 
+
+
     @ReactMethod
     public void getInitialNotification(final Promise promise) {
+        Log.d(LOGTAG, "Native method invocation: getInitialNotification");
         Object result = null;
 
         try {
@@ -45,4 +54,14 @@ public class RNNotificationsModule extends ReactContextBaseJavaModule {
             promise.resolve(result);
         }
     }
+
+    @ReactMethod
+    public void refreshToken() {
+        Log.d(LOGTAG, "Native method invocation: refreshToken()");
+
+        final Context appContext = getReactApplicationContext().getApplicationContext();
+        final Intent tokenFetchIntent = new Intent(appContext, GcmInstanceIdRefreshHandlerService.class);
+        tokenFetchIntent.putExtra(GcmInstanceIdRefreshHandlerService.EXTRA_MANUAL_REFRESH, true);
+        appContext.startService(tokenFetchIntent);
+    }
 }
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/ReactAppLifecycleFacade.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/ReactAppLifecycleFacade.java
new file mode 100644
index 0000000..f1d6639
--- /dev/null
+++ b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/core/ReactAppLifecycleFacade.java
@@ -0,0 +1,94 @@
+package com.wix.reactnativenotifications.core;
+
+import android.util.Log;
+
+import com.facebook.react.bridge.LifecycleEventListener;
+import com.facebook.react.bridge.ReactContext;
+
+import java.util.Set;
+import java.util.concurrent.CopyOnWriteArraySet;
+
+import static com.wix.reactnativenotifications.Defs.LOGTAG;
+
+public class ReactAppLifecycleFacade implements AppLifecycleFacade {
+
+    private static ReactAppLifecycleFacade sInstance = new ReactAppLifecycleFacade();
+
+    private ReactContext mReactContext;
+    private boolean mIsVisible;
+    private Set<AppVisibilityListener> mListeners = new CopyOnWriteArraySet<>();
+
+    public static ReactAppLifecycleFacade get() {
+        return sInstance;
+    }
+
+    public synchronized void onAppInit(ReactContext reactContext) {
+        mReactContext = reactContext;
+        mIsVisible = false;
+
+        reactContext.addLifecycleEventListener(new LifecycleEventListener() {
+            @Override
+            public void onHostResume() {
+                Log.d(LOGTAG, "onHostResume");
+                switchToVisible();
+            }
+
+            @Override
+            public void onHostPause() {
+                switchToInvisible();
+            }
+
+            @Override
+            public void onHostDestroy() {
+                switchToInvisible();
+                Log.d(LOGTAG, "onHostDestroy");
+                mReactContext.removeLifecycleEventListener(this);
+                mReactContext = null;
+            }
+        });
+    }
+
+    @Override
+    public synchronized boolean isReactInitialized() {
+        if (mReactContext == null) {
+            return false;
+        }
+
+        return mReactContext.hasActiveCatalystInstance();
+    }
+
+    @Override
+    public boolean isAppVisible() {
+        return mIsVisible;
+    }
+
+    @Override
+    public void addVisibilityListener(AppVisibilityListener listener) {
+        mListeners.add(listener);
+    }
+
+    @Override
+    public void removeVisibilityListener(AppVisibilityListener listener) {
+        mListeners.remove(listener);
+    }
+
+    private synchronized void switchToVisible() {
+        if (!mIsVisible) {
+            Log.d(LOGTAG, "App is now visible");
+            mIsVisible = true;
+            for (AppVisibilityListener listener : mListeners) {
+                listener.onAppVisible();
+            }
+        }
+    }
+
+    private synchronized void switchToInvisible() {
+        if (mIsVisible) {
+            Log.d(LOGTAG, "App is now not visible");
+            mIsVisible = false;
+            for (AppVisibilityListener listener : mListeners) {
+                listener.onAppNotVisible();
+            }
+        }
+    }
+}
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/gcm/GcmInstanceIdRefreshHandlerService.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/gcm/GcmInstanceIdRefreshHandlerService.java
index f3b96e4..3aa7aa9 100644
--- a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/gcm/GcmInstanceIdRefreshHandlerService.java
+++ b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/gcm/GcmInstanceIdRefreshHandlerService.java
@@ -5,6 +5,9 @@ import android.content.Intent;
 
 public class GcmInstanceIdRefreshHandlerService extends IntentService {
 
+    public static String EXTRA_IS_APP_INIT = "isAppInit";
+    public static String EXTRA_MANUAL_REFRESH = "doManualRefresh";
+
     public GcmInstanceIdRefreshHandlerService() {
         super(GcmInstanceIdRefreshHandlerService.class.getSimpleName());
     }
@@ -12,7 +15,15 @@ public class GcmInstanceIdRefreshHandlerService extends IntentService {
     @Override
     protected void onHandleIntent(Intent intent) {
         IGcmToken gcmToken = GcmToken.get(this);
-        if (gcmToken != null) {
+        if (gcmToken == null) {
+            return;
+        }
+
+        if (intent.getBooleanExtra(EXTRA_IS_APP_INIT, false)) {
+            gcmToken.onAppReady();
+        } else if (intent.getBooleanExtra(EXTRA_MANUAL_REFRESH, false)) {
+            gcmToken.onManualRefresh();
+        } else {
             gcmToken.onNewTokenReady();
         }
     }
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/gcm/GcmMessageHandlerService.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/gcm/GcmMessageHandlerService.java
index 290feeb..9c60ce7 100644
--- a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/gcm/GcmMessageHandlerService.java
+++ b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/gcm/GcmMessageHandlerService.java
@@ -4,7 +4,9 @@ import android.os.Bundle;
 import android.util.Log;
 
 import com.google.android.gms.gcm.GcmListenerService;
+import com.wix.reactnativenotifications.core.IPushNotification;
 import com.wix.reactnativenotifications.core.PushNotification;
+import com.wix.reactnativenotifications.core.ReactAppLifecycleFacade;
 
 import static com.wix.reactnativenotifications.Defs.LOGTAG;
 
@@ -15,9 +17,9 @@ public class GcmMessageHandlerService extends GcmListenerService {
         Log.d(LOGTAG, "New message from GCM: " + bundle);
 
         try {
-            final PushNotification notification = new PushNotification(getApplicationContext(), bundle);
+            final IPushNotification notification = PushNotification.get(getApplicationContext(), bundle, ReactAppLifecycleFacade.get());
             notification.onReceived();
-        } catch (PushNotification.InvalidNotificationException e) {
+        } catch (IPushNotification.InvalidNotificationException e) {
             // A GCM message, yes - but not the kind we know how to work with.
             Log.v(LOGTAG, "GCM message handling aborted", e);
         }
diff --git a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/gcm/GcmToken.java b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/gcm/GcmToken.java
index 402c546..b11a6b5 100644
--- a/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/gcm/GcmToken.java
+++ b/example/android/reactnativenotification/src/main/java/com/wix/reactnativenotifications/gcm/GcmToken.java
@@ -23,7 +23,7 @@ public class GcmToken implements IGcmToken {
 
     protected static String sToken;
 
-    public GcmToken(Context appContext) {
+    protected GcmToken(Context appContext) {
         if (!(appContext instanceof ReactApplication)) {
             throw new IllegalStateException("Application instance isn't a react-application");
         }
-- 
2.26.2