FCM Android data message

Question

I am receiving the notification message even if the app is in the background, but whenever a notification is received it automatically opens the activity (even if the user doesn't click on the notification).

My onMessageReceived is

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    Bundle b = new Bundle();
    if (data.containsKey("click_action")) {
        if(data.containsValue("postlike") || data.containsValue("comment") || data.containsValue("newpost")){
            b.putString("PostId", data.get("post_id").toString());
            Firebase_Action_Click.startActivity(data.get("click_action"), b, this);
        } else {
            Intent intent = new Intent(this, ActivityMain.class);
            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            pendingIntent = PendingIntent.getActivity(this, 0, intent,PendingIntent.FLAG_ONE_SHOT);
        }
    }

    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
        .setSmallIcon(R.drawable.notification_icon)
        .setContentText(data.get("body"))
        .setAutoCancel(true)
        .setSound(defaultSoundUri)
        .setContentIntent(pendingIntent);

    NotificationManager notificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    notificationManager.notify(0, notificationBuilder.build());
}

And in my Firebase_Action_Click

public static void startActivity(String className, Bundle extras, Context context) {
    Class cls = null;
    try {
        cls = Class.forName(className);
    } catch(ClassNotFoundException e){
        //means you made a wrong input in firebase console
    }

    Intent i = new Intent(context, cls);
    i.putExtras(extras);
    i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    context.startActivity(i);
}

And in my launcher activity I have added these lines,

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    if (intent.hasExtra("click_action")) {
        Firebase_Action_Click.startActivity(intent.getStringExtra("click_action"), intent.getExtras(), this);
    }
}

Everything goes fine but the only problem I face is even if the app is in the background and I get a notification it automatically opens the application.

I want the same action to be done only when the user clicks on the Notification.

Could anyone help me on this, Thanks in advance

Answer 1

It fires the Activity because you launch the Activity from the onMessageReceived function. So if you want to launch the Activity when you click on your Notification you may need to start the Activity as your PendingIntent.

I would like to recommend simple modification in your code. Your startActivity function in Firebase_Action_Click may return the Intent it has created and look like this.

public static Intent startActivity(String className, Bundle extras, Context context) {
    Class cls = null;
    try {
        cls = Class.forName(className);
    } catch(ClassNotFoundException e){
        //means you made a wrong input in firebase console
    }

    Intent i = new Intent(context, cls);
    i.putExtras(extras);
    i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

    return i; // Return the intent from here. 
}

Now in your onMessageReceived function, you need to set a PendingIntent too inside if(data.containsValue("postlike") || data.containsValue("comment") || data.containsValue("newpost")) - this if statement, like the one you set for the else part. So your code might look like this.

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    Bundle b = new Bundle();

    if (data.containsKey("click_action")) {
        if(data.containsValue("postlike") || data.containsValue("comment") || data.containsValue("newpost")) {
            b.putString("PostId", data.get("post_id").toString());
            Intent intent = Firebase_Action_Click.startActivity(data.get("click_action"), b, this);

            // Now add the flags and create pendingIntent here
            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);

        } else {
            Intent intent = new Intent(this, ActivityMain.class);
            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);
        }
    }

    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
        .setSmallIcon(R.drawable.notification_icon)
        .setContentText(data.get("body"))
        .setAutoCancel(true)
        .setSound(defaultSoundUri)
        .setContentIntent(pendingIntent);

    NotificationManager notificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    notificationManager.notify(0, notificationBuilder.build());
}

Now your notification system should work fine.