Java – Android – open or restart the application after clicking the push notification using the flag activity

I use push notifications in Android When I receive a push notification, if the application is still running, I want to open the application, otherwise I should open a new instance

I'm using it

PendingIntent contentIntent = PendingIntent.getActivity(this,notificationIntent,Intent.FLAG_ACTIVITY_CLEAR_TOP | 
    Intent.FLAG_ACTIVITY_SINGLE_TOP | 
    Intent.FLAG_ACTIVITY_NEW_TASK);

However, when I received the push notification, I clicked it and there was no response

How can I do this by using flagintent?

Solution

You need to set the intent flag on the intent You specify them in the call to get pendingintent Try this:

notificationIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | 
    Intent.FLAG_ACTIVITY_SINGLE_TOP | 
    Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent contentIntent = PendingIntent.getActivity(this,0);