i am Trying more Flags to prevent the Activity to be opened more than one time at the Same time

Question

i tried Flags like

 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |Intent.FLAG_ACTIVITY_CLEAR_TASK);

i Login to my application and open the home page > when i receive a notification and preessed on it to see details at home page it opened well But the previous

Answer 1

You can achieve this with the help of launch mode

go to manifest where your activity is declared. And add following attribute to your activity declaration.

android:launchMode="singleTask"

And in your activity class ovveride following method

public void onNewIntent(Intent intent) {
   setIntent(intent);
   //do other stuff with new intent
}

I will also suggest you to read more about activity launch mode https://developer.android.com/guide/topics/manifest/activity-element.html