Android: Clear Activity History

I've faced with one problem - clearing activity history. I have the following consequence where my problem appears: A(SplashScreen)->B(GuestScreen)->C(Screen for signed user

Solution 1:

I didn't understand your question 100%

I think you are facing problem with activity stack and CLEAR_TOP

so use startActivityForResult instead of startActivity

Solution 2:

The way we fixed it is taking a static boolean variable in the immediate first activity .Say your first activity is A,In A declare variable as below

publicstaticboolean closeAllActivities=false;

Then in rest of all activities place the below code in onResume()

protected void onResume() {
super.onResume();
if(A.closeAllActivities)
{       
    finish();   
}
else
{
    // TODO your requirement inside onResume
}
      }

And wherever u would like to exit the application set as

A.closeAllActivities=true;//It exits all the activities one after other.

Solution 3:

It seems I have managed to fix it but it is still a bit strange. I have set launchMode=singleInstance to A and B activities. And call any activities without any flags. No black screen with 1 second delay between activity`s calling. A bit strange solution because google not recommend use singleInstance or singleTask for general situations, I think it's general. If someone will find a better solution you are welcome.

UPDATE: One more very important thing when build and start apk via IDE. Some kind of IDE start app wrongly see this post. Due to it stack behaviour can be changed.