How to finish multiple activities on logout android

Question

In my app i am starting activities one after the another and not finishing any activity before calling another. But when user presses logout button then i want to finish all the activities from the stack and start login activity.

Activity Login(finish & call) --> Activity B --> Activity C--> Activity D --> Logout -->Acitivity Login.

If user presses back key on login activity then he returns to Activity C in my case... but i want to avoid that.

Answer 1

What you should do is call Login activity, and clear all activities above it in the stack.

Intent intent = new Intent(this, Login.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

This will flag it to create a new login activity, not just resume the previous one. And clear all activities above it. (B, C, D).