Help on Back Button

[Sreenu Vengala]

Hi Friends.

In my IM Application once user signout the application, it shows login screen,
from here user click on back button again showing the contact list screen.

How to remove activities from the stack, any one help on this.


Thanks..
Srinu

[Monu Tripathi]

When you launch a new Intent() that resolves to an Activity, the new Activity is launched and brought in front (and your existing Activity is pushed behind). To paraphrase, a new Activity is created, started,displayed and pushed on the History stack. When you press the back button the current Activity is "pop"ed from the Stack and removed from display. This will bring your initial,earlier activity to the front.

If you don't want your calling activity to remain on the stack, you should call finish() after launching the intent that resolves to a new Activity.
Take some time to read the following article:
Activities and Tasks