Close all running activities in an android application?

Question

I create one application and never use finish() for each activity. If my user clicks on the logout button it goes to the previous page.

How can I close my previous

Answer 1

EDIT

Sam Janz answer is cleaner than this method. Use the intent flags to your advantage

When the user presses log out:

Intent intent = new Intent(this,MyHomeActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putBooleanExtra("finishApplication", true);
startActivity(intent);

Then in MyHomeActivity (Your start activity) in onResume:

if(getIntent().getBooleanExtra("finishApplication", false){
   finish();
}

This way you don't have to have checks in all your activity's only the Home activity.

---

Dirtier option:

Create a static boolean variable in a singleton somewhere (probably in a class that extends application);

public static boolean loggingOut = false;

When the user presses log out set this to true and call finish on that activity.

YourApplication.loggingOut = true;
finish();

In each activity in onResume()

if(loggingOut){
   finish();
}

Ensure you set this boolean back to false in your main/start up activity:

if(loggingOut){
   finish();
   YourApplication.loggingOut = false;
}

If you also want the back button to do it, override onBackPressed(), that would then also do

@Override
public void onBackPressed(){
     YourApplication.loggingOut = true;
     super.onBackPressed();
}