close android application on press back button

Question

I have open many activity and now want to close all activity on click android back button

Means want to close application on button click

But Don't have idea about that

PLz help me about that..

And sorry for my bad english

[Refer here](http://stackoverflow.com/a/16480930/2345913) – CRUSADER Nov 22 '13 at 08:26 — CRUSADER, Nov 22 '13 at 08:26

score 1 · Accepted Answer · answered Nov 22 '13 at 08:32

Try this..

After exit from application start the application from first activity.

@Override
public void onBackPressed() {

    finish();          
    moveTaskToBack(true);
}

After exit from the application if you need open from the pervious displayed activity.

Try this.

@Override
    public void onBackPressed() {       

        moveTaskToBack(true);
    }

score 0 · Answer 2 · edited Nov 22 '13 at 08:47

0

You have to remove all the activities from stack and to do that you have to finish your current activity before going to next screen. To achieve this functionality the code is YourActivityname.this.finish();

edited Nov 22 '13 at 08:47

Harry

87,580
25
202
214

answered Nov 22 '13 at 08:27

Pankaj Arora

10,224
2
37
59

score 0 · Answer 3 · answered Nov 22 '13 at 08:34

If you want to close all stacked activities when the user presses the back button, it may be better not to stack them at all, that is, to close each activity that starts another activity. That is, instead of just startActivity(intent); you need startActivity(intent); finish();.

Please note that the back button means going back in the stack, so re-defining it may contradict the user expectations.

score 0 · Answer 4 · answered Nov 22 '13 at 08:37

@Override
public void onBackPressed() {

Intent intent = new Intent(this, YourMainClassName.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("EXITAPP", true);
startActivity(intent);
finish();
}

And then in your main class in onCreate method,

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

score 0 · Answer 5 · answered Nov 22 '13 at 08:38

One possible solution is to call your Launcher Activity with CLEAR_TOP flag. Then inside your Launcher Activity, finish it if its launched from Back button. Do as follows:

@Override
public void onBackPressed() {
Intent intent = new Intent(this, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("kill", true);
startActivity(intent);
finish();
}

Then inside MainActivity onCreate()

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

close android application on press back button

5 Answers5