Exit application on pressing back with confirmation

Question

I need functionality to exit from the complete application while pressing back button. currently i have a script that ask to press twice to exit application,

in that it finish the current activity but does not exits from application old visited activities are remain same. here is my code that i am using.

int i = 1;
@Override
public void onBackPressed() {       
    if (i == 1) {
        Toast.makeText(getApplicationContext(), "Press back once more to exit.", Toast.LENGTH_SHORT).show();
    } else if(i>1) {
        finish();
    }
    i++;
}

possible duplicate of [Android - Confirm app exit with toast](http://stackoverflow.com/questions/14006461/android-confirm-app-exit-with-toast) — 0101100101, Jul 21 '14 at 13:08
As per my knowledge, you can clear stack of your application only not others. Only Android OS task manager can have access of doing it. — VVB, Jul 21 '14 at 13:13
@deepak Sharma you have use flag like FLAG_ACTIVITY_REORDER_TO_FRONT in your application. — Bhavesh Jethani, Jul 21 '14 at 13:35

Bhavesh Jethani · Answer 1 · 2014-07-21T13:52:42.713

please try below code.

step 1: Create on Constant class

public class Constant
{
    public static int ACT_COUNT=0;
}

step 2:Create BaseActivity class

public class BaseActivity extends Activity
{
private static long back_pressed;
    @Override
    protected void onCreate(Bundle arg0)
    {
    super.onCreate(arg0);
    Constant.ACT_COUNT++;
    }


   @Override
   public void onBackPressed()
   {
    /** If you want to take confirmation then display Alert here...**/
        if(Constant.ACT_COUNT<=1)
        {
            if (back_pressed + 2000 > System.currentTimeMillis()) 
               finish(); /** otherwise directly exit from here...**/
            else 
               Toast.makeText(getBaseContext(), "Press once again to exit!", Toast.LENGTH_SHORT).show();

            back_pressed = System.currentTimeMillis();
        }
        else
            super.onBackPressed();
    }

    @Override
    protected void onDestroy()
    {
        super.onDestroy();
        Constant.ACT_COUNT--;
    }

}

NOTE: You have to use BaseActivity instead of Activity in your application except login activity and registration activity if it is in your application.

score 0 · Answer 2 · answered Nov 13 '18 at 10:45

0

finish(); doesn't close the application, just finishes the current activity and takes you back to the previous activity running. Instead use System.exit(1);

answered Nov 13 '18 at 10:45

James Ele

111
3
13

Pratik Butani · Answer 3 · 2014-07-21T13:17:23.170

-2

Get back press work only at second press and notify user to press again to exit.

private static long back_pressed;

@Override
public void onBackPressed()
{
        /** If you want to take confirmation then display Alert here...**/
        if (back_pressed + 2000 > System.currentTimeMillis()) 
           finish(); /** otherwise directly exit from here...**/
        else 
           Toast.makeText(getBaseContext(), "Press once again to exit!", Toast.LENGTH_SHORT).show();

        back_pressed = System.currentTimeMillis();
}

Ref. Android Snippet

edited Jul 21 '14 at 13:17

answered Jul 21 '14 at 13:05

Pratik Butani

60,504
58
273
437

nice answer, what a logic. – Bhavesh Jethani Jul 21 '14 at 13:09
This doesn't answer the "question." – 323go Jul 21 '14 at 13:09
@323go What is problem with answer? – Pratik Butani Jul 21 '14 at 13:10
The question was why it doesn't exit, not how to exit with confirmation. Please read the question. – 323go Jul 21 '14 at 13:13
@323go If he wants to take confirmation then show AlertDialog `onBackPressed()` then Exit on `Yes`, but he want to press again then exit so my answer is correct. you can add your answer if you have other solution. – Pratik Butani Jul 21 '14 at 13:19
Hey may i know why downvoting my answer? Is there any problem? – Pratik Butani Jul 21 '14 at 13:22

Exit application on pressing back with confirmation

3 Answers3