Android how to close a running app on back press?

Question

How to exit from an app on back press of main activity? I am using this code, but its finish main activity and show other activities from back stack.

@Override
    public void onBackPressed() {
        finish();
    }

There are many posts on this topic already, i.e. http://stackoverflow.com/questions/6330200/how-to-quit-android-application-programmatically — PPartisan, Oct 30 '15 at 10:09

score 13 · Accepted Answer · edited Nov 21 '16 at 08:39

13

I tried this and its work for me really well,as I am working on app, where once session get expired, user is able to see only few views and remain hidden.

    @Override
    public void onBackPressed() {
        moveTaskToBack(true);
    }

edited Nov 21 '16 at 08:39

Amir

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answered Oct 30 '15 at 10:17

Amna Mirza

705
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5
21

score 4 · Answer 2 · answered Oct 30 '15 at 10:13

4

You can use

android:noHistory="true" in manifest under activity tag like this

    <activity 
        android:name=".MainActivity"
        android:noHistory="true">
    </activity>

answered Oct 30 '15 at 10:13

Muhammad Umair Shafique

2,475
1
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39

score 3 · Answer 3 · answered Oct 30 '15 at 10:08

3

Try this

@override
public void onBackPressed(){
Intent a = new Intent(Intent.ACTION_MAIN);
a.addCategory(Intent.CATEGORY_HOME);
a.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(a);
}

answered Oct 30 '15 at 10:08

Burhanuddin Rashid

5,260
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score 3 · Answer 4 · answered Oct 30 '15 at 10:08

3

You can also try this,

@Override
    public void onBackPressed() {
       int pid = android.os.Process.myPid();
       android.os.Process.killProcess(pid);    
}

answered Oct 30 '15 at 10:08

Arjun

736
1
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score 3 · Answer 5 · answered Oct 30 '15 at 10:10

You can try this one :

@Override
    public void onBackPressed() {
        // TODO Auto-generated method stub

        new AlertDialog.Builder(Activityname.this)
        .setTitle("Title")
        .setMessage("Do you really want to exit?")
        .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) { 
                ActivityCompat.finishAffinity(Activityname.this);
                finish();   
            }
        })
        .setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) { 
                dialog.dismiss();
            }
        })
        .setIcon(android.R.drawable.ic_dialog_alert)
        .show();

    }

Hope it will solve your problem

score 1 · Answer 6 · edited May 23 '17 at 12:10

1

Already asked. most popular answer:

getActivity().finish();
System.exit(0);

edited May 23 '17 at 12:10

Community

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1

answered Oct 30 '15 at 10:10

lewkka

1,019
15
25

my java teacher said System.exit(0); would be like jumping out the window instead of using the door. – user3088071 Jun 12 '22 at 00:12

Vinay Pandravada · Answer 7 · 2015-10-30T10:18:27.747

0

Hi try adding this code inside onBackPressed:

getActivity().finish();
System.exit(0);

edited Oct 30 '15 at 10:18

answered Oct 30 '15 at 10:09

Vinay Pandravada

88
14

score 0 · Answer 8 · edited Apr 19 '20 at 14:00

@Override
public void onBackPressed() {

    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setMessage("Are you sure you want to Exit ?")
            .setCancelable(false)
            .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialogInterface, int i) {
                    moveTaskToBack(true);
                }
            })
            .setNegativeButton("No", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialogInterface, int i) {
                    dialogInterface.cancel();
                }
            });
    AlertDialog alertDialog = builder.create();
    alertDialog.show();
}

score -1 · Answer 9 · answered Oct 30 '15 at 10:28

Try this,

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

score -2 · Answer 10 · answered Oct 30 '15 at 10:33

try public void onBackPressed() { finish(); Intent intent = new Intent(Intent.ACTION_MAIN); intent.addCategory(Intent.CATEGORY_HOME); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); finish(); }

use finish(); after migrating from one activity to another

Android how to close a running app on back press?

10 Answers10