Exit Application Android

Question

I have a problem with my apps,i want to close my app when clicking the back button. But When clicking back from this screen, application back to prev screen. I try to add all exit script, but not work, Help Please. My Script Is :

public void onBackPressed() {
    Exit = new AlertDialog.Builder(tab1.this).create();
    Exit.setTitle("Exit Program");
    Exit.setMessage("Exit?");
    Exit.setButton("Ya", new DialogInterface.OnClickListener() {

        public void onClick(DialogInterface dialog, int which) {
            android.os.Process.killProcess(android.os.Process.myPid());
            Intent intent = new Intent();
            System.exit(0);
            finish();
            System.runFinalizersOnExit(true);
            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            intent.setAction(Intent.ACTION_MAIN);
            intent.addCategory(Intent.CATEGORY_HOME);

            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);

        }
    });

    Exit.setButton2("No", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
        // here you can add functions
            Exit.dismiss();
        }
    });   


    Exit.show();
}

// Before 2.0
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {
        Exit = new AlertDialog.Builder(tab1.this).create();
        Exit.setTitle("Exit Program");
        Exit.setMessage("Exit?");
        Exit.setButton("Ya", new DialogInterface.OnClickListener() {

            public void onClick(DialogInterface dialog, int which) {
                // Progress
                android.os.Process.killProcess(android.os.Process.myPid());
                Intent intent = new Intent();
                System.exit(0);
                finish();
                System.runFinalizersOnExit(true);
                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                intent.setAction(Intent.ACTION_MAIN);
                intent.addCategory(Intent.CATEGORY_HOME);

                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                startActivity(intent);
            }
        });

        Exit.setButton2("No", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
            // here you can add functions
                Exit.dismiss();
            }
        });   


        Exit.show();

        return true;
    }

    return super.onKeyDown(keyCode, event);
}

This doesn't seem like a very good idea since it subverts the expected behavior of the back button. — Code-Apprentice, Sep 01 '14 at 04:37
I think if you have [searched](http://www.google.com/search?q=stop+exit+kill+android+app+programatically) enough you will have your answer. Also please see [this question](http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon). Welcome to StackOverflow btw :) — Keale, Sep 01 '14 at 04:44
Thx for comment and share link, this is very helpful for me :) — user3811450, Sep 01 '14 at 05:02

score 0 · Answer 1 · answered Sep 01 '14 at 04:30

0

Try this sequence :

    MYApplication.getInstance().clearApplicationData();
    android.os.Process.killProcess(android.os.Process.myPid());
    Intent intent1 = new Intent(Intent.ACTION_MAIN);
    intent1.addCategory(Intent.CATEGORY_HOME);
    intent1.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    startActivity(intent1);

    finish();

answered Sep 01 '14 at 04:30

KOTIOS

11,177
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thx for your comment, it's work, but i add script for start splash screen my apps before exit with your script. :) – user3811450 Sep 01 '14 at 05:04

score 0 · Answer 2 · answered Sep 01 '14 at 05:30

This is a fair and simple way of exiting an android app programmatically in my opinion:

Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
finish();

Hope it helps.

score -2 · Accepted Answer · edited Sep 01 '14 at 04:44

-2

Avoid killProcess
Try this code :

Intent startMain = new Intent(Intent.ACTION_MAIN);
startMain.addCategory(Intent.CATEGORY_HOME);
startMain.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
activity.startActivity(startMain);
System.exit(-1);

edited Sep 01 '14 at 04:44

SilentKiller

6,944
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answered Sep 01 '14 at 04:35

SweetWisher ツ

7,296
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74

You say "avoid `killProcess`, but `System.exit` is essentially the same. Neither one are typically used in Android development. – Alex Lockwood Sep 01 '14 at 05:00
thx for your comment, it's work, but i add script for start splash screen my apps before exit with your script. :) – user3811450 Sep 01 '14 at 05:04
99.9% of apps should not "exit" at all. Using `System.exit` is just plain wrong here. Please show me the `exit` button on this web page which, when clicked, closes my browser. – Simon Sep 01 '14 at 05:20

Exit Application Android

3 Answers3