how to close app when i press back?

Question

I'm installing my app then save data using Main Activity and going to another Fragment activity.Next time I'm starting my App always preview second Fragment then I press back going to Main Activity But I don't want to go Main Activity.I want press back button close My App.I try this

@Override
public void onResume() {
    super.onResume();

    getView().setFocusableInTouchMode(true);
    getView().requestFocus();
    getView().setOnKeyListener(new View.OnKeyListener() {
        @Override
        public boolean onKey(View v, int keyCode, KeyEvent event) {
            if (event.getAction() == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) {
                // handle back button's click listener
                Toast.makeText(getActivity(), "Back press", Toast.LENGTH_SHORT).show();
                return true;
            }
            return false;
        }
    });

}

http://stackoverflow.com/questions/2092951/how-to-close-android-application go through this link — saeed, Mar 09 '16 at 07:45
Possible duplicate of [Close app when hitting back button on android](http://stackoverflow.com/questions/5902464/close-app-when-hitting-back-button-on-android) — Faruk Yazici, Mar 09 '16 at 08:13

score 3 · Accepted Answer · answered Mar 09 '16 at 07:45

3

in your Mainactivity, after the line startActivity() for starting second activity add this line this.finish();

answered Mar 09 '16 at 07:45

Deepak John

967
1
7
19

score 1 · Answer 2 · answered Mar 09 '16 at 07:42

try some like this in your onBackPress method

@Override
    public void onBackPressed() {
        Intent intent = new Intent(Intent.ACTION_MAIN);
        //to clear all old opened activities 
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        startActivity(intent);
        finish();
    }

score 0 · Answer 3 · answered Mar 09 '16 at 07:39

--Simplest way to close/exit app :

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

score 0 · Answer 4 · answered Mar 09 '16 at 07:41

0

Try this :

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

answered Mar 09 '16 at 07:41

vabhi vab

419
4
11

score 0 · Answer 5 · edited May 23 '17 at 12:09

I believe this thread can help you: Android: Quit application when press back button

Let's say your Main Activity is B and the Fragment activity is A. Then, you must clear the stack of activities and leave only A on the stack. Use this:

Intent launchNextActivity;
launchNextActivity = new Intent(B.class, A.class);
launchNextActivity.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
launchNextActivity.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);                  
launchNextActivity.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(launchNextActivity);

score 0 · Answer 6 · answered Jul 11 '16 at 04:10

0

override onBackPressed method in your main activity

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

answered Jul 11 '16 at 04:10

ashwini

142
8

how to close app when i press back?

6 Answers6