CODEWITHSUNDEEP
androidexit
prakash .k
prakash .k

Reputation: 635

Exiting the application

In my application i want to exit the application when clicking the back button.When first time entered into the app when clicking back from this screen means it is exiting.But if i got to next screen and coming back to this screen and clicking back means going to previous screen not exiting.Thanks in advance..

My code:

public boolean onKeyDown(int keyCode, KeyEvent event) 
         {      

            if (keyCode == KeyEvent.KEYCODE_BACK)
            {           
                finish();
                java.lang.System.exit(0);

            }
            return super.onKeyDown(keyCode, event);
         }

Upvotes: 0

Views: 384

Answers (5)

elifekiz
elifekiz

Reputation: 1506

You should use :

if (keyCode == KeyEvent.KEYCODE_BACK)
{           
      finishAffinity();
}

Upvotes: 0

surfealokesea
surfealokesea

Reputation: 5116

call moveTaskToBack(true) on your Activity (it doesn't kill your app but remove it from screen)

Upvotes: 0

code-jaff
code-jaff

Reputation: 9330

one better way to do that is by starting second activity using

startActivityForResult();

then, when the user click back button check the result by overriding

onActivityResult(){}

and finish the first activity too.

Upvotes: 0

Gautham
Gautham

Reputation: 3538

If you want the back button to always exit the app if pressed from the launcher activity, you can use the following to make it a singletask so that app will exit with back press.

In android manifest file: android:launchMode="singleTask" While directing to this activity using startActivity(), intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

Upvotes: 0

ekholm
ekholm

Reputation: 2573

I would advice against implementing such functionality. The back button works the same way in most applications and users feel safe knowing that the back button eventually always puts them back to home screen. Maybe a TabView could be a better way of switching between the two activities?

Upvotes: 1

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