How to exit from the application while pressing back button from fragment

Question

I am adding fragment in the activity.While user press back button from one fragment screen .I need to exit from the application can anybody tell how to do?

Thanks

Answer 1

You can use following method to exit from from fragment

getActivity().moveTaskToBack(true); 
getActivity().finish();

may this will help you

Answer 2

3 steps:

Capture the back button press, clear the stack of activities so your activity is at the back of it, and the close it.

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

Answer 3

Read More at

private Toast toast;
    private long lastBackPressTime = 0;
    @SuppressLint("WrongConstant")
    @Override
    public void onBackPressed() {
        int fragments = getFragmentManager().getBackStackEntryCount();
        if (fragments == 0) {
            // make layout invisible since last fragment will be removed
            if (this.lastBackPressTime < System.currentTimeMillis() - 3000) {
                toast = Toast.makeText(this, "Press back again to close this app", 3000);
                toast.show();
                this.lastBackPressTime = System.currentTimeMillis();

            }else{
                if (toast != null) {
                    toast.cancel();
                }
                super.onBackPressed();
            }

        }else{
            if (toast != null) {
                toast.cancel();
            }
            super.onBackPressed();
        }
    }

Answer 4

One safe way when you may have multiple fragments added/replaced is to count the backstack and exit via this: (this would be inside main activity)

@Override
public void onBackPressed() {
    if (getSupportFragmentManager().getBackStackEntryCount() > 1) {
        getSupportFragmentManager().popBackStack();
    } else {
        super.onBackPressed();
    }
}

This way if you press BACK on a fragment that is not your main, only that fragment is removed and once you reach the lower-most fragment (first one you added) then it will call the onBackPressed of super class which could be your .. BaseActivity extends AppCompatActivity and then inside this BaseActivity add this:

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

Answer 5

Pressing back button will be detected from your Activity Try this code:

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

Answer 6

Using getActivity.finish() I exit from at the application