Question

i would like to show alertbox while user press back on phone.
so simply i use ::

public boolean onKeyDown(int keyCode, KeyEvent event) {
        if ((keyCode == KeyEvent.KEYCODE_BACK)) {
            try {
                  AlertDialog.Builder alertbox = new AlertDialog.Builder(this);
                    alertbox.setMessage("This is the alertbox!");
                    alertbox.setPositiveButton("Yes", new DialogInterface.OnClickListener() {


                        public void onClick(DialogInterface arg0, int arg1) {
                            Toast.makeText(getApplicationContext(), "'Yes' button clicked", Toast.LENGTH_SHORT).show();
                        }
                    });

                    // set a negative/no button and create a listener
                    alertbox.setNegativeButton("No", new DialogInterface.OnClickListener() {


                        public void onClick(DialogInterface arg0, int arg1) {
                            Toast.makeText(getApplicationContext(), "'No' button clicked", Toast.LENGTH_SHORT).show();
                        }
                    });

                    alertbox.show();
          stopService(new Intent(this, BackServices.class));
                finish();
            } catch (Exception e) {
                // TODO: handle exception
            }
        }
        return super.onKeyDown(keyCode, event);
    }

but problem is : when i press back alertbox show but it exit from application. i want stop exit from application until user press yes button.if user press no then get back to application

Answer 1

Well there are two things to make it possible

1.)

stopService(new Intent(this, BackServices.class));
                finish();

Remove finish(); from here, as it is the reason your activity gets close

2.) Instead of

return super.onKeyDown(keyCode, event);

you can return false like this,

  return false;