How to kill Toast after exit app?

Question

Need some help. I used double click on back button for exit app with Toast with next code:

@Override
public void onBackPressed() {
    if (back_pressed + 2000 > System.currentTimeMillis()) {
        super.onBackPressed();
    } else {
        Toast.makeText(getBaseContext(), "Нажмите еще раз для выхода", Toast.LENGTH_SHORT).show();
    }

    back_pressed = System.currentTimeMillis();
}

Found that fragment code here at stackoverflow. I guess this is the best solution for issue. But there is one ecxeption - toast is still on screen after exiting app. How to kill the toast when user click back button twice and application closed?

Answer 1

We can't kill toast when application closes. We can use toast like below code. Toast.LENGTH_SHORT).show(); less duration of toast when your app closes.

Toast.makeText(this, "Press again to exit.. ", Toast.LENGTH_SHORT).show();

Or, you can set Duration of Toast by code below:

Toast toast = Toast.makeText(getApplicationContext(), "Press again to exit..", Toast.LENGTH_SHORT);

toast.show();

Handler handler = new Handler();
handler.postDelayed(new Runnable() {
 @Override
 public void run() {
 toast.cancel(); 
 }
}, 500);

Or, you can use this :

  private Toast toast = null;
  toast = Toast.makeText(getApplicationContext(), "", Toast.LENGTH_SHORT);

   @Override
    public void onBackPressed() {
        if (doubleBackToExitPressedOnce) {
            super.onBackPressed();
            return;
        }
        this.doubleBackToExitPressedOnce = true;
        //Toast.makeText(this, "Press again to exit..", Toast.LENGTH_SHORT).show();
        toast.setText("Press again to exit..");
        toast.show();
        new Handler().postDelayed(new Runnable() {

            @Override
            public void run() {
                doubleBackToExitPressedOnce=false;
            }
        }, 2000);
    }


    @Override
    protected void onStop () {
        super.onStop();
        toast.cancel();

    }