Finish empty activity

Question

I'm trying to turn screen on using an activity. I reached my goal, but the activity stays alive. If I use finish method, it doesn't get closed.

Note: it doesn't work even if I setContentView(...my xml...);

package it.android.smartscreenon;

import android.app.Activity;
import android.os.Bundle;
import android.view.WindowManager;

public class AccendiSchermo extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
                finish();
    }
}

just want to use this activity to turn on screen, so I want to close after displaying it. — Hoconosc, May 13 '12 at 17:01
why are you turning the screen on if you don't have something to show the user? — FoamyGuy, May 13 '12 at 17:03
Because my app needs to turn on the display at a certain moment. — Hoconosc, May 13 '12 at 17:04
if I move move finish() to onStart() it doesn't turn on screen anymore — Hoconosc, May 13 '12 at 17:07
What is it you are trying to achieve? Creating an `Activity` just to turn the screen on seems pointless. Also the `Activity` would need the screen on for a user to start it. — techi.services, May 13 '12 at 17:12
If I call a wakelock to turn screen on, the display timeout is killed. I need it. — Hoconosc, May 13 '12 at 17:17

score 0 · Answer 1 · answered May 13 '12 at 17:03

0

Try System.exit(0); in place of finish();

answered May 13 '12 at 17:03

APZ

176
8

it doesn't turn screen on anymore – Hoconosc May 13 '12 at 17:06
Didnt you ask for **but the activity stays alive. If I use finish method, it doesn't get closed.** I answered that on how to close your activity. Maybe you can rephrase your question. – APZ May 13 '12 at 17:29
I did not -1 but yes, I want it to show activity before closing it, not closing it without showing anything – Hoconosc May 13 '12 at 17:30
Will the following help http://stackoverflow.com/questions/9561320/android-how-to-turn-screen-on-and-off-programmatically – APZ May 14 '12 at 16:10

Evgeniy Mishustin · Answer 2 · 2015-07-06T07:56:52.140

0

Try to place your finish(); function in the

 @Override
public void onAttachedToWindow(){
    super.onAttachedToWindow();
    Log.d("MyLog", "InActivity->onAttachedToWindow");
    finish();
}

edited Jul 06 '15 at 07:56

answered Feb 04 '14 at 15:28

Evgeniy Mishustin

3,343
3
42
81

Finish empty activity

2 Answers2