java - Why does my Android app stops, when I move it to the background? -


i'm developing android application , have following code lines: 

@override public boolean onkeydown(int keycode, keyevent event) {     if (keycode == keyevent.keycode_back || keycode == keyevent.keycode_home) {         movetasktoback(true);         return true;     }      [... more code ...]  }

when test on emulator, works , closes app , opens @ point before. when load apk on real device, stops application , starts new, when open again. loading screen.

where problem?

have tried saving state of activity ? solution here


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