Screen sleep while playing game on Android

Hi,

I am preparing a small game with Accelerometer as a main input of my game. With this, my screen keeps on turning off while playing games. To overcome this I write following code,

void Start (){ Screen.sleepTimeout = SleepTimeout.NeverSleep; }

This seems working perfect but when I build and run this game on my android phone, it also keeps lights ON for menu and back key on phone. Is there any workaround for this? Or am I doing something wrong? Please advice.

Regards.