How to hook into the Power button in Android?

Question

On an Android device, where the only buttons are the volume buttons and a power button, I want to make the app react to presses on the power button (long and short). How is

Answer 1

you have to use this:

BroadcastReceiver screenoff = new BroadcastReceiver() {

public static final String Screenoff = "android.intent.action.SCREEN_OFF";

@Override
public void onReceive(Context context, Intent intent) {
        if (!intent.getAction().equals(Screenoff)) return;
        //put code to handle power press here
        return;

}};