Smart OnOff

Operation like Samsung's SmartStay is possible with this app.
You can make phone not going to sleep when you hold it up but go sleep lay it down.
It does not use camera to decide it's status but use g-sensor so consumes less battery and can support phones which do not have SmartStay capability as many phones do.
When you reading or in daily life this could be very convenient because you don't even need to look for power button every time to turn it off.
Just flip it!

By default, it was set to be off on Face Up, if you put down phone on the desk, show notification icon for wait period of 2 seconds, then screen will be off.

Notification icon will be removed as soon as the phone is out of level position such as if you hold it up, so it should stay still for designated seconds to be turned off.

The waiting period is adjustable even to None which will turn it off as fast as possible.

If Face Detect option is on, face will be detected just before going to sleep and prevent it when detected. Front-facing camera is required.

Opinions are always welcome.

* To uninstall this app, first uncheck device administrator settings. You can find it in settings->Location&Security->Select device administrators.

* On Android IceCream Sandwitch phone (v4.x), OS has bug which will make screen on immediately after going to sleep.

- Features
Enable/Disable
Keep awake while holding up or not
Vibrate/Sound sleep notify
Delay time : set delay before go to sleep
Sleep position selection : Face up, Face Down, Both
Face detection before going to sleep

- Permissions
All permissions are used only for showing Ad and lock device.

** Update history
Sensor changed to cover more devices
Face detection before going to sleep