how to handle sleep mode enter in android?

I didn't find it anywhere, how can I handle entering sleeping mode in android? I want to do something when andro开发者_开发技巧id device entered to the sleep mode? Is this possible or is there anyway to handle it?

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Just make this by using BroadCastReceivers for system-calls (wakeup/sleep)

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how can I handle entering sleeping mode in android?

Generally, you don't. There is nothing you need to do related to sleep mode.

I want to do something when android device entered to the sleep mode?

I certainly hope not.