How to do something when screen is turning off?

Question

How can I invoke arbitrary code in Android when the screen of the device is turned off? Is there a callback of some sort?

Turning the screen off doesn't invoke a callback as far as I know but you will always receive `onPause()` and `onStop()` in your activity if you're currently up front... Isn't that enough for your purposes? — avalancha, Nov 19 '14 at 12:28
Oh yes, I forgot about onPause() and onStop() Thank you very much ! — user5819, Nov 19 '14 at 12:29
Will processes that run in the background invoke some callback like the activity? — user5819, Nov 19 '14 at 12:30
Thank you, @mrgenco If you put it as an answer I will mark it for accepted — user5819, Nov 19 '14 at 12:36

score 0 · Accepted Answer · edited May 23 '17 at 10:24

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The system will broadcast a message when the screen turns on and off. Here is the detailed answer https://stackoverflow.com/a/4208538/1581921

edited May 23 '17 at 10:24

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answered Nov 19 '14 at 12:36

mrgenco

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score 0 · Answer 2 · answered Nov 19 '14 at 12:46

Build a BroadcastReceiver on the on/off screen. The Android system broadcasts a message when certain things happen ( like the screen going on/off , battery changes etc. ) With the BroadCastReceiver you will tell your app how to react when the screen will go off.

How to do something when screen is turning off?

2 Answers2