Android – detect phone unlock event, not screen on

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Here’s what to do:

Say you want to detect the unlock event and do something in your activity when the phone is unlocked. Have a Broadcast Receiver for ACTION_SCREEN_ON, ACTION_SCREEN_OFF and ACTION_USER_PRESENT.

onResume of the activity will be called when ACTION_SCREEN_ON is fired. Create a handler and wait for ACTION_USER_PRESENT. When it is fired, implement what you want for your activity.

Credit goes to CommonsWare’s answer here: Android — What happens when device is unlocked?

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