How to detect key-guard state in android

问题

I have an application that requires to detect the previous state of the key-guard before calling disableKeyguard() or reenableKeyguard(), set by the user! is there any way of accomplishing this task?

回答1:

From documentation

Use

((KeyguardManager)getSystemService(Context.KEYGUARD_SERVICE)).isKeyguardLocked()

来源：https://stackoverflow.com/questions/13986471/how-to-detect-key-guard-state-in-android