Android lights up the screen or screen to unlock and lock the screen, and other related permission implementation code

1. Android screens are always on/on CopyCode The Code is as follows: // keep the screen always on
Powermanager PM = (powermanager) getsystemservice (context. power_service );
Mwakelock = PM. newwakelock (powermanager. full_wake_lock | powermanager. acquire_causes_wakeup, lock_tag );
Mwakelock. Acquire ();

Copy codeThe Code is as follows: // release the screen lock
If (null! = Mwakelock ){
Mwakelock. Release ();
}

2. Unlock and lock the android Screen Copy codeThe Code is as follows: // unlock the screen
Keyguardmanager = (keyguardmanager) getsystemservice (keyguard_service );
Keyguardlock = keyguardmanager. newkeyguardlock (lock_tag );
Keyguardlock. disablekeyguard ();
// Screen lock
Keyguardlock. reenablekeyguard ();

3. Related Permissions Copy codeThe Code is as follows: <uses-Permission Android: Name = "android. Permission. disable_keyguard"/>
<Uses-Permission Android: Name = "android. Permission. wake_lock"/>