How to find the screen is locked in android

Question

For my application, I need to know that the screen is locked. How to check this is problematically. I used following flag:

if(WindowManager.LayoutParams.FLAG         


        

Answer 1

I guess you may have already found the answer, but if not (and for other developers), you can do it like this:

              PowerManager powerManager = (PowerManager) getSystemService(POWER_SERVICE);
              boolean isScreenOn = powerManager.isScreenOn();

if (!isScreenOn) {
           //Screen is in OFF State
           //Code to power on and release lock 



                KeyguardManager km = (KeyguardManager) this
                 .getSystemService(Context.KEYGUARD_SERVICE);
               final KeyguardManager.KeyguardLock kl = km
                 .newKeyguardLock("MyKeyguardLock");
               kl.disableKeyguard();

               PowerManager pm = (PowerManager) this
                 .getSystemService(Context.POWER_SERVICE);
               WakeLock wakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK
                 | PowerManager.ACQUIRE_CAUSES_WAKEUP
                 | PowerManager.ON_AFTER_RELEASE, "MyWakeLock");
               wakeLock.acquire();
}