Check if screen is unlocked

Question

How can I check if the screen is unlocked (E.i. Turned on and not on lockscreen)?

PS. I'm not looking for the unlock event, which I know can be retrieved with an AdminDeviceReceiver, but I'm looking for an executable code that will return a boolean telling me whether or not the screen is unlocked.

not sure but you may try to catch the touch screen event for device, it you can that means device is unlocked so been used — Saqib, Jan 14 '14 at 12:46
possible duplicate of [How to find the screen is locked in android](http://stackoverflow.com/questions/9002032/how-to-find-the-screen-is-locked-in-android) — JanBo, Jan 14 '14 at 12:49

score 18 · Accepted Answer · edited May 23 '17 at 11:59

18

Try with this:

   KeyguardManager myKM = (KeyguardManager) сontext.getSystemService(Context.KEYGUARD_SERVICE);
   if( myKM.inKeyguardRestrictedInputMode() ) {
        // it is locked
   } else {
        //it is not locked
   }

Taken from: Detecting when screen is locked

Also same answer : How to tell if user is on lock screen from service

edited May 23 '17 at 11:59

Community

1
1

answered Jan 14 '14 at 12:48

JanBo

2,925
3
23
32

score 4 · Answer 2 · answered Jan 14 '14 at 12:48

KeyguardManager keyguardManager = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
            if( keyguardManager.inKeyguardRestrictedInputMode()) {
                System.out.println("~~~SCREEN LOCKED~~~");
            } else {
                System.out.println("~~~SCREEN NOT LOCKED~~~");
            }

score 3 · Answer 3 · answered Jun 05 '18 at 15:30

3

!mKeyguardManager.isDeviceLocked()

answered Jun 05 '18 at 15:30

Jacob Abraham

915
9
8

This method added in API Level 22. – YUSMLE Dec 09 '18 at 12:40

score 2 · Answer 4 · answered Aug 07 '14 at 04:06

Check the Screen Off State in your onPause Method using Power Manager

@Override
protected void onPause()
{
    super.onPause();

    // If the screen is off then the device has been locked
    PowerManager powerManager = (PowerManager) getSystemService(POWER_SERVICE);
    boolean isScreenOn = powerManager.isScreenOn();

    if (!isScreenOn) {

        // The screen has been locked 
        // do stuff...
    }
}

score 1 · Answer 5 · answered Jan 11 '19 at 12:10

As per google Doc inKeyguardRestrictedInputMode is Deprecated. Instead of You can use below method for phone is wake up or not.

private boolean isPhoneIsLockedOrNot(Context context) {
        boolean isPhoneLock = false;
        if (context != null) {
            KeyguardManager myKM = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
            if (myKM != null && myKM.isKeyguardLocked()) {
                isPhoneLock = true;
            }
        }
        return isPhoneLock;
    }

Check if screen is unlocked

5 Answers5