Android 4.3 : How can I check if user has lock enabled?

Question

I want my app to behave differently (not store stuff) if the user does not have a lock screen or only swipe enabled. The top answer here: check whether lock was enabled or not has been edited to say the code no longer works after upgrade to Android 4.3.

Is there anyway to detect this on Android 4.3?

score 8 · Accepted Answer · answered Feb 14 '14 at 07:13

8

Ok, so it seems it is possible with some reflection. Not the best solution, but at least it works on the devices we tried:

        Class<?> clazz = Class.forName("com.android.internal.widget.LockPatternUtils");
        Constructor<?> constructor = clazz.getConstructor(Context.class);
        constructor.setAccessible(true);
        Object utils = constructor.newInstance(context);
        Method method = clazz.getMethod("isSecure");
        return (Boolean)method.invoke(utils);

answered Feb 14 '14 at 07:13

Erlend

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Please note that this won't work with Android 6.x or 7. – FunkSoulBrother Sep 05 '16 at 13:51
Yeah, using reflection like that is a hack that I expected to break at some point. Do you know how to do it on those versions? – Erlend Sep 06 '16 at 07:42
1

Sure , take a look at https://developer.android.com/reference/android/app/KeyguardManager.html. For Android 5.0 and up it does the job. – FunkSoulBrother Sep 06 '16 at 07:44
Thanks, @FunkSoulBrother! – Erlend Sep 06 '16 at 08:41

score 5 · Answer 2 · answered Sep 02 '15 at 09:14

You can check it with KeyguardManager:

KeyguardManager keyguardMgr = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
if(keyguardMgr.isKeyguardSecure()){
    // Secure keyguard, the keyguard requires a password to unlock
} else {
    // Insecure keyguard, the keyguard doesn't require a password to unlock
}

score 0 · Answer 3 · edited Jul 18 '22 at 10:03

0

You can check with KeyguardManager's method isKeyguardSecure() to make sure if lock or passcode is enabled or not.

KeyguardManager keyguardManager = (KeyguardManager) getSystemService(KEYGUARD_SERVICE);
        Toast.makeText(this,"KeyGuardEnabled ? "+ keyguardManager.isKeyguardSecure(),Toast.LENGTH_LONG).show();

edited Jul 18 '22 at 10:03

Gowthaman M

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answered Jan 16 '17 at 09:44

Divya

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Android 4.3 : How can I check if user has lock enabled?

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