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Questions tagged [keyguard]

This mobile phone feature allows the user to disable (lock) the keys so that a number will not accidentally be dialed while the phone is in your pocket or purse. A special key combination, unlikely to be pressed accidentally, is typically used to unlock the keys.

147 questions
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Activity on lockscreen - dismissing it resumes previous activity

Say my app is running normally, showing Activity A. Then the user locks the phone. A dutifully goes to sleep (onPause()). At some point while the screen is off, I need to show something to the user. So from my background code (service), I call…
Stephan Steiner
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Is there a direct event for keyguard lock?

DUPLICATE WARNING: this post IS NOT about screen on/off, this post IS about keyguard lock (those issues are not the same). Luckily there is a direct event when the keyguard is unlocked, but what about event when the keyguard is locked? I searched…
greenoldman
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Application gets crashed while using KeyGuardManager below Android L

KeyGuardManager works fine above android L, but it throws exception in Android L and below. I am using below function: @RequiresApi(api = Build.VERSION_CODES.M) private void createKey() { try { KeyStore keyStore =…
Unnati
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Avoiding statusbar to expand without hiding it

I'd like to add in my app a keyguard like the one used in Go locker / MX player. Both the apps allow you to see the statusbar but you cannot pull it down. I already found some tricks to draw over the statusbar but this is not what I'm looking…
Vlatego
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Activity with specific height in front of lockscreen

I want to display an Activity in front of the Lockscreen. I tried with this code in my onCreate medthod: super.onCreate(savedInstanceState); Window window = getWindow(); window.addFlags(LayoutParams.FLAG_SHOW_WHEN_LOCKED); …
Cilenco
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How to re enable keyguard after disabling?

I'm making a lock screen app that uses a foreground service which disables the keyguard when it is started and reenables it when it is destroyed. I can disable it fine, but it doesn't reenable when the service is stopped. I'm stopping the service…
CoffeeCrisp
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android - how do i dismiss the lock screen on new android version?

i need to dismiss the default lock screen on some cases . it is possible using KeyguardManager.KeyguardLock , but it's deprecated and might not be available on the new android v4 version (ICS) . instead , here android docs i read that i should use…
android developer
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Full screen notifications unwantedly triggering keyguard

I'm making an app that shows full-screen notifications when the device is locked. Expected behavior: when a notification is launched, the activity shows over the lock screen without prompting the user to unlock the device. It should be the same as…
amedev
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Show authentication prompt with only device credential option on Android 10 and lower

I can display biometric prompt with device credentials using 'androidx.biometric:biometric:1.2.0-alpha03' as, val promptInfo = BiometricPrompt.PromptInfo.Builder() .setTitle("Login to My App") .setSubtitle("Log in using your…
sneharc
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Calling requestDismissKeyguard() twice with a delayed result

I'm working on an app that has call capabilities so I need the device to wake up. If the device is locked, I use the following code to unlock it: keyguardManager.requestDismissKeyguard(this, new KeyguardManager.KeyguardDismissCallback() { …
The Hungry Androider
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Unlock android device not working while call ACTION_CALL intent

I am receiving a push notification, On that, calling a foreground service. From the service, I am calling one Activity. Here, I have 2 functionality. 1. Sound alarm for emergency 2. Call using ACTION_CALL. Both are working fine if device…
RaRa
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Callback on change Screen lock

I need some advice about Screen lock on Android. Does android sent some intent when user change Screen lock? Or I need poll KeyguardManager.isDeviceSecured in Service? Google pay send a notification when user remove Screen lock, i need exactly the…
aTable
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KeyGuard for kitkat

How to make the app get user to auth himself with the phone's PIN or whatever using KeyGuard if the phone is under SDK 21? I want something like KeyguardManager#createConfirmDeviceCredentialIntent, but for under SDK 21.
theAnonymous
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Show a transparent activity above the lock screen such that the lock screen still is visible

I have an activity which pops up everywhere (when a specific GCM message is received). Since the activity has a transparent area you still can see everything through it, depending on where you are on your Android device. It is also shown above the…
softwaresupply
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Lollipop keyguard not dismissed?

I'm developing a app that in certain times it should wake up the device and dismiss the keyguard to display some activity until the user dismisses it. So, the getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD | …
Leebeedev
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