KeyguardManager - requestDismissKeyguard() method alternative for api 25 and below [Android]

Question

I was recently trying to request user to dismiss key-guard manually from my app. My app invokes a activity screen when device is locked and the screen has the flags

FLAG_SHOW_WHEN_LOCKED
FLAG_TURN_SCREEN_ON

When I have to invoke another screen which does not have these flags I want to request the user to unlock the key-guard, this behaviour can be seen in the the camera app - when we want to share a photo taken while phone is locked it will request us to unlock the device.

requestDismissKeyguard() method works only for api26 and above any alternatives for the lower apis ??

Please add comments if you guys are downvoting – Shangeeth Sivan May 24 '18 at 11:45 — Shangeeth Sivan, May 24 '18 at 11:45
Yeah, not sure why the downvotes here, have a +1, friend. – 2Dee May 24 '18 at 11:54 — 2Dee, May 24 '18 at 11:54

score 2 · Answer 1 · edited Jun 28 '20 at 11:54

2

you can use flags for lower versions

getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON|
                WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD|
                WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED|
                WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);

edited Jun 28 '20 at 11:54

David Buck

3,752
35
31
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answered Jun 28 '20 at 11:27

BÜNYAMİN YETİM

71
4

score 0 · Answer 2 · answered Jul 20 '22 at 08:53

if (Build.VERSION.SDK_INT > Build.VERSION_CODES.N_MR1) {
  val keyguardManager = getSystemService(Context.KEYGUARD_SERVICE) as KeyguardManager
  keyguardManager.requestDismissKeyguard(this, null)
} else {
  window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD)
}

Check for more examples here.

score -3 · Answer 3 · answered Nov 07 '18 at 17:16

you can use createConfirmDeviceCredentialIntent in API level 21

https://developer.android.com/reference/android/app/KeyguardManager.html#createConfirmDeviceCredentialIntent(java.lang.CharSequence,%20java.lang.CharSequence)

sample:

//region [in some funtion]
if (keyguardManager.isKeyguardLocked()) {
   Intent intent = keyguardManager.createConfirmDeviceCredentialIntent("My Title", "A Custom Description");
   if (intent != null) {
       startActivityForResult(intent, REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS);
   }else{
        Toast.makeText(MainActivity.this, "Secure lock screen hasn't set up", Toast.LENGTH_SHORT).show();
   }
}
//endregion

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS) {
       if (resultCode == RESULT_OK) {
           Toast.makeText(MainActivity.this, "Success", Toast.LENGTH_SHORT).show();
       } else {
           Toast.makeText(MainActivity.this, "Cancel", Toast.LENGTH_SHORT).show();
       }
    }
}

createConfirmDeviceCredentialIntent is just used to check if user is known with credentials or not, If password is correct it never UN-LOCKS THE PHONE — Rushikant Pawar, Feb 28 '20 at 17:08

KeyguardManager - requestDismissKeyguard() method alternative for api 25 and below [Android]

3 Answers3