IssueTracker

Even I'm also facing same exception issue. When user failed biometrics multiple times(5) and biometric is locked there is no way to find if biometrics can be shown or not. If user tries to enable again within the 30 sec time limit app is crashing. Please fix it ASAP.

Logs :

java.lang.IllegalStateException: Fragment already added: BiometricFragment{60be538 #2 BiometricFragment}
        at androidx.fragment.app.FragmentManagerImpl.addFragment(FragmentManager.java:1916)
        at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:765)
        at androidx.fragment.app.FragmentManagerImpl.executeOps(FragmentManager.java:2625)
        at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2411)
        at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2366)
        at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2273)
        at androidx.fragment.app.FragmentManagerImpl$1.run(FragmentManager.java:733)
        at android.os.Handler.handleCallback(Handler.java:873)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6680)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

We are unable to reproduce this issue with latest version of androidx.biometric  (androidx.biometric:biometric:1.0.0-alpha03)

Re: comment #2 : Its similar to issue 117105236  (which is fixed).

Please check with latest version of the support libs & let us know the results.



If you are still able to reproduce this issue then provide the following info :

Provide sample project or apk to reproduce the issue. Also mention the steps to be followed for reproducing the issue with the given sample project or apk.

Android bug report
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Alternate method:
After reproducing the issue, navigate to developer settings, ensure ‘USB debugging’ is enabled, then enable ‘Bug report shortcut’. To take bug report, hold the power button and select the ‘Take bug report’ option.

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I think this issue needs to be fixed as a first priority. You can reproduce the error with opening app and calling biometricPrompt.authenticate() after that press home button and then, show your finger to sensor. It'll crash instantly. You can reproduce the issue easily. I can do that with my Oreo device. I think that cancelAuthenticate doesn't work properly.

This issue looks like fixed with library -- androidx.biometric:biometric:1.0.0-alpha03

Q) Once user tries for 5 times, the popUp will not be visible for next 30 seconds. It is taking too much time to give errorCode=7 (ERROR_LOCKOUT) when tries to see the biometric popup again. Is there a way to see the errorCode faster than usual?

Thanks,