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Android 9 on Nokia 7 Plus
Build number 00WW_3_54H_SP03

Android Studio 3.5.1 on macOS 10.13.6
compileSdkVersion 29
buildToolsVersion '29.0.2'
minSdkVersion 17
targetSdkVersion 28
implementation 'androidx.biometric:biometric:1.0.0-rc01'

Code taken from "Allow for fallback to non-biometric credentials" in
https://developer.android.com/training/sign-in/biometric-auth

Problem:
1. Show biometric prompt.
2. Tap "USE PASSWORD" instead of scanning fingerprint.
3. Unlock using pattern.
4. Activity stops responding.
See attached MP4 video.

This happens consistently.

Project attached in MyApplication.zip

Same issue with androidx.biometric:biometric:1.0.0-rc02

Android 9 on Nokia 7 Plus
Build number 00WW_3_54H_SP03

Android Studio 3.5.1 on macOS 10.13.6
compileSdkVersion 29
buildToolsVersion '29.0.2'
minSdkVersion 17
targetSdkVersion 28
implementation 'androidx.biometric:biometric:1.0.0-rc02'

Code taken from "Allow for fallback to non-biometric credentials" in
https://developer.android.com/training/sign-in/biometric-auth

Problem:
1. Show biometric prompt.
2. Tap "USE PASSWORD" instead of scanning fingerprint.
3. Unlock using pattern.
4. Activity stops responding.
See attached MP4 video.

This happens consistently.

I am facing the exact same issue.

Android 9 on Moto Z2 Play (XT1710-07)
Build number PPS29.133-30

Android Studio 3.5.1 on Windows 10 Pro
compileSdkVersion 28
buildToolsVersion '28.0.3'
minSdkVersion 23
targetSdkVersion 28
implementation 'androidx.biometric:biometric:1.0.0-rc02'

Issue is reproducible. More details are here - https://drive.google.com/open?id=1DoJlZ4WtmgbEPhH2HxNRsxLaG2MHL2b3  (internal only link)

I don't know what this is abou?

On Tue, Nov 5, 2019, 3:19 AM <buganizer-system@google.com> wrote:

This error case appears to be triggered by creating BiometricPrompt immediately before calling authenticate(), rather than recreating the prompt in the Activity's onCreate() (or Fragment's onCreateView()) lifecycle method as intended. That's obviously an easy mistake to make, so I'll work on making sure the documentation is clearer here.

The fact that the activity appears to hang afterward is definitely a bug and will be fixed by aosp/1151594, likely in a 1.0.1 bugfix release. For now, I'm closing this bug as a duplicate of b/143683687.