UI Hanged in Second Authentication with AllowAlternativeAuthentication on

[ericc0504]

With AllowAlternativeAuthentication set to true, UI hanged in the second authentication.

Steps to reproduce

1. Authenticate once (either set AllowAlternativeAuthentication to true or false, authenticate success or fail)

2. Authenticate again with AllowAlternativeAuthentication set to true

Expected behavior

Open up the authentication dialog

Actual behavior

UI Hanged

Crashlog

N/A

Configuration

Version of the Plugin: 2.0.0

Platform: e.g. Android 9.0

Device: Nokia 6.1 Plus

BioAuthDemo.zip

[smsissuechecker]

Hi @ericc0504,

I'm the friendly issue checker. Thanks for using the issue template :star2: I appreciate it very much. I'm sure, the maintainers of this repository will answer, soon.

[smstuebe]

Damn. I had this issue with the first biometric bindings, too. But I could not reproduce it later so I thought this was fixed. Unfortunately I think this is an issue of the underlying androidx library. I'll try to investigate this asap.

[ericc0504]

Thank you. Look forward to the next release.

[christianaldas]

@smstuebe Hi, bro.. Do you have resolved this Issue?

[smstuebe]

@christianaldas nope. asap != now. And as I said, I'm not sure if I can fix it, because I experienced this bug also with my own androidx bindings in the first pre releases. That's why I assume, that this bug is in the native library. I found a workaround, but can't really remember what it was (something like invalidate/reload activity). And it had the side effect, that the activity reloaded.

[christianaldas]

So, this never will be fixed?

[cwall-dev]

It seems that it is a problem with the Package Xamarin.AndroidX.Biometric Version 1.0.0. If I reference the Version 1.0.1 in my app the problem is not reproducable anymore.