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Allow a BiometricPrompt to succeed after an initial failure (#791) (#847) 

Previously a call to BiometricPrompt.AuthenticationCallback#OnAuthenticationFailed()
was treated as though an unrecoverable failure had occurred. However this is called on
each failed fingerprint match, for example, and is not a terminal failure. Now these
intermittent failures are ignored and a call to #OnAuthenticationError() is recognised
as an unrecoverable failure instead.
This commit is contained in:
Chris 2020-04-24 00:28:43 +10:00 committed by GitHub
parent 9a403ba0ed
commit 2b3915a91f
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1 changed files with 9 additions and 1 deletions
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10
src/Android/Services/DeviceActionService.cs
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@ -446,7 +446,8 @@ namespace Bit.Droid.Services
new BiometricAuthenticationCallback
{
Success = authResult => result.TrySetResult(true),
Failed = () => result.TrySetResult(false),
Error = () => result.TrySetResult(false),
Failed = () => { },
Help = (helpCode, helpString) => { }
});
return result.Task;
@ -866,6 +867,7 @@ namespace Bit.Droid.Services
private class BiometricAuthenticationCallback : BiometricPrompt.AuthenticationCallback
{
public Action<BiometricPrompt.AuthenticationResult> Success { get; set; }
public Action Error { get; set; }
public Action Failed { get; set; }
public Action<BiometricAcquiredStatus, Java.Lang.ICharSequence> Help { get; set; }
@ -875,6 +877,12 @@ namespace Bit.Droid.Services
Success?.Invoke(authResult);
}
public override void OnAuthenticationError([GeneratedEnum] BiometricErrorCode errorCode, Java.Lang.ICharSequence errString)
{
base.OnAuthenticationError(errorCode, errString);
Error?.Invoke();
}
public override void OnAuthenticationFailed()
{
base.OnAuthenticationFailed();