Android Question FingerPrint Auth_Complete Question

[incendio]

Hello,

I tried fingerprint library from https://www.b4x.com/android/forum/threads/fingerprint-authentication.72500/ with real device on Oreo 8.0.

Changed a code for sub Auth_Complete to be like this

Sub Auth_Complete (Success As Boolean, ErrorMessage As String)
   If Success Then
       ToastMessageShow("You have been authenticated!!!", True)
   Else
       fingerprint.Cancel
       ToastMessageShow($"Error: ${ErrorMessage}"$, True)
       Log(ErrorMessage)
   End If
End Sub

If scan succeded, the app worked OK, message "You have been authenticated!!!" appeared, but if scan failed, fingerprint cancel and the error message never called.

Any idea why it didn't work as expected?

 

[derez]

try to cancel the object after the messages...

 

[incendio]

try to cancel the object after the messages...

No Avail.

 

[Erel]

Do you see a "fail" message in the logs?

 

[incendio]

Do you see a "fail" message in the logs?

Sorry, tested on real device, don't know how to see a log in real device.

 

[incendio]

I changed Sub Auth_Complete in FingerPrintManager.bas to like this

Private Sub Auth_Complete (Success As Boolean, ErrorCode As Int, ErrorMessage As String)
    ToastMessageShow("Fingerprint Completed.", True)
    If ErrorCode = 5 Then Return 'cancel
    CallSub3(mTarget, mEventName & "_complete", Success, ErrorMessage)
End Sub

If FingerPrint scan successded, message "Fingerprint Completed." showed, but if FingerPrint scan failed, this message didn't show.

I guest a failed scan is not considered as a complete event so this event is never triggered.

 

[Erel]

Sorry, tested on real device, don't know how to see a log in real device.

You must be able to read the logs. Connect with B4A-Bridge and run your app in debug mode. Or in release mode with #BridgeLogger: True.

 

[incendio]

You must be able to read the logs. Connect with B4A-Bridge and run your app in debug mode. Or in release mode with #BridgeLogger: True.

See my post #6, I don't think there is any log caused Sub Auth_Complete in FingerPrintManager.bas never triggered on a failed scan.