Android Question Suddenly google code scanner (based on ML kit) not working

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personalapps

Member
The ML kit based Google Scanner was working but no longer works. I haven't changed any thing in code. When the 'button' is tapped, brief black screen appears and app goes back to main page. No discernible error is shown. How to rectify it? This is the log: Is it got something to do with 'Transport backend 'cct' is not registered' ? Also what are all those strange com.hunantv.imgo.activity, com.tencent.qqlive, com.qiyi.video, com.hunantv.imgo.activity.inter, com.tencent.qqlivei18n, com.iqiyi.i18n, tv.danmaku.bili] ?
 
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personalapps

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Fresh download and running of code too doesn't work. The complete log is below:

 
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Erel

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personalapps said:
com.hunantv.imgo.activity, com.tencent.qqlive, com.qiyi.video, com.hunantv.imgo.activity.inter, com.tencent.qqlivei18n, com.iqiyi.i18n, tv.danmaku.bili
Click to expand...
You are seeing the system logs. It includes the output of all apps.

Change the scan method code to:
B4X: 
Public Sub Scan (Formats As List) As ResumableSub
    Dim builder As JavaObject
    builder.InitializeNewInstance("com/google/mlkit/vision/codescanner/GmsBarcodeScannerOptions.Builder".Replace("/", "."), Null)
    Dim f(Formats.Size - 1) As Int
    For i = 1 To Formats.Size - 1
        f(i - 1) = Formats.Get(i)
    Next
    builder.RunMethod("setBarcodeFormats", Array(Formats.Get(0), f))
'    builder.RunMethod("enableAutoZoom", Null)
    Dim options As JavaObject = builder.RunMethod("build", Null)
    Dim scanning As JavaObject
    Dim ctxt As JavaObject
    ctxt.InitializeContext
    Dim scanner As JavaObject = scanning.InitializeStatic("com/google/mlkit/vision/codescanner/GmsBarcodeScanning".Replace("/", ".")).RunMethod("getClient", Array(ctxt, options))
    Dim o As JavaObject = scanner.RunMethod("startScan", Null)
    Do While o.RunMethod("isComplete", Null).As(Boolean) = False
        Sleep(50)
    Loop
    Dim res As ScannerResult
    res.Initialize
    If o.RunMethod("isSuccessful", Null) Then
        res.Success = True
        res.Barcode = o.RunMethod("getResult", Null)
        res.Value = res.Barcode.RunMethod("getRawValue", Null)
    Else
        Log("error: " & o.RunMethod("getException", Null))
    End If
    Return res
End Sub

Post the filtered logs.
 
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personalapps

Member
Thanks for looking into the issue. The filtered Log after changing code:

 
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personalapps

Member
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personalapps

Member
Erel said:
If you have another device to test then try it.

Deleting Google Play Services cache might help. Also try to restart the device.
Click to expand...
Interestingly, it works in older phone! First time it shows error as it apparently downloads 'Barcode UI module' and then it starts working.
Log:
 
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