Android Question Scan the code for help

[bskotu555]

Is there a case where clicking a button, invoking the camera, reading a one-dimensional code or a QR code, and then filling the reading result into a text box?

 

[jameshouser]

Hello,
Yes, absolutely — that’s a common use case in B4A. You can open the camera, scan a 1D barcode or QR code, and then place the result into a TextField (EditText).

The easiest way is to use the BarcodeScanner library (based on Google ML Kit or ZXing). For example:

Sub ButtonScan_Click

    Dim scanner As BarcodeScanner

    scanner.Initialize("scanner")

    scanner.Show  'Opens the camera and scans

End Sub



Sub scanner_BarcodeFound (Barcode As String)

    EditText1.Text = Barcode

End Sub

 

[teddybear]

You can try this example .
Or if your phone can install Google services, this is also an option

 

[bskotu555]

You can try this example .
Or if your phone can install Google services, this is also an option

I have replaced the camera scanning scheme with a PDA device. I think this part of the code doesn't need to be written anymore. I was lazy, haha

 

[bskotu555]

You can try this example .
Or if your phone can install Google services, this is also an option

But I have another problem that I can't avoid, which is taking photos and OCR recognizing text into text boxes. I have looked at examples on forums and installed SDK components, but after running, there were no errors or text recognition, which made me quite frustrated：https://www.b4x.com/android/forum/threads/b4x-textrecognition-based-on-mlkit.161210/