B4A Library MaterialBarcodeScanner (Uses Google Mobile Vision API)

This is a wrap for this github project.

Easy to use barcode reader for your Android Project (Uses Google Mobile Vision API)

• Integrate in a few minutes
• Quick and simple api
• No external apps required
• Uses Google Mobile Vision API (fast scanning, local)
• Automatically parses QR Codes, Data Matrix, PDF-417, and Aztec values
• Supports 1D barcodes: EAN-13, EAN-8, UPC-A, UPC-E, Code-39, Code-93, Code-128, ITF, Codabar
• Supports 2D barcodes: QR Code, Data Matrix, PDF-417, Aztec

MaterialBarcodeScanner
Author: DonManfred (wrapper)
Version: 1

• BarcodeScanner
  Methods:
  • Initialize (EventName As String)
  • IsInitialized As Boolean
  • startScan
    Start a scan for a barcode
    
    This opens a new activity with the parameters provided by the MaterialBarcodeScannerBuilder
• BarcodeScannerBuilder
  Events:
  • onResult (barcode As String)
  Methods:
  • BleepEnabled (enabled As Boolean) As MaterialBarcodeScannerBuilderWrapper
    Enables or disables a bleep sound whenever a barcode is scanned
  • CameraFacing (cameraFacing As Int) As MaterialBarcodeScannerBuilderWrapper
    Either CameraSource.CAMERA_FACING_FRONT or CameraSource.CAMERA_FACING_BACK
    cameraFacing:
  • EnableAutoFocus (enabled As Boolean) As MaterialBarcodeScannerBuilderWrapper
    Enables or disables auto focusing on the camera
  • FlashLightEnabledByDefault As MaterialBarcodeScannerBuilderWrapper
    Shows a text message at the top of the barcode scanner
  • Initialize (EventName As String) As MaterialBarcodeScannerBuilderWrapper
  • IsInitialized As Boolean
  • Text (text As String) As MaterialBarcodeScannerBuilderWrapper
    Shows a text message at the top of the barcode scanner
  • TrackerColor (color As Int) As MaterialBarcodeScannerBuilderWrapper
    Sets the tracker color used by the barcode scanner, By default this is Material Red 500 (#F44336).
    color:
  • build As MaterialBarcodeScanner
    Build a ready to use MaterialBarcodeScanner
    Return type: @return:A ready to use MaterialBarcodeScanner
  • withBackfacingCamera As MaterialBarcodeScannerBuilderWrapper
    Makes the barcode scanner use the camera facing back
  • withFrontfacingCamera As MaterialBarcodeScannerBuilderWrapper
    Makes the barcode scanner use camera facing front

ATTENTION:
- You need to have google-play-services.jar in your additional libs folder
- You need to have android-support-v4.jar in your additional libs folder
- You need to have android-support-v7-appcompat..jar in your additional ibs folder. Especially the app must be prepared to use AppCompat. So follow the apcmpat tutorial.

I´ve used Example1 of the AppCompat-Tutorials and used the Button in the layout to trigger a Barcodescan

See it in action

 

[DonManfred]

The error "AppCompat1 program stopped"

Without posting the complete stacktrace you just can "not post anything".
It will not help without the stacktrace, errorlog.

I cannot help either with this less information.
I could find more interesting things to do in my holiday than to help here

 

[FrankDev]

I can start the barcodescanner
'Start scan'
But
How can I terminate it programmatically?


ich kann den Barcodescanner zwar starten
'startScan'
Aber
wie kann ich ihn Programmgesteuert beenden ?

Gruß Frank

 

[DonManfred]

You can´t. There is no method to stop the activity programatically. I guess you need to use the back key to leave the scan....

 

[jimmyF]

I have set it up as instructed but cannot compile due to this error:
"Array expected" on Line 99

97 Sub Button1_Click
98    Log("Button1 Click event fired")
99    scanner = builder.Initialize("Barcode").BleepEnabled(True).EnableAutoFocus(True).withBackfacingCamera.Text("DonManfred presents").TrackerColor(Colors.Red).build
100    scanner.startScan
101 End Sub

Using B4A 7.01

 

[FrankDev]

a pity

I thought with the result of
'Builder.Activity'
I have some way to close the window.



schade

ich dachte mit dem Ergebnis von
'builder.Activity'
habe ich irgend eine Möglichkeit das Fenster zu beenden.

 

[DonManfred]

You dont need to write german for me. I can read the english part with no problem ;-)
If you are not able to describe it clearly then you can use german as a sencond language for sure

Wenn Du es nicht deutlich ausdrücken kannst in english, dann kannst Du es natürlich gerne in Deutsch schreiben (zusätzlich; wir sind ja hier im englischen Bereich des Forums)

 

[FrankDev]

I do not see the problem on your side

Unfortunately I'm not so confident the google translate translated everything as desired.


Ich sehe das Problem auch nicht auf deiner Seite

leider bin nicht so überzeugt das google translate alles wie gewünscht übersetzt.

'zusätzlich' - genau so habe ich es gemacht.

 

[DonManfred]

leider bin nicht so überzeugt das google translate alles wie gewünscht übersetzt.

"Sie sind der Meinung das war (hüpf)SPITZEEEE" trifft es nicht ganz, yo (keine Ahnung wie alt/jung Du bist)

Well done is the wrong term for googles translate

 

[FrankDev]

"Sie sind der Meinung das war (hüpf)SPITZEEEE"

yes, I know him

 

[DonManfred]

OffTopic

 

[DonManfred]

I can´t help on this. I lost the source of this library.
If it does not work for you then you need to find another library.