B4A Library MaterialBarcodeScanner (Uses Google Mobile Vision API)

DonManfred · Apr 17, 2016

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 · Dec 28, 2016

I just saw i did not released 1.5 as yet....

I´ve uploaded V1.5 to post #1

Try again with this version please.

roberto64 · Dec 28, 2016

The error "AppCompat1 program stopped"
Greetings

DonManfred · Dec 28, 2016

roberto64 said:
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 · Jun 28, 2017

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 · Jun 28, 2017

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 · Jun 28, 2017

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

B4X:

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 · Jun 28, 2017

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 · Jun 28, 2017

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 · Jun 28, 2017

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 · Jun 28, 2017

FrankDev said:
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 · Jun 28, 2017

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

yes, I know him

DonManfred · Jun 28, 2017

OffTopic

DonManfred · Feb 12, 2018

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.

B4A Library MaterialBarcodeScanner (Uses Google Mobile Vision API)

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