Scanning different codes

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WebAtelier- mt

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Apr 28, 2017, 4:08:01 AM4/28/17
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Is it possible to scan "Aztec" or "Data Matrix" codes with App Inventor?
If yes how?

Nico Marikucza

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Apr 28, 2017, 7:30:32 AM4/28/17
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Sorry, i didn´t understand you. What´s an "Aztec" or a "DataMatrix" code???
If they are Barcodes, can you scan it with the BarcodeScanner Component. Else, i think, there´s no other Possibility for other codes.
Nico

Hossein Amerkashi

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Apr 28, 2017, 7:33:26 AM4/28/17
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Yes because Aztec is of QR format.
Use BarcodeScanner component.

WebAtelier- mt

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Apr 28, 2017, 9:40:52 AM4/28/17
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I can't read the Aztec code with the internal barcode scanner of App Inventor 2 and also not a Data Matrix.
When I try to scan nothing happens...

Nico Marikucza

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Apr 28, 2017, 11:53:53 AM4/28/17
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Wait a second, i test it now...

Nico Marikucza

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Apr 28, 2017, 11:56:54 AM4/28/17
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Oh! You´re right, WebAtelier! Sorry, but i don´t know more options to scan these codes.
Nico

Abraham Getzler

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Apr 28, 2017, 2:23:14 PM4/28/17
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If I'm reading this right, there is an option to use an external scanner program:

BarcodeScanner

Component for using the Barcode Scanner to read a barcode

Properties

Result
Text result of the previous scan.
UseExternalScanner
If true App Inventor will look for and use an external scanning program such as "Bar Code Scanner."

Events

AfterScan(text result)
Indicates that the scanner has read a (text) result and provides the result

Methods

DoScan()
Begins a barcode scan, using the camera. When the scan is complete, the AfterScan event will be raised.

 So now your problem would be to find an external scanner program that reads those codes?

ABG

WebAtelier- mt

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Apr 28, 2017, 4:09:23 PM4/28/17
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No, I don't want to use an external scanner. I know that some can do this.
I wanted the App Inventor internal scanner to scan the codes.

Evan Patton

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Apr 28, 2017, 5:10:19 PM4/28/17
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Internally we use the ZXing library for the barcode scanner. The problem is that we haven't updated it in a while, so while they do list Aztec as in beta, it's likely not in the version we are currently compiling. I'll discuss with the other devs whether or not it makes sense to upgrade.

Evan
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