As a result, scanning them using a camera requires better lighting and a steadier hand than other less dense barcodes. Turns out they contain quite a bit more data than other license formats I had been working with. And the barcode in question is most definitely a PDF417 barcode because the USA requires all 50 states and Puerto Rico to put a PDF417 barcode on their licenses. I have multiple products in the app store that do just that, including PDF417 codes.
Drivers license barcode scanner android app how to#
Update: This is not a question about how to use the AVFoundation framework to read a barcode. I have not yet had this problem with any other state issued licenses, but I have not tried them all yet. It does for any other state license that I have so far tried. What should happen is a callback to: - (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputMetadataObjects:(NSArray *)metadataObjects fromConnection:(AVCaptureConnection *)connectionīut the callback never occurs when scanning the barcode on a Maryland license. Those attachments are able to read the same Maryland barcodes easily. My app also can use optional attachments from Honeywell or Infinite Peripherals that read barcodes using a laser scanner. However, I have been unable to get it to read any license from the state of Maryland. Works great with a number of different state drivers' licenses. I have been shipping an app for some time that uses AVFoundation Framwork to read the PDF417 barcode on a driver's license in order to capture data.
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