iOS 16 native scan code rectOfInterest setting failed

Question

Created Sep ’22

Replies 3

Boosts 2

Views 2.5k

Participants 4

I set rectOfInterest to AVCaptureMetadataOutput, which is a rectangular box. iOS15 has always been useful. After upgrading to iOS16, it doesn't work. Can only be in the middle of the screen, which is not what I want, does anyone know how to fix this? Looking for your help~

Answered by aCoderrr in 728824022

I also encountered the same problem, on iOS16, it seems that the QR code cannot be set at the same time as the barcode. //

 self.output.metadataObjectTypes=@[AVMetadataObjectTypeQRCode,
                 AVMetadataObjectTypeEAN13Code,
                 AVMetadataObjectTypeEAN8Code,
                 AVMetadataObjectTypeUPCECode,
                 AVMetadataObjectTypeCode39Code,
                 AVMetadataObjectTypeCode39Mod43Code,
                 AVMetadataObjectTypeCode93Code,
                 AVMetadataObjectTypeCode128Code,
                 AVMetadataObjectTypePDF417Code,
                 AVMetadataObjectTypeDataMatrixCode];

// Before iOS15, I set it like this and it worked fine. After iOS16, it fails.

I removed, AVMetadataObjectTypeQRCode AVMetadataObjectTypeDataMatrixCode, it can correctly identify the barcode.

But before iOS15, QR code and barcode are used at the same time, this is a bug of iOS16 system, I hope to get professional answers from Apple developers, thank you!

Boost

Answer 1

aCoderrr OP

Sep ’22

To be precise, the barcode recognition range is only in the middle of the screen, and the QR code is not affected.

2

Answer 2

aCoderrr OP

Sep ’22

Accepted Answer

I also encountered the same problem, on iOS16, it seems that the QR code cannot be set at the same time as the barcode. //

 self.output.metadataObjectTypes=@[AVMetadataObjectTypeQRCode,
                 AVMetadataObjectTypeEAN13Code,
                 AVMetadataObjectTypeEAN8Code,
                 AVMetadataObjectTypeUPCECode,
                 AVMetadataObjectTypeCode39Code,
                 AVMetadataObjectTypeCode39Mod43Code,
                 AVMetadataObjectTypeCode93Code,
                 AVMetadataObjectTypeCode128Code,
                 AVMetadataObjectTypePDF417Code,
                 AVMetadataObjectTypeDataMatrixCode];

// Before iOS15, I set it like this and it worked fine. After iOS16, it fails.

I removed, AVMetadataObjectTypeQRCode AVMetadataObjectTypeDataMatrixCode, it can correctly identify the barcode.

But before iOS15, QR code and barcode are used at the same time, this is a bug of iOS16 system, I hope to get professional answers from Apple developers, thank you!

2

Answer 3

arifkocoglu OP

May ’23

Why isn't this issue being resolved by Apple? It has been 8 months since the bug was reported, and we can't find an alternative solution. Could you please resolve the issue as soon as possible?

1

	self.output.metadataObjectTypes=@[AVMetadataObjectTypeQRCode,
	AVMetadataObjectTypeEAN13Code,
	AVMetadataObjectTypeEAN8Code,
	AVMetadataObjectTypeUPCECode,
	AVMetadataObjectTypeCode39Code,
	AVMetadataObjectTypeCode39Mod43Code,
	AVMetadataObjectTypeCode93Code,
	AVMetadataObjectTypeCode128Code,
	AVMetadataObjectTypePDF417Code,
	AVMetadataObjectTypeDataMatrixCode];