Iphone 14 Pro Max not detecting

[cpalomares]

Android and all other iPhones can scan fine but the iPhone 14 Pro Max the camera get blurry, does anyone knows if this is a know issue. Thanks

[kleberrios]

I noticed the same issue. Actually, Iphone 14 Pro Max works fine if you are scanning a qrCode with fewer dots (modules) quantity. However, when the QR code has many modules, it doesn't get detected. In my case I need a qrCode with a huge data storage capacity, so didn't work. Did you find a workaround? Cannot Read

Can Read

[cpalomares]

No, in the end, we decided to build the App in Flutter, I wanted to use MAUI, but the barcode scan is too slow and has issues with detected barcodes from different angles. Using ML in FLutter greatly improved Barcode and QR code detection.

[peter-bozovic]

I'm having the same issue with my users having iPhone 14 Pro Max The camera is clearly not able to focus the QR code while it's on reasonable distance to be scanned ! Is there any fix or workaround for this ?

@Redth Maybe the module is not using the right camera ? There is option to switch between front and back cameras, but is there any way to switch between multipe back cameras ?

[KieranMaclagan]

This worked for me in MAUI https://github.com/Redth/ZXing.Net.Mobile/issues/1041#issuecomment-1473647244

[christianrr]

For me, the trick was to select Triple or Dual Camera in first place and then set the zoom factor to VirtualDeviceSwitchOverVideoZoomFactors.First(). This way we get good scanning results for all iPhones.

// first try to use triple camera
captureDevice = devices.FirstOrDefault(x => x.DeviceType == AVCaptureDeviceType.BuiltInTripleCamera);

// then try to use dual camera
if (captureDevice == null)
   captureDevice = devices.FirstOrDefault(x => x.DeviceType == AVCaptureDeviceType.BuiltInDualCamera);

if (captureDevice == null)
   captureDevice = devices.FirstOrDefault();

...

try
{
    // try to set correct zoom factor for macro mode
    if ((captureDevice.DeviceType == AVCaptureDeviceType.BuiltInTripleCamera ||
            captureDevice.DeviceType == AVCaptureDeviceType.BuiltInDualCamera) &&
        captureDevice.VirtualDeviceSwitchOverVideoZoomFactors.Any())
        captureDevice.VideoZoomFactor =
            (float)captureDevice.VirtualDeviceSwitchOverVideoZoomFactors.First();
}
catch (Exception)
{
    // ignored
}

[nmg196]

For me, the trick was to select Triple or Dual Camera in first place and then set the zoom factor to VirtualDeviceSwitchOverVideoZoomFactors.First(). This way we get good scanning results for all iPhones.

// first try to use triple camera
captureDevice = devices.FirstOrDefault(x => x.DeviceType == AVCaptureDeviceType.BuiltInTripleCamera);

..but where is captureDevice? Where are you putting this code and how did you get a reference to captureDevice?