ReaderWidget does not scan anything on iPad

[kaboc]

I'm really impressed that it works really stable on Android. I don't have any issues that I had with other similar packages. It's great.

However, I tried it next on my iPad and found that the same code wouldn't work. Are you aware of the issue that onScan is never called on iPadOS? I have no idea if the same thing also happens on iOS because I don't have an iPhone.

It appears that it's only an issue of scanning.

• Camera preview is working.
• The onControllerCreated callback is called.
• scannerOverlay has no issue either.

Just FYI, a message "setFlashModeFailed: Devide does not have flash capabilities" is printed in the console when the camera is ready, although I don't think this has anything to do with the issue.

[khoren93]

Hi @kaboc Thank you for an issue report. I did not have such a problem, I tested on iPad Pro 11 and iPad Pro 9,7 and everything works fine. Can you please try scanning from an image and tell me if it works?

[kaboc]

The same QR code as the one that wasn't scanned with ReaderWidget was successfully scanned using the processCameraImage() method in startImageStream() on the CameraController obtained with onControllerCreated.

Another QR code was scanned with readBarcodeImageUrl() too.

Hope this gives you a clue.

[kaboc]

My environment

• Flutter: 3.0.5
• iPad: 8th gen (OS: 15.5)

[LinHaoLove]

Yes, I have the same problem. Flutter: 3.0.5 iPad Air ==>iOS 12.5.5 (16H62) iPad mini 3 ==>iOS 12.5.5 (16H62) iPad mini 5 ==>iOS 15.6 (19G71)

I just only use the ReaderWidget. I don't know how to refer to CameraController.

[khoren93]

@LinHaoLove to refer to CameraController you can use onControllerCreated property like this

ReaderWidget(
    onScan: (CodeResult result) {
      // do something with the result
    },
    onControllerCreated: (controller) {
      // do something with the controller
    },
)

[khoren93]

Fixed in v1.0.1