Interface[7980:4477032] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[AVCaptureMetadataOutput setMetadataObjectTypes:] - unsupported type found. Use -availableMetadataObjectTypes.' about qrcodereader.swift

[yannickl]

Hi,

That's strange, normally it should works. Have you tried to check whether the device supports the AVMetadataObjectTypeQRCode?

Use the QRCodeReader.supportsMetadataObjectTypes() method to check that.

[yannickl]

Have you some news?

[carlosdelfino]

Hi Yannick,

I'm in another project at the time, next week will make the suggested test.
Thank you.

Carlos Delfino
Consultor
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2015-10-21 7:43 GMT-03:00 Yannick Loriot [email protected]:

Have you some news?

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#26 (comment)
.

I also am experiencing same crash in production sometimes. Please investigate the issue.

QRCodeReader: function signature specialization <Arg[0] = Owned To Guaranteed, Arg[1] = Dead> of static QRCodeReader.QRCodeReader.supportsMetadataObjectTypes (QRCodeReader.QRCodeReader.Type)([Swift.String]?) -> Swift.Bool + 2408

[southpawjoe]

I bet you're seeing this when the user has refused to allow the app to use the camera

[southpawjoe]

Yep, that's what it is. Try this in your code to see. If the user previously rejected use of the camera, you need to ask them again or disable the camera feature in your app:

if AVCaptureDevice.authorizationStatusForMediaType(AVMediaTypeVideo) != AVAuthorizationStatus.Authorized {
            AVCaptureDevice.requestAccessForMediaType(AVMediaTypeVideo, completionHandler: { (granted :Bool) -> Void in
                if granted == true
                {
                    // User granted
                    self.barcodereader = QRCodeReaderViewController(metadataObjectTypes: [AVMetadataObjectTypeQRCode])
                }
                else
                {
                    // User Rejected
                }
            });
        }