CIDetctor always remains nil, Cant read QRCode

问题

I cannot initialize CIDetector for reading QRCOde , It always remains nil. Here is my code :

let options = [CIDetectorAccuracy: CIDetectorAccuracyHigh]
            self.detector =  CIDetector(ofType: CIDetectorTypeQRCode, context: nil, options: options)

If I replace CIDetectorTypeQRCode with CIDetectorTypeRectangle it get initialized but I need to read QRCode

I am trying from last two days, Please help

回答1:

Finally got that working:

Follow the steps:

1. Select XcodeProject
2. Select Target
3. Select BuildSettings
4. Make Sure ValidArchitecture have arm64 or replace it with (arm64 armv7 armv7s)

来源：https://stackoverflow.com/questions/35885137/cidetctor-always-remains-nil-cant-read-qrcode