Question

我在我的应用程序中使用qr代码，它也以AVMetadataMachineReadableCodeObject的形式给出了响应。这是我的代表处理响应。

 func captureOutput(_ captureOutput: AVCaptureOutput!, didOutputMetadataObjects metadataObjects: [Any]!, from connection: AVCaptureConnection!) {



    if strFound == ""
    {

    // Check if the metadataObjects array is not nil and it contains at least one object.
    if metadataObjects == nil || metadataObjects.count == 0 {
        qrCodeFrameVieww?.frame = CGRect.zero
        messageLabel.text = "No QR/barcode is detected"
        return
    }

    // Get the metadata object.
    let metadataObj = metadataObjects[0] as! AVMetadataMachineReadableCodeObject

    if supportedCodeTypes.contains(metadataObj.type) {
        // If the found metadata is equal to the QR code metadata then update the status label's text and set the bounds
        let barCodeObject = videoPreviewLayer?.transformedMetadataObject(for: metadataObj)
        //qrCodeFrameVieww?.frame = barCodeObject!.bounds

        if defaults.value(forKey: "beep") as! Bool != false
        {
            playSound()

        }
        if defaults.value(forKey: "vibrate") as! Bool != false
        {
            AudioServicesPlayAlertSound(SystemSoundID(kSystemSoundID_Vibrate))

            AudioServicesPlaySystemSoundWithCompletion(SystemSoundID(kSystemSoundID_Vibrate), nil)

        }


        print("type is",metadataObj.type)

        print("metaDataObj",metadataObj)

         foundCode(code: metadataObj.stringValue as NSString)

        if metadataObj.stringValue != nil {


            let stUrl = metadataObj.stringValue as String
            print("The Url Is \(stUrl)")

            if defaults.value(forKey: "copyToClipboard") as! Bool == true
            {
                UIPasteboard.general.string = stUrl



            }

}

我的问题是，qrcode代码可以扫描vcards，电话号码，电子邮件，地理位置和日历事件等。我怎么知道我在响应字符串中有什么样的数据，就好像它是一个相关的vcard还是网址或日历活动？

Answer 1

Phrase phrase = new Phrase();
var text1 = new Chunk("hello");
var text2=new Chunk("world");

phrase.add();

Ios - Recongnise QRcode响应Typee

1 个答案: