How can I read a value from key (stringValue)? - swift

Question

I need help....I only want to print the key value, I don't want to read all the Object
I created a QRCode using this code:
#IBAction func btnCreate(_ sender: Any) {
if sectionNameTxt.text == "" || sectionExtTxt.text == "" || sectionLocationTxt.text == "" {
}else{
let dic = ["sectionName": sectionNameTxt.text!,"sectionExt": sectionExtTxt.text!,"sectionLocation": sectionLocationTxt.text!]
print("dic:\(dic)")
imgView.image = QRGenerator.generate(from: dic)
do {
let jsonData = try JSONEncoder().encode(dic)
if let filter = CIFilter(name: "CIQRCodeGenerator") {
filter.setValue(jsonData, forKey: "inputMessage")
let transform = CGAffineTransform(scaleX: 10, y: 10)
if let output = filter.outputImage?.transformed(by: transform) {
imgView.image = UIImage(ciImage: output)
}
}
} catch {
print(error.localizedDescription)
}
}
}
This code is to read the QRCode:
func metadataOutput(_ output: AVCaptureMetadataOutput, didOutput metadataObjects: [AVMetadataObject], from connection: AVCaptureConnection) {
if let metadataObject = metadataObjects.first{
guard let readleObject = metadataObject as? AVMetadataMachineReadableCodeObject else {return}
AudioServicesPlaySystemSound(SystemSoundID(kSystemSoundID_Vibrate))
print((readleObject.stringValue!))
session.stopRunning()
self.dismiss(animated: true, completion: nil)
}
output :
{"sectionName":"pharmacy","sectionExt":"1010","sectionLocation":"Main Building - Ground Floor"}
I want read the value of the key1(sectionName) and key2(sectionExt) and key3(sectionLocation) ?

Answer 1

You can use JSONSerialization.
if let data = readleObject.stringValue.data(using: .utf8) {
if let json = try? JSONSerialization.jsonObject(with: data, options: []), let dataDict = json as? NSDictionary {
if let sectionName = dataDict["sectionName"] as? String
}
}
}
You can do the rest.