二维码---相册识别 swift
发布时间:2020-12-14 06:36:02 所属栏目:百科 来源:网络整理
导读:swift 3.0 xcode 8.1 需要在info.plist 添加 Privacy - Photo Library Usage Description YES import UIKitclass ViewController: UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate { override func viewDidLoad() { super
swift 3.0 xcode 8.1需要在info.plist 添加 Privacy - Photo Library Usage Description YESimport UIKit class ViewController: UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate { override func viewDidLoad() { super.viewDidLoad() let button = UIButton.init(type: UIButtonType.custom) button.frame = CGRect.init(x: 20,y: 300,width: 300,height: 40) button.setTitle("点击获取相册二维码图片信息",for: UIControlState.normal) button.setTitleColor(UIColor.black,for: UIControlState.normal) button.addTarget(self,action: #selector(self.getImage),for: UIControlEvents.touchUpInside) self.view.addSubview(button) } func getImage() { let imagePickCST = UIImagePickerControllerSourceType.photoLibrary let imagePickC = UIImagePickerController.init() imagePickC.sourceType = imagePickCST imagePickC.delegate = self self.present(imagePickC,animated: true,completion: nil) } func imagePickerController(_ picker: UIImagePickerController,didFinishPickingMediaWithInfo info: [String : Any]) { picker.dismiss(animated: true,completion: nil) //获取到的原始图片 let image = info[UIImagePickerControllerOriginalImage] let imageData = UIImagePNGRepresentation(image as! UIImage) let ciImage = CIImage(data: imageData!) //初始化一个检测器 let detector = CIDetector(ofType: CIDetectorTypeQRCode,context: nil,options: [CIDetectorAccuracy:CIDetectorAccuracyLow]) //检测到的结果数组 let array = detector?.features(in: ciImage!) //取出数组中的第一个结果 if (array?.count)! > 0 { let result: CIQRCodeFeature = array!.first as! CIQRCodeFeature print(result.messageString!) } } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |