// // ViewController.swift // AsynWait // // Created by shengjie on 2022/2/9. // import UIKit class ViewController: UIViewController { @IBOutlet var imageView: UIImageView! override func viewDidLoad() { super.viewDidLoad() /// 老方法 async { let data = await getImage() DispatchQueue.main.async { self.imageView.image = UIImage(data: data) } } /// 新方法 Task(priority: .low) { let data = await getImage() DispatchQueue.main.async { self.imageView.image = UIImage(data: data) } } // Do any additional setup after loading the view. } func getImage() async -> Data { do { let (d, _) = try await URLSession.shared.data(for: URLRequest(url: URL(string: "https://raw.githubusercontent.com/1401788197/VideoSliderCrop/master/VideoPlayDemo/IMG_0950.jpg")!)) return d } catch { return Data() } } }
原文地址:https://www.cnblogs.com/ZhangShengjie/p/15875441.html
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