- URLSession 建议通过
连接迁移来优化网络切换场景下的 TCP 连接重建，降低网络的延迟。
import UIKit
class ViewController: UIViewController {
lazy var session: URLSession = {
let configuration = URLSessionConfiguration.default
// MultipathServiceType是一个枚举类型，App可以采用不同的策略来利用这些网络通道
configuration.multipathServiceType = .handover
let session = URLSession(configuration: configuration)
return session
}()
override func viewDidLoad() {
super.viewDidLoad()
}
}
- 打开系统通知设置界面的 URL Scheme 从
UIApplicationOpenNotificationSettingsURLString替换为openNotificationSettingsURLString。
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
// 新的通知设置URL Scheme
let urlString = UIApplication.openNotificationSettingsURLString
if let url = URL(string: urlString), UIApplication.shared.canOpenURL(url) {
UIApplication.shared.open(url, options: [:], completionHandler: nil)
}
}
}
-
UIScreen.main即将被废弃，建议使用(UIApplication.shared.connectedScenes.first as? UIWindowScene)?.screen。
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// 新的获取UIScreen尺寸的方法
if let screen = (UIApplication.shared.connectedScenes.first as? UIWindowScene)?.screen {
print(screen)
}
}
}
