ios - 我可以在我的 Mac Catalyst iOS 应用程序上禁用窗口大小调整功能吗

Question

我正在迁移我的 iOS 应用程序以支持 MacCatalyst，但我想防止用户调整窗口大小。

你有什么建议吗？

Answer 1

从 Xcode11 Beta 5 开始，UIWindowScene该类开始支持该属性sizeRestrictions。

如果将sizeRestrictions.maximumSize和设置sizeRestrictions.minimumSize为相同的值，则窗口将无法调整大小。为此，只需在您的application:didFinishLaunchingWithOptions方法中调用它（如果您使用的是UIKit）：

    UIApplication.shared.connectedScenes.compactMap { $0 as? UIWindowScene }.forEach { windowScene in
        windowScene.sizeRestrictions?.minimumSize = CGSize(width: 480, height: 640)
        windowScene.sizeRestrictions?.maximumSize = CGSize(width: 480, height: 640)
    }

如果您使用的是SwiftUI而不是 UIKit，您实际上应该将它添加到scene(_:willConnectTo:options:)您的场景委托中。

注意：需要在 OSX 10.15 Beta 5 或更高版本中运行，否则会崩溃

Answer 2

在 SwiftUI 应用程序生命周期中，这对我有用：

import SwiftUI

@main
struct MyApp: App {

  @UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
  
  var userSettings = UserSettings()
  
  var body: some Scene {
    WindowGroup {
      ContentView()
        .environmentObject(userSettings)
        .environmentObject(KeyboardManager())
        .onOpenURL(perform: { url in
          let verificationCode = url.lastPathComponent
          log.info(" Verification Code: \(verificationCode)")
          userSettings.verificationCode = verificationCode
        })
      .onReceive(NotificationCenter.default.publisher(for: UIScene.willConnectNotification)) { _ in
        #if targetEnvironment(macCatalyst)
        // prevent window in macOS from being resized down
          UIApplication.shared.connectedScenes.compactMap { $0 as? UIWindowScene }.forEach { windowScene in
            windowScene.sizeRestrictions?.minimumSize = CGSize(width: 800, height: 1000)
          }
        #endif
      }
    }
  }
}

Answer 3

在文件 SceneDelegate.swift 中，添加以下内容：

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
    // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
    // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
    // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
    UIApplication.shared.connectedScenes.compactMap { $0 as? UIWindowScene }.forEach { windowScene in
        windowScene.sizeRestrictions?.minimumSize = CGSize(width: 1268, height: 880)
        windowScene.sizeRestrictions?.maximumSize = windowScene.sizeRestrictions!.minimumSize
    }
    
    guard let _ = (scene as? UIWindowScene) else { return }
}