我可以在我的 Mac Catalyst iOS 應用程序上禁用 window 調整大小功能嗎

Question

我正在遷移我的 iOS 應用程序以支持 MacCatalyst，但我想防止 window 被用戶調整大小。

你有什么建議嗎？

Answer 1

從 Xcode11 Beta 5 開始， UIWindowScene類開始支持屬性sizeRestrictions 。

如果將sizeRestrictions.maximumSize和sizeRestrictions.minimumSize設置為相同的值，則窗口將無法調整大小。 為此，只需在您的application:didFinishLaunchingWithOptions方法中調用它（如果您使用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，您實際上應該將它添加到場景委托中的scene(_:willConnectTo:options:)中。

注意：您需要在 OSX 10.15 Beta 5 或更高版本中運行此程序，否則會崩潰

Answer 2

在 SwiftUI 應用程序生命周期中，這對我有用：

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，添加以下內容：

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 }
}

Answer 4

對於 Objective-C 嘗試

for (UIScene* scene in UIApplication.sharedApplication.connectedScenes) {
    if ([scene isKindOfClass:[UIWindowScene class]]) {
        UIWindowScene* windowScene = (UIWindowScene*) scene;
        windowScene.sizeRestrictions.minimumSize = CGSizeMake(480, 640);
    }
}