如何在SceneDelegate中使用flutter方法处理程序？

Question

我有一个音乐扑动应用程序，现在我正在实现在spotify ios sdk与spotify ios sdk集成的本地播放器代码。

我正在尝试运行，但iOS13.6手机上的spotify连接功能不起作用，我看到IOS 13+以后的版本需要SceneDelegate。

现在我纠结于如何在SceneDelegate中添加Flutter方法处理程序。

当我在SceneDelegate上添加Flutter方法处理程序时，我得到了下面的错误，它将被卡住在断点处，下一步不会执行。

我正在尝试通过遵循AVFoundation文档来制作一个简单的视频取景器。应用程序每次启动时都会终止。我如何解决这个特定的错误？

Thread 1: EXC_BREAKPOINT (code=1, subcode=0x102d3c320)

Answer 1

以下步骤帮助我在SceneDelegate中使用Flutter应用程序

符合UIWindowSceneDelegate的

1. 创建包含子类SceneDelegate.swift的UIResponder

@available(iOS 13.0, *)
class SceneDelegate: UIResponder, UIWindowSceneDelegate {
    
    var window: UIWindow?
    //....

}

1. 将SceneManifest添加到Info.plist，其中我们将SceneDelegate声明为scene

的默认配置

<key>UIApplicationSceneManifest</key>
    <dict>
        <key>UIApplicationSupportsMultipleScenes</key>
        <true/>
        <key>UISceneConfigurations</key>
        <dict>
            <key>UIWindowSceneSessionRoleApplication</key>
            <array>
                <dict>
                    <key>UISceneConfigurationName</key>
                    <string>Default Configuration</string>
                    <key>UISceneDelegateClassName</key>
                    <string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
                    <key>Storyboard Name</key>
                    <string>Main</string>
                </dict>
            </array>
        </dict>
    </dict>

1. 更新AppDelegate.swift支持iOS 13

以外的其他版本

    override func application( _ application: UIApplication,
                               didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        guard #available(iOS 13.0, *) else {
            GeneratedPluginRegistrant.register(with: self)
            guard let controller = window?.rootViewController as? FlutterViewController else { return true }
            //Confugure 'controller' as needed
            return super.application(application, didFinishLaunchingWithOptions: launchOptions)
        }
        return true
    }

支持iOS 13+的

1. 更新SceneDelegate.swift

    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {

        guard let windowScene = scene as? UIWindowScene else { return }
        
        window = UIWindow(windowScene: windowScene)
        let flutterEngine = FlutterEngine(name: "SceneDelegateEngine")
        flutterEngine.run()
        GeneratedPluginRegistrant.register(with: flutterEngine)
        let controller = FlutterViewController.init(engine: flutterEngine, nibName: nil, bundle: nil)
        window?.rootViewController = controller
        window?.makeKeyAndVisible()
    }