配置iOS 16 屏幕旋转适配实例详解

@main
class AppDelegate: UIResponder, UIApplicationDelegate {
    var window: UIWindow?
    // 定义一个 bool 类型的变量
    var isFullScreen: Bool = false
    func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {
        if isFullScreen {
            if #available(iOS 16.0, *) {
                // 16 及以上可以做到根据屏幕方向适配横屏
                return .landscape
            } else {
                // 16 以下不方便做, 所以我们是强制 右横屏
                return .landscapeRight
            }
        }
        return .portrait
    }
}

func switchOrientation(isFullScreen: Bool) {
        let kAppdelegate = UIApplication.shared.delegate as? AppDelegate
        kAppdelegate?.isFullScreen = isFullScreen
        // 设置屏幕为横屏
        if #available(iOS 16.0, *) {
            setNeedsUpdateOfSupportedInterfaceOrientations()
            guard let scence = UIApplication.shared.connectedScenes.first as? UIWindowScene else {
                return
            }
            let orientation: UIInterfaceOrientationMask = isFullScreen ? .landscape : .portrait
            let geometryPreferencesIOS = UIWindowScene.GeometryPreferences.iOS(interfaceOrientations: orientation)
            scence.requestGeometryUpdate(geometryPreferencesIOS) { error in
                print("强制\(isFullScreen ? "横屏" : "竖屏" )错误: \(error)")
            }
        } else {
            let oriention: UIDeviceOrientation = isFullScreen ? .landscapeRight : .portrait
            UIDevice.current.setValue(oriention.rawValue, forKey: "orientation")
            UIViewController.attemptRotationToDeviceOrientation()
        }
        // 更新 横竖屏对应的 UI 
        // ...
    }

    // 播放器 - 全屏按钮切换回调
    func playerViewRotateScreen(isFull: Bool) {
        switchOrientation(isFullScreen: isFull)
    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        UIDevice.current.beginGeneratingDeviceOrientationNotifications()
        NotificationCenter.default.addObserver(self, selector: #selector(screenChangedOrientation(_:)), name: UIDevice.orientationDidChangeNotification, object: nil)
        navigationController?.interactivePopGestureRecognizer?.isEnabled = false
    }
    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)
        navigationController?.interactivePopGestureRecognizer?.isEnabled = true
    }
    override func viewDidDisappear(_ animated: Bool) {
        super.viewDidDisappear(animated)
        NotificationCenter.default.removeObserver(self)
        UIDevice.current.endGeneratingDeviceOrientationNotifications()
    }
    // 横竖屏监听
    @objc private func screenChangedOrientation(_ notification: Notification) {
        let info = notification.userInfo
        guard let animated = info?["UIDeviceOrientationRotateAnimatedUserInfoKey"] as? Int, animated == 1 else {
            return
        }
        let orientation = UIDevice.current.orientation
        if orientation == UIDeviceOrientation.landscapeLeft || orientation == UIDeviceOrientation.landscapeRight {
            // 横屏
            videoView.changeScreenOrientation(isFull: true)
        } else if orientation == UIDeviceOrientation.portrait {
            // 竖屏
            videoView.changeScreenOrientation(isFull: false)
        }
    }