swift 强制横屏

@main
class AppDelegate: UIResponder, UIApplicationDelegate {

    var blockRotation = Bool()
    
    func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {
        if blockRotation {
            return .allButUpsideDown //支持横竖屏旋转
//            return .landscapeLeft //强制横屏时这里可保持一个方向
        }
        return .portrait
    }
}

class NetPlayerController: BaseViewController {
    //App信息
    let App_Delegate = (UIApplication.shared.delegate) as! AppDelegate

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        App_Delegate.blockRotation = true
        setNewOrientation(fullScreen: true)
    }
    
    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)
        App_Delegate.blockRotation = false
        //判断退出时是否是横屏
        if UIApplication.shared.statusBarOrientation.isLandscape {
            //是横屏让变回竖屏
            setNewOrientation(fullScreen: false)
        }
    }
    
    //横竖屏
    func setNewOrientation(fullScreen: Bool) {
        if fullScreen { //横屏
            let resetOrientationTargert = NSNumber(integerLiteral: UIInterfaceOrientation.unknown.rawValue)
            UIDevice.current.setValue(resetOrientationTargert, forKey: "orientation")
            
            let orientationTarget = NSNumber(integerLiteral: UIInterfaceOrientation.landscapeRight.rawValue)
            UIDevice.current.setValue(orientationTarget, forKey: "orientation")
            
        } else { //竖屏
            let resetOrientationTargert = NSNumber(integerLiteral: UIInterfaceOrientation.unknown.rawValue)
            UIDevice.current.setValue(resetOrientationTargert, forKey: "orientation")
            
            let orientationTarget = NSNumber(integerLiteral: UIInterfaceOrientation.portrait.rawValue)
            UIDevice.current.setValue(orientationTarget, forKey: "orientation")
        }
    }
    
}