Force landscape mode in one ViewController using Swift

Question

I am trying to force only one view in my application on landscape mode, I am calling

override func shouldAutorotate() -> Bool {     print("shouldAutorotate")     return false }  override func supportedInterfaceOrientations() -> Int {     print("supportedInterfaceOrientations")     return Int(UIInterfaceOrientationMask.LandscapeLeft.rawValue) }  override func preferredInterfaceOrientationForPresentation() -> UIInterfaceOrientation {     return UIInterfaceOrientation.LandscapeLeft } 

The view is launched in the portrait mode, and keep rotating when I change the device orientation.
The shouldAutorotate is never called.
Any help would be appreciated.

Answer 1

It may be useful for others, I found a way to force the view to launch in landscape mode:

Put this in the viewDidLoad():

let value = UIInterfaceOrientation.landscapeLeft.rawValue UIDevice.current.setValue(value, forKey: "orientation") 

and,

override var shouldAutorotate: Bool {     return true } 

Answer 2

Swift 4

override func viewDidLoad() {     super.viewDidLoad()     let value = UIInterfaceOrientation.landscapeLeft.rawValue     UIDevice.current.setValue(value, forKey: "orientation") }  override var supportedInterfaceOrientations: UIInterfaceOrientationMask {     return .landscapeLeft }  override var shouldAutorotate: Bool {     return true } 

If your view is embedded in a navigation controller, the above alone won't work. You have to cascade up by the following extension after the class definition.

extension UINavigationController {  override open var shouldAutorotate: Bool {     get {         if let visibleVC = visibleViewController {             return visibleVC.shouldAutorotate         }         return super.shouldAutorotate     } }  override open var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation{     get {         if let visibleVC = visibleViewController {             return visibleVC.preferredInterfaceOrientationForPresentation         }         return super.preferredInterfaceOrientationForPresentation     } }  override open var supportedInterfaceOrientations: UIInterfaceOrientationMask{     get {         if let visibleVC = visibleViewController {             return visibleVC.supportedInterfaceOrientations         }         return super.supportedInterfaceOrientations     } }} 

Swift 3

override func viewDidLoad() {     super.viewDidLoad()     let value = UIInterfaceOrientation.landscapeLeft.rawValue     UIDevice.current.setValue(value, forKey: "orientation") }  private func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {     return UIInterfaceOrientationMask.landscapeLeft }  private func shouldAutorotate() -> Bool {     return true }