How To Force Landscape Orientation in Swift

Forcing landscape is a common task for iOS games or video.

How To Force Landscape Orientation In A View Controller In Swift

In your viewDidLoad add the following lines:

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

You’ll also need to add supportedInterfaceOrientations:

override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
    return .landscapeLeft

And shouldAutorotate:

override var shouldAutorotate: Bool {
    return true

How To Force Landscape Orientation For Whole App In Swift

In your AppDelegate class define the property deviceOrientation:

var deviceOrientation = UIInterfaceOrientationMask.landscape

Then also add a supportedInterfaceOrientationsFor function in your AppDelegate:

func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {
    return deviceOrientation

Now your app should be in landscape. Note that you can choose .landscapeLeft or .landscapeRight.

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Eddy Chung

I teach iOS development on

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