How to lock orientation of one view controller to portrait mode only in Swift

Question

Since my app got support for all orientation. I would like to lock only portrait mode to specific UIViewController.

e.g. assume it was Tabbed Application and when Si

Answer 1

To set Landscape orientation to all view of your app & allow only one view to All orientations (to be able to add camera roll for example):

In AppDelegate.swift:

var adaptOrientation = false

In: didFinishLaunchingWithOptions

NSNotificationCenter.defaultCenter().addObserver(self, selector: "adaptOrientationAction:", name:"adaptOrientationAction", object: nil)

Elsewhere in AppDelegate.swift:

func application(application: UIApplication, supportedInterfaceOrientationsForWindow window: UIWindow?) -> Int {
    return checkOrientation(self.window?.rootViewController)
}

func checkOrientation(viewController:UIViewController?)-> Int{
    if (adaptOrientation == false){
        return Int(UIInterfaceOrientationMask.Landscape.rawValue)
    }else {
        return Int(UIInterfaceOrientationMask.All.rawValue)
    }
}

func adaptOrientationAction(notification: NSNotification){
    if adaptOrientation == false {
        adaptOrientation = true
    }else {
        adaptOrientation = false
    }
}

Then in the view that segue to the one you want to be able to have All orientations:

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
    if (segue.identifier == "YOURSEGUE") {
        NSNotificationCenter.defaultCenter().postNotificationName("adaptOrientationAction", object: nil)
    }
}

override func viewWillAppear(animated: Bool) {
    if adaptOrientation == true {
        NSNotificationCenter.defaultCenter().postNotificationName("adaptOrientationAction", object: nil)
    }
}

Last thing is to tick Device orientation: - Portrait - Landscape Left - Landscape Right