No keyboard when presenting Game Center Modal view controller in landscape in Spritekit

Question

My app is running Spritekit and is designed for Landscape orientation only, and I can't for the life of me figure out why when I present the modal view for authenticating a player in Game Centre, the keyboard is missing.

Here is my code at the moment.

class GameViewController: UIViewController, ADBannerViewDelegate, GKGameCenterControllerDelegate {
var gameCenterEnabled: Bool = false
var initialized: Bool = false
let leaderBoardIdentifier: String = "squareBeatLeaderboard"
@IBOutlet var bannerView: ADBannerView!

override func viewWillLayoutSubviews()  {
    super.viewWillLayoutSubviews()
    // Configure the view.
    if initialized == false {
        let skView = self.originalContentView as SKView
        let scene = GameScene.sceneWithSize(CGSize(width: self.originalContentView.frame.size.width, height: self.originalContentView.frame.size.height))
        skView.ignoresSiblingOrder = true
        scene.scaleMode = SKSceneScaleMode.ResizeFill

        self.authenticateLocalPlayer()

        skView.presentScene(scene)
        initialized = true
    }
}

func authenticateLocalPlayer() {
    let localPlayer = GKLocalPlayer()
    localPlayer.authenticateHandler = {(viewController: UIViewController!, error: NSError!) -> Void in
        // handle authentication
        if let viewController = viewController {
            self.presentViewController(viewController, animated: true, completion: nil)
            //keyboard
            NSLog("log the user in") // why the hell is there no keyboard
        } else {
            if GKLocalPlayer().authenticated == true {
                self.gameCenterEnabled = true
            } else {
                self.gameCenterEnabled = false
            }
        }
    }
}

The 'initialized' boolean is to make sure the set up isn't loaded again when my iAd refreshes.

When the Game Centre login view comes up, it looks all fine except for the fact that the keyboard isn't in the correct place. In the iPhone 4S simulator, this is what happens: http://i.imgur.com/TJjfYq2.png

Answer 1

This looks like a rotation error. Like the keyboard is presenting coordinates from portrait, but the view is in landscape. If your app is set to only be on landscape in the info.plist file, then you must be overriding it somehow. If it is not set there, then I would lock it down, unless you need portrait orientations.

The fix for when you have mixed orientations but somehow a view has the presentation incorrect, force the landscape mode for the view by setting the orientation mask:

https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIApplication_Class/#//apple_ref/c/tdef/UIInterfaceOrientationMask

Tutorial here:

http://makeapppie.com/tag/uiinterfaceorientationmask/

Other code examples can be found within the Ray Wenderlich tutorial below. Download the starter project:

http://www.raywenderlich.com/82022/create-game-like-cut-the-rope-using-sprite-kit-swift