视图的3D立方体动画由迅速

Question

我想通过使用swift来获得3D立方体3或4视图（UIViewController）。我关注这个网站Link。 我的代码是吼叫。当我只选择3个视图时，我想要3d立方体视图。但我的项目正在全力以赴观看3D。怎么能停止所有页面的3d立方体。

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, CubeControllerDataSource {

var window: UIWindow?


func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

    self.window = UIWindow.init(frame: UIScreen.mainScreen().bounds)
    let cubeVC : CubeController = CubeController()
    cubeVC.dataSource = self
    cubeVC.wrapEnabled = true
    self.window?.rootViewController = cubeVC
    self.window?.makeKeyAndVisible()

    // Override point for customization after application launch.
    return true
}

func numberOfViewControllersInCubeController(cubeController: CubeController!) -> Int {
    return 3
}

func cubeController(cubeController: CubeController!, viewControllerAtIndex index: Int) -> UIViewController! {

    let storyboard = UIStoryboard(name: "Main", bundle: nil)

    switch (index % 3){
        case 0:
            return storyboard.instantiateViewControllerWithIdentifier("VC1")
        case 1:
            return storyboard.instantiateViewControllerWithIdentifier("VC2")
        case 2:
            return storyboard.instantiateViewControllerWithIdentifier("VC3")
        default:
            return nil
    }
}