class MyClass: UIViewController {
var playerViewController = AVPlayerViewController()
var playerView = AVPlayer()
var playerTimer = NSTimer()
override func viewDidAppear(animated:Bool) {
super.viewDidAppear(true)
presentViewController(GameViewController1(), animated: false, completion: nil)
let fileURL = NSURL(fileURLWithPath: "SomeFile.mp4")
playerView = AVPlayer(URL: fileURL)
playerViewController.player = playerView
self.presentViewController(playerViewController, animated: false){
self.playerViewController.showsPlaybackControls = false
self.playerViewController.player?.play()
self.playerTimer = NSTimer.scheduledTimerWithTimeInterval(4.2, target: self, selector:Selector("stopAfter4seconds:"), userInfo: nil, repeats: false)
}
}
func stopAfter4seconds(timer: NSTimer){
playerViewController.player = nil
playerViewController.removeFromParentViewController()
playerTimer.invalidate()
playerViewController.presentViewController(GameViewController1(), animated: false, completion: nil)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
}
我在' MyClass'上播放视频后(上述课程)
然后我删除视图并呈现具有GameScene的GameContollerView1 (下面的课程)
class GameViewController1: UIViewController, ADBannerViewDelegate {
@IBOutlet var skView: SKView!
override func viewDidLoad() {
super.viewDidLoad()
if skView.scene == nil {
let scene = GameScene(size: skView.bounds.size)
skView.presentScene(scene)
}
}
override func shouldAutorotate() -> Bool {
return true
}
override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
if UIDevice.currentDevice().userInterfaceIdiom == .Phone {
return UIInterfaceOrientationMask.AllButUpsideDown
} else {
return UIInterfaceOrientationMask.All
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
override func prefersStatusBarHidden() -> Bool {
return true
}
}
我最初的问题是,当我提出课程时,GameViewController1'我收到错误:
fatal error: unexpectedly found nil while unwrapping an Optional value
(lldb)
在这一行:
if skView.scene == nil {
所以它告诉我我的SKView!是的,你可以通过我的if语句看到,无论如何我正在寻找。
最奇怪的是,当我跳过MyClass'并首先将我的StoryBoard入口点指向GameViewContoller1,所有代码都正确播放。
AVPlayer()是否与此有关?从逻辑上讲,我的代码应该可以工作,但由于某些未知原因......它不是。任何帮助都将非常感激。
答案 0 :(得分:0)
OP答案:结束回到AppDelegate并从那里调用GameViewController1类。想了解一下,但这是为我做的整体代码:
let gameScene = UIStoryboard(name: "Main", bundle:nil).instantiateViewControllerWithIdentifier("GameViewController1") as UIViewController
let appDelegate = (UIApplication.sharedApplication().delegate as! AppDelegate)
appDelegate.window?.rootViewController = gameScene
我将此代码输入ViewDidDisappear,以使我的AV播放器消失并加载新视图:) ..你不知道这让我感到多么尴尬。
提示:请确保将其放在某种ViewDidLoad或其中一种视图方法中,否则您将收到错误“预期声明”