关闭MPC ViewController后，Segue没有运行

Question

我有一个动作可以弹出MPC视图控制器，但是一旦执行了该操作并且浏览器被关闭，我将直接回到我的旧视图控制器

func browserViewControllerDidFinish(
browserViewController: MCBrowserViewController!)  {
    // Called when the browser view controller is dismissed (ie the Done
    // button was tapped)
    func seguetoJoin(segue: UIStoryboardSegue, sender: AnyObject?) {
        var joinView: playMusicViewController = segue.destinationViewController as! playMusicViewController
         weak var delegate: MCBrowserViewControllerDelegate!

    }

    self.dismissViewControllerAnimated(true, completion: nil)

}

Answer 1

您似乎在正在接收didFinish回调的VC上调用dismissViewController。

您应该将安全代码移至需要执行安全代码的ViewController上，而不是在正在被关闭的ViewController上执行。

而且这些都没用

var joinView: playMusicViewController = segue.destinationViewController as! playMusicViewController
weak var delegate: MCBrowserViewControllerDelegate!

更新-

在下面的评论。

在mpcSubClass.m中var viewControllerToPeformSegue：UIViewController！

func browserViewControllerDidFinish(browserViewController: MCBrowserViewController!)  {
    // animation:false as your segue will have an animation
    self.dismissViewControllerAnimated(false, completion: nil)
    self.viewControllerToPerformSegue.handleBrowserDidFinish()
}

在viewControllerToPerformSegue.m中

// when you initialise the MPC VC subclass
mpcVCSubclass.viewControllerToPerformSegue = self

func handleBrowserDidFinish()
{
     self.performSegueWithIdentifier("mainViewSegue", sender: self)
}

override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) 
{
     if segue.identifier == "mainViewSegue"
    {
        let mainVC = segue.destination as! MainVC
        // now pass any data to your main VC that it can load in viewWillAppear
    }
}

在故事板中

将viewControllerToPerformSegue链接到MainVC并将名称命名为mainViewSegue

希望这可以帮助。