我有三个viewControllers，想法是，从ViewController到ViewOneController，再到ViewTwoControler，然后我想直接去ViewController，但是当我这样做时，我的内存有点上升，这就是viewControllerDelegate < / p>
protocol ViewControllerDelegate{
func ViewControllerDidFinish(controller: ViewController)
}
这是viewTwo，我试图去ViewController
protocol ViewTwoDelegate{
func ViewTwoDidFinish(controller: ViewTwo)
}
class ViewTwo: UIViewController, ViewControllerDelegate {
var button: UIButton!
var delegate: ViewTwoDelegate? = nil
override func viewDidLoad() {
super.viewDidLoad()
button = UIButton.buttonWithType(UIButtonType.System) as! UIButton
button.frame = CGRectMake(self.view.frame.size.width/2 - button.frame.size.width, 100, 250, 50)
button.layer.cornerRadius = 3
button.backgroundColor = UIColor.blueColor()
button.center.x = self.view.center.x
button.setTitle("ViewController", forState: UIControlState.Normal)
button.addTarget(self, action: "ViewControllerAction:", forControlEvents: UIControlEvents.TouchUpInside)
button.tintColor = UIColor.whiteColor()
view.addSubview(button)
}
func ViewControllerAction(sender: UIButton!){
var materialsViewController: ViewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewControllerWithIdentifier("view") as! ViewController
self.presentViewController(materialsViewController, animated: true, completion: nil)
}
func ViewControllerDidFinish(controller: ViewController){
self.dismissViewControllerAnimated(true, completion: nil)
}
其他两个控制器大多相同
编辑：我试过这个self.dismissViewControllerAnimated(true, completion: { () -> Void in
self.presentingViewController?.dismissViewControllerAnimated(true, completion: nil)
})
当我尝试这个时，它只解散自己，但没有呈现。
self.dismissViewControllerAnimated(true, completion: nil)
self.presentingViewController?.dismissViewControllerAnimated(true, completion: nil)
它可以工作，但对于两个viewControllers，如果我需要更多？
我真的需要一些帮助，请