我是xcode和swift的新手，正在对现有应用进行更改。在我的主视图控制器之外，我使用自定义segue来展开以实现从左侧向后滑出的菜单页面视图。我的两个菜单项，在触摸时，会将您带回主视图控制器而不是堆栈中的视图，并嵌入新屏幕或显示新信息。当我使用unwind segue时，它会快速闪烁它应该快速的内容，然后转到我的主控制器的默认值，我想知道如何解决这个问题。我自定义segue的代码：
class MHLeftSlideSegue: UIStoryboardSegue {
override func perform() {
let src = self.sourceViewController
let dst = self.destinationViewController
src.view.superview?.insertSubview(dst.view, aboveSubview: src.view)
dst.view.transform = CGAffineTransformMakeTranslation(-src.view.frame.size.width, 0)
UIView.animateWithDuration(0.25, delay: 0.0, options: UIViewAnimationOptions.CurveEaseInOut, animations: {
dst.view.transform = CGAffineTransformMakeTranslation(0, 0)
}, completion: { finished in
src.presentViewController(dst, animated: false, completion: nil)
})
}
}
class UIStoryboardUnwindLeftSlideSegue: UIStoryboardSegue {
override func perform() {
let src = self.sourceViewController as UIViewController
let dst = self.destinationViewController as UIViewController
src.view.superview?.insertSubview(dst.view, belowSubview: src.view)
src.view.transform = CGAffineTransformMakeTranslation(0, 0)
UIView.animateWithDuration(0.25, delay: 0.0, options: UIViewAnimationOptions.CurveEaseInOut, animations: {
src.view.transform = CGAffineTransformMakeTranslation(-src.view.frame.size.width, 0)
}, completion: { finished in
src.dismissViewControllerAnimated(false, completion: nil)
})
}
}
我正在使用第一部分从我的主VC中移动一个移动菜单按钮到我的菜单VC，并且展开将通过关闭按钮返回到我的主VC。我遇到的问题涉及＆＃34;搜索＆＃34;和＃34;热门搜索＆＃34;链接回MainVC。搜索信息在主VC中显示此代码：
if MHMainVC.fromSearchMenu == true {
MHMainVC.fromSearchMenu = false
setSearchState(!isSearching)
}
@IBAction func onSearch(sender: AnyObject!) {
setSearchState(!isSearching)
}
func setSearchState(search: Bool) -> Void {
isSearching = search
if isSearching == false {
self.txtSearch.text = nil
self.txtSearch.resignFirstResponder()
self.txtSearch.hidden = true
self.btnSearch.setImage(UIImage(named: "btnSearch"), forState: UIControlState.Normal)
self.constraintLeftSpaceOfSearchButton.constant = 56
self.btnCalendar.hidden = false
self.tblSearchResult.hidden = true
} else {
self.txtSearch.becomeFirstResponder()
self.txtSearch.hidden = false
self.btnSearch.setImage(UIImage(named: "btnClose"), forState: UIControlState.Normal)
self.constraintLeftSpaceOfSearchButton.constant = 8
self.btnCalendar.hidden = true
self.tblSearchResult.hidden = false
}
updateConstraint(true)
}
和＃34;热门搜索＆＃34;代码来自MHTopSearchesVC转到嵌入主VC的Container VC，代码是
class MHContainerVC: UIViewController {
var currentSegueIdentifier : String?
var firstViewController : MHSplashFeaturesVC?
var secondViewController : MHTopSearchesVC?
var thirdViewController : ViewController?
var transitionInProgress : Bool?
static var SegueNameKey: String!
override func viewDidLoad() {
super.viewDidLoad()
if let name = MHContainerVC.SegueNameKey {
self.currentSegueIdentifier = name
performSegueWithIdentifier(name, sender: nil)
MHContainerVC.SegueNameKey = "embedSplashFeaturesVC"
} else {
self.currentSegueIdentifier = "embedSplashFeaturesVC"
performSegueWithIdentifier("embedSplashFeaturesVC", sender: nil)
}
self.transitionInProgress = false
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "embedSplashFeaturesVC" {
self.firstViewController = segue.destinationViewController as? MHSplashFeaturesVC
}
if segue.identifier == "embedTopSearchesVC" {
self.secondViewController = segue.destinationViewController as? MHTopSearchesVC
}
if segue.identifier == "embedBecomeAHelper" {
self.thirdViewController = segue.destinationViewController as? ViewController
}
if segue.identifier == "embedSplashFeaturesVC" {
if self.childViewControllers.count > 0 {
self.swapFromViewController(self.childViewControllers[0], toViewController: self.firstViewController!)
} else {
self.addChildViewController(segue.destinationViewController)
let destView: UIView = (segue.destinationViewController).view
destView.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)
self.view.addSubview(destView)
segue.destinationViewController.didMoveToParentViewController(self)
}
} else if segue.identifier == "embedTopSearchesVC" {
if self.childViewControllers.count > 0 {
self.swapFromViewController(self.childViewControllers[0] , toViewController: self.secondViewController!)
} else {
self.addChildViewController(segue.destinationViewController)
let destView: UIView = (segue.destinationViewController).view
destView.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)
self.view.addSubview(destView)
segue.destinationViewController.didMoveToParentViewController(self)
}
} else if segue.identifier == "embedBecomeAHelper"{
if self.childViewControllers.count > 0 {
self.swapFromViewController(self.childViewControllers[0], toViewController: self.thirdViewController!)
} else {
self.addChildViewController(segue.destinationViewController)
let destView: UIView = (segue.destinationViewController).view
destView.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)
self.view.addSubview(destView)
segue.destinationViewController.didMoveToParentViewController(self)
}
}
}
func swapFromViewController(fromViewController: UIViewController, toViewController: UIViewController) -> Void {
toViewController.view.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)
fromViewController.willMoveToParentViewController(nil)
self.addChildViewController(toViewController)
self.transitionFromViewController(fromViewController, toViewController: toViewController, duration: 0, options: UIViewAnimationOptions.TransitionCrossDissolve, animations: nil, completion: { finished in fromViewController.removeFromParentViewController()
toViewController.didMoveToParentViewController(self)
self.transitionInProgress = false
})
}
}