UIViewController详解－－Swift版本

发布时间：2020-12-14 06:50:58 所属栏目：百科来源：网络整理

导读：UIViewController类详解：通过Nib文件初始化 [objc] view plain copy init(nibName nibName :String?,bundle nibBundle :NSBundle?) println( "nibName=(self.nibName)" ) //nibName println( "nibBundle=(self.nibBundle)" ) //nibBundle StoryBoard相关

UIViewController类详解：

通过Nib文件初始化

[objc] 
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 init(nibNamenibName:String?,bundlenibBundle:NSBundle?)
 println("nibName=(self.nibName)")//nibName
 println("nibBundle=(self.nibBundle)")//nibBundle

StoryBoard相关

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println("storyboard=(self.storyboard)")//storyboard<prename="code"class="objc">//在跳转之前对Segue进行判断,如果返回false则不之行这个Segue的跳转,performSegueWithIdentifier:sender:如果使用了,则这个方法无效

overridefuncshouldPerformSegueWithIdentifier(identifier:String?,sender:AnyObject?)->Bool{
returntrue
}
//跳转执行
overridefuncprepareForSegue(segue:UIStoryboardSegue,0); background-color:inherit">sender:AnyObject?){
print("prepareForSegue")
//根据UIStoryBoarSegue的Identifier进行跳转
overridefuncperformSegueWithIdentifier(identifier:String?,153); font-weight:bold; background-color:inherit">super.performSegueWithIdentifier(identifier!,sender:sender)
}

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overridefunccanPerformUnwindSegueAction(action:Selector,0); background-color:inherit">fromViewController:UIViewController,withSendersender:AnyObject)->Bool{
}

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overridefuncsegueForUnwindingToViewController(toViewController:UIViewController,0); background-color:inherit">identifier:String?)->UIStoryboardSegue{
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1. funcviewControllerForUnwindSegueAction(action:Selector,0); background-color:inherit">sender:AnyObject?)->UIViewController?{
2. }
```
 
Unwindsegue的实现原理请参考相关文章 
 View相关 
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  println("view=(view)") 
   println("viewisloaded=(isViewLoaded())") 
   title="ViewController"<prename="code"class="objc">//如果不是nib文件初始化而来，初始化的时候需要调用这个方法初始化view,此方法不能主动调用,是系统调用的<prename="code"class="objc">overridefuncloadView(){ 
   super.loadView()<prename="code"class="objc">}//view初始化以后调用 
  
 
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  overridefuncviewDidLoad(){ 
  
 
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  super.viewDidLoad()<spanstyle="font-family:Arial,sans-serif;">//view将可见的时候调用</span> 
   }<prename="code"class="objc">overridefuncviewWillAppear(animated:Bool){ 
  super.viewWillAppear(animated) 
    
   //view变得完全可见了以后执行 
   overridefuncviewDidAppear(animated:Bool){ 
  super.viewDidAppear(animated) 
   } 
    
  //view被遮挡或者隐藏时调用 
   overridefuncviewWillDisappear(animated:Bool){ 
  super.viewWillDisappear(animated) 
  //view被遮挡或者隐藏后调用 
   overridefuncviewDidDisappear(animated:Bool){ 
  super.viewDidDisappear(animated) 
  模式跳转 
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 //设置模式跳转的类别,但是必须是目的Controller设置,不能是上级设置 
  //CoverVertical,FlipHorizontal,CrossDissolve,PartialCurl四种类型 
   viewController.modalTransitionStyle=.FlipHorizontal 
  //设置模式展示样式,适合于iPad上 
   viewController.modalPresentationStyle=.FullScreen 
  //如果展示不是.FullScreen,那么设置是不是捕获statusBar的样式,适合iPad 
   viewController.modalPresentationCapturesStatusBarAppearance=//判断在模式跳转时消失是否键盘 
   viewController.disablesAutomaticKeyboardDismissal() 
   presentViewController(viewController,0); background-color:inherit">animated:true){()->Voidin 
  //跳转到下个界面 
   dismissViewControllerAnimated(true,0); background-color:inherit">completion:{()->Voidin 
  //回复模式跳转 
   }) 
  
 
配置View的layout 

 
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 //layoutSubviews方法调用之前 
   overridefuncviewWillLayoutSubviews(){ 
  super.viewWillLayoutSubviews() 
  //layoutSubviews方法调用之后 
   overridefuncviewDidLayoutSubviews(){ 
  super.viewDidLayoutSubviews() 
  class="objc"> 
  
 
updateViewConstraints() 
 
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 //延伸的方向--setwhichsidesofyourviewcanbeextendedtocoverthewholescreen. 
  ifself.respondsToSelector(Selector("edgesForExtendedLayout")){ 
  self.edgesForExtendedLayout=.None 
  //Scrollview滚动时处于全屏,默认YES 
  self.respondsToSelector(Selector("automaticallyAdjustsScrollViewInsets")){ 
  self.automaticallyAdjustsScrollViewInsets=//当statusbar是透明时，是否扩展至StatusBar，默认情况下是NO，且statusbar不是透明的 
  self.respondsToSelector(Selector("extendedLayoutIncludesOpaqueBars")){ 
  self.extendedLayoutIncludesOpaqueBars=false 
  //控制view的大小UIPopoverController用的比较的广泛 
  self.preferredContentSize=self.view.bounds.size 
  
 
```
跳转相关
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1. isBeingDismissed()//是否在dismiss
2. isMovingToParentViewController()
3. isMovingFromParentViewController()
旋转相关
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1. overridefuncshouldAutorotate()->Bool{
2. //支持的方向
3. overridefuncsupportedInterfaceOrientations()->Int{
4. return2
5. //优先支持的方向
6. overridefuncpreferredInterfaceOrientationForPresentation()->UIInterfaceOrientation{
7. return.Portrait
8. }
自定义的ViewController Container copy
1. //addChildVIewController:调用这个方法指明一个视图控制器作为你的子视图。
2. funcaddChildViewController(childController:UIViewController){
3. //调用这个方法将一个视图控制器从你的子视图列表里移除。
4. funcremoveFromParentViewController(){
5. //这是一个使用一个唯一可选的视图替换另一个视图的新方法,或者移动一个子视图到前台来。通过使用这个方法,这个视图控制器的生命周期信息会被正确地发送出去functransitionFromViewController(fromViewController:UIViewController,toViewController:UIViewController,duration:NSTimeInterval,options:UIViewAnimationOptions,animations:()->Void,completion:((Bool)->Void)?){
6. //将要移到父Controller
7. funcwillMoveToParentViewController(parent:UIViewController?){
8. //已经移到父Controller
9. funcdidMoveToParentViewController(parent:UIViewController?){
10. //触发子ViewController的viewWillAppear
11. funcbeginAppearanceTransition(isAppearing:Bool,0); background-color:inherit">animated:Bool){
12. //触发childd的viewDidAppear这些方法
13. funcendAppearanceTransition(){
14. //childViewController的作为状态栏
15. funcchildViewControllerForStatusBarStyle()->UIViewController?{
16. returnnil;
17. //childViewController的状态栏是否隐藏设置状态栏
18. funcchildViewControllerForStatusBarHidden()->UIViewController?{
19. 恢复相关
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  1. restorationClass恢复的类
  2. overridefuncencodeRestorableStateWithCoder(coder:NSCoder){
  3. overridefuncdecodeRestorableStateWithCoder(coder:NSCoder){
  4. applicationFinishedRestoringState()恢复完成
  获得其他的ViewController
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  1. println("presentedViewController=(self.presentedViewController)")//Controller模式跳转到去Controller或父容器
  2. println("presentingViewController=(self.presentingViewController)")//Controller模式跳转来自于Controller或父容器
  3. //self.navigationController
  4. //self.tabBarController
  5. //self.presentationController
  6. //self.splitViewController
  7. //self.popoverPresentationController
  StatusBar相关
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  1. viewController.modalPresentationCapturesStatusBarAppearance=true
  2. //设置当前ViewController的StatusBar的样式
  3. overridefuncpreferredStatusBarStyle()->UIStatusBarStyle{
  4. return.Default
  5. //隐藏还是展示statusBar
  6. overridefuncprefersStatusBarHidden()->Bool{
  7. //statusBar的改变动画
  8. overridefuncpreferredStatusBarUpdateAnimation()->UIStatusBarAnimation{
  9. return.Fade
  10. //当statusBar的状态改变后需要调用刷新
  11. //setNeedsStatusBarAppearanceUpdate()
  Navigation相关
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  1. self.navigationItem
  2. self.editButtonItem()
  3. hidesBottomBarWhenPushed=self.toolbarItems=nil
  TabBar相关
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  常量
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  1. ModalPresentationStyles
  2. UIViewControllerHierarchyInconsistencyException
  3. UIViewControllerShowDetailTargetDidChangeNotification
  （编辑：李大同）
  
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