UIViewController详解－－Swift版本

Swift 2020-06-09

UIViewController类详解：

通过Nib文件初始化

[objc] view plain copy
  1. init(nibNamenibName:String?,bundlenibBundle:NSBundle?)
  2. println("nibName=\(self.nibName)")//nibName
  3. println("nibBundle=\(self.nibBundle)")//nibBundle

 
StoryBoard相关 
 

 
 

copy 
   
 
   
 
    
  
 
 
 
 
     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 
  
  1.  overridefuncshouldPerformSegueWithIdentifier(identifier:String?,sender:AnyObject?)->Bool{
    2.  
  
  2.  returntrue
    3.  
  
  3.  }
    4.  
  
  4.  //跳转执行
    5.  
  
  5.  overridefuncprepareForSegue(segue:UIStoryboardSegue,0); background-color:inherit">sender:AnyObject?){
    6.  
  
  6.  print("prepareForSegue")
    7.  
  
  7. //根据UIStoryBoarSegue的Identifier进行跳转
    8.  
  
  8.  overridefuncperformSegueWithIdentifier(identifier:String?,153); font-weight:bold; background-color:inherit">super.performSegueWithIdentifier(identifier!,sender:sender)
    9.  
  
  9.  }
    10.  
 
 

 

copy 
   
 
   
 
    
  
 
 
 
 
    //subViewController是否能够执行UnwindSegue 
  
  1.  overridefunccanPerformUnwindSegueAction(action:Selector,0); background-color:inherit">fromViewController:UIViewController,withSendersender:AnyObject)->Bool{
    2.  
  
  2.  }
    3.  
 
 

 

copy 
   
 
   
 
    
  
 
  
 
    //如果执行UnwindSegue，就返回Segue 
  
  1.  overridefuncsegueForUnwindingToViewController(toViewController:UIViewController,0); background-color:inherit">identifier:String?)->UIStoryboardSegue{
    2.  
  
  2. copy 
   
     
   
     
    
   
  
 
      //能够执行Segue的Controller 
  
    1.  funcviewControllerForUnwindSegueAction(action:Selector,0); background-color:inherit">sender:AnyObject?)->UIViewController?{
      2.  
  
    2.  }
      3.  
 
     
 

     

     

     
Unwindsegue的实现原理请参考相关文章 
 View相关
     

    copy 
   
     
   
     
    
   
  
 
       println("view=\(view)") 
  
    1.  println("viewisloaded=\(isViewLoaded())")
      2.  
  
    2.  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(){
      3.  
  
    3.  super.loadView()<prename="code"class="objc">}//view初始化以后调用
      4.  
 
     
 

    copy 
   
     
   
     
    
  
     
  
 
       overridefuncviewDidLoad(){ 
 
     
 

    copy 
   
     
   
     
    
  
     
  
 
       super.viewDidLoad()<spanstyle="font-family:Arial,sans-serif;">//view将可见的时候调用</span> 
  
    1.  }<prename="code"class="objc">overridefuncviewWillAppear(animated:Bool){
      2.  
  
    2. super.viewWillAppear(animated)
      3.  
  
    3.  
      4.  
  
    4.  //view变得完全可见了以后执行
      5.  
  
    5.  overridefuncviewDidAppear(animated:Bool){
      6.  
  
    6. super.viewDidAppear(animated)
      7.  
  
    7.  }
      8.  
  
    8.  
      9.  
  
    9. //view被遮挡或者隐藏时调用
      10.  
  
    10.  overridefuncviewWilldisappear(animated:Bool){
      11.  
  
    11. super.viewWilldisappear(animated)
      12.  
  
    12. //view被遮挡或者隐藏后调用
      13.  
  
    13.  overridefuncviewDiddisappear(animated:Bool){
      14.  
  
    14. super.viewDiddisappear(animated)
      15.  
  
    15. 模式跳转
       

      copy 
   
       
   
       
    
   
  
 
        //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 
  
      1. //CoverVertical,FlipHorizontal,Crossdissolve,PartialCurl四种类型
        2.  
  
      2.  viewController.modalTransitionStyle=.FlipHorizontal
        3.  
  
      3. //设置模式展示样式,适合于iPad上
        4.  
  
      4.  viewController.modalPresentationStyle=.FullScreen
        5.  
  
      5. //如果展示不是.FullScreen,那么设置是不是捕获statusBar的样式,适合iPad
        6.  
  
      6.  viewController.modalPresentationCapturesstatusBarappearance=//判断在模式跳转时消失是否键盘
        7.  
  
      7.  viewController.disablesAutomaticKeyboarddismissal()
        8.  
  
      8.  presentViewController(viewController,0); background-color:inherit">animated:true){()->Voidin
        9.  
  
      9. //跳转到下个界面
        10.  
  
      10.  dismissViewControllerAnimated(true,0); background-color:inherit">completion:{()->Voidin
        11.  
  
      11. //回复模式跳转
        12.  
  
      12.  })
        13.  
 
       
 
配置View的layout 

       

      copy 
   
       
   
       
    
  
       
  
 
        //layoutSubviews方法调用之前 
  
      1.  overridefuncviewWillLayoutSubviews(){
        2.  
  
      2. super.viewWillLayoutSubviews()
        3.  
  
      3. //layoutSubviews方法调用之后
        4.  
  
      4.  overridefuncviewDidLayoutSubviews(){
        5.  
  
      5. super.viewDidLayoutSubviews()
        6.  
  
      6. class="objc">
        7.  
 
       
 
updateViewConstraints() 

       

      copy 
   
       
   
       
    
  
       
  
 
        //延伸的方向--setwhichsidesofyourviewcanbeextendedtocoverthewholescreen. 
  
      1. ifself.respondsToSelector(Selector("edgesForExtendedLayout")){
        2.  
  
      2. self.edgesForExtendedLayout=.None
        3.  
  
      3. //Scrollview滚动时处于全屏,默认YES
        4.  
  
      4. self.respondsToSelector(Selector("automaticallyAdjustsScrollViewInsets")){
        5.  
  
      5. 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
        6.  
  
      6. self.respondsToSelector(Selector("extendedLayoutIncludesOpaqueBars")){
        7.  
  
      7. self.extendedLayoutIncludesOpaqueBars=false
        8.  
  
      8. //控制view的大小UIPopoverController用的比较的广泛
        9.  
  
      9. self.preferredContentSize=self.view.bounds.size
        10.  
 
       
 

     
跳转相关 

    copy 
   
     
   
     
    
  
     
  
 
       isBeingPresented()//是否在展示 
  
    1.  isBeingdismissed()//是否在dismiss
      2.  
  
    2.  isMovingToParentViewController()
      3.  
  
    3.  isMovingFromParentViewController()
      4.  
 
     
 
旋转相关 

    copy 
   
     
   
     
    
   
  
 
      //是否需要旋转 
  
    1.  overridefuncshouldAutorotate()->Bool{
      2.  
  
    2. //支持的方向
      3.  
  
    3.  overridefuncsupportedInterfaceOrientations()->Int{
      4.  
  
    4. return2
      5.  
  
    5. //优先支持的方向
      6.  
  
    6.  overridefuncpreferredInterfaceOrientationForPresentation()->UIInterfaceOrientation{
      7.  
  
    7. return.Portrait
      8.  
  
    8.  }
      9.  
 
     
 
自定义的ViewController Container 
copy 
   
     
   
     
    
   
  
 
      //https://developer.apple.com/library/ios/featuredarticles/ViewControllerPGforiPhoneOS/CreatingCustomContainerViewControllers/CreatingCustomContainerViewControllers.html 
  
    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.  
  
    2.  funcaddChildViewController(childController:UIViewController){
      3.  
  
    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.  
  
    4.  funcremoveFromParentViewController(){
      5.  
  
    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.  
  
    6. //将要移到父Controller
      7.  
  
    7.  funcwillMovetoParentViewController(parent:UIViewController?){
      8.  
  
    8. //已经移到父Controller
      9.  
  
    9.  funcdidMovetoParentViewController(parent:UIViewController?){
      10.  
  
    10. //触发子ViewController的viewWillAppear
      11.  
  
    11.  funcbeginAppearanceTransition(isAppearing:Bool,0); background-color:inherit">animated:Bool){
      12.  
  
    12. //触发childd的viewDidAppear这些方法
      13.  
  
    13.  funcendAppearanceTransition(){
      14.  
  
    14. //childViewController的作为状态栏
      15.  
  
    15.  funcchildViewControllerForStatusBarStyle()->UIViewController?{
      16.  
  
    16. returnnil;
      17.  
  
    17. //childViewController的状态栏是否隐藏设置状态栏
      18.  
  
    18.  funcchildViewControllerForStatusBarHidden()->UIViewController?{
      19.  
  
    19. 恢复相关 

      copy 
   
       
   
       
    
   
  
 
         restorationIdentifier恢复标示 
  
      1.  restorationClass恢复的类
        2.  
  
      2.  overridefuncencodeRestorableStateWithCoder(coder:NSCoder){
        3.  
  
      3.  overridefuncdecodeRestorableStateWithCoder(coder:NSCoder){
        4.  
  
      4.  applicationFinishedRestoringState()恢复完成
        5.  
 
       
 
获得其他的ViewController 

      copy 
   
       
   
       
    
   
  
 
         println("parentViewController=\(self.parentViewController)")//父类Controller 
  
      1.  println("presentedViewController=\(self.presentedViewController)")//Controller模式跳转到去Controller或父容器
        2.  
  
      2.  println("presentingViewController=\(self.presentingViewController)")//Controller模式跳转来自于Controller或父容器
        3.  
  
      3. //self.navigationController
        4.  
  
      4. //self.tabBarController
        5.  
  
      5. //self.presentationController
        6.  
  
      6. //self.splitViewController
        7.  
  
      7. //self.popoverPresentationController
        8.  
 
       
 

      StatusBar相关 

      copy 
   
       
   
       
    
  
       
  
 
         
  
      1.  viewController.modalPresentationCapturesstatusBarappearance=true
        2.  
  
      2. //设置当前ViewController的StatusBar的样式
        3.  
  
      3.  overridefuncpreferredStatusBarStyle()->UIStatusBarStyle{
        4.  
  
      4. return.Default
        5.  
  
      5. //隐藏还是展示statusBar
        6.  
  
      6.  overridefuncprefeRSStatusBarHidden()->Bool{
        7.  
  
      7. //statusBar的改变动画
        8.  
  
      8.  overridefuncpreferredStatusBarUpdateAnimation()->UIStatusBaranimation{
        9.  
  
      9. return.Fade
        10.  
  
      10. //当statusBar的状态改变后需要调用刷新
        11.  
  
      11. //setNeedsstatusBarappearanceUpdate()
        12.  
 
       
 
Navigation相关 

      copy 
   
       
   
       
    
   
  
 
         overridefuncsettoolbaritems(toolbaritems:[AnyObject]?,0); background-color:inherit">animated:Bool){ 
  
      1. self.navigationItem
        2.  
  
      2. self.editButtonItem()
        3.  
  
      3.  hidesBottomBarWhenPushed=self.toolbaritems=nil
        4.  
 
       
 
TabBar相关 

      copy 
   
       
   
       
    
   
  
 
        self.toolbaritems 
 
       
 
常量 

      copy 
   
       
   
       
    
   
  
 
         UIModalTransitionStyle 
  
      1.  ModalPresentationStyles
        2.  
  
      2.  UIViewControllerHierarchyInconsistencyException
        3.  
  
      3.  UIViewControllerShowDetailTargetDidChangeNotification 
        4.  
 
       



                  
      
                
              
          
            
            
      

      




      

      

      

            
      
              
      
                
      相关文章
      
                
              
      
                效率成吨提升之代码生成器-蓝湖工具神器iOS,Android,Swift,Flutter
              
      
              
      软件简介:蓝湖辅助工具,减少移动端开发中控件属性的复制和粘...
      
            
      
                
              
      
                【Audio音频开发】音频基础知识及PCM技术详解
              
      
              
      现实生活中，我们听到的声音都是时间连续的，我们称为这种信...
      
            
      
                
              
      
                见过仙女蹦迪吗？一起用python做个小仙女代码蹦迪视频
              
      
              
      前言最近在B站上看到一个漂亮的仙女姐姐跳舞视频，循环看了亿...
      
            
      
                
              
      
                【Android App】实战项目之仿抖音的短视频分享App附源码和演示视频 超详细必看
              
      
              
      【Android App】实战项目之仿抖音的短视频分享App（附源码和...
      
            
      
                
              
      
                自定义ava数据集及训练与测试 完整版 时空动作/行为 视频数据集制作 yolov5, deep sort, VIA MMAction, SlowFast
              
      
              
      前言这一篇博客应该是我花时间最多的一次了，从2022年1月底至...
      
            
      
                
              
      
                【视频+源码】登录鉴权的三种方式：token、jwt、session实战分享
              
      
              
      因为我既对接过session、cookie，也对接过JWT，今年因为工作...