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Swift - UIViewController

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UIViewController类详解：

通过Nib文件初始化

init(nibName nibName: String?, bundle nibBundle: NSBundle?)  
println("nibName = \(self.nibName)")                                    //nibName  
println("nibBundle = \(self.nibBundle)")                                //nibBundle

StoryBoard相关

println("storyboard = \(self.storyboard)")                              //storyboard<pre name="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  
override func shouldPerformSegueWithIdentifier(identifier: String?, sender: AnyObject?) -> Bool {  
    return true  
}  
//跳转执行  
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {  
   print("prepareForSegue")  
}  
//根据UIStoryBoarSegue的Identifier进行跳转  
override func performSegueWithIdentifier(identifier: String?, sender: AnyObject?) {  
    super.performSegueWithIdentifier(identifier!, sender: sender)  
}  
//subViewController是否能够执行Unwind Segue  
override func canPerformUnwindSegueAction(action: Selector, fromViewController: UIViewController, withSender sender: AnyObject) -> Bool {    
}  
//如果执行Unwind Segue，就返回Segue  
override func segueForUnwindingToViewController(toViewController: UIViewController, fromViewController: UIViewController, identifier: String?) -> UIStoryboardSegue {  
}  
//能够执行Segue的Controller  
func viewControllerForUnwindSegueAction(action: Selector, fromViewController: UIViewController, withSender sender: AnyObject?) -> UIViewController? {  
}

Unwindsegue的实现原理请参考相关文章

View相关

println("view = \(view)")  
println("view is loaded = \(isViewLoaded())")  
title = "ViewController"<pre name="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<pre name="code" class="objc">override func loadView() {   
    super.loadView()<pre name="code" class="objc">}//view初始化以后调用  
override func viewDidLoad() {   
 
    super.viewDidLoad()   <span >//view将可见的时候调用</span>  
} <pre name="code" class="objc">override func viewWillAppear(animated: Bool) {  
    super.viewWillAppear(animated)  
}  
      
// view变得完全可见了以后执行  
override func viewDidAppear(animated: Bool) {  
    super.viewDidAppear(animated)  
}  
      
//view被遮挡或者隐藏时调用  
override func viewWillDisappear(animated: Bool) {  
    super.viewWillDisappear(animated)  
}  
      
//view被遮挡或者隐藏后调用  
override func viewDidDisappear(animated: Bool) {  
    super.viewDidDisappear(animated)  
}

模式跳转

[objc]view plaincopy

  1. //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
  2. //CoverVertical, FlipHorizontal, CrossDissolve, PartialCurl四种类型
  3. viewController.modalTransitionStyle = .FlipHorizontal
  4. //设置模式展示样式,适合于iPad上
  5. viewController.modalPresentationStyle = .FullScreen
  6. //如果展示不是.FullScreen, 那么设置是不是捕获statusBar的样式,适合iPad
  7. viewController.modalPresentationCapturesStatusBarAppearance = true
  8. //判断在模式跳转时消失是否键盘
  9. viewController.disablesAutomaticKeyboardDismissal()
  10. presentViewController(viewController, animated: true) { () -> Void in
  11. //跳转到下个界面
  12. }
  13. dismissViewControllerAnimated(true , completion: { () -> Void in
  14. //回复模式跳转
  15. })

配置View的layout

[objc]view plaincopy

  1. // layoutSubviews方法调用之前
  2. override func viewWillLayoutSubviews() {
  3. super.viewWillLayoutSubviews()
  4. }
  5. // layoutSubviews方法调用之后
  6. override func viewDidLayoutSubviews() {
  7. super.viewDidLayoutSubviews()
  8. }<pre name="code" class="objc">

updateViewConstraints()

[objc]view plaincopy

  1. //延伸的方向--set which sides of your view can be extended to cover the whole screen.
  2. if self.respondsToSelector(Selector("edgesForExtendedLayout")) {
  3. self.edgesForExtendedLayout = .None
  4. }
  5. //Scrollview滚动时处于全屏,默认YES
  6. if self.respondsToSelector(Selector("automaticallyAdjustsScrollViewInsets")) {
  7. self.automaticallyAdjustsScrollViewInsets = true
  8. }
  9. //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
  10. if self.respondsToSelector(Selector("extendedLayoutIncludesOpaqueBars")) {
  11. self.extendedLayoutIncludesOpaqueBars = false
  12. }
  13. //控制view的大小UIPopoverController用的比较的广泛
  14. self.preferredContentSize = self.view.bounds.size

跳转相关

[objc]view plaincopy

  1. isBeingPresented() //是否在展示
  2. isBeingDismissed() //是否在dismiss
  3. isMovingToParentViewController()
  4. isMovingFromParentViewController()

旋转相关

[objc]view plaincopy

  1. //是否需要旋转
  2. override func shouldAutorotate() -> Bool {
  3. return true
  4. }
  5. //支持的方向
  6. override func supportedInterfaceOrientations() -> Int {
  7. return 2
  8. }
  9. //优先支持的方向
  10. override func preferredInterfaceOrientationForPresentation() -> UIInterfaceOrientation {
  11. return .Portrait
  12. }

自定义的ViewController Container

[objc]view plaincopy

  1. //https://developer.apple.com/library/ios/featuredarticles/ViewControllerPGforiPhoneOS/CreatingCustomContainerViewControllers/CreatingCustomContainerViewControllers.html
  2. //addChildVIewController:调用这个方法指明一个视图控制器作为你的子视图。
  3. func addChildViewController(childController: UIViewController) {
  4. }
  5. //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。
  6. func removeFromParentViewController() {
  7. }
  8. //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 func transitionFromViewController(fromViewController: UIViewController, toViewController: UIViewController, duration: NSTimeInterval, options: UIViewAnimationOptions, animations: () -> Void, completion: ((Bool) -> Void)?) {
  9. }
  10. //将要移到父Controller
  11. func willMoveToParentViewController(parent: UIViewController?) {
  12. }
  13. //已经移到父Controller
  14. func didMoveToParentViewController(parent: UIViewController?) {
  15. }
  16. //触发子ViewController的viewWillAppear
  17. func beginAppearanceTransition(isAppearing: Bool, animated: Bool) {
  18. }
  19. //触发childd的viewDidAppear这些方法
  20. func endAppearanceTransition() {
  21. }
  22. //child ViewController的作为状态栏
  23. func childViewControllerForStatusBarStyle() -> UIViewController? {
  24. return nil;
  25. }
  26. //child ViewController的状态栏是否隐藏设置状态栏
  27. func childViewControllerForStatusBarHidden() -> UIViewController? {
  28. return nil;
  29. }

恢复相关

[objc]view plaincopy

  1. restorationIdentifier 恢复标示
  2. restorationClass 恢复的类
  3. override func encodeRestorableStateWithCoder(coder: NSCoder) {
  4. }
  5. override func decodeRestorableStateWithCoder(coder: NSCoder) {
  6. }
  7. applicationFinishedRestoringState() 恢复完成

获得其他的ViewController

[objc]view plaincopy

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

StatusBar相关

[objc]view plaincopy

  1. //如果展示不是.FullScreen, 那么设置是不是捕获statusBar的样式,适合iPad
  2. viewController.modalPresentationCapturesStatusBarAppearance = true
  3. //child ViewController的作为状态栏
  4. func childViewControllerForStatusBarStyle() -> UIViewController? {
  5. return nil;
  6. }
  7. //child ViewController的状态栏是否隐藏设置状态栏
  8. func childViewControllerForStatusBarHidden() -> UIViewController? {
  9. return nil;
  10. }
  11. //设置当前ViewController的StatusBar的样式
  12. override func preferredStatusBarStyle() -> UIStatusBarStyle {
  13. return .Default
  14. }
  15. //隐藏还是展示statusBar
  16. override func prefersStatusBarHidden() -> Bool {
  17. return true
  18. }
  19. //statusBar的改变动画
  20. override func preferredStatusBarUpdateAnimation() -> UIStatusBarAnimation {
  21. return .Fade
  22. }
  23. //当statusBar的状态改变后需要调用刷新
  24. // setNeedsStatusBarAppearanceUpdate()

Navigation相关

[objc]view plaincopy

  1. override func setToolbarItems(toolbarItems: [AnyObject]?, animated: Bool) {
  2. }
  3. self.navigationItem
  4. self.editButtonItem()
  5. hidesBottomBarWhenPushed = true
  6. self.toolbarItems = nil

TabBar相关

[objc]view plaincopy

  1. self.toolbarItems

常量

[objc]view plaincopy

    1. UIModalTransitionStyle
    2. Modal Presentation Styles
    3. UIViewControllerHierarchyInconsistencyException
    4. UIViewControllerShowDetailTargetDidChangeNotification

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