swift pickview 使用

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编程梦想实现家 2025-01-07 22:57:55

文章标签 swift pickview 使用 ide 状态栏初始化 文章分类 Swift 移动开发

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 style="font-family: Arial, Helvetica, sans-serif;">//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 plain copy

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.   
11. presentViewController(viewController,true) { () -> Void in  
12. //跳转到下个界面  
13. }  
14. dismissViewControllerAnimated(true , completion: { () -> Void in  
15. //回复模式跳转  
16.       
17. })

配置View的layout

[objc] view plain copy

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 plain copy

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.           
14. //控制view的大小UIPopoverController用的比较的广泛  
15. self.preferredContentSize = self.view.bounds.size

跳转相关

[objc] view plain copy

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

旋转相关

[objc] view plain copy

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 plain copy

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. }  
6. //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。  
7. func removeFromParentViewController() {  
8.       
9. }  
10. //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)?) {  
11.       
12. }  
13. //将要移到父Controller  
14. func willMoveToParentViewController(parent: UIViewController?) {  
15.       
16. }  
17. //已经移到父Controller  
18. func didMoveToParentViewController(parent: UIViewController?) {  
19.       
20. }  
21. //触发子ViewController的viewWillAppear  
22. func beginAppearanceTransition(isAppearing: Bool, animated: Bool) {  
23.       
24. }  
25. //触发childd的viewDidAppear这些方法  
26. func endAppearanceTransition() {  
27.       
28. }  
29. //child ViewController的作为状态栏  
30. func childViewControllerForStatusBarStyle() -> UIViewController? {  
31. return nil;  
32. }  
33. //child ViewController的状态栏是否隐藏设置状态栏  
34. func childViewControllerForStatusBarHidden() -> UIViewController? {  
35. return nil;  
36. }

恢复相关

[objc] view plain copy

1. restorationIdentifier 恢复标示  
2. restorationClass      恢复的类  
3. override func encodeRestorableStateWithCoder(coder: NSCoder) {  
4.           
5. }  
6. override func decodeRestorableStateWithCoder(coder: NSCoder) {  
7.           
8. }  
9. applicationFinishedRestoringState() 恢复完成

获得其他的ViewController

[objc] view plain copy

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 plain copy

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 plain copy

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

TabBar相关

[objc] view plain copy