快捷導(dǎo)航

iOS swift實(shí)現(xiàn)轉(zhuǎn)場(chǎng)動(dòng)畫(huà)的方法示例

更新時(shí)間：2017年07月14日 09:53:29 作者：awyys

在平時(shí)的iOS開(kāi)發(fā)中，我們進(jìn)行界面跳轉(zhuǎn)時(shí)一般都是采用系統(tǒng)默認(rèn)的轉(zhuǎn)場(chǎng)動(dòng)畫(huà)，而下面這篇文章主要給大家介紹了關(guān)于iOS利用swift實(shí)現(xiàn)轉(zhuǎn)場(chǎng)動(dòng)畫(huà)的方法示例，文中通過(guò)示例代碼介紹的非常詳細(xì)，需要的朋友可以參考借鑒，下面來(lái)一起看看吧。

轉(zhuǎn)場(chǎng)動(dòng)畫(huà)介紹

轉(zhuǎn)場(chǎng)動(dòng)畫(huà)在我們?nèi)粘ｉ_(kāi)發(fā)中是經(jīng)常遇到的，所謂轉(zhuǎn)場(chǎng)動(dòng)畫(huà)，就是一個(gè)控制器的view切到另一個(gè)控制器的view上過(guò)程中過(guò)的動(dòng)畫(huà)效果。本例子是實(shí)現(xiàn)了在導(dǎo)航控制器的titleView邊上慢慢彈出一個(gè)控制器。下面話(huà)不多說(shuō)，來(lái)一起看看詳細(xì)的介紹：

效果圖：

專(zhuān)場(chǎng)前

專(zhuān)場(chǎng)后

示例代碼

首先自定義一個(gè)animator類(lèi)。在需要轉(zhuǎn)場(chǎng)的控制器內(nèi)，設(shè)置代理

 //需要設(shè)置轉(zhuǎn)場(chǎng)動(dòng)畫(huà)的控制器titleViewVc.transitioningDelegate = aniamator//這里的animator是animator的實(shí)例

下面是animator類(lèi)中的代碼

class animatorTool: NSObject {
 lazy var isPresent = false
 var callBack : ((isPresented:Bool)->())?//向外界傳遞動(dòng)畫(huà)是否正在顯示

 init(callBack : ((isPresented:Bool)->())) {
  self.callBack = callBack
 }//自定義構(gòu)造方法，便于給閉包賦值
}
extension animatorTool:UIViewControllerTransitioningDelegate{
 func presentationControllerForPresentedViewController(presented: UIViewController, presentingViewController presenting: UIViewController, sourceViewController source: UIViewController) -> UIPresentationController? {
  return AWYPresentationController(presentedViewController: presented, presentingViewController: presenting)//AWYPresentationController是自定義繼承自UIPresentationController的類(lèi)，是為了設(shè)置modal出來(lái)的vc的view的大小
 }
 func animationControllerForPresentedController(presented: UIViewController, presentingController presenting: UIViewController, sourceController source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
  isPresent = true
  self.callBack!(isPresented: isPresent)
  return self
 }

 func animationControllerForDismissedController(dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
  isPresent = false
  self.callBack!(isPresented: isPresent)
  return self
 }
}

extension animatorTool:UIViewControllerAnimatedTransitioning{
 func transitionDuration(transitionContext: UIViewControllerContextTransitioning?) -> NSTimeInterval {
  return 0.5//動(dòng)畫(huà)時(shí)長(zhǎng)
 }
 func animateTransition(transitionContext: UIViewControllerContextTransitioning) {
  isPresent ?animatetransitionForPresented(transitionContext) : animatetransitionForDismissed(transitionContext)
 }

 func animatetransitionForPresented(transitonContext:UIViewControllerContextTransitioning){
  let aimView = transitonContext.viewForKey(UITransitionContextToViewKey)!
  transitonContext.containerView()?.addSubview(aimView)

  aimView.transform = CGAffineTransformMakeScale(1.0, 0.0)
  UIView.animateWithDuration(transitionDuration(transitonContext), animations: {
   aimView.layer.anchorPoint = CGPointMake(0.5, 0.0)
   aimView.transform = CGAffineTransformIdentity
  }) { (_) in
   transitonContext.completeTransition(true)
  }
 }

 func animatetransitionForDismissed(transitonContext:UIViewControllerContextTransitioning){
  let aimView = transitonContext.viewForKey(UITransitionContextFromViewKey)!
  transitonContext.containerView()?.addSubview(aimView)


  UIView.animateWithDuration(transitionDuration(transitonContext), animations: {
   aimView.layer.anchorPoint = CGPointMake(0.5, 0.0)
   aimView.transform = CGAffineTransformMakeScale(1.0, 0.001)//留一點(diǎn)值，這樣會(huì)有動(dòng)畫(huà)效果
  }) { (_) in
   transitonContext.completeTransition(true)
  }

 }


}

總結(jié)

以上就是這篇文章的全部?jī)?nèi)容了，希望本文的內(nèi)容對(duì)大家的學(xué)習(xí)或者工作能帶來(lái)一定的幫助，如果有疑問(wèn)大家可以留言交流，謝謝大家對(duì)腳本之家的支持。

您可能感興趣的文章: