自定义视图切换动画

需要先了解下面的效果对应的代码
宏（系统里面直接可以调用的）
kCATransitionFade 交叉淡化过渡
kCATransitionMoveIn 新视图移到旧视图上面
kCATransitionPush 新视图把旧视图推出去
kCATransitionReveal 将旧视图移开,显示下面的新视图

字符串（也是系统的，但是是字符串，要加“”使用）
pageCurl 向上翻一页
pageUnCurl 向下翻一页
rippleEffect 滴水效果
suckEffect 收缩效果，如一块布被抽走
cube 立方体效果
oglFlip 上下翻转效果
cameraIrisHollowOpen
cameraIrisHollowClose

动画方向
kCATransitionFromRight；
kCATransitionFromLeft(默认值)
kCATransitionFromTop；
kCATransitionFromBottom

转场动画类代码

import UIKit

public enum TransitionType:String{
    ///交叉淡化过度
    case Fade = "fade"
    ///新视图移到就是图上边
    case MoveIn = "moveIn"
    ///新视图把旧视图推出去
    case Push = "push"
    ///将旧视图移开,显示下面的新视图
    case Reveal = "reveal"
    ///向上翻一页 
    case PageCurl = "pageCurl"
    ///向下翻一页
    case PageUnCurl = "pageUnCurl"
    ///滴水效果
    case RippleEffect = "rippleEffect"
    ///收缩效果，如一块布被抽走
    case SuckEffect = "suckEffect"
    ///立方体效果
    case Cube = "cube"
    ///上下翻转效果
    case OglFlip = "oglFlip"
    
}

public enum TransitionDirection:String{
    ///从右边
    case FromRight = "fromRight"
    ///从左边
    case FromLeft = "fromLeft"
    ///从上边
    case FromTop = "fromTop"
    ///从下边
    case FromBottom = "fromBottom"
}

extension UIView{
    /**
     添加转场动画
     - parameter durection:动画时间
     - parameter type:动画类型
     - parameter direction:动画方向
     */
    public func addTransitionAnimation(durection:Double,type: TransitionType,direction: TransitionDirection){
        //创建动画对象
        let animation = CATransition()
        //设置动画时间
        animation.duration = durection
        //设置动画类型
        animation.type = type.rawValue
        //设置动画方向
        animation.subtype = direction.rawValue
        //添加动画
        self.window?.layer.addAnimation(animation, forKey: nil)
    }
}

应用

• 创建window

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?
    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        
        self.window  = UIWindow(frame: UIScreen.mainScreen().bounds)
        let root = FirstViewController()
        window?.rootViewController = root
        
        return true
    }
}

• 创建第一个视图控制器

import UIKit

class FirstViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        self.view.backgroundColor = UIColor.greenColor()
        let btn = UIButton(frame: CGRectMake(100,100,100,50))
        btn.setTitle("下一页", forState: .Normal)
        self.view.addSubview(btn)
        btn.addTarget(self, action: "btnAction", forControlEvents: .TouchUpInside)
        // Do any additional setup after loading the view.
    }

}
extension FirstViewController{
    
    func btnAction(){
        
        //添加转场动画(不使用封装好的方法)
/*
        //a.创建转场动画对象
        let animation = CATransition()
        //b.设置动画转场时间
        animation.duration = 2
        //c.设置动画类型
        //"rippleEffect", kCATransitionFade, kCATransitionMoveIn......
        animation.type = "rippleEffect"
        //d.设置动画方向
        animation.subtype = kCATransitionFromRight
        //e.添加动画
        //可以通过任何已经显示在界面上的视图去拿到当前应用程序window(主窗口)
        self.view.window?.layer.addAnimation(animation, forKey: nil)
*/
        //使用自己封装的方法
        self.view.addTransitionAnimation(0.2, type: TransitionType.Push, direction: TransitionDirection.FromTop)
        
        let second = SecondViewController()
        presentViewController(second, animated: true, completion: nil)
    }
}

• 创建需要跳转的第二个视图控制器

import UIKit

class SecondViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        self.view.backgroundColor = UIColor.orangeColor()
        let btn = UIButton(frame: CGRectMake(100,100,100,50))
        btn.setTitle("上一页", forState: .Normal)
        self.view.addSubview(btn)
        btn.addTarget(self, action: "btnAction", forControlEvents: .TouchUpInside)
    }
}

extension SecondViewController{
    func btnAction() {
        //返回上一页
        self.dismissViewControllerAnimated(true, completion: nil)
    }
}