Iphone页面跳转动画的封装

在项目中我希望页面跳转有不同的动画效果，我是一个喜欢将公用代码提交出来写成工具类的人，这个当然也不会放过，好了，看代码：

全局变量:

typedef enum{
    fade,
    moveIn,
    push,
    reveal,
    cube,
    suckEffect,
    oglFlip,
    rippleEffect,
    pageCurl,
    pageUnCurl,
    cameraIrisHollowOpen,
    cameraIrisHollowClose
}myAnimationType;

MyAnimationUtil.h

#import <Foundation/Foundation.h>
#import <QuartzCore/QuartzCore.h>
@interface MyAnimationUtil : NSObject
+(CATransition *)getAnimation:(myAnimationType)mytag;
@end

MyAnimationUtil.m

#import "MyAnimationUtil.h"

@implementation MyAnimationUtil


//获得动画
+(CATransition *)getAnimation:(myAnimationType)mytag{
    
    CATransition *animation = [CATransition animation];
    animation.duration = 0.7;
    animation.timingFunction = UIViewAnimationCurveEaseInOut;
    
    switch (mytag) {
        case fade:
            animation.type = kCATransitionFade;
            break;
        case push:
            animation.type = kCATransitionPush;
            break;
        case reveal:
            animation.type = kCATransitionReveal;
            break;
        case moveIn:
            animation.type = kCATransitionMoveIn;
            break;
        case cube:
            animation.type = @"cube";
            break;
        case suckEffect:
            animation.type = @"suckEffect";
            break;
        case oglFlip:
            animation.type = @"oglFlip";
            break;
        case rippleEffect:
            animation.type = @"rippleEffect";
            break;
        case pageCurl:
            animation.type = @"pageCurl";
            break;
        case pageUnCurl:
            animation.type = @"pageUnCurl";
            break;
        case cameraIrisHollowOpen:
            animation.type = @"cameraIrisHollowOpen";
            break;
        case cameraIrisHollowClose:
            animation.type = @"cameraIrisHollowClose";
            break;
        default:
            break;
    }
    
    int i = (int)rand()%4;
    switch (i) {
            
        case 0:
            animation.subtype = kCATransitionFromLeft;
            break;
        case 1:
            animation.subtype = kCATransitionFromBottom;
            break;
        case 2:
            animation.subtype = kCATransitionFromRight;
            break;
        case 3:
            animation.subtype = kCATransitionFromTop;
            break;
        default:
            break;
    }
    return animation;
}

@end

调用的代码:

CATransition* annim = [MyAnimationUtil getAnimation:cube];
    [[[UIApplication sharedApplication].delegate  window].layer addAnimation:annim forKey:nil];