为UIView视图切换添加动画效果

我们定义了一个动画类来实现视图切换的动画效果，这个类只包含一个类方法，可直接调用，具体代码如下：

头文件：

#import <Foundation/Foundation.h>

@interface ViewAnimation : NSObject

/*============================页面切换的方法==============================
    View1 表示当前页面
    View2 表示目标页面
    VC    两个view所在的viewController
    共有12种动画效果和四个动画方向，这里采用随机挑选动画和方向的方案
======================================================================*/
+(void)TransView1:(UIView*)v1 View2:(UIView*)v2 VC:(UIViewController*)vc;

@end

 体文件：

#import "ViewAnimation.h"
#import <QuartzCore/QuartzCore.h>

#define kDuration 0.4       //  动画效果持续时间(秒)

@implementation ViewAnimation

//  页面切换的方法
+(void)TransView1:(UIView*)v1 View2:(UIView*)v2 VC:(UIViewController *)vc;
{
    CATransition *animation = [CATransition animation];
    animation.delegate = self;
    animation.duration = kDuration;
    animation.timingFunction = UIViewAnimationCurveEaseInOut;
    
    switch (rand()%11) {
        case 1:
            animation.type = kCATransitionFade;
            break;
        case 2:
            animation.type = kCATransitionPush;
            break;
        case 3:
            animation.type = kCATransitionReveal;
            break;
        case 4:
            animation.type = kCATransitionMoveIn;
            break;
        case 5:
            animation.type = @"cube";
            break;
        case 6:
            animation.type = @"suckEffect";
            break;
        case 7:
            animation.type = @"oglFlip";
            break;
        case 8:
            animation.type = @"rippleEffect";
            break;
        case 9:
            animation.type = @"pageCurl";
            break;
        case 10:
            animation.type = @"pageUnCurl";
            break;
        case 11:
            animation.type = @"cameraIrisHollowOpen";
            break;
        case 0:
            animation.type = @"cameraIrisHollowClose";
            break;
        default:
            animation.type = kCATransitionMoveIn;
            break;
    }
    
    switch (rand()%3) {
        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:
            animation.subtype = kCATransitionFromRight;
            break;
    }
    
    [vc.view addSubview:v2];
    
    NSInteger x1 = [[vc.view subviews]indexOfObject:v1];
    NSInteger x2 = [[vc.view subviews]indexOfObject:v2];
    
    [vc.view exchangeSubviewAtIndex:x1 withSubviewAtIndex:x2];
    [[vc.view layer]addAnimation:animation forKey:@"animation"];
}

@end