#import <UIKit/UIKit.h>@interface RootViewController : UIViewController{    NSTimer *timer;    UIImageView *imageView1;    UIImageView *imageView2;    UIImageView *imageView3;    UIView * view1;    UIView * view2;    UIView * view3;}@end

- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view.        //初始化背景图    [self initBackgroundView];   }#pragma -mark -funcitons-(void)initBackgroundView{    //第一张图片    view1 = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 560)];    [self.view addSubview:view1];        imageView1 = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 420, 560)];    imageView1.image = [UIImage imageNamed:@"guidex1.png"];    [view1 addSubview:imageView1];        //第二张图片    view2 = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 560)];    [self.view addSubview:view2];        imageView2 = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 420, 560)];    imageView2.image = [UIImage imageNamed:@"guidex2.png"];    [view2 addSubview:imageView2];        //第三张图片    view3 = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 560)];    [self.view addSubview:view3];        imageView3 = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 520, 660)];    imageView3.image = [UIImage imageNamed:@"guidex0.png"];    [view3 addSubview:imageView3];        //开启动画事件    timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(changeView) userInfo:nil repeats:NO];}-(void)change{    [UIView beginAnimations:nil context:nil];    [UIView setAnimationDuration:11.0];    imageView1.frame = CGRectMake(0, 0, 320, 460);    [UIView commitAnimations];}-(void)change1{    [UIView beginAnimations:nil context:nil];    [UIView setAnimationDuration:11.0];    imageView2.frame = CGRectMake(0, 0, 320, 460);    [UIView commitAnimations];}-(void)change2{    [UIView beginAnimations:nil context:nil];    [UIView setAnimationDuration:11.0];    imageView3.frame = CGRectMake(0, 0, 320, 460);    [UIView commitAnimations];}-(void)changeView{    imageView1.frame = CGRectMake(0, 0, 520, 660);    [self change2];    CATransition * transition = [CATransition animation];    transition.duration = 2.0;//间隔时间    transition.timingFunction = UIViewAnimationCurveEaseInOut;//减缓动画    transition.type = kCATransitionFade;//各种效果    transition.subtype = kCATransitionFromRight;    transition.delegate = self;//代理，自带方法，动画的代理都不用协议    [self.view.layer addAnimation:transition forKey:nil];    [self.view exchangeSubviewAtIndex:0 withSubviewAtIndex:1];    timer = [NSTimer scheduledTimerWithTimeInterval:11.0 target:self selector:@selector(changeView1) userInfo:nil repeats:NO];}-(void)changeView1{    imageView2.frame = CGRectMake(0, 0, 520, 660);    [self change];    CATransition * transition = [CATransition animation];    transition.duration = 2.0;//间隔时间    transition.timingFunction = UIViewAnimationCurveEaseInOut;//减缓动画    transition.type = kCATransitionFade;//各种效果    transition.subtype = kCATransitionFromRight;    transition.delegate = self;//代理，自带方法，动画的代理都不用协议    [self.view.layer addAnimation:transition forKey:nil];    [self.view exchangeSubviewAtIndex:1 withSubviewAtIndex:2];    timer = [NSTimer scheduledTimerWithTimeInterval:11.0 target:self selector:@selector(changeView2) userInfo:nil repeats:NO];}-(void)changeView2{    imageView3.frame = CGRectMake(0, 0, 520, 660);    [self change1];    CATransition * transition = [CATransition animation];    transition.duration = 2.0;//间隔时间    transition.timingFunction = UIViewAnimationCurveEaseInOut;//减缓动画    transition.type = kCATransitionFade;//各种效果    transition.subtype = kCATransitionFromRight;    transition.delegate = self;//代理，自带方法，动画的代理都不用协议    [self.view.layer addAnimation:transition forKey:nil];    [self.view exchangeSubviewAtIndex:2 withSubviewAtIndex:0];    timer = [NSTimer scheduledTimerWithTimeInterval:11.0 target:self selector:@selector(changeView) userInfo:nil repeats:NO];}