用UIScrollView，UIPageControl来实现滚动视图。

@interface ViewController : UIViewController<UIScrollViewDelegate>

@property (nonatomic ,strong) NSMutableArray *array;

@property (nonatomic ,strong) UIImageView *imageView1;

@property (nonatomic ,strong) UIImageView *imgeView2;

@property (nonatomic ,strong) UIImageView *imgeView3;

@property (nonatomic ,strong) UIScrollView *myscroll;

@property (nonatomic ,strong) UIPageControl *mypage;

@property (nonatomic ,assign) int currentPage;

@end

#import "ViewController.h"

#define HEIGHT 200

#define WIDTH 300

//#define WIDTH1

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"1.jpg"]];

self.array = [[NSMutableArray alloc ] init];

for (int i = 0; i<6; i++) {

UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"%d.jpg",i]];

[self.array addObject:image];

}

self.myscroll = [[UIScrollView alloc] initWithFrame:CGRectMake(WIDTH/4 , HEIGHT/3, WIDTH, HEIGHT)];

self.myscroll.backgroundColor=[UIColor grayColor];

self.myscroll.contentSize = CGSizeMake(WIDTH*3, 0);

[self.view addSubview:self.myscroll];

self.myscroll.delegate = self;

//隐藏滚动条

self.myscroll.showsHorizontalScrollIndicator = NO;

//设置分页

self.myscroll.pagingEnabled = YES;

self.mypage = [[UIPageControl alloc] initWithFrame:CGRectMake(WIDTH-140, HEIGHT+40, 120, 30)];

self.mypage.backgroundColor = [UIColor clearColor];

//页数可以写成数组的个数

self.mypage.numberOfPages = self.array.count;

self.mypage.currentPage = 0;

self.mypage.currentPageIndicatorTintColor = [UIColor greenColor];

self.mypage.pageIndicatorTintColor = [UIColor blueColor];

[self.view addSubview:self.mypage];

self.imageView1 = [[UIImageView alloc] init];

self.imgeView2 = [[UIImageView alloc] init];

self.imgeView3 = [[UIImageView alloc] init];

self.currentPage = 0;

[self reloadImage];

}

-(void)reloadImage{

//第一种情况,当前页在第一张图片的时候

if (self.currentPage == 0)

{

self.imageView1.image = [self.array lastObject];

self.imgeView2.image = [self.array objectAtIndex:self.currentPage];

self.imgeView3.image = [self.array objectAtIndex:self.currentPage+1];

}

//当前页在最后一张图片的时候

else if (self.currentPage == self.array.count-1)

{ self.imageView1.image = [self.array objectAtIndex:self.currentPage-1 ];

self.imgeView2.image = [self.array objectAtIndex:self.currentPage];

self.imgeView3.image = [self.array firstObject];

}

else

{ self.imageView1.image = [self.array objectAtIndex:self.currentPage-1];

self.imgeView2.image = [self.array objectAtIndex:self.currentPage];

self.imgeView3.image = [self.array objectAtIndex:self.currentPage+1];

}

self.imageView1.frame = CGRectMake(0, 0, WIDTH, HEIGHT);

self.imgeView2.frame = CGRectMake(WIDTH, 0, WIDTH, HEIGHT);

self.imgeView3.frame = CGRectMake(WIDTH*2, 0, WIDTH, HEIGHT);

[self.myscroll addSubview:self.imageView1];

[self.myscroll addSubview:self.imgeView2];

[self.myscroll addSubview:self.imgeView3];

}

-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{

float x = self.myscroll.contentOffset.x;

//向左滑动

if (x<=0)

{ if(self.currentPage == 0)

{

self.currentPage = (int)self.array.count - 1;

}

else

{

self.currentPage--;

}

}

//向右滑动

if(x>=WIDTH*2)

{ if(self.currentPage ==self.array.count-1)

{

self.currentPage = 0;

}

else

{

self.currentPage++;

}

}

self.mypage.currentPage = self.currentPage;

[self reloadImage];

}