@interface ViewController ()<UIScrollViewDelegate>
{
NSInteger page;
}
@end
@implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
UIScrollView *sv=[[UIScrollView alloc]initWithFrame:CGRectMake(0, 0, 320, 568)];
sv.backgroundColor=[UIColor cyanColor];
sv.contentSize=CGSizeMake(320*6, 568);
[self.view addSubview:sv];
for (int i=0; i<6; i++)
{
if (i==0) {
UIImageView *iv=[[UIImageView alloc]initWithFrame:CGRectMake(320*i, 0, 320, 568)];
iv.image=[UIImage imageNamed:[NSString stringWithFormat:@"2_4.jpg"]];
[sv addSubview:iv];
iv.userInteractionEnabled=YES;
}else if (i==5)
{
UIImageView *iv=[[UIImageView alloc]initWithFrame:CGRectMake(320*i, 0, 320, 568)];
iv.image=[UIImage imageNamed:[NSString stringWithFormat:@"2_1.jpg"]];
[sv addSubview:iv];
}else {
UIImageView *iv=[[UIImageView alloc]initWithFrame:CGRectMake(320*i, 0, 320, 568)];
iv.image=[UIImage imageNamed:[NSString stringWithFormat:@"2_%d.jpg",i]];
[sv addSubview:iv];
}
}
sv.pagingEnabled=YES;
sv.delegate=self;
}
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
page=scrollView.contentOffset.x/320;
if (!page) {
[scrollView setContentOffset:CGPointMake(320*4, 0)];
}
if (page==5) {
[scrollView setContentOffset:CGPointMake(320, 0)];
}
}