#import "ViewController.h"
@interface ViewController ()
{
UIImageView *imageview2;
UIScrollView *sv;
UIPageControl *page;
}
@end
@implementation ViewController
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
CGPoint newOff=scrollView.contentOffset;
page.currentPage=newOff.x/self.view.frame.size.width+0.5;
// [sv addSubview:imageview2];
}
- (void)viewDidLoad {
sv=[[UIScrollView alloc]initWithFrame:self.view.frame];
sv.backgroundColor=[UIColor greenColor];
sv.pagingEnabled=YES;
sv.delegate=self;
//UIScrollViewDelegate遵守了这个协议，然后实例化UIScrollview的对象
NSString *str[]={@"D.jpg",@"oo.jpg",@"ll.jpg",@"u.jpg",@"liu.jpg"};
page=[[UIPageControl alloc]initWithFrame:CGRectMake(50, self.view.frame.size.height-200, 200, 40)];
[page addTarget:self action:@selector(changeSV) forControlEvents:UIControlEventValueChanged];
page.numberOfPages=5;
page.currentPage=0;
page.currentPageIndicatorTintColor=[UIColor yellowColor];
page.pageIndicatorTintColor=[UIColor greenColor];
for (int i=0; i<5; i++)
{
UIImage *im=[UIImage imageNamed:[NSString stringWithString:str[i]]];
UIImageView *iv=[[UIImageView alloc]initWithImage:im];
iv.frame=CGRectMake(i*self.view.frame.size.width, 0, self.view.frame.size.width, self.view.frame.size.height);
if (i==3)
{
UITapGestureRecognizer *p=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(go )];
[iv addGestureRecognizer:p ];
iv.userInteractionEnabled=YES;
}
[sv addSubview:iv];
}
CGSize sz1=CGSizeMake(self.view.frame.size.width*5, self.view.frame.size.height);
sv.contentSize=sz1;
[self.view addSubview:sv];
[self.view addSubview:page];
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
-(void)changeSV
{
sv.contentOffset=CGPointMake(page.currentPage*self.view.frame.size.width, 0);
}
-(void)go
{
// [sv removeFromSuperview];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end