IOS UIScrollView学习

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申明myScrollView

@interface IKEDViewController ()<UIScrollViewDelegate>{    UIImageView *myImageView;    UIScrollView *myScrollView;}

创建3个UIImageView，并且分别有图

    UIImage *iPhone = [UIImage imageNamed:@"iPhone.png"];    UIImage *iPad = [UIImage imageNamed:@"iPad.png"];    UIImage *macBookAir = [UIImage imageNamed:@"MacBookAir.png"];

3.初始化UIScrollView

 CGRect scrollViewRect = self.view.bounds;        myScrollView = [[UIScrollView alloc] initWithFrame:scrollViewRect];    myScrollView.pagingEnabled = YES;        myScrollView.contentSize = CGSizeMake(scrollViewRect.size.width * 3, scrollViewRect.size.height);        [self.view addSubview:myScrollView];

4.设置添加资源

    UIImageView *iphoneImgView = [[UIImageView alloc]initWithFrame:imgRect];    iphoneImgView.image = iPhone;     iphoneImgView.contentMode = UIViewContentModeScaleAspectFit;    [myScrollView addSubview:iphoneImgView];                imgRect.origin.x+=imgRect.size.width;    UIImageView *ipad = [[UIImageView alloc]initWithFrame:imgRect];     ipad.contentMode = UIViewContentModeScaleAspectFit;    ipad.image = iPad;    [myScrollView addSubview:ipad];        imgRect.origin.x+=imgRect.size.width;    UIImageView *macBook = [[UIImageView alloc]initWithFrame:imgRect];    macBook.contentMode = UIViewContentModeScaleAspectFit;    macBook.image = macBookAir;    [myScrollView addSubview:macBook];

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