UIScrollView

 

 

contentSize     //定义内容区域大小，决定是否能够滚动

contentOffset     //屏幕左上角距离坐标原点的偏移量
scrollsToTop     //滑动到顶部（点状态的时候）
pagingEnabled     //是否整屏翻动
bounces     //边界是否回弹

 

 //1.创建一个scroll对象

    UIScrollView *scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 100, WHIDTH , HEIGTH-300)];

    //2.设置画卷大小

    scroll.contentSize = CGSizeMake(375*11, 30);//设置画卷大小，如果左右滑动宽必须大于屏幕的宽，上下滑动高必须大于屏的高度

    //3.设置画卷属性

    scroll.pagingEnabled = YES;//设置整页滑动

    scroll.scrollEnabled = YES;//是否允许滑动

    scroll.backgroundColor = [UIColor whiteColor];//设置画卷背景色

    scroll.bounces = YES;//设置回弹效果

    //scroll.contentOffset = CGPointMake(200, 40);//设置画卷的初始位置

    scroll.showsHorizontalScrollIndicator = YES;//是否显示水平滚动条

    scroll.showsVerticalScrollIndicator = NO;//是否显示垂直滚动条

    scroll.scrollsToTop = YES;//点击状态栏时，是否允许画卷滚动到顶部

    scroll.delegate = self;//设置代理

    //    scroll.zooming = YES;//是否允许缩放为只读装填

    //    scroll.zoomScale = 2;//

    [self.view addSubview: scroll];

    //添加图片

    for(int i=0;i<11;i++)

    {

        UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(WHIDTH*i, 0, WHIDTH,375)];

        imageView.image = [UIImage imageNamed:[NSString stringWithFormat:@"%d.jpg",i+1]];

        imageView.contentMode = UIViewContentModeScaleAspectFit;

        [scroll addSubview:imageView];

    }

    page = [[UIPageControlalloc] initWithFrame:CGRectMake(87, 500, 200, 40)];

    page.numberOfPages = 11;//设置页数

    page.currentPage = 0;//设置当前页

    page.currentPageIndicatorTintColor = [UIColorredColor];//设置点的颜色

    page.defersCurrentPageDisplay =NO;//手动移动页码

    page.pageIndicatorTintColor = [UIColorblackColor];//设置非点的颜色

    //    page.backgroundColor = [UIColor grayColor];

    [self.view addSubview:page];

    

    // Do any additional setup after loading the view, typically from a nib.

}//事件处理

    -(void)scrollViewDidScroll:(UIScrollView *)scrollView//

    {

        page.currentPage = scrollView.contentOffset.x/375;

 

    }