//滚动视图 UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(10,10,300,396)]; //设置代理 scrollView.delegate = self; //添加到scrollView上的视图可以称作内容视图 [scrollView addSubview:imageView]; //contentSize 设置内容视图滚动区域的大小,一般contentSize精确设置为内容视图的大小,或者多个内容视图的size和 scrollView.contentSize = CGSizeMake(imageView.frame.size.width,imageView.frame.size.height); //隐藏指示条 scrollView.showsVerticalScrollIndicator = NO; scrollView.showsHorizontalScrollIndicator = NO; //可以禁止边界回弹效果 scrollView.bounces = NO; //设置内容视图的偏移量 (以内容视图左上角的点为坐标原点,scrollView的起始点相对于内容视图原点的偏移量) scrollView.contentOffset = CGPointMake(100,100); scrollView.backgroundColor = [UIColor redColor]; //计算分页的属性 将内容视图的区域分页呈现,每一页的大小为scrollView的size //scrollView.pagingEnabled = YES; //设置最大、最小缩放倍数 (缩放过程中不用理会contentSize的变化) scrollView.maximumZoomScale = 2.0; scrollView.minimumZoomScale = 1.0; #pragma mark - UIScrollViewDelegate //设置内容视图的缩放 - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView{ return scrollView.subviews[0]; } //scrollView滚动时,会时时调用此方法 - (void)scrollViewDidScroll:(UIScrollView *)scrollView{ NSLog(@"did scroll!"); } //开始拖拽scrollView时,调用此方法 - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{ NSLog(@"begin dragging!"); } //停止拖拽scrollView时,调用此方法 - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{ NSLog(@"end dragging!"); } //减速到停止时,触发此方法,(必须有减速的过程) - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{ NSLog(@"减速到停止!"); } //内容区域 @property(nonatomic) CGPoint contentOffset; //偏移量 @property(nonatomic) CGSize contentSize; //弹簧效果 @property(nonatomic) BOOL bounces; //分页效果 @property(nonatomic,getter=isPagingEnabled) BOOL pagingEnabled; //允许滑动视图本身,如果设为no只能通过方法滑动,不能直接用手滑动 @property(nonatomic,getter=isScrollEnabled) BOOL scrollEnabled; //显示水平进度条 @property(nonatomic) BOOL showsHorizontalScrollIndicator; //显示垂直进度条 @property(nonatomic) BOOL showsVerticalScrollIndicator; //放大和缩小的倍数(代理方法中返回的view才能被缩放) @property(nonatomic) CGFloat minimumZoomScale; @property(nonatomic) CGFloat maximumZoomScale; //缩放到某个区域,(具体出现的区域受缩放倍数的影响) - (void)zoomToRect:(CGRect)rect animated:(BOOL)animated; //2种通过代码滑动视图的方法,一个是设置偏移量,一个是滑动到某个区域(常用第一个) - (void)setContentOffset:(CGPoint)contentOffset animated:(BOOL)animated; - (void)scrollRectToVisible:(CGRect)rect animated:(BOOL)animated; /***【UIScrollViewDelegate】*/ //代理方法 //滑动过程中 - (void)scrollViewDidScroll:(UIScrollView *)scrollView; //开始拖动 - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView; //停止拖动 - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate; //开始自由滑动 - (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView; //停止自由滑动 - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView; //允许缩放的视图(一个scrollview中只能有一个可以缩放) - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView; /**【UIPageControl】*/ //小点点 @property(nonatomic) NSInteger numberOfPages; @property(nonatomic) NSInteger currentPage; //从沙盒文件中读取数据 NSArray *mainArr = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"douluodalu" ofType:@"plist"]];