关于UIScrollerView的基本用法和代理

- (void)viewDidLoad

{ 　　[super viewDidLoad];

　　  scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];

　　 scrollView.backgroundColor = [UIColor redColor];

　　// 是否支持滑动最顶端 // scrollView.scrollsToTop = NO;

　　scrollView.delegate = self;

　　// 设置内容大小

　　scrollView.contentSize = CGSizeMake(320, 460*10);

　　// 是否反弹 // scrollView.bounces = NO;

　　// 是否分页 // scrollView.pagingEnabled = YES;

　　// 是否滚动 // scrollView.scrollEnabled = NO;　　

　　 // scrollView.showsHorizontalScrollIndicator = NO;

　　 // 设置indicator风格

　　// scrollView.indicatorStyle = UIScrollViewIndicatorStyleWhite;

　　// 设置内容的边缘和Indicators边缘

　　// scrollView.contentInset = UIEdgeInsetsMake(0, 50, 50, 0);

　　// scrollView.scrollIndicatorInsets = UIEdgeInsetsMake(0, 50, 0, 0);

　　// 提示用户,Indicators flash [scrollView flashScrollIndicators];

　　 // 是否同时运动,lock

　　scrollView.directionalLockEnabled = YES;

　　[self.view addSubview:scrollView];

　　 UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 200, 320, 40)];

　　label.backgroundColor = [UIColor yellowColor]; label.text = @"学习scrolleview";

　　[scrollView addSubview:label];

　　 }

#pragma mark -- delegate

　　 // 返回一个放大或者缩小的视图

　　 - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView { }

　　// 开始放大或者缩小 - (void)scrollViewWillBeginZooming:(UIScrollView *)scrollView withView: (UIView *)view { }

　　// 缩放结束时 - (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(float)scale { }

　　// 视图已经放大或缩小 - (void)scrollViewDidZoom:(UIScrollView *)scrollView { NSLog(@"scrollViewDidScrollToTop"); } */

　　// 是否支持滑动至顶部 - (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView { return YES; }

　　// 滑动到顶部时调用该方法 - (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView { NSLog(@"scrollViewDidScrollToTop"); }

　   // scrollView 已经滑动 - (void)scrollViewDidScroll:(UIScrollView *)scrollView { NSLog(@"scrollViewDidScroll"); }

　　// scrollView 开始拖动 - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView { NSLog(@"scrollViewWillBeginDragging"); }

　　// scrollView 结束拖动 - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate { NSLog(@"scrollViewDidEndDragging"); }

　　// scrollView 开始减速（以下两个方法注意与以上两个方法加以区别）

　　- (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView { NSLog(@"scrollViewWillBeginDecelerating"); }

　　// scrollview 减速停止 - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView { NSLog(@"scrollViewDidEndDecelerating"); }