【UIKit-93-2】#import <UIKit/UIScrollView.h>

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#import <UIKit/UIScrollView.h>

@protocol UIScrollViewDelegate<NSObject>

@optional

【滚动】

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

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView;

- (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset;

- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate;

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{    NSLog(@"将要开始拖动（有延迟）");}- (void)scrollViewDidScroll:(UIScrollView *)scrollView{        NSLog(@"滚动就调用");}- (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset{    NSLog(@"将要结束拖动");}- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{    NSLog(@"结束拖动");}

【减速】

- (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView;

- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView;

- (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView{    NSLog(@"开始减速");}- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{    NSLog(@"结束减速");}

【缩放】

- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView;

- (void)scrollViewWillBeginZooming:(UIScrollView *)scrollView withView:(UIView *)view;

- (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(CGFloat)scale;

- (void)scrollViewDidZoom:(UIScrollView *)scrollView NS_AVAILABLE_IOS(3_2);

- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView{    //支持放大的contentView    return imgView1;    }- (void)scrollViewWillBeginZooming:(UIScrollView *)scrollView withView:(UIView *)view{    NSLog(@"将要变化");}- (void)scrollViewDidZoom:(UIScrollView *)scrollView{    NSLog(@"变化就调用");    }- (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(CGFloat)scale{    NSLog(@"结束变化");}

【滚到顶部】

- (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView; // return a yes if you want to scroll to the top. if not defined, assumes YES

- (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView; // called when scrolling animation finished. may be called immediately if already at top

- (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView{    //点击状态栏，滚到顶部    return YES;}- (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView{    NSLog(@"滚动顶部结束时");    };

【有关动画】

- (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView;

- (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView{    NSLog(@"animation  相关的 动画结束时。");    }

@end

- (void)scrollViewDidZoom:(UIScrollView *)scrollView NS_AVAILABLE_IOS(3_2); // any zoom scale changes

- (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView; // called when setContentOffset/scrollRectVisible:animated: finishes. not called if not animating

- (void)scrollViewDidZoom:(UIScrollView *)scrollView NS_AVAILABLE_IOS(3_2); // any zoom scale changes

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