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ScrollView常用代理方法:

#pragma mark - 滾動(dòng)結(jié)束調(diào)用 -(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {// 計(jì)算 滑動(dòng)到了第幾頁(yè)double page = scrollView.contentOffset.x / scrollView.width;self.pageControl.currentPage = (int)(page + 0.5); } // 只要滾動(dòng)了就會(huì)調(diào)用 - (void)scrollViewDidScroll:(UIScrollView *)scrollView {NSLog(@"ContentOffset x is %f,yis %f",scrollView.contentOffset.x,scrollView.contentOffset.y);}

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#pragma mark - 將開(kāi)始降速時(shí)
- (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView {
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??? NSLog(@"開(kāi)始減速了");
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}

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#pragma mark - 拖的過(guò)程 手指離開(kāi)調(diào)用
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate {
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??? NSLog(@"手指離開(kāi)了");
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}

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#pragma mark - 手指開(kāi)始 滑動(dòng)調(diào)用
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {
?? ?
??? NSLog(@"手指滑動(dòng)了");
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}

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轉(zhuǎn)載于:https://my.oschina.net/codeismygirl/blog/644172

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