标签:dia change ant already 距离 dde void 视图 distance
#pragma mark 监听滚动停止 // called on start of dragging (may require some time and or distance to move) // 开始拖动时调用(可能需要一些时间或距离才能移动) // 开始拖动时(手指在屏幕上) - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView { NSLog(@"111~~~~~~~~~~scrollViewWillBeginDragging:%ld", (long)scrollView.contentOffset.y); } // any offset changes // 任何偏移更改 - (void)scrollViewDidScroll:(UIScrollView *)scrollView { NSLog(@"222~~~~~~~~~~scrollViewDidScroll:%ld", (long)scrollView.contentOffset.y); } // called on finger up if the user dragged. velocity is in points/millisecond. targetContentOffset may be changed to adjust where the scroll view comes to rest // 如果用户拖动,则调用finger up。速度以点/毫秒为单位。可以更改targetContentOffset以调整滚动视图的静止位置 // 结束拖动时(手指离开屏幕)的速度(正-往上的速度,负-往下的速度) - (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset { NSLog(@"333~~~~~~~~~~scrollViewWillEndDragging:%ld, velocity:%lf", (long)scrollView.contentOffset.y, velocity.y); } // called on finger up if the user dragged. decelerate is true if it will continue moving afterwards // 如果用户拖动,则调用finger up。如果减速后继续移动,则为真 // 拖动完之后,如果会滑行,则为真 - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate { NSLog(@"444~~~~~~~~~~scrollViewDidEndDecelerating:%ld, decelerate:%d", (long)scrollView.contentOffset.y, decelerate); } // called on finger up as we are moving // 当我们移动的时候手指向上 // 开始滑行 - (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView { NSLog(@"555~~~~~~~~~~scrollViewWillBeginDecelerating:%ld", (long)scrollView.contentOffset.y); } // called when scroll view grinds to a halt // 当scroll view磨合停止时调用 // 停止滑行 - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView { NSLog(@"666~~~~~~~~~~scrollViewDidEndDecelerating:%ld", (long)scrollView.contentOffset.y); } // called when setContentOffset/scrollRectVisible:animated: finishes. not called if not animating // 当setContentOffset/scrollRectVisible:animated:finishes完成时调用。如果不设置动画,则不调用 - (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView { NSLog(@"777~~~~~~~~~~scrollViewDidEndScrollingAnimation:%ld", (long)scrollView.contentOffset.y); } // called when scrolling animation finished. may be called immediately if already at top // 当滚动动画完成时调用。如果已经在顶部,可以立即调用 // 当点击状态栏tableView回到顶部时调用 - (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView { NSLog(@"888~~~~~~~~~~scrollViewDidScrollToTop:%ld", (long)scrollView.contentOffset.y); } // Also see -[UIScrollView adjustedContentInsetDidChange] // tableView刚出现时会调用 - (void)scrollViewDidChangeAdjustedContentInset:(UIScrollView *)scrollView { NSLog(@"999~~~~~~~~~~scrollViewDidChangeAdjustedContentInset:%ld", (long)scrollView.contentOffset.y); } // return a yes if you want to scroll to the top. if not defined, assumes YES // 如果要滚动到顶部,请返回“是”。如果没有定义,则假设是 - (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView { return YES; }
标签:dia change ant already 距离 dde void 视图 distance
原文地址:https://www.cnblogs.com/cchHers/p/12423838.html