问题描述
我在 UIScrollView 中有一些 UIButton，但我不想延迟按钮的触摸.但是，一旦滚动视图检测到拖动/滚动，我想取消 UIButton 触摸并继续滚动 UIScrollView.
I have some UIButtons within a UIScrollView, but I do not want to delay the button touches. However, as soon as the scroll view detects a drag/scroll, I want to cancel the UIButton touch and proceed with the scrolling of the UIScrollView.
我已包含以下内容...
I have included the following...
_scrollView.delaysContentTouches = NO;
...但是(显然)按钮触摸在拖动时不会取消.有人对我如何实现此功能有任何建议吗?
...but (obviously) the button touch does not cancel when dragged. Does anyone have any suggestions as to how I can implement this functionality?
推荐答案
你可以重写UIScrollView的这个方法.
You can override this method of UIScrollView.
-(BOOL)touchesShouldCancelInContentView:(UIView *)view
{
return YES;
}
在你的 UIButton 中，你应该为不同的控件事件添加不同的方法.
And in your UIButton, you should add different method for different control events.
- 显示
UIControlEventTouchDown的高亮效果. UIControlEventTouchUpInside 的触发按钮 |UIControlEventTouchUpOutside;- 清除
UIControlEventTouchCancel的高亮效果.
- show highlight effect for
UIControlEventTouchDown. - trigger button for
UIControlEventTouchUpInside | UIControlEventTouchUpOutside; - clear highlight effect for
UIControlEventTouchCancel.
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