如何阻止UIScrollView吞下触摸 [英] How to Stop a UIScrollView from Swallowing Touches

问题描述

我有很多子视图的UIScrollView.滚动时，我想点击要拖动的子视图.是否有可能使UIScrollView停止吞咽触摸?还是在取消滚动时就可以开始新的触摸(就像它滚动时一样，我点击了子视图，子视图也会被点击，所以我可以将其拖出)?

I have UIScrollView that has many subviews. When I scroll, I want to tap on a subview which I want to be dragged. Is there a possible way to make the UIScrollView stop from swallowing touches? Or is it possible to start new touch when you cancel the scrolling (like what it scrolls and I tapped on it, the subview will be tapped as well so I can drag it out)?

推荐答案

子类UIScrollView并重写- (BOOL)touchesShouldCancelInContentView:(UIView *)view方法.这是一个允许uibutton触摸通过的示例:

Subclass UIScrollView and override the - (BOOL)touchesShouldCancelInContentView:(UIView *)view method. Here's an example to allow uibutton touches to pass through:

#import "scrollViewWithButtons.h"

@implementation scrollViewWithButtons

- (BOOL)touchesShouldCancelInContentView:(UIView *)view
{
    return ![view isKindOfClass:[UISlider class]];
}

@end

这篇关于如何阻止UIScrollView吞下触摸的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！