在Flutter中，子控件如何阻止其可滚动父控件的滚动? [英] In Flutter, how can a child widget prevent the scrolling of its scrollable parent?

问题描述

我有一个可滚动的小部件，例如ListView，其中包含一些特殊的小部件.

I have a scrollable widget, say a ListView, which contains some special widget.

当用户尝试通过在该小部件顶部滚动来尝试滚动时，如何防止滚动条滚动?

How can I prevent the scrollable to scroll when the user tries to scroll by starting to scroll on top of that widget?

换句话说，我希望该小部件像一个小孔"，以防止可滚动屏幕感应到那里的手势.

In other words, I want that widget to be like a "hole" that prevents the scrollable to sense gestures there.

推荐答案

用GestureDetector包裹小部件，并在其中实现空手势功能.

Wrap the widget with GestureDetector and implement empty gesture functions in it.

GestureDetector(
   onVerticalDragUpdate: (_) {},
   child: YourWidget
),

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