在ListView Flutter中获取当前可见的小部件 [英] Get current visible widget in ListView Flutter
本文介绍了在ListView Flutter中获取当前可见的小部件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在使用ListView.builder
,当我们向下滚动时,
如何在viewport
中获取当前可见的小部件.
类似于Android recyclerview
findFirstCompletelyVisibleItemPosition
I am using ListView.builder
, when we scroll up down,
how to get the currently visible widget in viewport
.
something like Android recyclerview
findFirstCompletelyVisibleItemPosition
推荐答案
Google提供了解决方案.
Google gives the solution.
https://github.com/google/flutter.widgets (此存储库包含Google开发的各种Flutter小部件的源代码,但不是Flutter核心团队开发的.)
https://github.com/google/flutter.widgets (This repository contains the source code for various Flutter widgets that are developed by Google but not by the core Flutter team.)
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