Scrolltooffset flatlist. map() use our hook called useMappingHelper. — You are receiving this because you were mentioned. In general, this should only really be used if you need more flexibility than FlatList provides, e. In React Native development, FlatList is a tool for rendering large lists of data efficiently. The reason I am not using scrollToIndex is that with scrollToIndex I cannot control the speed of the scroll. Check your renderItem hierarchy for May 20, 2018 · How to do this with a Animated FlatList? I don't see either scrollToOffset nor scrollToIndex Usually works with other ScrollView-like and FlatList-like components if they use a ScrollView under the hood and are made animated. FlatList 高性能的简单列表组件,支持下面这些常用的功能: 完全跨平台。 支持水平布局模式。 行组件显示或隐藏时可配置回调事件。 支持单独的头部组件。 支持单独的尾部组件。 支持自定义行间分隔线。 支持下拉刷新。 支持上拉加载。 支持跳转到指定行(ScrollToIndex)。 支持多列布局。 如果 Oct 29, 2020 · Use the react-native FlatList scrollToIndex function to scroll a list view to a certain item's index whether you have fixed or variable row sizes. This method is used to scroll to an offset and is similar to contentOffset prop. But I tried with referencing React element but i. Instead of trying to figure out where to scroll to using the scrollToOffset method, I'm still using the scrollToIndex method and use the viewOffset parameter in order to calculate how much offset to add to the method: the difference between the expanded and collapsed heights of any other currently expanded item (if any) and subtracting the top margin of the clicked item.
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