The Nesting VirtualizedLists in React Native: A Solution-Oriented Approach

The Code Conundrum: Consider the following snippet:

<ScrollView>
    <View className="py-8 px-6 bg-white flex-1">
        <Header />
        <Slider sliderList={sliderList}/>
        <Categories categoryList={categoryList}/>
        <LatestItemList latestItemList={latestItemList}/>
    </View>
</ScrollView>

When VirtualizedLists are nested within plain ScrollViews sharing the same orientation, a cascade of issues emerges. Windowing functionality, critical for optimizing performance by rendering only the visible items, breaks down. The result? Degraded user experience, sluggish scrolling, and potential memory leaks as the application struggles to manage excessive rendering.

• there’s a straightforward remedy: avoid nesting VirtualizedLists within plain ScrollViews. Instead, opt for a container that supports VirtualizedLists without compromising performance.

<FlatList
  ListEmptyComponent={  
    <View className="py-8 px-6 bg-white flex-1">
        <Header />
        <Slider sliderList={sliderList}/>
        <Categories categoryList={categoryList}/>
        <LatestItemList latestItemList={latestItemList}/>
    </View>
  }
/>

By migrating the nested VirtualizedList (LatestItemList) into a FlatList component, we sidestep the compatibility issues inherent in the ScrollView. This simple yet effective adjustment ensures optimal rendering and preserves the fluidity of the user interface.