Web {item.key}} /> More complex example demonstrating PureComponent usage for perf optimization and … WebThe props of FlatList remain the same, your _renderRow function may rely on the selectedCategory prop which does change (If not for the first mistake), but the FlatList component does not know about that. To solve this, use the extraData prop.
Отображение Faltlist после нажатия на RadioButton React native
WebApr 9, 2024 · 1 Answer Sorted by: 0 export const selectDishesByType = (state, type) => { return state.dishes.dishes.filter ( (dish) => dish.type === type); }; Now, it is ok, because state.dishes.dishes is an array. I should have been careful about the data details. Share Improve this answer Follow answered Apr 10 at 0:38 JeremyQin 31 4 Add a comment … WebMay 20, 2024 · Let’s look at how we get that result step by step. Start with importing all the necessary staff we have mentioned in the previous chapter. We need React and some methods from react–native.. import React from 'react'; import { StyleSheet, Text, View, SafeAreaView, FlatList, Platform, SafeAreaProvider} from "react-native"; phlebotomy book online free
How to get the index of the currently visible item in a React Native
Web我正在使用一個 FlatList 來實現分頁。 當用戶 go 到列表的頁腳時,它會命中 API 並且我將數據添加到現有數組中。 當用戶轉到頁腳並點擊 API 時,一切正常,然后新數據將添加到舊數據中,完整數據在列表中顯示一分鍾,然后舊數據突然消失,新數據僅留在列表中。 Web item.toString ()} renderItem= { ( { item, index }) => { item } } /> WebApr 28, 2024 · scrollToIndex (): It scrolls to a particular item whose index is provided. scrollToItem (): It scrolls to a provided item. It requires a linear scan through data. scrollToOffset (): It scrolls to a specific content pixel offset in the list. Now let’s start with the implementation: phlebotomy books for sale