react native flatlist code example

Example 1: react native flatlist

import React from 'react';
import { SafeAreaView, View, FlatList, StyleSheet, Text, StatusBar } from 'react-native';

const DATA = [
  {
    id: 'bd7acbea-c1b1-46c2-aed5-3ad53abb28ba',
    title: 'First Item',
  },
  {
    id: '3ac68afc-c605-48d3-a4f8-fbd91aa97f63',
    title: 'Second Item',
  },
  {
    id: '58694a0f-3da1-471f-bd96-145571e29d72',
    title: 'Third Item',
  },
];

const Item = ({ title }) => (
  
    {title}
  
);

const App = () => {
  const renderItem = ({ item }) => (
    
  );

  return (
    
       item.id}
      />
    
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    marginTop: StatusBar.currentHeight || 0,
  },
  item: {
    backgroundColor: '#f9c2ff',
    padding: 20,
    marginVertical: 8,
    marginHorizontal: 16,
  },
  title: {
    fontSize: 32,
  },
});

export default App;

Example 2: flatlist onrefresh react native

const [isFetching, setIsFetching] = useState(false);

const fetchData = () => {
  dispatch(getAllDataAction(userParamData));
  setIsFetching(false);
};

const onRefresh = () => {
  setIsFetching(true);
  fetchData();
};

 item.id.toString()}
  renderItem={renderItem}
  onRefresh={onRefresh}
  refreshing={isFetching}
  progressViewOffset={100}
  ListEmptyComponent={}
/>;

Example 3: flatlist react native horizontal

 { this.newsFeedListRef = ref; }}
    renderItem={this.renderNewsFeedRow.bind(this)}
    keyExtractor={(item, index) => `feed_${index}`}
    onRefresh={this.__handleNewsFeedOnRefresh.bind(this)}
    //renderScrollComponent={this.renderScrollComponent.bind(this)}
    ListHeaderComponent={this.renderListHeaderComponent.bind(this)}
    getItemLayout={(data, index) => ({ index, length: ITEM_HEIGHT, offset: (ITEM_HEIGHT * index) })} />

Example 4: flatlist like in reactjs

There is no specific component like it is in react-native to do this kind of stuff, so I usually just use map() to achieve this kind of things.

But if it is reusable you can surely create a List component for yourself so that you don't write map() function each time for the same list.

Kind of like this:

function Item(props) {
   return 
{props.value}
;
}

function MyList(items) {
   return (
    

      {items.map((item) => )}
    
  );
}