RN之FlatList SectionList SwipeableFlatList实现下拉刷新 上拉加载

1 导航容器类 FlatNav

import React,{Component} from 'react'
import {
    createAppContainer,
    createStackNavigator
} from 'react-navigation'
import FlatFirst from './FlatFirst'
import FlatListPraceice from './FlatListPractice'
const nav = createStackNavigator({
   first:{
       screen:FlatFirst,
       navigationOptions:{
           title:'首页'
       }
   } ,
    list:{
       screen:FlatListPraceice,
        navigationOptions:{
           title:'FlastList'
        }
    }
});
export default NavContainer = createAppContainer(nav);

2.首页

import React,{Component} from 'react'
import {View, Button, Text} from 'react-native'
export default class FlatFirst extends Component{
    render(){
        const {navigation} = this.props;
        //console.warn(navigation);
        return 
            FlastFirst
            {
                    navigation.navigate('list')
                }}
            >
            
        
    }
}

3. FlatList

import React, {Component} from 'react'
import {
    View,
    Button,
    StyleSheet,
    FlatList,
    Text,
    ActivityIndicator,
    RefreshControl
} from 'react-native'
const CITY_NAMES = ['北京','上海','广州','深圳','重庆','青岛'];
export default class FlatListPractice extends Component {
    constructor(props) {
        super(props);
        this.state = {
            isLoading:false,
            dataArray:CITY_NAMES
        }
    }
    _renderItem(data){
        return 
            {data.item}
        
    }
    loadData(isLoading){
        if (isLoading){
            this.setState({
                isLoading:true
            });
        }
        setTimeout(()=>{
            let dataArr = [];
            if (isLoading){
                for (let i = this.state.dataArray.length - 1;i>= 0;i--){
                    dataArr.push(this.state.dataArray[I]);
                }
            }else {
                dataArr = this.state.dataArray.concat(CITY_NAMES);
            }

            this.setState({
                isLoading:false,
                dataArray:dataArr
            });
        },2000);
    }
    getIdi(){
        return 
            
            上拉加载...
        
    }
    render() {
        return 
              this._renderItem(data)}
              refreshControl = {
                  {this.loadData(true)}}

                  />
              }
              ListFooterComponent={()=>this.getIdi()}
              onEndReached={()=>{this.loadData()}}
              />
        
    }
}
const styles = StyleSheet.create({
    container: {
        backgroundColor: 'gray',
        flex: 1

    },
    item:{
        backgroundColor:'green',
        height:80,
        marginLeft:15,
        marginRight:15,
        marginTop:15
    },
    indi:{
        alignItems:'center'
    }
});

---

SwipeableFaltList

Simulator Screen Shot - iPhone X - 2019-07-25 at 18.15.37.png

import React, {Component} from 'react'
import {
    View,
    Text,
    TouchableHighlight,
    FlatList,
    SwipeableFlatList,
    StyleSheet,
    RefreshControl,
    ActivityIndicator
} from 'react-native'

const CITY_NAMES = ['北京', '上海', '广州', '深圳', '青岛', '东平'];
export default class swipeableList2 extends Component {
    constructor(props) {
        super(props);
        this.state = {
            isLoading: false,
            dataArray: CITY_NAMES
        }
    }
    _renderItem(data) {
        return 
            {data.item}
        
    }

    loadData(isLoad) {
        if (isLoad) {
            this.setState({
                isLoading: true
            });
        }
        setTimeout(() => {
            let arr = [];
            if (isLoad) {
                for (let i = this.state.dataArray.length - 1; i >= 0; i--) {
                    arr.push(this.state.dataArray[I]);
                }
            } else {
                arr = this.state.dataArray.concat(CITY_NAMES);
            }
            this.setState({
                isLoading: false,
                dataArray: arr
            });
        }, 2000);
    }

    getIdr() {
        return 
            
            上拉加载更多
        
    }

    quickAction() {
        return 
             {
                    alert('确认删除');
                }}
            >
                
                    删除
                
            
        
    }

    render() {
        return 
             this._renderItem(data)}
                refreshControl={
                     {
                            this.loadData(true)
                        }}
                    />
                }
                ListFooterComponent={
                    () => this.getIdr()
                }
                onEndReached={() => {
                    this.loadData()
                }}
               renderQuickActions = {()=>this.quickAction()}
               maxSwipeDistance = {100}
            />
        
    }
}

const styles = StyleSheet.create({
    container: {
        flex: 1,
        backgroundColor: 'gray'
    },
    item: {
        marginTop: 15,
        marginRight: 15,
        marginLeft: 15,
        height: 60,
        backgroundColor: 'green'
    },
    quickContainer: {
        backgroundColor: 'red',
        flex: 1,
        alignItems:'flex-end',
        marginTop: 15,
        marginBottom: 0,
        marginLeft: 15,
        marginRight: 15,
    },
    quick: {
        padding:5,
        backgroundColor:'orange',
        justifyContent:'center',
        flex:1,
        width:100,
        alignItems:'center'
    },
});

---

SectionList

Simulator Screen Shot - iPhone X - 2019-07-25 at 20.33.18.png

import React, {Component} from 'react'
import {
    View,
    Text,
    SectionList,
    StyleSheet,
    RefreshControl,
    ActivityIndicator
} from 'react-native'

const CITY_NAMES = [{data: ['北京', '上海', '天津', '武汉'], title: '一线城市'}, {
    data: ['广州', '深圳', '陪娃', '南宁', '邹平'],
    title: '二线城市'
}, {data: ['青岛', '东平', '大连', '长春', '普吉岛', '马尔代夫'], title: '三线城市'}];
export default class sectionList extends Component {
    constructor(props) {
        super(props);
        this.state = {
            isLoading: false,
            dataArray: CITY_NAMES
        }
    }

    _renderItem(data) {
        return 
            {data.item}
        
    }

    loadData(isLoad) {
        if (isLoad) {
            this.setState({
                isLoading: true
            });
        }
        let arr = [];
        if (isLoad) {
            for (let i = this.state.dataArray.length - 1; i >= 0; i--) {
                arr.push(this.state.dataArray[i]);
            }
        } else {
            arr = this.state.dataArray.concat(CITY_NAMES);
        }

        setTimeout(() => {
            this.setState({
                isLoading: false,
                dataArray: arr
            });
        }, 2000);
    }

    getIdi() {
        return 
            
            上拉加载更多
        
    }

    _renderSection({section}) {

        return 
            
                {section.title}
            
        
    }
    render() {
        return 
             this._renderItem(data)}
                refreshControl={
                     {
                            this.loadData(true)
                        }}
                    />
                }
                ListFooterComponent={
                    () => this.getIdi()
                }
                onEndReached={() => {
                    this.loadData()
                }}
                renderSectionHeader={(section) =>this._renderSection(section)}
                keyExtractor={(item, index) => item + index}
                ItemSeparatorComponent={
                    ()=>
                }
            />
        
    }
}
const styles = StyleSheet.create({
    container: {
        flex: 1,
        backgroundColor: 'white'
    },
    item: {
        marginRight: 0,
        marginLeft: 0,
        marginTop: 15,
        height: 80,
        backgroundColor: 'white',
        alignItems:'center',
        justifyContent:'center'
    },
    sectionHeader:{
       height:50,
        backgroundColor:'#93ebbe',
        alignItems:'center',
        justifyContent:'center'
    },
    text:{

    },
    line:{
        backgroundColor:'gray',
        height:1,

    }
});