React-Native基础_5.列表视图ListView

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列表视图ListView
用来显示垂直滚动列表,需要指定两个东西,1 数据的来源 dataSource,2 渲染列表的条目布局 rendRow
'use strict'
import React,{Component} from 'react';
import {
    AppRegistry,StyleSheet,Text,Image,View,ListView,} from 'react-native';
//import {AppRegistry,} from 'react-native';
//import Day0718 from './componets/Home'

export default class Day0718 extends Component {
    constructor(props) {
        super(props);
        let movies = [
            {title: '肖申克的救赎'},{title: '这个杀手不太冷'},{title: '阿甘正传'},{title: '霸王别姬'},{title: '美丽人生'},];

        let dataSource = new ListView.DataSource({rowHasChanged: (r1,r2) => r1 !== r2});
        this.state = {
            movies: dataSource.cloneWithRows(movies)
        };
    }

    render() {
        return (
            <View style={styles.Container}>
                <ListView
                    dataSource={this.state.movies}
                    renderRow={
                        movie => <Text style={styles.itemText}>{movie.title} </Text>
                    }
                />
            </View>
        );
    }
}
const styles = StyleSheet.create({
    overlay: {
        backgroundColor: 'rgba(0,0.3)',alignItems: 'center'
    },overlayHeader: {
        fontSize: 33,fontFamily: 'Helvetica Neue',fontWeight: '200',color: '#eae7ff',padding: 10
    },overlaySubHeader: {
        fontSize: 16,padding: 10,paddingTop: 0,},backImage: {
        // alignItems:'center',flex: 1,//justifyContent:'center',resizeMode: 'cover',image: {

        height: 200,width: 100,justifyContent: 'center',item: {
        backgroundColor: '#fff',borderWidth: 1,borderColor: '#6435c9',margin: 6,itemOne: {
        //  alignSelf:'flex-start',itemTwo: {
        //alignSelf:'center',itemThree: {
        flex: 2,itemText: {
        fontSize: 33,color: '#6435c9',padding: 30,Container: {

        //alignItems:'flex-start',// flex-start 靠在左边显示 center 居中 flex-end 尾部
        //
        flexDirection: 'column',//row column 方向
        backgroundColor: '#eae7ff',//center ; 居中  flex-end 位于底部  space-between/space-around屏幕平均分配
    },Text: {
        color: '#6435c9',fontSize: 26,textAlign: 'center',fontStyle: 'italic',letterSpacing: 2,lineHeight: 33,fontWeight: '300',textDecorationLine: 'underline',textDecorationStyle: 'dashed',});

class ComText extends React.Component {
    render() {
        return (
            <Text style={styles.itemText}>
                {this.props.children}
            </Text>
        );
    }
}

AppRegistry.registerComponent('Day0718',() => Day0718);

模拟数据 展示ListView


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原文链接:https://www.f2er.com/react/303380.html

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