ReactNative: 使用View组件创建九宫格

/**
 * Sample React Native App
 * https://github.com/facebook/react-native
 * @flow
 */

//导入React和React-Native框架的系统组件
import React, { Component } from ‘react‘;
import {
  AppRegistry,
  StyleSheet,
  View
} from ‘react-native‘;

//创建应用组件
export default class ReactNativeDemo extends Component {
  render() {
    return (
      <View style={styles.flex}>
        <View style={[styles.flex,styles.container]}>
          <View style={styles.item}></View>
          <View style={styles.item}></View>
          <View style={styles.item}></View>
          <View style={styles.item}></View>
          <View style={styles.item}></View>
          <View style={styles.item}></View>
          <View style={styles.item}></View>
          <View style={styles.item}></View>
          <View style={styles.item}></View>
        </View>
      </View>
    );
  }
}

//创建样式表
const styles = StyleSheet.create({
  flex: {
    flex: 1 // 比例权重为1，会填充整体屏幕
  },
  container: {
    marginTop: 25,
    marginBottom: 5,
    marginLeft: 5,
    marginRight: 5,
    backgroundColor: ‘red‘, // 背景色为红色
    flexDirection: ‘row‘,   // View组件默认为纵向布局，这个改为横向布局
    flexWrap: ‘wrap‘,       // 宽度不足，可以换行
    justifyContent: ‘space-between‘, // 等比例间距排列
    borderRadius: 5, // 设置圆角
    padding: 5
  },
  item: {
    width: 340/3,
    height: 340/3,
    backgroundColor: ‘green‘,
    borderColor: ‘white‘,
    borderWidth: 1,
    marginBottom: 5
  }
});

//注册应用组件
AppRegistry.registerComponent(‘ReactNativeDemo‘, () => ReactNativeDemo);