- React Native 教程
- React Native - 主页
- 核心概念
- React Native - 概览
- React Native - 环境设置
- React Native - 应用程序
- React Native - 状态
- React Native - 道具
- React Native - 样式
- React Native - Flexbox
- React Native - ListView
- React Native - 文本输入
- React Native - ScrollView
- React Native - 图像
- React Native - HTTP
- React Native - 按钮
- React Native - 动画
- React Native - 调试
- React Native - 路由器
- React Native - 运行 IOS
- React Native - 运行 Android
- 组件和 API
- React Native - View
- React Native - WebView
- React Native - Modal
- React Native - ActivityIndicator
- React Native - Picker
- React Native - Status Bar
- React Native - Switch
- React Native - Text
- React Native - Alert
- React Native - 地理位置
- React Native - AsyncStorage
- React Native 有用资源
- React Native - 快速指南
- React Native - 有用资源
- React Native - 讨论
React Native - 应用程序
如果您打开默认应用,可以看出 app.js 文件 wygląda
import React from 'react'; import { StyleSheet, Text, View } from 'react-native'; export default class App extends React.Component { render() { return ( <View style = {styles.container}> <Text>Open up App.js to start working on your app!</Text> <Text>Changes you make will automatically reload.</Text> <Text>Shake your phone to open the developer menu.</Text> </View> ); } } const styles = StyleSheet.create({ container: { flex: 1, backgroundColor: '#fff', alignItems: 'center', justifyContent: 'center', }, });
输出
你好,世界
要显示一条简单的消息,内容为“欢迎来到 Tutorialspoint”,可移除 CSS 部分,并将要打印的消息插入由 <<text></text> 标签包装在 <<view></view> 内,如下所示。
import React from 'react'; import { StyleSheet, Text, View } from 'react-native'; export default class App extends React.Component { render() { return ( <View> <Text>Welcome to Tutorialspoint</Text> </View> ); } }
广告