react-native试玩(4)-新建项目

源码

/**
* Sample React Native App
* https://github.com/facebook/react-native */
'use strict';

var React = require('react-native');
var {
AppRegistry,
StyleSheet,
Text,
View,
} = React;

var helloworld = React.createClass({
render: function() {
return (
<View style={styles.container}>
<Text style={styles.welcome}>
Welcome to React Native!
</Text>
<Text style={styles.instructions}>
To get started, edit index.ios.js
</Text>
<Text style={styles.instructions}>
Press Cmd+R to reload,{'\n'}
Cmd+D or shake for dev menu
</Text>
</View>
);
}
});

var styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
textAlign: 'center',
color: '#333333',
marginBottom: 5,
},
});

AppRegistry.registerComponent('hellowrold',() => helloworld);

问题

AppRegistry.registerComponent('hellowrold',() => helloworld);

registerComponent

hellowrold

总结

引入react-native

var React = require('react-native');

定义组件

var {
AppRegistry,
StyleSheet,
Text,
View,
} = React;

定义界面控件

var helloworld = React.createClass({});

定义控件样式

var styles = StyleSheet.create({});

为项目注册界面

AppRegistry.registerComponent('项目名',() =>界面);