react第一阶段第一个界面 - LewinJun/reactNative GitHub Wiki
react 其实就是一个View,facebook jsbridge解析js，把js标签动态绘制成native组件显示到这个view上。
index.ios.js
import React, { Component } from 'react';
import {
AppRegistry,
StyleSheet,
Text,
View
} from 'react-native';
export default class reactLewinDemo extends Component {
render() {
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>
);
}
}
const 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('reactLewinDemo', () => reactLewinDemo);
index.android.js
import React, { Component } from 'react';
import {
AppRegistry,
StyleSheet,
Text,
View
} from 'react-native';
export default class reactLewinDemo extends Component {
render() {
return (
<View style={styles.container}>
<Text style={styles.welcome}>
Welcome to React Native!
</Text>
<Text style={styles.instructions}>
To get started, edit index.android.js
</Text>
<Text style={styles.instructions}>
Double tap R on your keyboard to reload,{'\n'}
Shake or press menu button for dev menu
</Text>
</View>
);
}
}
const 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('reactLewinDemo', () => reactLewinDemo);
这两个是react界面主入口
iOS这块用到的是RCTRootView这个View类去呈现视图，我这边在Appdelegate启动里面做测试
-(BOOL)reactNativeTestView:(NSDictionary *)launchOptions{
//访问js路径，debug访问的是node本地服务器的js资源文件，8081 端口号可以看自己本地端口
NSURL *jsCodeLocation = [NSURL URLWithString:@"http://localhost:8081/index.ios.bundle?platform=ios&dev=true&hot=false&minify=false"];
//传给reactjs的参数json
NSDictionary *props = @{@"url":@"http://www.lianshang.com"};
//moduleName的名称是reactjs export的名称如:AppRegistry.registerComponent('reactLewinDemo', () => reactLewinDemo);
RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation
moduleName:@"reactLewinDemo"
initialProperties:props
launchOptions:launchOptions];
rootView.backgroundColor = [[UIColor alloc] initWithRed:1.0f green:1.0f blue:1.0f alpha:1];
self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
UIViewController *rootViewController = [UIViewController new];
rootViewController.view = rootView;
self.window.rootViewController = rootViewController;
[self.window makeKeyAndVisible];
}
在AppDelegate的didFinishLaunchingWithOptions方法第一行调用return [self reactNativeTestView:launchOptions];即可。 工作做好后在项目根目录执行npm start启动node
待完善