react native 刷新界面机制DeviceEventEmitter

A

import  {
DeviceEventEmitter
} from 'react-native';


//注册这个监听事件
componentDidMount(){
     DeviceEventEmitter.addListener('xxxName’, Function);
};


//在组件销毁的时候要将其移除
componentWillUnmount(){
    DeviceEventEmitter.remove();
};

B

1 import  {
2 DeviceEventEmitter
3 } from 'react-native';
4 
5 //调用事件通知  param是指传递的相应参数
6 DeviceEventEmitter.emit('xxxName’,param);

转

http://www.cnblogs.com/huangjialin/p/6170009.html