projectzerorn-umeng-push/UmengPush.js

``` rnpm install react-native-umeng-push ```

'use strict';

import React, {
    NativeModules,
    DeviceEventEmitter, //android
    NativeAppEventEmitter, //ios
    Platform,
    AppState,
} from 'react-native';

const UmengPushModule = NativeModules.UmengPush;

var receiveMessageSubscript, openMessageSubscription;

var UmengPush = {

    enable(){
        UmengPushModule.enable();
    },

    disable(){
        UmengPushModule.disable();
    },

    isEnabled(handler:Function) {
        UmengPushModule.isEnabled(handler);
    },

    getDeviceToken(handler:Function) {
        UmengPushModule.getDeviceToken(handler);
    },

    didReceiveMessage(handler:Function) {
        receiveMessageSubscript = this.addEventListener(UmengPushModule.DidReceiveMessage, message => {
            //处于后台时，拦截收到的消息
            if (AppState.currentState === 'background') {
                return;
            }
            handler(message);
        });
    },

    didOpenMessage(handler:Function) {
        openMessageSubscription = this.addEventListener(UmengPushModule.DidOpenMessage, handler);
    },

    addEventListener(eventName:string, handler:Function) {
        if (Platform.OS === 'android') {
            return DeviceEventEmitter.addListener(eventName, (event) => {
                handler(event);
            });
        }
        else {
            return NativeAppEventEmitter.addListener(
                eventName, (userInfo) => {
                    handler(userInfo);
                });
        }
    },
};

module.exports = UmengPush;