iOS 向ReactNative 發(fā)送通知事件

[self.bridge.eventDispatcher sendAppEventWithName:@"EventReminder_BarcodeScanSuccessForRN"

的時(shí)候會(huì)提示

'sendDeviceEventWithName:body:'is deprecated: SubclassRCTEventEmitterinstead

查看源碼發(fā)現(xiàn)，DeviceEventEmitter 和NativeAppEventEmitter 均已經(jīng)被遺棄。
DeviceEventEmitter源碼描述

/**
 * Deprecated - subclass NativeEventEmitter to create granular event modules instead of
 * adding all event listeners directly to RCTDeviceEventEmitter.
 */

NativeAppEventEmitter源碼描述

/**
 * Deprecated - subclass NativeEventEmitter to create granular event modules instead of
 * adding all event listeners directly to RCTNativeAppEventEmitter.
 */

同時(shí)都推薦使用NativeEventEmitter子類
在0.28版本之后，iOS向Js端發(fā)射消息的 思路如下
Natived端，新版本模塊類頭文件必須繼承自RCTEventEmitter
1.-(NSArray *)supportedEvents;中設(shè)置所支持的通知的名稱
2.- (void)startObserving; Native端開(kāi)啟通知
3.RN使用NativeEventEmitter.addListener模塊監(jiān)聽(tīng)通知
4.RN在 componentWillUnmount 中remove移除通知
5.- (void)stopObserving Native端移除通知

Native部分
.h

#import "RCTEventEmitter.h"

@interface MallManageAPI : RCTEventEmitter <RCTBridgeModule>

.m

-(NSArray *)supportedEvents {
return@[@"EventReminder_CollectionProductSuccessForRN"];
}
- (void)startObserving {
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(CollectionProductSuccessForRNAction:)
                                                 name:@"CollectionProductSuccessForRN"
                                               object:nil];
  }

- (void)CollectionProductSuccessForRNAction:(NSNotification*)notification {
    
    dispatch_async(dispatch_get_main_queue(), ^{
    [self sendEventWithName:@"EventReminder_CollectionProductSuccessForRN" body:nil];
    });

}

- (void)stopObserving {
[[NSNotificationCenterdefaultCenter]removeObserver:selfname:@"CollectionProductSuccessForRN"object:nil];
}

RN部分

import React, { Component } from 'react';
import {
    NativeModules,
    Platform,
    //NativeAppEventEmitter,
    NativeEventEmitter
} from 'react-native';
var NativeModulesByIOS = NativeModules.MallManageAPI;

const NativeNotificationMoudule = new NativeEventEmitter(NativeModulesByIOS)

 componentWillMount() {
        console.log('開(kāi)始訂閱通知...');
        if (Platform.OS === 'ios') {
            subscription = NativeNotificationMoudule.addListener(
                'EventReminder_CollectionProductSuccessForRN',
                (reminder) => {
                    this._onRefresh()
                }
            );
        } else {
        }
    }

componentWillUnmount() {
        if (Platform.OS === 'ios') {
            subscription.remove();
        } else {
        }
    }