iOS原生调用RN

参考链接：https://www.jianshu.com/p/668024972b44

这块之前按照文档写，写的不完整，报错  bridge is not set. 

首先继承RCTEventEmitter，实现suppportEvents方法并调用self sendEventWithName:。

#import <Foundation/Foundation.h>

#import <React/RCTBridgeModule.h>

#import <React/RCTEventEmitter.h>

@interface NoticaManager : RCTEventEmitter<RCTBridgeModule>

@end

#import "NoticaManager.h"

@implementation NoticaManager

RCT_EXPORT_MODULE();

-(id)init

{

  self = [super init];

  

  if (self) {

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(receivePushNotificateRN:) name:@"EventReminder" object:nil];

  }

  return self;

  

}

- (NSArray<NSString *> *)supportedEvents

{

  return @[@"EventReminder"];

}

- (void)receivePushNotificateRN:(NSNotification *)notification

{

  NSString *eventName = notification.userInfo[@"name"];

  [self sendEventWithName:@"EventReminder" body:@{@"name": eventName}];

}

@end

JavaScript代码可以创建一个包含你的模块的NativeEventEmitter实例来订阅这些事件。导入NativeModules,NativeEventEmitter

import {
    Platform,
    StyleSheet,
    Text,
    View,
    AppRegistry,
    NativeModules,
    NativeEventEmitter

} from 'react-native';

const { NoticaManager } = NativeModules;
const calendarManagerEmitter = new NativeEventEmitter(NoticaManager);

componentDidMount(){

    const subscription = calendarManagerEmitter.addListener(
        'EventReminder',
        (reminder) => console.log(reminder.name)
    );

}



原生调用交互入口：

#import "SecondViewController.h"

#import "NoticaManager.h"

@interface SecondViewController ()

@end

@implementation SecondViewController

- (void)viewDidLoad {

    [super viewDidLoad];

  self.view.backgroundColor = [UIColor redColor];

  UIButton*btn = [UIButton new];

  btn.frame = CGRectMake(100, 60, 100, 40);

  [btn setTitle:@"调用RN" forState:UIControlStateNormal];

  [btn addTarget:self action:@selector(clickBtn) forControlEvents:UIControlEventTouchUpInside];

  [self.view addSubview:btn];

  NoticaManager*managet = [[NoticaManager alloc]init];

    // Do any additional setup after loading the view.

}

-(void)clickBtn{

  

  [[NSNotificationCenter defaultCenter] postNotificationName:@"EventReminder" object:nil userInfo:@{@"name":@"li"}];

}