ReactNative iOS sendEventWithName 原因“RCTCallableJSModules 未设置”

Question

我有以下情况。

2 个相同的 react-native 应用程序（仅对 bundleId、应用程序图标等不同）结构如下：

->项目结构

我的目标是当用户收到或点击推送通知时（假设应用程序处于前台并且应用程序已完成启动），通过桥从本机端向 JS 层发出事件。 在第一个应用程序上，当我使用命令xcrun simctl push <device-id> <bundleId> <filename>.apns向我的模拟器触发推送通知时，以下代码按预期工作，第二个应用程序立即崩溃并出现以下错误：

Thread 1: "Error when sending event: pushDelivered with body: <the string passed as body>. RCTCallableJSModules is not set. This is probably because you've explicitly synthesized the RCTCallableJSModules in CustomEventsEmitter, even though it's inherited from RCTEventEmitter."

-> xcode 查看

这是引发断言的 RCTEventEmitter 的 sendEventWithName 的代码实现。

我不知道这是否与我的实施有关。 在 2 个应用程序中的 1 个应用程序中，在另一个应用程序中就像一个魅力。 任何人都可以帮我找到代码中的问题吗？ 应该是桥的问题？

我已经尝试过多次重新安装 pod、清理项目和重建。 该代码适用于项目A，而不适用于项目B ..我无法弄清楚原因

AppDelegate.h

#import <React/RCTBridgeDelegate.h>
#import <React/RCTBridgeModule.h>
#import <UIKit/UIKit.h>
#import <UserNotifications/UserNotifications.h>
#import <UserNotifications/UNUserNotificationCenter.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate, RCTBridgeDelegate, RCTBridgeModule, UNUserNotificationCenterDelegate>

@property (nonatomic, strong) UIWindow *window;
@property (nonatomic, strong) NSDictionary *receivedNotificationUserInfo;

@end

AppDelegate.mm

#import "AppDelegate.h"

#import <React/RCTBridge.h>
#import <React/RCTBundleURLProvider.h>
#import <React/RCTRootView.h>

#import <React/RCTAppSetupUtils.h>
#import <UserNotifications/UserNotifications.h>

#import "CustomEventsEmitter.h"

@implementation AppDelegate

bool hasFinishedLaunching = false;
CustomEventsEmitter *customEventsEmitter = NULL;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
  hasFinishedLaunching = true;
  customEventsEmitter = [CustomEventsEmitter allocWithZone: nil];

  RCTAppSetupPrepareApp(application);

  RCTBridge *bridge = [[RCTBridge alloc] initWithDelegate:self launchOptions:launchOptions];


  NSDictionary *initProps = [self prepareInitialProps];
  UIView *rootView = RCTAppSetupDefaultRootView(bridge, @"MyAppName", initProps);

  if (@available(iOS 13.0, *)) {
    rootView.backgroundColor = [UIColor systemBackgroundColor];
  } else {
    rootView.backgroundColor = [UIColor whiteColor];
  }

  self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
  UIViewController *rootViewController = [UIViewController new];
  rootViewController.view = rootView;
  self.window.rootViewController = rootViewController;
  [self.window makeKeyAndVisible];


  // Define UNUserNotificationCenter
  UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
  center.delegate = self;


  return YES;
}

- (NSURL *)sourceURLForBridge:(RCTBridge *)bridge
{
#if DEBUG
  return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index"];
#else
  return [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"];
#endif
}

-(void)applicationDidBecomeActive:(UIApplication *)application
{
  application.applicationIconBadgeNumber = 0;
}


// The method will be called on the delegate when the user responded to the notification by opening
// the application, dismissing the notification or choosing a UNNotificationAction. The delegate
// must be set before the application returns from applicationDidFinishLaunching:.
- (void)userNotificationCenter:(UNUserNotificationCenter *)center
didReceiveNotificationResponse:(UNNotificationResponse *)response
         withCompletionHandler:(void (^)(void))completionHandler {

  NSLog(@"didReceiveNotificationResponse response: %@", response);
  NSDictionary *userInfo = response.notification.request.content.userInfo;
  if (userInfo[@"_od"]){

    // if no listeners has been registered yet, store the value
    // this is the case when the notification was clicked from closed app
    if(![customEventsEmitter hasListeners]) {
      // handle this case ...
    }
    // if listeners has been registered, emit an event
    // this is the case when the notification was clicked from foreground app
    else {
      [self emitPushTappedEvent:userInfo[@"_od"]];
    }

  }

  if (completionHandler != nil) {
    completionHandler();
  }
}


//Called when a notification is delivered to a foreground app.
-(void)userNotificationCenter:(UNUserNotificationCenter *)center
      willPresentNotification:(UNNotification *)notification
        withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler
{
  NSDictionary *userInfo = notification.request.content.userInfo;
  NSLog(@"User Info : %@", userInfo);

  [self emitPushDeliveredEvent:userInfo[@"_od"]];

  completionHandler(UNNotificationPresentationOptionSound | UNNotificationPresentationOptionAlert | UNNotificationPresentationOptionBadge);
}


-(void)emitPushDeliveredEvent:(NSString*)value {
  NSLog(@"emitPushDeliveredEvent called");
  [customEventsEmitter sendEventWithName:@"pushDelivered" body:value];
}

-(void)emitPushTappedEvent:(NSString*)value {
  NSLog(@"emitPushTappedEvent called");
  [customEventsEmitter sendEventWithName:@"pushTapped" body:value];
}



@end

这是 CustomEventsEmitter 文件：

CustomEventsEmitter.h

#ifndef CustomEventsEmitter_h
#define CustomEventsEmitter_h


#import <React/RCTBridgeModule.h>
#import <React/RCTEventEmitter.h>

@interface CustomEventsEmitter : RCTEventEmitter <RCTBridgeModule>

- (void)sendEventName:(NSString *)eventName body:(id)body;
- (bool)hasListeners;

@end


#endif

CustomEventsEmitter.m

#import "CustomEventsEmitter.h"

@implementation CustomEventsEmitter
{
  bool hasListeners;
}

RCT_EXPORT_MODULE(CustomEventsEmitter);

+ (id)allocWithZone:(NSZone *)zone {
  static CustomEventsEmitter *sharedInstance = nil;
  static dispatch_once_t onceToken;
  dispatch_once(&onceToken, ^{
    sharedInstance = [super allocWithZone:zone];
  });
  return sharedInstance;
}


- (NSArray<NSString *> *)supportedEvents {
  return @[@"pushDelivered", @"pushTapped"];
}

// Will be called when this module's first listener is added.
-(void)startObserving {
  hasListeners = YES;
  // Set up any upstream listeners or background tasks as necessary
}

// Will be called when this module's last listener is removed, or on dealloc.
-(void)stopObserving {
  hasListeners = NO;
  // Remove upstream listeners, stop unnecessary background tasks
}

-(bool)hasListeners {
  return hasListeners;
}


- (void)sendEventName:(NSString *)eventName body:(id)body {
  if (hasListeners) {
    NSLog(@"CustomEventsEmitter sendEventName emitting event: %@", eventName);
    [self sendEventWithName:eventName   body:body];
  } else {
    NSLog(@"CustomEventsEmitter sendEventName called without listeners: %@", eventName);
  }
}

@end

请帮助我理解

Answer 1

哦，我已经解决了。 这是我的一个错误。

AppModule 没有正确调用 CustomEventsEmitter 的方法。像下面这样更改代码会使事件通过 RN 桥正确发出

-(void)emitPushDeliveredEvent:(NSString*)value {
  NSLog(@"emitPushDeliveredEvent called");
  [customEventsEmitter sendEventName:@"pushDelivered" body:value];
//[customEventsEmitter sendEventWithName:@"pushDelivered" body:value];
}

-(void)emitPushTappedEvent:(NSString*)value {
  NSLog(@"emitPushTappedEvent called");
  [customEventsEmitter sendEventName:@"pushTapped" body:value];
//[customEventsEmitter sendEventWithName:@"pushTapped" body:value];
}