React Native iOS应用无法获取APNs Token导致FCM令牌无法生成的问题求助

各位开发者前辈好，我在React Native iOS项目（项目名LesFemmes）里遇到了推送功能的棘手问题：没法获取APNs Token，直接导致FCM令牌也生成不了，Firebase推送在iOS设备上完全跑不起来。我已经配置了Firebase的.p8文件，但问题依然存在。下面是我的AppDelegate.m完整代码，麻烦帮忙看看哪里出了问题，给点修复思路，万分感谢！

#import <Firebase.h>
#import <RNCPushNotificationIOS.h>
#import <React/RCTBundleURLProvider.h>
#import "RNSplashScreen.h"
#import <UserNotifications/UserNotifications.h>
#import <FirebaseMessaging/FirebaseMessaging.h>

@interface AppDelegate () <UNUserNotificationCenterDelegate, FIRMessagingDelegate>
@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  self.moduleName = @"LesFemmes";
  self.initialProps = @{};
  
  [RNSplashScreen show];
  
  // Firebase setup
  [FIRApp configure];
  [FIRMessaging messaging].delegate = self;
  
  // Set UNUserNotificationCenter delegate
  [UNUserNotificationCenter currentNotificationCenter].delegate = self;
  
  // Request user permission for notifications
  UNAuthorizationOptions authOptions = UNAuthorizationOptionAlert | UNAuthorizationOptionSound | UNAuthorizationOptionBadge;
  [[UNUserNotificationCenter currentNotificationCenter] requestAuthorizationWithOptions:authOptions completionHandler:^(BOOL granted, NSError * _Nullable error) {
    if (error) {
      NSLog(@"Error in APNs authorization: %@", error);
    }
    if (granted) {
      NSLog(@"✅ Notification permission granted");
    } else {
      NSLog(@"❌ Notification permission denied");
    }
  }];
  
  // ✅ Always register for remote notifications — even if permission was already granted
  dispatch_async(dispatch_get_main_queue(), ^{
    [[UIApplication sharedApplication] registerForRemoteNotifications];
  });
  
  return [super application:application didFinishLaunchingWithOptions:launchOptions];
}

// Called when the device successfully registers with APNs
- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
  NSLog(@"✅ didRegisterForRemoteNotificationsWithDeviceToken called");
  NSLog(@"APNs Device Token: %@", deviceToken);
  [FIRMessaging messaging].APNSToken = deviceToken;
  
  const unsigned *tokenBytes = (const unsigned *)[deviceToken bytes];
  NSMutableString *hexToken = [NSMutableString string];
  for (NSInteger i = 0; i < deviceToken.length; i++) {
    [hexToken appendFormat:@"%02x", tokenBytes[i]];
  }
  NSLog(@"🔑 APNs Token Hex: %@", hexToken);
}

// Called when Firebase generates a new FCM token
- (void)messaging:(FIRMessaging *)messaging didReceiveRegistrationToken:(NSString *)fcmToken {
  NSLog(@"🔥 Firebase Registration Token (FCM): %@", fcmToken);
  // TODO: Send the FCM token to your backend server here
}

// Required to support foreground push notifications (iOS 10+)
- (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler {
  completionHandler(UNNotificationPresentationOptionAlert | UNNotificationPresentationOptionSound | UNNotificationPresentationOptionBadge);
}

// Required to handle notification tap actions (when app is in background or killed)
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void(^)(void))completionHandler {
  completionHandler();
}

- (NSURL *)sourceURLForBridge:(RCTBridge *)bridge {
  return [self bundleURL];
}

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

@end

我整理的排查&修复方向： #

• 必须用真实iOS设备测试：模拟器完全不支持APNs推送，这是新手最容易踩的坑，一定要拿实体设备测！
• 补全APNs注册失败的回调方法：你现在的代码缺少关键的错误反馈入口，苹果会在注册失败时返回具体错误信息，赶紧加上这个方法，能帮你精准定位问题：

  - (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error {
      NSLog(@"❌ APNs注册失败：%@", error.localizedDescription);
      NSLog(@"错误详情：%@", error);
  }
  

• 检查Xcode项目核心配置：
  • 进入项目「Signing & Capabilities」，确认已经添加「Push Notifications」能力，且对应的Provisioning Profile包含推送权限（可去苹果开发者后台验证Profile权限）
  • 确保项目Bundle ID和Firebase控制台注册的iOS应用Bundle ID完全一致（大小写、特殊字符都不能错）
  • 确认GoogleService-Info.plist已正确添加到项目，且Xcode右侧「Target Membership」勾选了你的项目目标
• 验证Firebase推送配置：
  • 打开Firebase控制台对应iOS应用的「Cloud Messaging」页面，检查「APNs Authentication Key」：.p8文件、Team ID、Key ID必须和苹果开发者后台生成的完全匹配
  • 开发/生产环境的推送配置是分开的，测试时要确保对应环境的配置正确
• 权限&网络检查：
  • 打开iOS设备「设置-通知」，确认你的应用已开启所有通知权限
  • 设备需要能正常连接苹果APNs服务器，测试时尽量用稳定网络（避免VPN或受限网络）

如果有新的错误日志或排查进展，欢迎补充信息！

内容来源于stack exchange