ios - 错误 : missing context for method declaration with FB SDK on react native

Question

我认为很容易找到类似的问题，但由于 fb 在他们的 github 上没有问题，不......

我严格按照此处的说明操作:https://developers.facebook.com/docs/ios/getting-started

但它利用了这个错误，它清楚地表明@end 之后的内容是一个问题。我知道我在编译器范围之外声明方法，但由于 FB 并没有真正充满这方面的信息，我不知道该怎么做。

/Users/Jean/dev/mysuperapp/ios/mysuperapp/AppDelegate.m:82:1: error: missing context for method declaration
- (BOOL)application:(UIApplication *)application 
^
/Users/Jean/dev/mysuperapp/ios/mysuperapp/AppDelegate.m:91:1: error: missing context for method declaration
- (BOOL)application:(UIApplication *)application 
^
/Users/Jean/dev/mysuperapp/ios/mysuperapp/AppDelegate.m:106:1: error: missing context for method declaration
- (void)applicationDidBecomeActive:(UIApplication *)application {
^
3 errors generated.

我发现了这个类似的问题，它说那是因为 FBSDK 的代码在 @end 之后，这看起来很明显。但是，如果我将代码移动到 @end 之前，编译器会提示缺少 @end...

Missing context for method declaration

我确定这只是关于了解编译器的工作原理，但我坚持这一点。我根本不懂 Objective-C，我对这个错误很困惑。

整个文件:

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/

#import "AppDelegate.h"
#import <CodePush/CodePush.h>

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

#import "RNFIRMessaging.h"

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
  NSURL *jsCodeLocation;


  #ifdef DEBUG
  jsCodeLocation = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index" fallbackResource:nil];
  #else
  jsCodeLocation = [CodePush bundleURL];
  #endif

  RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation
  moduleName:@"cupido"
  initialProperties:nil
  launchOptions:launchOptions];
  rootView.backgroundColor = [[UIColor alloc] initWithRed:1.0f green:1.0f blue:1.0f alpha:1];

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

  // Added for FCM
  [FIRApp configure];
  [[UNUserNotificationCenter currentNotificationCenter] setDelegate:self];

  return YES;
}

- (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler
{
  [RNFIRMessaging willPresentNotification:notification withCompletionHandler:completionHandler];
}

#if defined(__IPHONE_11_0)
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)(void))completionHandler
{
  [RNFIRMessaging didReceiveNotificationResponse:response withCompletionHandler:completionHandler];
}
#else
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void(^)())completionHandler
{
  [RNFIRMessaging didReceiveNotificationResponse:response withCompletionHandler:completionHandler];
}
#endif

//You can skip this method if you don't want to use local notification
-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
  [RNFIRMessaging didReceiveLocalNotification:notification];
}

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(nonnull NSDictionary *)userInfo fetchCompletionHandler:(nonnull void (^)(UIBackgroundFetchResult))completionHandler{
  [RNFIRMessaging didReceiveRemoteNotification:userInfo fetchCompletionHandler:completionHandler];
}


@end

//  AppDelegate.m
#import <FBSDKCoreKit/FBSDKCoreKit.h>

- (BOOL)application:(UIApplication *)application 
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

  [[FBSDKApplicationDelegate sharedInstance] application:application
  didFinishLaunchingWithOptions:launchOptions];
  // Add any custom logic here.
  return YES;
}

- (BOOL)application:(UIApplication *)application 
openURL:(NSURL *)url 
options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options {

  BOOL handled = [[FBSDKApplicationDelegate sharedInstance] application:application
  openURL:url
  sourceApplication:options[UIApplicationOpenURLOptionsSourceApplicationKey]
  annotation:options[UIApplicationOpenURLOptionsAnnotationKey]
  ];
  // Add any custom logic here.
  return handled;
}

//  AppDelegate.m
#import <FBSDKCoreKit/FBSDKCoreKit.h>
- (void)applicationDidBecomeActive:(UIApplication *)application {
  [FBSDKAppEvents activateApp];
}

Answer 1

你能这样试试吗？:

指令中的代码应该放在@implementation AppDelegate和@end之间。

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/

#import "AppDelegate.h"
#import <CodePush/CodePush.h>

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

#import "RNFIRMessaging.h"

#import <FBSDKCoreKit/FBSDKCoreKit.h>

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
  NSURL *jsCodeLocation;


  #ifdef DEBUG
  jsCodeLocation = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index" fallbackResource:nil];
  #else
  jsCodeLocation = [CodePush bundleURL];
  #endif

  RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation
  moduleName:@"cupido"
  initialProperties:nil
  launchOptions:launchOptions];
  rootView.backgroundColor = [[UIColor alloc] initWithRed:1.0f green:1.0f blue:1.0f alpha:1];

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

  // Added for FCM
  [FIRApp configure];
  [[UNUserNotificationCenter currentNotificationCenter] setDelegate:self];

  [[FBSDKApplicationDelegate sharedInstance] application:application
  didFinishLaunchingWithOptions:launchOptions];

  return YES;
}

- (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler
{
  [RNFIRMessaging willPresentNotification:notification withCompletionHandler:completionHandler];
}

#if defined(__IPHONE_11_0)
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)(void))completionHandler
{
  [RNFIRMessaging didReceiveNotificationResponse:response withCompletionHandler:completionHandler];
}
#else
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void(^)())completionHandler
{
  [RNFIRMessaging didReceiveNotificationResponse:response withCompletionHandler:completionHandler];
}
#endif

//You can skip this method if you don't want to use local notification
-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
  [RNFIRMessaging didReceiveLocalNotification:notification];
}

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(nonnull NSDictionary *)userInfo fetchCompletionHandler:(nonnull void (^)(UIBackgroundFetchResult))completionHandler{
  [RNFIRMessaging didReceiveRemoteNotification:userInfo fetchCompletionHandler:completionHandler];
}

- (BOOL)application:(UIApplication *)application 
openURL:(NSURL *)url 
options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options {

  BOOL handled = [[FBSDKApplicationDelegate sharedInstance] application:application
  openURL:url
  sourceApplication:options[UIApplicationOpenURLOptionsSourceApplicationKey]
  annotation:options[UIApplicationOpenURLOptionsAnnotationKey]
  ];
  // Add any custom logic here.
  return handled;
}

- (void)applicationDidBecomeActive:(UIApplication *)application {
  [FBSDKAppEvents activateApp];
}

@end