我正在进行第 5 步:连接 Getting Started with the Facebook SDK for iOS 的 App Delegate| .
我已按照说明将代码添加到 AppDelegate.m
文件中。但是,我收到以下错误消息:在代码为 application:application 的地方使用未声明的标识符“application”。
我想第二个“应用程序”必须用其他东西代替,但我不知道是什么。
这是当前在我的 AppDeleage.m
文件中的代码。该文件是使用 react-native init MyAppName
生成的,并按照 Facebook 的说明进行了修改。
/**
* 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 "RCTBundleURLProvider.h"
#import "RCTRootView.h"
#import <FBSDKCoreKit/FBSDKCoreKit.h>
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
NSURL *jsCodeLocation;
jsCodeLocation = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index.ios" fallbackResource:nil];
RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation
moduleName:@"myAppName"
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];
[[FBSDKApplicationDelegate sharedInstance] application:application
didFinishLaunchingWithOptions:launchOptions];
// Add any custom logic here.
return YES;
}
- (BOOL)application:(UIApplication *)app
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;
}
@end
最佳答案
在您的 application:openURL:options
实现中,参数名为 app
而不是 application
。
您可以将方法签名中的参数名称更改为application
:
- (BOOL)application:(UIApplication *)application
openURL:(NSURL *)url
options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options
或者你可以将调用FBSDKApplicationDelegate
方法时的参数更改为app
:
BOOL handled = [[FBSDKApplicationDelegate sharedInstance] application:app
openURL:url
sourceApplication:options[UIApplicationOpenURLOptionsSourceApplicationKey]
annotation:options[UIApplicationOpenURLOptionsAnnotationKey]];
关于ios - 在 React Native 初始化项目中为 iOS 设置 Facebook SDK 时使用未声明的标识符,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/40188418/