ios 新版本 facebook SDK 分享方法

管理的例子挺好的。

官方的登录文档地址https://developers.facebook.com/ios/login-ui-control/

使用方法

第一步添加appid

在info.plist中添加FacebookAppID

第二步添加loginview。facebook已经为用户做好了登录的方法

facebook的登录有3种

1：ios6以上自带的登录

2：facebook 原生程序登录

3：网页登录

    FBLoginView *loginview = [[FBLoginView alloc] init];
    
    loginview.frame = CGRectOffset(loginview.frame, 5, 5);
    loginview.delegate = self;
    
    [self.view addSubview:loginview];
    
    [loginview sizeToFit];

如果没有1，和2.使用页面登录时候。

需要添加url schema 中添加fb+appid

appdelegate.m中添加

- (BOOL)application:(UIApplication *)application
            openURL:(NSURL *)url
  sourceApplication:(NSString *)sourceApplication
         annotation:(id)annotation {
    // attempt to extract a token from the url
    return [FBAppCall handleOpenURL:url
                  sourceApplication:sourceApplication
                    fallbackHandler:^(FBAppCall *call) {
                        NSLog(@"In fallback handler");
                    }];
}

下面处理loginview的回调方法

- (void)loginViewShowingLoggedInUser:(FBLoginView *)loginView;

- (void)loginViewFetchedUserInfo:(FBLoginView *)loginView
                            user:(id<FBGraphUser>)user;

- (void)loginViewShowingLoggedOutUser:(FBLoginView *)loginView;

- (void)loginView:(FBLoginView *)loginView
      handleError:(NSError *)error;

1登录。

2收到用户信息

3退出

4：登录异常

登录以后发送消息

// Post Status Update button handler; will attempt different approaches depending upon configuration.
- (IBAction)postStatusUpdateClick:(UIButton *)sender {
    // Post a status update to the user's feed via the Graph API, and display an alert view
    // with the results or an error.
    
    NSURL *urlToShare = [NSURL URLWithString:@"http://developers.facebook.com/ios"];
    
    // This code demonstrates 3 different ways of sharing using the Facebook SDK.
    // The first method tries to share via the Facebook app. This allows sharing without
    // the user having to authorize your app, and is available as long as the user has the
    // correct Facebook app installed. This publish will result in a fast-app-switch to the
    // Facebook app.
    // The second method tries to share via Facebook's iOS6 integration, which also
    // allows sharing without the user having to authorize your app, and is available as
    // long as the user has linked their Facebook account with iOS6. This publish will
    // result in a popup iOS6 dialog.
    // The third method tries to share via a Graph API request. This does require the user
    // to authorize your app. They must also grant your app publish permissions. This
    // allows the app to publish without any user interaction.
    
    // If it is available, we will first try to post using the share dialog in the Facebook app
    FBAppCall *appCall = [FBDialogs presentShareDialogWithLink:urlToShare
                                                          name:@"Hello Facebook"
                                                       caption:nil
                                                   description:@"The 'Hello Facebook' sample application showcases simple Facebook integration."
                                                       picture:nil
                                                   clientState:nil
                                                       handler:^(FBAppCall *call, NSDictionary *results, NSError *error) {
                                                           if (error) {
                                                               NSLog(@"Error: %@", error.description);
                                                           } else {
                                                               NSLog(@"Success!");
                                                           }
                                                       }];
    
    if (!appCall) {
        // Next try to post using Facebook's iOS6 integration
        BOOL displayedNativeDialog = [FBDialogs presentOSIntegratedShareDialogModallyFrom:self
                                                                              initialText:nil
                                                                                    image:nil
                                                                                      url:urlToShare
                                                                                  handler:nil];
        
        if (!displayedNativeDialog) {
            // Lastly, fall back on a request for permissions and a direct post using the Graph API
            [self performPublishAction:^{
                NSString *message = [NSString stringWithFormat:@"Updating status for %@ at %@", self.loggedInUser.first_name, [NSDate date]];
                
                FBRequestConnection *connection = [[FBRequestConnection alloc] init];
                
                connection.errorBehavior = FBRequestConnectionErrorBehaviorReconnectSession
                                         | FBRequestConnectionErrorBehaviorAlertUser
                                         | FBRequestConnectionErrorBehaviorRetry;
                
                [connection addRequest:[FBRequest requestForPostStatusUpdate:message]
                     completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                         
                                        [self showAlert:message result:result error:error];
                                        self.buttonPostStatus.enabled = YES;
                }];
                [connection start];
                
                self.buttonPostStatus.enabled = NO;
            }];
        }
    }
}

以上是官方给的代码