Facebook iOS SDK - 獲取朋友列表

Question

使用Facebook iOS SDK，我如何獲得所有朋友的NSArray，並向他們發送邀請給我的應用程序？我特意尋找圖表路徑來獲得所有的朋友。

Answer 1

要獲取好友列表，你可以使用

https://graph.facebook.com/me/friends

[facebook requestWithGraphPath:@"me/friends" 
        andParams:nil 
        andDelegate:self]; 

爲了更多地瞭解所有可能的API，請閱讀

https://developers.facebook.com/docs/reference/api/

Answer 2

下面是一個更完整的解決方案：

在你的頭文件：

@interface myDelegate : NSObject <UIApplicationDelegate, FBSessionDelegate, FBRequestDelegate> { 
    Facebook *facebook; 
    UIWindow *window; 
    UINavigationController *navigationController; 

    NSArray *items; // to get facebook friends 
} 

@property (nonatomic, retain) IBOutlet UIWindow *window; 
@property (nonatomic, retain) IBOutlet UINavigationController *navigationController; 

@property (nonatomic, retain) Facebook *facebook; 
@property (nonatomic, retain) NSArray *items; 
@end 

然後在您的實現：

@implementation myDelegate 

@synthesize window; 
@synthesize navigationController; 
@synthesize facebook; 
@synthesize items; 

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

... 


    facebook = [[Facebook alloc] initWithAppId:@"YOUR_APP_ID_FROM_FACEBOOK" andDelegate:self]; 

    [facebook requestWithGraphPath:@"me/friends" andDelegate:self]; 

    return YES; 
} 

那麼你至少需要以下委託協議方法：

- (void)request:(FBRequest *)request didLoad:(id)result { 
    //ok so it's a dictionary with one element (key="data"), which is an array of dictionaries, each with "name" and "id" keys 
    items = [[(NSDictionary *)result objectForKey:@"data"]retain]; 
    for (int i=0; i<[items count]; i++) { 
     NSDictionary *friend = [items objectAtIndex:i]; 
     long long fbid = [[friend objectForKey:@"id"]longLongValue]; 
     NSString *name = [friend objectForKey:@"name"]; 
     NSLog(@"id: %lld - Name: %@", fbid, name); 
    } 
} 

Answer 3

與Facebook SDK 3.0，你可以做這個：

FBRequest* friendsRequest = [FBRequest requestForMyFriends]; 
[friendsRequest startWithCompletionHandler: ^(FBRequestConnection *connection, 
            NSDictionary* result, 
            NSError *error) { 
    NSArray* friends = [result objectForKey:@"data"]; 
    NSLog(@"Found: %lu friends", (unsigned long)friends.count); 
    for (NSDictionary<FBGraphUser>* friend in friends) { 
     NSLog(@"I have a friend named %@ with id %@", friend.name, friend.objectID); 
    } 
}]; 

Answer 4

也許這可以幫助

[FBRequestConnection startForMyFriendsWithCompletionHandler: 
^(FBRequestConnection *connection, id<FBGraphUser> friends, NSError *error) 
    { 
    if(!error){ 
     NSLog(@"results = %@", friends); 
    } 
    } 
]; 

Answer 5

與Facebook SDK 3.2 or above我們FBWebDialogs類的設施，打開裏面已經包含了朋友（s）列表的視圖。 Pick the friends和send invitations to all of them。 無需使用任何其他API調用。

Here我有簡要描述的分辨率步一步。

Answer 6

使用下面的函數異步讀取存儲在一個NSArray用戶的好友：

- (void)fetchFriends:(void(^)(NSArray *friends))callback 
{ 
    [FBRequestConnection startForMyFriendsWithCompletionHandler:^(FBRequestConnection *connection, id response, NSError *error) { 
     NSMutableArray *friends = [NSMutableArray new]; 
     if (!error) { 
      [friends addObjectsFromArray:(NSArray*)[response data]]; 
     } 
     callback(friends); 
    }]; 
} 

在代碼中，你可以使用它作爲這樣的：

[self fetchFriends:^(NSArray *friends) { 
    NSLog(@"%@", friends); 
}]; 

Answer 7

-(void)getFBFriends{ 

    NSDictionary *queryParam = 
    [NSDictionary dictionaryWithObjectsAndKeys:@"SELECT uid, sex,name,hometown_location,birthday, pic_square,pic_big FROM user WHERE uid = me()" 
    @"OR uid IN (SELECT uid2 FROM friend WHERE uid1 = me())", @"q", nil]; 
    // Make the API request that uses FQL 
    [FBRequestConnection startWithGraphPath:@"/fql" 
           parameters:queryParam 
           HTTPMethod:@"GET" 
          completionHandler:^(FBRequestConnection *connection, 
               id result, 
               NSError *error) { 
           if (error) {         
            NSLog(@"Error: %@", [error localizedDescription]); 
           } else { 
            NSDictionary *data=result; 
            //NSLog(@"the returned data of user is %@",data); 
            NSArray *dataArray=[data objectForKey:@"data"]; 
           //dataArray contains first user as self user and your friend list 

           } 
          }]; 
} 

Answer 8

(void)getFriendsListWithCompleteBlock:(void (^)(NSArray *, NSString *))completed{ 

if (!FBSession.activeSession.isOpen) 
{ 
    NSLog(@"permissions::%@",FBSession.activeSession.permissions); 

    // if the session is closed, then we open it here, and establish a handler for state changes 
    [FBSession openActiveSessionWithReadPermissions:@[@"basic_info", @"user_friends"] 
             allowLoginUI:YES 
            completionHandler:^(FBSession *session, 
                 FBSessionState state, 
                 NSError *error) { 
             if (error) 
             { 
              UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error" 
                           message:error.localizedDescription 
                          delegate:nil 
                        cancelButtonTitle:@"OK" 
                        otherButtonTitles:nil]; 
              [alertView show]; 
             } 
             else if (session.isOpen) 
             { 
              [self showWithStatus:@""]; 
              FBRequest *friendRequest = [FBRequest requestForGraphPath:@"me/friends?fields=name,picture,gender"]; 


               [friendRequest startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error) { 
                NSArray *data = [result objectForKey:@"data"]; 
                NSMutableArray *friendsList = [[NSMutableArray alloc] init]; 
                for (FBGraphObject<FBGraphUser> *friend in data) 
                { 
                 //NSLog(@"friend:%@", friend); 
                 NSDictionary *picture = [friend objectForKey:@"picture"]; 
                 NSDictionary *pictureData = [picture objectForKey:@"data"]; 
                 //NSLog(@"picture:%@", picture); 
                 FBData *fb = [[FBData alloc] 
                    initWithData:(NSString*)[friend objectForKey:@"name"] 
                    userID:(NSInteger)[[friend objectForKey:@"id"] integerValue] 
                    gender:(NSString*)[friend objectForKey:@"gender"] 
                    photoURL:(NSString*)[pictureData objectForKey:@"url"] 
                    photo:(UIImage*)nil 
                    isPhotoDownloaded:(BOOL)NO]; 
                 [friendsList addObject:fb]; 
                } 

                [self dismissStatus]; 
                if (completed) { 
                 completed(friendsList,@"I got it"); 
                } 
               }]; 


             } 
            }]; 
    } 
} 

Answer 9

這裏是一個Swift版本。

var friendsRequest : FBRequest = FBRequest.requestForMyFriends() 
friendsRequest.startWithCompletionHandler{(connection:FBRequestConnection!, result:AnyObject!, error:NSError!) -> Void in 
    let resultdict = result as NSDictionary 
    let friends : NSArray = resultdict.objectForKey("data") as NSArray 

    println("Found: \(friends.count) friends") 
    for friend in friends { 
     let id = friend.objectForKey("id") as String 
     println("I have a friend named \(friend.name) with id " + id) 
    } 
} 

Answer 10

//聲明在頭文件中的數組，其將持有的所有朋友名單 - 的NSMutableArray * m_allFriends;

//只分配和初始化數組一次 m_allFriends = [[NSMutableArray alloc] init];

隨着FB SDK 3.0及以上版本，你需要下面的函數調用API 2.0版本（圖API與我/朋友），以獲得FB朋友使用相同的應用程序列表。

//獲得其使用的應用程序

-(void) getMineFriends 
{ 
    [FBRequestConnection startWithGraphPath:@"me/friends" 
           parameters:nil 
           HTTPMethod:@"GET" 
          completionHandler:^(
               FBRequestConnection *connection, 
               id result, 
               NSError *error 
              ) { 
           NSLog(@"me/friends result=%@",result); 

           NSLog(@"me/friends error = %@", error.description); 

           NSArray *friendList = [result objectForKey:@"data"]; 

           [m_allFriends addObjectsFromArray: friendList]; 
          }]; 
} 

注意啦：1）通過上述查詢返回的朋友數量的缺省限制爲25 2）如果下一個鏈接進來結果，意味着有更多的朋友會在下一個查詢中提取，等等。 3）或者，您可以更改限制（減少限制，超過25的限制），並將其傳遞給param。

////////////////////////////////////////////// //////////////////////////

對於非應用程序的朋友 -

// m_invitableFriends - 全球陣列將舉行列表的invitable朋友

也得到你需要使用（/ ME/invitable_friends）和非應用的朋友如下 -

- (void) getAllInvitableFriends 
{ 
    NSMutableArray *tempFriendsList = [[NSMutableArray alloc] init]; 
    NSDictionary *limitParam = [NSDictionary dictionaryWithObjectsAndKeys:@"100", @"limit", nil]; 
    [self getAllInvitableFriendsFromFB:limitParam addInList:tempFriendsList]; 
} 

- (void) getAllInvitableFriendsFromFB:(NSDictionary*)parameters 
          addInList:(NSMutableArray *)tempFriendsList 
{ 
    [FBRequestConnection startWithGraphPath:@"/me/invitable_friends" 
           parameters:parameters 
           HTTPMethod:@"GET" 
          completionHandler:^(
               FBRequestConnection *connection, 
               id result, 
               NSError *error 
              ) { 
           NSLog(@"error=%@",error); 

           NSLog(@"result=%@",result); 

           NSArray *friendArray = [result objectForKey:@"data"]; 

           [tempFriendsList addObjectsFromArray:friendArray]; 

           NSDictionary *paging = [result objectForKey:@"paging"]; 
           NSString *next = nil; 
           next = [paging objectForKey:@"next"]; 
           if(next != nil) 
           { 
            NSDictionary *cursor = [paging objectForKey:@"cursors"]; 
            NSString *after = [cursor objectForKey:@"after"]; 
            //NSString *before = [cursor objectForKey:@"before"]; 
            NSDictionary *limitParam = [NSDictionary dictionaryWithObjectsAndKeys: 
                   @"100", @"limit", after, @"after" 
                   , nil 
                   ]; 
            [self getAllInvitableFriendsFromFB:limitParam addInList:tempFriendsList]; 
           } 
           else 
           { 
            [self replaceGlobalListWithRecentData:tempFriendsList]; 
           } 
          }]; 
} 

- (void) replaceGlobalListWithRecentData:(NSMutableArray *)tempFriendsList 
{ 
    // replace global from received list 
    [m_invitableFriends removeAllObjects]; 
    [m_invitableFriends addObjectsFromArray:tempFriendsList]; 
    //NSLog(@"friendsList = %d", [m_invitableFriends count]); 
    [tempFriendsList release]; 
} 

Answer 11

邀請非應用程序的朋友 -

你會被邀請與由我返回/ invitable_friends圖形API的朋友列表標記。您可以使用這些誠邀FBWebDialogs令牌將邀請發送給好友，下面

- (void) openFacebookFeedDialogForFriend:(NSString *)userInviteTokens { 

    NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys: 
            userInviteTokens, @"to", 
            nil, @"object_id", 
            @"send", @"action_type", 
            actionLinksStr, @"actions", 
            nil]; 

    [FBWebDialogs 
    presentRequestsDialogModallyWithSession:nil 
    message:@"Hi friend, I am playing game. Come and play this awesome game with me." 
    title:nil 
    parameters:params 
    handler:^(
       FBWebDialogResult result, 
       NSURL *url, 
       NSError *error) 
    { 
     if (error) { 
      // Error launching the dialog or sending the request. 
      NSLog(@"Error sending request : %@", error.description); 
     } 
     else 
     { 
      if (result == FBWebDialogResultDialogNotCompleted) 
      { 
       // User clicked the "x" icon 
       NSLog(@"User canceled request."); 
       NSLog(@"Friend post dialog not complete, error: %@", error.description); 
      } 
      else 
      { 
       NSDictionary *resultParams = [g_mainApp->m_appDelegate parseURLParams:[url query]]; 

       if (![resultParams valueForKey:@"request"]) 
       { 
        // User clicked the Cancel button 
        NSLog(@"User canceled request."); 
       } 
       else 
       { 
        NSString *requestID = [resultParams valueForKey:@"request"]; 

        // here you will get the fb id of the friend you invited, 
        // you can use this id to reward the sender when receiver accepts the request 

        NSLog(@"Feed post ID: %@", requestID); 
        NSLog(@"Friend post dialog complete: %@", url); 
       } 
      } 
     } 
    }]; 
}