要在您的 fb 状态中标记朋友..您需要使用 FBFriendPickerViewController 的朋友的“facebook id”和使用 FBPlacePickerViewController 的“place id”。以下代码将为您提供帮助。
NSString *apiPath = nil;
apiPath = @"me/feed";
if(![self.selectedPlaceID isEqualToString:@""]) {
    [params setObject:_selectedPlaceID forKey:@"place"];
}
NSString *tag  = nil;
if(mSelectedFriends != nil){
    for (NSDictionary *user in mSelectedFriends) {
        tag = [[NSString alloc] initWithFormat:@"%@",[user objectForKey:@"id"] ];
        [tags addObject:tag];
    }
    NSString *friendIdsSeparation=[tags componentsJoinedByString:@","];
    NSString *friendIds = [[NSString alloc] initWithFormat:@"[%@]",friendIdsSeparation ];
    [params setObject:friendIds forKey:@"tags"];
}
FBRequest *request = [[[FBRequest alloc] initWithSession:_fbSession graphPath:apiPath parameters:params HTTPMethod:@"POST"] autorelease];
[request startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
    [SVProgressHUD dismiss];
    if (error) {
        NSLog(@"Error ===== %@",error.description);
        if (_delegate != nil) {
            [_delegate facebookConnectFail:error requestType:FBRequestTypePostOnWall];
        }else{
            NSLog(@"Error ===== %@",error.description);
        }
    }else{
        if (_delegate != nil) {
            [_delegate faceboookConnectSuccess:self requestType:FBRequestTypePostOnWall];
        }
    }