我在自定義表格視圖中有FB好友圖片和名稱。 如何獲取FB ID中的選定行並向多個朋友發送請求？

Question

我有單個FB ID，它不能進行多項選擇。我在FB好友列表中有自定義表格視圖。 如何獲取選定的行FB ID

NSMutableArray *arryOfFBIds;
for (id<FBGraphUser> user in self.friendPickerController.selection) {

    NSMutableArray *selection=(NSMutableArray *) self.friendPickerController.selection;
     [selection addObject:user.id];


    arryOfFBIds = [[NSMutableArray alloc] init];
    for (id<FBGraphUser> user in self.friendPickerController.selection)
    {
        [arryOfFBIds addObject:user.id ];





                NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    [defaults setObject: arryOfFBIds forKey: @"SelectedFBIds"];
    [defaults synchronize];
        NSLog(@"array of fb id:%@",arryOfFBIds);
    }}




NSMutableDictionary* params2 =   [NSMutableDictionary dictionaryWithObjectsAndKeys:@"Invite to on Ensmbl", @"description", @"http://placebogames.com/", @"link",
                                 // 3. Suggest friends the user may want to request, could be game context specific?
                                 [arryOfFBIds componentsJoinedByString:@","],@"to",  nil];
NSLog(@"qwer:%@",params2);



[FBWebDialogs presentFeedDialogModallyWithSession:[FBSession activeSession] parameters:params2  handler:^(FBWebDialogResult result, NSURL *resultURL, NSError *error)
{
     NSLog(@"error===>%@,resultURL===>%@",error,resultURL);
 } ];


}

Answer 1

查看下載的SDK源文件（可能安裝在My Documents文件夾中） - 其中一個示例源代碼稱為FriendPickerSample.xcodeproj

簡而言之，為了顯示朋友的表格視圖，FB iOS使用一個名為FPViewController的特殊自定義tableview控制器類，它繼承自UIViewController但具有allowsMultipleSelection屬性，如果設置為TRUE，則允許您選擇幾個朋友，直到您按下完成按鈕。

完成按鈕將觸發一個名為的委托方法

- (void)facebookViewControllerDoneWasPressed:(id)sender {
   NSMutableString *text = [[NSMutableString alloc] init];

   // we pick up the users from the selection, and create a string that we use to     update the text view
   // at the bottom of the display; note that self.selection is a property inherited     from our base class
   for (id<FBGraphUser> user in self.friendPickerController.selection) {
        if ([text length]) {
           [text appendString:@", "];
       }
      [text appendString:user.name];
   }

    [self fillTextBoxAndDismiss:text.length > 0 ? text : @"<None>"];     
}

只需使用示例代碼並進行修改，即可為所選朋友群做任何您想做的事情。