// declare an array in header file which will hold the list of all friends -
NSMutableArray * m_allFriends;
// alloc and initialize the array only once
m_allFriends = [[NSMutableArray alloc] init];
使用 FB SDK 3.0 和 2.0 以上的 API 版本，您需要调用以下函数（与我/朋友的图形 api）来获取使用相同应用程序的 FB 朋友列表。
// get friends which use the app
-(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 : 1) 上述查询返回的好友数量默认限制为 25。 2) 如果结果中有下一个链接，则表示您将在下一个查询中获取更多好友，依此类推. 3）或者，您可以更改限制（减少限制，超过 25 的限制）并在参数中传递。
////////////////////////////////////////////////////////////////////////
对于非应用好友 -
// m_invitableFriends - global array which will hold the list of invitable friends
还要获得非应用好友，您需要使用 (/me/invitable_friends) 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];
}
用于邀请非应用好友 -
您将获得带有我/invitable_friends graph api返回的朋友列表的邀请令牌。您可以将这些邀请令牌与 FBWebDialogs 一起使用，如下所示向朋友发送邀请
- (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);
}
}
}
}];
}