Post on personal Facebook wall using ios sdk and tag multiple friends at once..? - iphone

Question

I am trying to post a message on my wall and wanted to tag multiple users at a time in this post. I tried the various options on the FB post page but couldn't do it. May be I am not doing it right. Any help is appreciated and this is how I am doing it...
NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
#"Test 2",#"message",
#"100004311843201,1039844409", #"to",
nil];
[self.appDelegate.facebook requestWithGraphPath:#"me/feed" andParams:params andHttpMethod:#"POST" andDelegate:self];
I have also tried message_tags but that doesn't seem to work as well.

Answer 1

You would need to use Open Graph to tag people with a message. The me/feed Graph API endpoint doesn't support this.
Mentions Tagging
https://developers.facebook.com/docs/technical-guides/opengraph/mention-tagging/
Action Tagging:
https://developers.facebook.com/docs/technical-guides/opengraph/publish-action/
You can take a look at the Scrumptious sample app that comes included with the latest Facebook SDK for iOS to see how to do this.

Answer 2

To tag a friend in ur fb status ..you need "facebook id" of your friend by using FBFriendPickerViewController and "place id" using FBPlacePickerViewController. Following code will help you.
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];
}
}

Answer 3

If you followed the tutorial on how to setup Open Graph for iOS, you can do something like this if you use the friendsPickerController:
// Create an action
id<FBOpenGraphAction> action = (id<FBOpenGraphAction>)[FBGraphObject graphObject];
//Iterate over selected friends
if ([friendPickerController.selection count] > 0) {
NSMutableArray *temp = [NSMutableArray new];
for (id<FBGraphUser> user in self.friendPickerController.selection) {
NSLog(#"Friend selected: %#", user.name);
[temp addObject:[NSString stringWithFormat:#"%#", user.id]];
}
[action setTags:temp];
}
Basically, you can set an array of friend's ids on the "tags" property on an action