Does somebody know how to write Game Center invitation handling correctly? I cannot figure out the right syntax for this line:
GKMatchmaker.matchForInvite (Invitation:GKInvite!, completionHandler .....
Please help, I am stuck!
I know this is an old question but I just came across it and thought i'd offer my two cents.
this is how i implemented that function
GKMatchmaker.sharedMatchmaker().matchForInvite(invite, completionHandler: { (match: GKMatch!, error: NSError!) -> Void in
if error != nil {
// error out
}
if match != nil {
// success
}
})