如何在用戶會話打開時獲取用戶名。我嘗試了Facebook sdk示例中的會話登錄示例。如果有人知道解決方案,請幫助我。 在此先感謝。如何從iOS中的Facebook SDK獲取用戶信息?
- (IBAction)buttonClickHandler:(id)sender {
// get the app delegate so that we can access the session property
SLAppDelegate *appDelegate = [[UIApplication sharedApplication]delegate];
// this button's job is to flip-flop the session from open to closed
if (appDelegate.session.isOpen) {
// if a user logs out explicitly, we delete any cached token information, and next
// time they run the applicaiton they will be presented with log in UX again; most
// users will simply close the app or switch away, without logging out; this will
// cause the implicit cached-token login to occur on next launch of the application
//hear i need to fetch user name ?
[appDelegate.session closeAndClearTokenInformation];
} else {
if (appDelegate.session.state != FBSessionStateCreated) {
// Create a new, logged out session.
appDelegate.session = [[FBSession alloc] init];
}
// if the session isn't open, let's open it now and present the login UX to the user
[appDelegate.session openWithCompletionHandler:^(FBSession *session,
FBSessionState status,
NSError *error) {
// and here we make sure to update our UX according to the new session state
[self updateView];
}];
}
}
https://developers.facebook.com/docs/ios/graph –