Login in Facebook silently

Services 3rd-Party
1

Using native Facebook SDK I can try to login FB silently. It’s very useful when the user starts the game the next time he logged in Facebook, so you can avoid to show the login prompt. This is the piece of code that does it:

/**

  • Attempts to silently open the Facebook session if we have a valid token loaded (that perhaps needs a behind the scenes refresh).
  • After that attempt, we defer to the basic concept of the session being in one of the valid authorized states.
    */
  • (BOOL)isSessionValidAfterOpenAttempt {
    NSLog(@“FBSession.activeSession: %@”, FBSession.activeSession);
// If we don't have a cached token, a call to open here would cause UX for login to
// occur; we don't want that to happen unless the user clicks the login button over in Settings, and so
// we check here to make sure we have a token before calling open
if (FBSession.activeSession.state == FBSessionStateCreatedTokenLoaded) {
    NSLog(@"We have a cached token, so we're going to re-establish the login for the user.");
    // Even though we had a cached token, we need to login to make the session usable:
    [FBSession.activeSession openWithCompletionHandler:^(FBSession *session, FBSessionState status, NSError *error) {
        NSLog(@"Finished opening login session, with state: %d", (int)status);
    }];
}
else {
    NSLog(@"Active session wasn't in state 'FBSessionStateCreatedTokenLoaded'. It has state: %d", (int)FBSession.activeSession.state);
}

return [self isSessionValid];

}

Is there any way I could achieve this using sdkbox?

Thanks in advance.

2

The equivalence of your example using sdkbox would be something like this (this is c++, but it should be clear anyway):

sdkbox::PluginFacebook::init();

if (sdkbox::PluginFacebook::isLoggedIn())
{
  // we are logged in silently
}
else
{
  // a call to either login() or requestReadPermissions() will be needed, which will open the UI
}
3

Worked like a charm :slight_smile: Thank you.

1 Like
4

SDKBOX 1.3 fixed the silent login for Android, now you can do the same for android projects.