rsattar

// Say this is in your app delegate

- (void) attemptAutologin
{
    NSURL *autologinURL = ...some..url..that..does..autologin..on..your..server
    self.safariViewController = [[SFSafariViewController alloc] initWithURL:autologinURL];
    self.safariViewController.modalPresentationStyle = UIModalPresentationOverFullScreen;
    self.safariViewController.view.alpha = 0.0;
    [self.window.rootViewController presentViewController:self.safariViewController
                                                 animated:NO