ios - 拆分 View Controller 中的弹出 View Controller 类似于iMessage吗？

我有Split View controller.的申请
我想在某些特殊情况下（例如未注册用户）显示弹出视图控制器。
您可以在iPad的Apple Messages应用程序中看到此信息。
没有第三方控制器，有没有办法做到这一点？

编辑：我找到了解决方案：在情节提要中，用户可以在属性检查器的“模拟度量”部分中设置表单。

最佳答案

If you are using Storyboard.... if using nib replace storyboard with your nib file

 // Create and configure a new detail view controller appropriate for the selection.
            UIViewController *objViewController = [UINavigationController new];

            objViewController = [self.storyboard                                   instantiateViewControllerWithIdentifier:@"WelcomePopupNavigationController"];

            objViewController.modalPresentationStyle = UIModalPresentationFormSheet;
            objViewController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;

            [self presentViewController:objViewController animated:YES completion:nil];

            //it's good to do this after presentModalViewController, but not neccessary if you using form sheet size of your view controller
            objViewController.view.superview.frame = CGRectMake(0, 0, 540, 620);
            objViewController.view.superview.center = self.view.center;

// vKj