ios - ViewController Hierarchy - 从堆栈中移除 UISplitviewController

Question

我的应用有登录 View 、加载 View 、 Split View和菜单 View 。

启动时，初始 View 是登录 View 。当用户成功登录时，它会进入加载 View 。加载数据后，我会显示 Split View。在 Split View中，我有一个模态显示的菜单。菜单的选项之一是注销。当用户注销时，我想返回到登录 View 。到目前为止，还不错。

问题是，当我检查 View 层次结构时， Split View仍在登录 View 下方。理论上，用户可以通过这种方式创建具有无限数量的分层 View 的情况。

如何让用户返回登录 View 并关闭 Split View？

我正在使用 Storyboard和 segues 来获得 Split View。登录 View 推送到加载 View ，加载 View 推送到 Split View。我在自定义模态呈现 Controller 中呈现模态菜单。

Answer 1

            //VC1


            -(IBAction)button_click:(id)sender
            {
                UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
                ViewController2 *viewController2 = [storyboard instantiateViewControllerWithIdentifier:@"VC2"];

                [self.navigationController pushViewController:viewController2 animated:YES];
            }


            //VC2


            -(IBAction)button_click:(id)sender
            {

                UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
                ViewController3 *viewController3 = [storyboard instantiateViewControllerWithIdentifier:@"VC3"];

                [self.navigationController pushViewController:viewController3 animated:YES];

            }

            //VC3
    // In .h file
    @interface ViewController3 : UIViewController<ViewController4Delegate>

    -(IBAction)button_click:(id)sender;

    @end

         //In .m file   
            -(IBAction)button_click:(id)sender
            {
                UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
                ViewController4 *viewController4 = [storyboard instantiateViewControllerWithIdentifier:@"VC4"];

                viewController4.delegate=self;

                [self.navigationController presentViewController:viewController4 animated:YES completion:nil];
            }

            -(void)completed
            {
                [self.navigationController popToRootViewControllerAnimated:YES];
[self.parentViewController.parentViewController dismissViewControllerAnimated:YES completion:nil];
            }

            //VC4
            //In .h file
            @protocol  ViewController4Delegate

        -(void)completed;

        @end

        @interface ViewController4 : UIViewController

        -(IBAction)button_click:(id)sender;

        @property(nonatomic,weak) id <ViewController4Delegate> delegate

         //In.m file
            -(IBAction)button_click:(id)sender
            {


                [self dismissViewControllerAnimated:NO completion:^{

                    if(delegate)
                    {
                        [delegate completed];
                    }

                }];
            }