呈现 UINavigationController 多个深度视图，作为初始视图

发布于 2024-10-11 06:34:49 字数 303 浏览 2 评论 0原文

在我的应用程序中，我希望有一个初始屏幕，允许用户注册（基于网络的）服务。完成此操作后，他们将自动登录。这些屏幕将显示为 UINavigationController 中的视图，类似于：

1.Opening view > 2.Sign up view > 3.Logging in view > 4.Logged in view

注册后，下次启动应用程序时，应用程序应直接转到视图 3（记录在）。我将如何将这一观点呈现为最初的观点？（另一个问题 - 如果用户决定注销，我如何从视图 4 返回到视图 1？）

原文

In my app I would like to have an initial screen which allows the user to sign up for a (web-based) service. Once they have done this, they will automatically log in. These screens will be presented as views within a UINavigationController, something like:

1.Opening view > 2.Sign up view > 3.Logging in view > 4.Logged in view

Once they have signed up, the next time the app is launched, the app should go straight to view 3 (logging in). How would I present this view as the initial one?
(an additional question - how would I return to view 1 from view 4 if the user decides to log out?)

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你是我的挚爱i 2024-10-18 06:34:49

字面上的答案（“如何更改初始视图？”）将是更改您的应用程序委托：

-(BOOL)application:(UIApplication *)application
       didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

    if ( newuser )
    {
        [window addSubview:viewController1.view];
    } else {
        [window addSubview:viewController2.view];
    }
}

在您的 xib 文件中使用两个 UINavigationController。但这可能感觉有点不正统，并会引发其他问题。否则，通过让视图控制器 1 和 2 立即推送下一个控制器而不使用动画，立即推送整个视图控制器堆栈。

然后用户将只看到“登录视图”。如果您决定让用户从堆栈中弹出视图 4 和 3，则视图控制器 2 将出现。

您可以通过调用类似 [self.navigationController popToRootViewControllerAnimated:NO] 来弹出整个堆栈

The literal answer (to "how to change initial view?") would be to alter you app delegate:

-(BOOL)application:(UIApplication *)application
       didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

    if ( newuser )
    {
        [window addSubview:viewController1.view];
    } else {
        [window addSubview:viewController2.view];
    }
}

with two UINavigationControllers in your xib file. But this may feel a little unorthodox and give rise to other issues. Otherwise, instantly push the whole viewcontroller stack on it, by having your viewcontrollers 1 and 2 immediately push the next controllers without animation.

The user will then just see the "Logging in view". If you decide to let the user pop views 4 and 3 off the stack, viewcontroller 2 will appear.

You can pop the entire stack by calling something like [self.navigationController popToRootViewControllerAnimated:NO]

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