c# - 如何在 Windows Phone 8 项目中使用 Monogame 浏览 xaml 页面？

Question

我完成了 XNA 游戏的开发，然后创建了 Monogame 项目，并在我的设备上对其进行了测试。现在我制作了一些其他页面，例如“关于”页面。考虑到我有一个 Monogame 项目而只有一个 XNA 代码，我如何才能转到该页面？特别是在我的游戏中，我制作了一个主菜单，您可以在其中单击“关于”按钮并知道是否有人单击:我如何将该事件链接到“转到 about.xaml”功能？

在 XNA 内部，更新方法:

if (about_button.IsClicked())
{
    // Go to about.xaml
}

我试过:

   if (about_button.IsClicked())
    {
         ((PhoneApplicationFrame)Application.Current.RootVisual).Navigate(new Uri("/About.xaml", UriKind.Relative));
    }

但它抛出:System.UnauthorizedAccessException

Answer 1

我自己还没有尝试过，但是 WP 框架有 Window.Current.Content 对象，您可以使用它来加载不同的 View 。

例如:

// Create a Frame to act navigation context and navigate to the first page
var rootFrame = new Frame();
rootFrame.Navigate(typeof(BlankPage));

// Place the frame in the current Window and ensure that it is active
Window.Current.Content = rootFrame;
Window.Current.Activate();

因此，如果您使用的是 Windows Phone 8 项目模板，您可以使用该对象轻松告诉应用程序加载 xaml View 或游戏 View 。

您还可以在 this site 上查看如何使用 WinRT 和 monogame 进行操作(Window.Current 是 WP 和 WinRT 框架的一部分)。在这里，您将了解如何集成这两个框架以使用 WinRT xaml View 创建单一游戏:)

有关 Window.Current 的更多信息，请查看 this link .

编辑

如果您使用 monogame for windows phone 模板，您的项目中应该已经存在一个 XAML 页面，用于加载游戏本身，以及用于视频和声音播放的媒体元素。

该页面称为“GamePage.xaml”，您可以将其用于导航目的。

此信息取自 Adam Dawes 所著的“Windows 8 and Windows Phone 8 Game Development”一书(第 13 章)。

In the case of the Windows Phone projects, GamePage is implemented as a normal page. [...] Within the Windows Phone page is a full-page Grid control, inside which is another full-screen control of type DrawingSurface. This is a type of control that DirectX can use to render graphics to a Windows Phone page. Our XAML content can also be placed into the Grid. A MediaElement control is present within the Grid, too. MonoGame uses this for some of its audio playback functionality.

On both platforms, the way that XAML and DirectX have been designed to interact is that the DirectX rendering is processed first. Once this has been completed, the XAML renderer then takes control and adds its content as a second step, prior to presenting the final rendered page to the user. As a result, XAML content will always appear in front of any graphics rendered by MonoGame. This ensures that any XAML controls we use as our user interface (for control buttons, text displays, and so on) will appear unobstructed in front of the game graphics.

The XAML rendering still takes any transparency within the controls into account, so it is quite possible to have controls that are partially transparent or that use alpha shading. These will blend in front of the MonoGame graphics, as you would expect them to.

考虑到这一点，您应该能够从您的游戏类 (monogame) 中抛出一个事件，xaml 页面可以将自己订阅到它，然后在捕获时呈现您的 xaml 页面(也许用户控件会更明智因为您不会离开主游戏页面)。

希望这能帮助您解决问题。