windows-phone-7 – 如何在WP7应用程序上更改启动页面

<DefaultTask Name="_default" NavigationPage="DummyPage.xaml" />

现在,检测指向虚拟页面的所有导航,并重定向到您想要的任何页面.

为此,在App.xaml.cs文件中,在构造函数的末尾,订阅“导航”事件：

this.RootFrame.Navigating += this.RootFrame_Navigating;

在事件处理程序中,检测导航是否定向到虚拟页面,取消导航,并重定向到所需的页面：

void RootFrame_Navigating(object sender,NavigatingCancelEventArgs e)
{
    if (e.Uri.OriginalString == "/DummyPage.xaml")
    {
        e.Cancel = true;

        var navigationService = (NavigationService)sender;

        // Insert here your logic to load the destination page from the isolated storage
        string destinationPage = "/Page2.xaml";

        this.RootFrame.Dispatcher.BeginInvoke(() => navigationService.Navigate(new Uri(destinationPage,UriKind.Relative)));
    }
}

编辑

实际上,更容易.在app构造函数的最后,只需使用您想要的替换Uri设置UriMapper：

var mapper = new UriMapper();

mapper.UriMappings.Add(new UriMapping 
{ 
    Uri = new Uri("/DummyPage.xaml",UriKind.Relative),MappedUri = new Uri("/Page2.xaml",UriKind.Relative)
});

this.RootFrame.UriMapper = mapper;