C# 在TabbedPage Xamarin内使用NavigationPage时图像消失

我尝试在选项卡式页面中创建NavigationPage，这是我在app.xaml.cs中使用的第一个代码

    var tabbedPage = new Xamarin.Forms.TabbedPage();
    tabbedPage.On<Android>().SetToolbarPlacement(ToolbarPlacement.Bottom);
    tabbedPage.BarBackgroundColor = Color.White;
    tabbedPage.Children.Add(new MainPage()  { Title = "myTabName", Icon = "Icon.png" });
    tabbedPage.Children.Add(new MainPage() { Title = "myTabName", Icon = "Icon.png" });
    tabbedPage.Children.Add(new MainPage() { Title = "myTabName", Icon = "Icon.png" });
    tabbedPage.Children.Add(new MainPage() { Title = "myTabName", Icon = "Icon.png" });
    tabbedPage.Children.Add(new MainPage() { Title = "myTabName", Icon = "Icon.png" });
    MainPage = tabbedPage;

---

我的图标和标题消失。我不知道如何修复它

您应该在

导航页面上添加
图标
和
标题
：

tabbedPage.Children.Add(new NavigationPage(new MainPage()) { Title = "myTabName", Icon = "Icon.png" });

tabbedPage.Children.Add(new NavigationPage(new MainPage()) { Title = "myTabName", Icon = "Icon.png" });