ReactiveTabbedPage设置子视图以导航到

Question

我正在使用ReactiveTabbedPage'HomeTabbedPage'，它具有4个视图，如图所示

<rxui:ReactiveTabbedPage x:Class="HomeTabbedPage"
xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:rxui="clr-namespace:ReactiveUI.XamForms;assembly=ReactiveUI.XamForms"
xmlns:views="clr-namespace:MeasuringPoint.Views;assembly=MeasuringPoint"
xmlns:controls="clr-namespace:MeasuringPoint.Controls;assembly=MeasuringPoint"
xmlns:resx="clr-namespace:MeasuringPoint.Resources;assembly=MeasuringPoint"
xmlns:page="clr-namespace:MeasuringPoint.Pages"
xmlns:vms="clr-namespace:MeasuringPoint.ViewModels"
x:TypeArguments="vms:HomeTabbedViewModel" BackgroundColor="White">

<views:CreateView x:Name="createView" Title="Create"/>
<views:HistoryView x:Name="historyView" Title="History"/>
<views:SyncView x:Name="syncView" Title="Sync"/>
<views:SettingsView x:Name="settingsView" Title="Settings" />  
</rxui:ReactiveTabbedPage>

默认情况下，Createview是显示的那个。我需要导航到另一个“页面”，然后返回另一个子视图“ SettingsView”

如果我打电话

HostScreen
            .Router
            .Navigate
            .Execute(new SettingsViewModel())
            .Subscribe();

显示设置视图，但选项卡消失。

如果我可以导航回HomeTabbedPage

HostScreen
            .Router
            .Navigate
            .Execute(new HomeTabbedViewModel())
            .Subscribe();

然后将显示CreateView。

我在这里想念东西吗？