C# tabhost未在xamarin中显示选项卡

选项卡栏不工作

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/tabhost"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <RelativeLayout
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:clickable="true">
        <TabWidget
            android:id="@android:id/tabs"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" />
        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_above="@android:id/tabs" />
    </RelativeLayout>
</TabHost>

---

请帮助，谢谢。

我看不到您在哪里分配了

TabHost

。在上面的代码中，我分配了TabHost，您没有

TabHost

分配，比如

TabHost=blablabla任何地方。如果在任何演练中仔细查看，您必须使用
TabActivity
来获取您必须使用的代码片段。
public class tab_content : Activity
{
    protected override void OnCreate (Bundle bundle)
    {
        base.OnCreate (bundle);
        SetContentView (Resource.Layout.tabmenu);
        TabHost.TabSpec spec;     
        Intent intent;   
        intent = new Intent (this, typeof (rate1));
        intent.AddFlags (ActivityFlags.NewTask);
        // Initialize a TabSpec for each tab and add it to the TabHost
        spec = TabHost.NewTabSpec ("tab1");
        spec.SetIndicator ("Check In", Resources.GetDrawable (Resource.Drawable.ic_tab_artists));

        spec.SetContent (intent);
        TabHost.AddTab (spec);

        // Do the same for the other tabs
        intent = new Intent (this, typeof (rate2));
        intent.AddFlags (ActivityFlags.NewTask);
        spec = TabHost.NewTabSpec ("tab2");
        spec.SetIndicator ("Guest Room", Resources.GetDrawable (Resource.Drawable.ic_tab_artists));
        spec.SetContent (intent);

        TabHost.AddTab (spec);


        intent = new Intent (this, typeof ( rate3));
        intent.AddFlags (ActivityFlags.NewTask);
        spec = TabHost.NewTabSpec ("tab3");
        spec.SetIndicator ("Laundry and Valet", Resources.GetDrawable (Resource.Drawable.ic_tab_artists));
        spec.SetContent (intent);

        TabHost.AddTab (spec);

        TabHost.CurrentTab = 0;
    }
}