title: Navigating from Tabbed page to Content page it hides the tab, but I want that tabbed pages as it is on Content page
body: <p>I have 3 tabbed pages inside the Xamarin forms. Such as Tab1 Tab2 and Tab3.
  Inside the Tab1 having the 1 button click on this button click, I am opening the new page.</p>
  
  <pre><code>[XamlCompilation(XamlCompilationOptions.Compile)]
          public partial class MyTabbedpage: TabbedPage
          {
              public MyTabbedpage()
              {
                  InitializeComponent();
  
              }
       private void Button_Clicked(object sender, EventArgs e)
              {
             Navigation.PushAsync(new MyContentPage());
              }
          }
  
  &lt;?xml version="1.0" encoding="utf-8" ?&gt;
  &lt;TabbedPage xmlns="http://xamarin.com/schemas/2014/forms"
               xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
               x:Class="MyTabbedpage"
              &gt;
      &lt;ContentPage x:Name="MySchedule" Title="Tab1" Icon="Calender.png"&gt;
          &lt;StackLayout&gt;
              &lt;Button Clicked="Button_Clicked" Text="Test"&gt;&lt;/Button&gt;
          &lt;/StackLayout&gt;
      &lt;/ContentPage&gt;
      &lt;ContentPage x:Name="Submission" Title="Tab2"&gt;
          &lt;StackLayout&gt;
  
              &lt;/ListView&gt;
          &lt;/StackLayout&gt;
      &lt;/ContentPage&gt;
      &lt;ContentPage x:Name="Code" Title="Tab3"&gt;
  
      &lt;/ContentPage&gt;
  &lt;/TabbedPage
  </code></pre>
  
  <p>While clicking on the button it navigates me on MyContentPage. at that time my tab page is hidden bcoz I am navigating to the new page. But I want that Tabbed pages as it is on MyContentPage. 
  How Can I do this?</p>