title: how to add picker in toolbar in xamarin forms
body: <p>i want to add picker for dropdownn options in tool bar..right now I have added labels like this</p>
  
  <pre><code>&lt;ContentPage.ToolbarItems&gt;
    &lt;ToolbarItem Order="Secondary" Priority="1" Name="Approval V" /&gt;  
    &lt;ToolbarItem Order="Primary" Priority="1" Name="sort"/&gt;
  &lt;/ContentPage.ToolbarItems&gt;
  </code></pre>
  
  <p>but I don't find any solution to put picker here..Please give me some suggestion..</p>