title: Windows Phone 8.1 PickerFlyout (TimeSpanPicker)
body: <p>I need TimeSpanPicker (not TimePicker) in my Windows Phone 8.1 App..
  All toolkits contains TimeSpanPicker working only on Windows Phone 8..</p>
  
  <p>I search into new 8.1 API and I found PickerFlyout but i cant customize it, has anyone idea how can I do this?</p>
  
  <p>I fount this code:</p>
  
  <pre><code>var pf = new PickerFlyout();
  var tb = new TextBlock { Text = "my flyout textblock", FontSize = 20 };
  pf.Content = tb;
  pf.ConfirmationButtonsVisible = true;
  await pf.ShowAtAsync(targetFrameWorkElement);
  </code></pre>