How to Trigger event Cancel Button on SearchBar Xamarin Form

Xamarin Form View Model can trigger the onTextChange Event for Searchbar but there is no Event handler for OnCancelButtonClicked.

What I want:

An Event should be Triggered whenever Cancel/Close Button is clicked as below.

You can get Searchbar CloseButton event in SearchBar custom render, but I think it is not useful for your goal.

I suggest you can click search icon to refresh data source. I don one sample using Searchbar and ListView, you can take a look:

[assembly: ExportRenderer(typeof(SearchBar), typeof(CustomSearchBarRenderer))]
namespace FormsSample.Droid
{
 public class CustomSearchBarRenderer: SearchBarRenderer
{
    public CustomSearchBarRenderer(Context context):base(context)
    {

    }
    protected override void OnElementChanged(ElementChangedEventArgs<SearchBar> e)
    {
        base.OnElementChanged(e);

        if (Control != null)
        {
            var searchView = Control;
            searchView.Iconified = true;
            searchView.SetIconifiedByDefault(false);
            int searchCloseButtonId = Context.Resources.GetIdentifier("android:id/search_close_btn", null, null);

           // search close button icon, you can add event for closeIcon.click.
            var closeIcon = searchView.FindViewById(searchCloseButtonId);

            int searchViewSearchButtonId = Control.Resources.GetIdentifier("android:id/search_mag_icon", null, null);
            var searchIcon = searchView.FindViewById(searchViewSearchButtonId);
            searchIcon.Click += SearchIcon_Click;
        }        
       
    }

    private void SearchIcon_Click(object sender, EventArgs e)
    {
        Element.OnSearchButtonPressed();
       
    }
  
}
 }



 <StackLayout>
        <SearchBar
            x:Name="searchBar"
            HorizontalOptions="Fill"
            Placeholder="Search fruits..."
            SearchButtonPressed="OnSearchButtonPressed"
            VerticalOptions="CenterAndExpand" />
        <Label
            HorizontalOptions="Fill"
            Text="Enter a search term and press enter or click the magnifying glass to perform a search."
            VerticalOptions="CenterAndExpand" />
        <ListView
            x:Name="searchResults"
            HorizontalOptions="Fill"
            VerticalOptions="CenterAndExpand" />
    </StackLayout>

 public partial class Page23 : ContentPage
{
    public Page23()
    {
        InitializeComponent();
        searchResults.ItemsSource = DataService.Fruits;
    }

    private void OnSearchButtonPressed(object sender, EventArgs e)
    {
        if(string.IsNullOrEmpty(searchBar.Text))
        {
            searchResults.ItemsSource = DataService.Fruits;
        }
        else
        {
            searchResults.ItemsSource = DataService.GetSearchResults(searchBar.Text);
        }
       
    }
}

You can click search closebutton to move text in SearchBar firstly, then click SearchButton to refresh data for listView.