private async void OnTextChanged(object sender, EventArgs e)
        {
            try
            {
                message.IsVisible           = false;
                list.IsVisible              = false;
                activityIndicator.IsRunning = true;
                await _collectionView.SearchAsync(search.Text);

                list.IsVisible = true;
            }
            catch
            {
                message.Text      = AppResources.InternetConnectionError;
                message.IsVisible = true;
            }
            finally
            {
                activityIndicator.IsRunning = false;
            }
        }
 private async void OnTextChanged(object sender, Android.Text.TextChangedEventArgs e)
 {
     await _collectionView.SearchAsync(Search.Text);
 }
 private async void OnSearchChanged(object sender, EventArgs e)
 {
     await _collectionView.SearchAsync(SearchField.StringValue);
 }
 private async void OnSearchEditingChanged(object sender, EventArgs e)
 {
     await _collectionView.SearchAsync(SearchField.Text);
 }