private async void searchBarTextChanged(object sender, TextChangedEventArgs e)
{
SearchBar searchBar = (SearchBar)sender;
CollectionViewSampleViewModel viewModel = (BindingContext as CollectionViewSampleViewModel);
// If iOS Clear
if (searchBar.SearchCommandParameter != null)
{
// If Android Clear
if (!string.IsNullOrEmpty(searchBar.SearchCommandParameter.ToString()))
{
await viewModel.ExecuteOnPerformSearchCommandAsync(searchBar);
}
else
{
if (viewModel.IsAndroid)
{
Device.BeginInvokeOnMainThread(() =>
{
searchBar.Unfocus();
});
}
await viewModel.ExecuteOnPerformSearchCommandAsync(searchBar);
}
}
else
{
searchBar.SearchCommandParameter = "";
searchBar.Text = "";
}
}
public void ShouldPerformSearchCommandMarkRetrieveSearchResults()
{
//arrange
viewModel = new CollectionViewSampleViewModel(DataManager);
PopularBrandsViewModel popularBrandsViewModel = new PopularBrandsViewModel();
//act
Task.Run(async() =>
{
await viewModel.LoadData();
}).GetAwaiter().GetResult();
popularBrandsViewModel = viewModel.PopularBrands.FirstOrDefault();
Task.Run(async() =>
{
await viewModel.ExecuteOnPerformSearchCommandAsync(popularBrandsViewModel.ItemTitle);
}).GetAwaiter().GetResult();
var searchResults = new ObservableCollection <PopularBrandsViewModel>(
viewModel.PopularBrandsFromServer.Where(x => x.ItemTitle.ToUpper().Contains(popularBrandsViewModel.ItemTitle.ToUpper()) ||
x.Text.ToUpper().Contains(popularBrandsViewModel.ItemTitle.ToUpper())));
IEnumerable <PopularBrandsViewModel> differences = viewModel.PopularBrands.Except(searchResults);
//assert
Assert.AreEqual(searchResults.Count, viewModel.PopularBrands.Count);
Assert.AreEqual(0, differences.Count());
}