protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
viewModel = new ImageSearchViewModel();
//Setup RecyclerView
adapter = new ImageAdapter(this, viewModel);
recyclerView = FindViewById <RecyclerView>(Resource.Id.recyclerView);
recyclerView.SetAdapter(adapter);
layoutManager = new GridLayoutManager(this, 2);
recyclerView.SetLayoutManager(layoutManager);
progressBar = FindViewById <ProgressBar>(Resource.Id.my_progress);
progressBar.Visibility = ViewStates.Gone;
var query = FindViewById <EditText>(Resource.Id.my_query);
var clickButton = FindViewById <Button>(Resource.Id.my_button);
clickButton.Click += async(sender, e) =>
{
clickButton.Enabled = false;
progressBar.Visibility = ViewStates.Visible;
await viewModel.SearchForImagesAsync(query.Text.Trim());
clickButton.Enabled = true;
progressBar.Visibility = ViewStates.Gone;
};
//DEMO: 2b - Image Analysis
//Button Click event to get images
adapter.ItemClick += async(object sender, ImageAdapterClickEventArgs e) =>
{
clickButton.Enabled = false;
progressBar.Visibility = ViewStates.Visible;
var result = await viewModel.GetImageDescription(viewModel.Images[e.Position].ImageLink);
new AlertDialog.Builder(this)
.SetTitle("Image Analysis")
.SetMessage(result)
.SetNeutralButton("OK", delegate { })
.Show();
progressBar.Visibility = ViewStates.Gone;
clickButton.Enabled = true;
};
UserDialogs.Init(this);
SupportActionBar.SetDisplayHomeAsUpEnabled(false);
SupportActionBar.SetHomeButtonEnabled(false);
}
public async void ItemSelected(UICollectionView collectionView, NSIndexPath indexPath)
{
ActivityIsLoading.StartAnimating();
string description = await viewModel.GetImageDescription(viewModel.Images[indexPath.Row].ImageLink);
var resultAlert = UIAlertController.Create("Image Analysis", description, UIAlertControllerStyle.Alert);
resultAlert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(resultAlert, true, null);
ActivityIsLoading.StopAnimating();
}