public override void ViewDidLoad()
{
base.ViewDidLoad();
prepareViews();
prepareIndicatorView();
this.Bind(CloseButton.Tapped(), ViewModel.CloseButtonTapped);
this.Bind(FeedbackTextView.Text(), ViewModel.FeedbackText);
this.Bind(ErrorView.Tapped(), ViewModel.ErrorViewTapped);
this.Bind(SendButton.Tapped(), ViewModel.SendButtonTapped);
SendButton.TouchUpInside += (sender, args) => { FeedbackTextView.ResignFirstResponder(); };
this.Bind(ViewModel.IsFeedbackEmpty, FeedbackPlaceholderTextView.BindIsVisible());
this.Bind(ViewModel.ErrorViewVisible, ErrorView.BindAnimatedIsVisible());
this.Bind(ViewModel.SendEnabled, SendButton.BindEnabled());
this.Bind(ViewModel.IsLoading.Invert(), SendButton.BindIsVisible());
this.Bind(ViewModel.IsLoading, IndicatorView.BindIsVisible());
this.Bind(ViewModel.IsLoading, UIApplication.SharedApplication.BindNetworkActivityIndicatorVisible());
}