public override void ViewDidLoad()
{
base.ViewDidLoad();
View.BackgroundColor = Constants.R250G250B250;
View.ClipsToBounds = true;
LoadData();
SetBackButton();
SetupHistoryCollection();
_loader.ActivityIndicatorViewStyle = UIActivityIndicatorViewStyle.WhiteLarge;
_loader.HidesWhenStopped = true;
_loader.Color = UIColor.Black;
View.AddSubview(_loader);
_loader.AutoCenterInSuperview();
_historyCollection.Add(_refreshControl);
}