using System; using Android.App; using Android.Content; using Android.Runtime; using Android.Views; using Android.Widget; using Android.OS;  namespace Hello_World { 	[Activity (Label = "Hello_World", MainLauncher = true)] 	public class MainActivity : Activity 	{ 		int count = 1;  		protected override void OnCreate (Bundle bundle) 		{ 			base.OnCreate (bundle);  			// Set our view from the "main" layout resource 			SetContentView (Resource.Layout.Main);  			// Get our button from the layout resource, 			// and attach an event to it 			Button button = FindViewById<Button> (Resource.Id.myButton); 			 			button.Click += delegate { 				button.Text = string.Format ("{0} clicks!", count++); 			}; 		} 	} }