added OnEnd()

TYTD.Api/MyClass.cs

@@ -39,6 +39,10 @@ namespace TYTD
         public virtual void SetProgress(double progress)
         {
 
+        }
+        public virtual void OnEnd()
+        {
+
         }
                 public bool TimerEnabled { get { if (t != null) { return t.Enabled; } else { return false; } } set { if (t != null) { t.Enabled = value; } } }
         public virtual IEnumerable<KeyValuePair<string, string>> GetUrls()
@@ -85,6 +89,7 @@ namespace TYTD
             {
                 t.Dispose();
             }
+            OnEnd();
         }
     }