title: Why Activity Indicator Not working In Xamarin.forms?
body: <p>I am trying to display <code>ActivityIndicator</code> After I press a button while I am trying to update The Column Field On DataBase, it is not appearing? What is the problem?</p>
  
  <p>On the following My Code: </p>
  
  <pre><code>ActivityIndicator ai = new ActivityIndicator()
              {
                  HorizontalOptions = LayoutOptions.CenterAndExpand,
                  Color = Color.Black
              };
              ai.IsRunning = true;
              ai.IsEnabled = true;
              ai.BindingContext = this;
              ai.SetBinding(ActivityIndicator.IsVisibleProperty, "IsBusy");
  
              ProcessToCheckOut = new Button { Text = "Set Inf" };
              ProcessToCheckOut.Clicked += (object sender, EventArgs e) =&gt;
              {
                  this.IsBusy = true;
                  UserUpdateRequest user=new UserUpdateRequest();
                  user.userId = CustomersPage.ID;
                  appClient.UpdateInfo(user);                  
                  this.IsBusy = false;
                  Navigation.PushAsync(new CheckoutShippingAddressPage(appClient));
              };
           Content = new StackLayout
              {
                  Children={
                  tb,
                  ai,
                  ProcessToCheckOut
                  }
              };
  </code></pre>