public HomePage ()
{
// setup your ViewModel
ViewModel = new HomePageViewModel
{
ButtonText = "Click Me!"
};
// Set the binding context to the newly created ViewModel
BindingContext = ViewModel;
// the button is what we're going to use to trigger a long running Async task
// we're also going to bind the button text so that we can see the binding in action
var actionButton = new Button();
actionButton.SetBinding(Button.TextProperty, "ButtonText");
actionButton.Clicked += async (sender, args) => await SomeLongRunningTaskAsync();
// here's your activity indicator, it's bound to the IsBusy property of the BaseViewModel
// those bindings are on both the visibility property as well as the IsRunning property
var activityIndicator = new ActivityIndicator
{
Color = Color.Black,
};
activityIndicator.SetBinding(ActivityIndicator.IsVisibleProperty, "IsBusy");
activityIndicator.SetBinding(ActivityIndicator.IsRunningProperty, "IsBusy");
// return the layout that includes all the above elements
Content = new StackLayout
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
BackgroundColor = Color.White,
Children = {actionButton, activityIndicator}
};
}
public HomePage()
{
// setup your ViewModel
ViewModel = new HomePageViewModel
{
ButtonText = "Click Me!"
};
// Set the binding context to the newly created ViewModel
BindingContext = ViewModel;
// the button is what we're going to use to trigger a long running Async task
// we're also going to bind the button text so that we can see the binding in action
var actionButton = new Button();
actionButton.SetBinding(Button.TextProperty, "ButtonText");
actionButton.Clicked += async(sender, args) => await SomeLongRunningTaskAsync();
// here's your activity indicator, it's bound to the IsBusy property of the BaseViewModel
// those bindings are on both the visibility property as well as the IsRunning property
var activityIndicator = new ActivityIndicator
{
Color = Color.Black,
};
activityIndicator.SetBinding(ActivityIndicator.IsVisibleProperty, "IsBusy");
activityIndicator.SetBinding(ActivityIndicator.IsRunningProperty, "IsBusy");
// return the layout that includes all the above elements
Content = new StackLayout
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
BackgroundColor = Color.White,
Children = { actionButton, activityIndicator }
};
}
