See Also: UIActivity Members
The UIKit.UIActivityViewController can be used to send data to services such as social networks, email, SMS, etc. The operating system provides a number of these, such as UIActivityType.PostToFacebook, UIActivityType.Mail, and UIActivityType.Message.
You can create a new service by subclassing UIKit.UIActivity and, optionally, UIKit.UIActivityItemProvider. This service will only be available to your own application; there is no way to make for non-Apple developers to make a UIKit.UIActivity that is available across apps.
When subclassing, you should override the UIKIt.UIActivity.Image, UIKIt.UIActivity.Title, UIKIt.UIActivity.Type, UIKIt.UIActivity.Prepare and UIKIt.UIActivity.CanPerform.
c# Example
//
// Share an image
//
var imageToShare = UIImage.FromFile ("demo.png");
var activityItems = new NSObject[] { imageToShare };
var controller = new UIActivityViewController (activityItems, null);
this.PresentViewController(controller, true, null)
//
// Now share the image, but explicitly exclude posting as a message
//
controller = new UIActivityViewController (activityItems, null) {
ExcludedActivityTypes = new NSString[] {
UIActivityType.PostToWeibo,
UIActivityType.Message
}
};
this.PresentViewController(controller, true, null)