ICustomFocusAlgorithm is used to provide the custom keyboard focus algorithm for retrieving the next focusable view.
The application can implement the interface and override the keyboard focus behavior.
If the focus is changing within a layout container, then the layout container is queried first to provide the next focusable view.
If this does not provide a valid view, then the Keyboard FocusManager will check focusable properties to determine the next focusable actor.
If focusable properties are not set, then the keyboard FocusManager calls the GetNextFocusableView() method of this interface.
public interface ICustomFocusAlgorithm
GetNextFocusableView(View, View, View.FocusDirection)
Get the next focus actor.
View GetNextFocusableView(View current, View proposed, View.FocusDirection direction)
The current focus view.
The proposed focus view
The focus move direction
The next focus actor.