Interface FocusListener

  • All Known Implementing Classes:
    FocusAdapter

    public interface FocusListener
    Classes which implement this interface provide methods that deal with the events that are generated as controls gain and lose focus.

    After creating an instance of a class that implements this interface it can be added to a control using the addFocusListener method and removed using the removeFocusListener method. When a control gains or loses focus, the appropriate method will be invoked.

    See Also:
    FocusAdapter, FocusEvent
    • Method Detail

      • focusGained

        void focusGained​(FocusEvent event)
        Sent when a control gets focus.
        Parameters:
        event - an event containing information about the focus change
      • focusLost

        void focusLost​(FocusEvent event)
        Sent when a control loses focus.
        Parameters:
        event - an event containing information about the focus change