CustomItem is a Form component,
that has no predefined appearance or behaviour. All the properties are defined
entirely by the MIDlet programmer. Practically, CustomItems
are content area elements, where it is possible to add user interaction and
visual content. MIDlets can extend the CustomItem class
and provide necessary functionality like painting and focus handling.
Basically, a CustomItem can be considered as a
low-level container in an otherwise high-level UI environment. It can receive
low-level key events and include custom drawn graphics.
For more information about S60-specific CustomItem features,
see CustomItem implementation
notes.