Lists and Forms - Beginning J2ME: From Novice to Professional - page 66

(a) (b)

Figure 6-1. List types: (a) EXCLUSIVE and (b) MULTIPLE

Figure 6-2. IMPLICIT lists combine selection and confirmation.

Event Handling for IMPLICIT Lists
When the user makes a selection in an IMPLICIT list , the commandAction() method of the list 's
CommandListener is invoked. A special value is passed to commandAction() as the Command parameter:

public static final Command SELECT_COMMAND

For example, you can test the source of command events like this:

public void commandAction(Command c, Displayable s) {
if (c == nextCommand)
// ...
else if (c == List.SELECT_COMMAND)
// ...
}