javax.microedition.lcdui
Interface CommandListener
- public interface CommandListener
This interface is used by applications which need to receive
high-level events from the implementation. An application will
provide an implementation of a CommandListener
(typically by using
a nested class or an inner class) and will then provide the
instance to the addCommand
method on a
Displayable
in
order to receive high-level events on that screen.
The specification does not require the platform to create several
threads for the event delivery.
Thus, if a CommandListener
method does not return
or the return is
not delayed, the system may be blocked. So, there is the following note to
application developers:
- the
CommandListener
method should return
immediately.
- Since:
- MIDP 1.0
- See Also:
Displayable.setCommandListener(javax.microedition.lcdui.CommandListener)
commandAction
public void commandAction(Command c,
Displayable d)
- Indicates that a command event has occurred on
Displayable d
.
- Parameters:
c
- a Command
object identifying the
command. This is either one of the
applications have been added to Displayable
with
addCommand(Command)
or is the implicit
SELECT_COMMAND
of
List
.d
- the Displayable
on which this event
has occurred
Submit a comment or suggestion Version 2.0 of MID Profile Specification
Java is a trademark or registered trademark of Sun Microsystems, Inc. in the US and other countries. Copyright (c) 1993-2002 Sun Microsystems, Inc. 901 San Antonio Road,Palo Alto, California, 94303, U.S.A. All Rights Reserved.