Name
javax.microedition.lcdui.Command
Synopsis
This class encapsulates the semantic information of an action. The
command itself contains only information about a command, but not the
actual action that happens when a command is activated. The action is
defined in a CommandListener
object associated
with the screen. The Command
class constructor
takes three parameters, and therefore contains the following three
pieces of information: label,
command
type, and
priority.
- Label
A string used for the visual representation of the command. For example, the label may appear next to a soft button on the device or as an element in a menu.
- Command Type
An integer that specifies the command intent. The defined types are:
BACK
,CANCEL
,EXIT
,HELP
,ITEM
,OK
,SCREEN
, andSTOP
. The meaning of these types is explained in Table E-1.
Table E-1. Command types
Command Type |
Description |
---|---|
|
A navigation command that returns the user to the logically previous screen. |
|
A command that is a standard negative answer to a dialog implemented
by the current screen. With this command type, the application hints
to the implementation that the user wants to dismiss the current
screen without taking any action, and usually that the user wants to
go back to the prior screen. Hence, |
|
A command used for exiting from the application. |
|
A command that specifies a request for online help. |
|
An application with this command type hints to ... |
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