Motorola C381P 用户手册
24
LCDUI
LCDUI
95
24
LCDUI
LCDUI API
The Table 21 lists the specific interfaces supported by Motorola implementation:
Interface
Description
Choice
Choice defines an API for user interface components implementing
selection from a predefined number of choices.
selection from a predefined number of choices.
CommandListener
This interface is used by applications which need to receive high-level
events from implementation
events from implementation
ItemCommandListener
A listener type for receiving notification of commands that have been
invoked on Item
invoked on Item
286
objects
ItemStateListener
This interface is used by applications which need to receive events that
indicate changes in the internal state of the interactive items within a
Form
indicate changes in the internal state of the interactive items within a
Form
231
screen.
Table 21 Interfaces supported by Motorola implementation
The Table 22 lists the specific classes supported by Motorola implementation:
Classes
Description
Alert
An alert is a screen that shows data to the user and waits for a certain
period of time before proceeding to the next Displayable.
period of time before proceeding to the next Displayable.
AlertType
The AlertType provides an indication of the nature of alerts.
Canvas
The Canvas class is a base class for writing applications that need to
handle low-level events and to issue graphics calls for drawing to the
display.
handle low-level events and to issue graphics calls for drawing to the
display.
ChoiceGroup
A ChoiceGroup is a group of selectable elements intended to be
placed within a Form.
placed within a Form.
Command
The Command class is a construct that encapsulates the semantic
information of an action.
information of an action.
CustomItem
A CustemItem is customizable by sub classing to introduce new