Programming Wireless Devices with the Java2 Platform

9.5 New for MIDP 2.0

We have marked a number of topics in this chapter as New! with an icon in the book margin. Here is a summary of the most important new high-level user interface features of MIDP 2.0 described in this chapter.

Each of the Screen classes has been enhanced to provide more control over presentation and event handling.

The Font class has been extended to allow:

• the querying of the default Font for static text and input text (see the getFont method).

The List class has been extended to allow:

• the ability to get and set the Font of each element in the list (see the setFont and getFont methods),

• the control of the wrapping or truncation of text within elements (see the setFitPolicy and getFitPolicy methods),

• the ability to set the default command for selecting elements (see the setSelectCommand method),

• the ability to delete all of the elements in the list with a single method (see the deleteAll method), and

• the ability to set mutable Images as elements of a List (see the append, insert, and constructor methods).

The Alert class has been extended to allow:

• the Images in an Alert to be mutable (see the setImage method),

• a Gauge to be used as a progress indicator in the Alert (see the setIndicator and getIndicator methods),

• one or more Commands to be added and to replace the default dismiss command (see the addCommand and removeCommand methods), and

• setting a command listener to allow the application to handle Commands and to disable the built-in timer and command handling (see the setCommandListener method).