Programming Wireless Devices with the Java 2 Platform

While the high-level user interface API provides maximum portability and development ease, some applications require greater control over the user interface. The MIDP low-level user interface...

The Canvas To directly use the display and the low-level user interface , the developer uses the Graphics and Canvas classes. The Canvas class provides...

11.Key Events If the application needs to handle key events in its Canvas, it must override the Canvas methods keyPressed, keyReleased, and keyRepeated. When a key...

Graphics All graphical operations are performed using a Graphics object. This object encapsulates a context for drawing to a particular target entity, including the current drawing...

11.Immutable Images Images in a MIDP implementation may be either immutable or mutable. Immutable Images can be created directly from resource files, binary data, RGB data,...

The Graphics class provides various low-level drawing primitives. In general, drawing is started by calling the various methods of the Graphics object to set the...

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...