With buffering, the MIDlet adapts to the device display resolution (because the graphics are defined in SVG format) and still retain the speed of bitmap rendering.

The program renders each icon's animation sequence separately into off-screen buffers (for faster rendering later on), using the JSR 226 API. In this example, a graphic artist delivered an SVG animation defining the transition state for the menu icons, from the unselected state to the selected state. This demo illustrates the flexibility that combining UI markup and Java offers: a rich set of functionality (graphics, animations, high-end 2D rendering) and flexibility in graphic manipulation, pre-rendering or playing.

That is, if the last icon in a row is selected, moving right selects the first icon in the same row. If you navigate off the icon grid, selection loops around. As you move to a new icon, it becomes selected and the previous icon flips to the unselected state. In this demo, selected icons have a yellow border. While it is possible to produce SVG content with a text editor, most people prefer to use an authoring tool. One is to use declarative animation, as illustrated in 'Play SVG Animation.' The other is to repeatedly modify the SVG image parameters (such as color or position), through API calls. Java ME applications using SVG content can create graphical effects that adapt to the display resolution and form factor of the user's display. Graphical elements can be logically grouped and identified by the SVG markup. SVGT is a compact, yet powerful, XML format for describing rich, interactive, and animated 2D content. SVG Tiny (SVGT) is a subset of SVG that is appropriate for small devices such as mobile phones. The Scalable Vector Graphics 1.1 specification (available at ) defines a language for describing two-dimensional graphics in XML. It is an XML grammar for describing rich, interactive 2D graphics. Scalable Vector Graphics is a standard defined by the World Wide Web Consortium.

This chapter describes how to work with SVG capabilities in Java ME SDK. JSR 226, the Scalable 2D Vector Graphics API (SVG), supports rendering of sophisticated and interactive 2D content.

Inkscape svg animation