Do It with LWUIT!

Terrence BarrSenior Technologist and Community AmbassadorJava Mobile & Embedded CommunitySun Microsystems

Agenda

• Java Mobile & Embedded Community

• What is LWUIT?• Motivation• Key Benefits• Key Features• Demo• Designer Tool• What happened since launch

Java Mobile & Embedded Community

• Hub for blogs, industry news, and resources

• More than 20,000 activities/month

• Home of phoneME, LWUIT, and 200 other community projects

www.mobileandembedded.org

Vibrant community with deep mobile and embedded Java expertise

11/06 06/08 08/08 01/09

0

50,000

100,000

150,000

200,000

250,000

300,000

350,000

0

50

100

150

200

250

Java Mobile & Embedded Community Growth

Activity Projects

Month

Cu

mu

lativ

e A

ctiv

ity

Pro

ject

s in

Co

mm

unity

At a Glance

What is LWUIT?

• Advanced, lightweight UI library• Compelling UI• Consistent across different devices• For today's handsets (and more ...)• Portable

> MIDP, CDC, SE, TV ...

• Inspired by Swing• Tools support• Open source: GPLv2 + classpath exception

Motivation

• Complex UI requirements on existing devices• Too much fragmentation

> Is WORA even possible?

• Strong market need for compelling UI library• High portability

> No Java library that spans across mobile & TV (CDC & CLDC)

• Streamlines operations between graphic designer and content developers

Key Benefits

• Rapid development> Familiar API> Clean & Simple

• Easy deployment> One JAR –

many devices

• Mass market devices• Consistent + Extendable• Filthy Rich UI• Brand-able

Key Features

• Swing-like MVC• Layouts• PLAF & themes• Fonts• Rich widgets • Painters• Animations & transitions• 3D, SVG integration• Touch screen support• I18N/L10N support• ... more

Transitions

• Ready Made common transitions> Slide, Fade> 3D transitions – Cube , Rotate, Fly in

• Extendable• Applicable for

> Forms> Dialogs> Menu> Components

Touch Screen Support

• All widgets supports touch screen events• Drag and drop support, including flow rearrange on

drop with live feedback• Gesture scrolling (“iPhone effect”)• Physics engine for fluid motion• Glass pane & z-ordered components for component

dragging• Implicit support for touch screen devices, same

application for touch & feature phones

Demo

Example: List Renderer & ModelForm form = new Form(“List”);form.setLayout(new BorderLayout());List list = new List(new String[] { “Item 1”, “Item 2”, “Item 3”, “Item 4”});list.setListCellRenderer(new MyRenderer());form.addComponent(BorderLayout.CENTER, list);form.addCommand(exitCommand);form.show();

Approach

Designer Tool (“Resource Editor”)

• Built for designers> De-couples designer and developer's environment

• Standalone application• Resources:

> Themes> Fonts> Animations/Images> Localization

• Live preview

Performance & Portability

• Tested on numerous mobile devices > Nokia s40 + s60, Sony Ericsson, Motorola, LG, Samsung,

Sprint, ...

• Tested on Sigma designs STB with Java Media Client• Designed for small size/overhead• Most overhead is in resources (application-specific!)• Indexed Image & light mode for low end• Doesn't require preprocessor!

Footprint

• Jar size as low as 80-90kb for a small application

• Memory depends on > Theme/functionality/resolution

• Example> UI Demo runs on 320x240x24bpp Nokia S40

using under 1 MB and no more than 2 MB

• Themes can be light or heavy depending on their features

What happened since launch

• Very well received by the community• LWUIT on java.net

> On the Top 5 projects list by email traffic! > Over 70000 forum views> 3rd party developers contributing

• Internet buzz> Over 40000 results in google> Blogs, articles and more (“Do It with LWUIT!”)

• Half-day LWUIT tutorial at M3DD (Jan 2009)> Materials available (slides, audio, exercises)

What happened since launch (2)

• Adoption in Tools> Sprint WTK 2.2> Java ME SDK 3.0

• LWUIT applications rapidly developed!> Comverse VVM, Nuux,

Emoze email,Telmap, CTIA conference app, more ..

• Adopted in the SBTVD Java DTV open spec> http://java.sun.com/javame/technology/javatv/index.jsp

For More Information ...

• Java Mobile & Embedded Community> http://www.mobileandembedded.org

• LWUIT project page> http://lwuit.dev.java.net/> Downloads, developers guide, tutorials, videos> Very active forum & mailing list> Device database

• Feedback lwuit@sun.com• Shai's blog http://lwuit.blogspot.com/

> Tips & tricks, examples, technical info

Thank You! (Q&A)

Do It with LWUIT!

Terrence BarrSenior Technologist and Community AmbassadorJava Mobile & Embedded CommunitySun Microsystems