j2me lwuit 1.4 源码+示例

LWUIT Designer

The LWUIT Designer is a standalone GUI tool that allows UI experts, developers, and translators to

open, create, and edit resource packages for LWUIT. The LWUIT Designer was designed for visual

work and provides “live” preview of all UI changes, enabling rapid UI customization.

Currently the LWUIT Designer and

the Ant tasks (discussed in the

Developer's Guide) accomplish the

same thing, with one limitation. In

tasks.

The LWUIT Designer supports the

six LWUIT resource types: Image,

Animation, Theme, Font ,

Localization and Data. To use the

tool:

● Use File > Open to load an

existing resource (.res) file.

● To Add a resource click the button in the tab

representing the element type you wish to add &

represents the behavior of the theme alone. It doesn't contain the other resources in the file that do

not relate to the theme.

Images and Animations

Images and animations can be used either by a theme or by the LWUIT

application. The LWUIT Designer supports images (JPEG, PNG) and animated

GIFs. The images and animations can be replaced using the button.

Standard images can also be indexed. An indexed image takes less space in the

final application and occupies less memory space, however, it takes longer to

draw and supports up to 256 colors. When you toggle the indexed image radio

button, the number of colors is verified. If more than 256 colors are present the

Fonts

The LWUIT Designer can create bitmap fonts for the device from any font installed in your

operating system.

Note, using the LWUIT Designer

does not grant you permission to

use the fonts commercially in any

way. Licensing the right to use a

particular font within a mobile

(defaults to upper and lower case

English with numbers and

symbols). Notice that the more

characters you pick in the charset,

the more RAM the font consumes.

Anti-aliasing is “built in” to the

bitmap font. When running under

Java 5 the LWUIT Designer has

two anti-aliasing options: Off

indicates no anti-aliasing in the

within the application. A

key can be mapped to a

resource name in any

locale.

The editor allows you to

add or remove locales

listed in the combo box

above and appropriately

edit the locale entries in

the table below. To add or

remove a locale property

use the buttons on the

produce an attractive UI.

you see a UI containing the

table of selectors and

resources (for more in depth

details of themes for

developers please see the

Theme chapter in the

Developer's Guide).

To modify the theme, choose

a selector on the left side

then click the Edit button.

Edit button.

Example: Adding a New Theme

An example might be the best way to illustrate something like this:

1. Use the button to add a new theme and select it in the tab.

2. Click the Add button within the theme area (Add Entry) and select bgColor for the attribute.

3. Click the Add button again and select

SoftButton in the Components combo

4. Because black over blue is unreadable,

add another entry for SoftButton.

5. The title looks small and insignificant. You might add a Title fgColor and set it to red, but

that's not quite enough.