如何在J2ME中设置列表的背景色

Question

I'm new in J2ME and I'd like to know how to make the background of my list to a color like grey and text into a color like black? The tutorials I'm getting are too complex for a beginner, I was wondering whether you guys might care to help.

Here is my code.

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class ExclusiveChoiceList extends MIDlet{
    private Display display;
    private List list;

    public ExclusiveChoiceList() {
      list = new List("Books", Choice.EXCLUSIVE);
    }

public void startApp(){
display = Display.getDisplay(this);
list.append("PHP", null);
list.append("MySQL", null);
list.append("JAVA", null);
list.append("VB.net", null);
list.append("Javascript", null);
display.setCurrent(list);
}
public void pauseApp() {}
public void destroyApp(boolean unconditional){
notifyDestroyed();
}
}

Answer 1

I would suggest two ways:
1 -You can use LWUIT .You can set Foreground color( The component foreground color that usually refers to the component text color. For example, for a Button it's the text color) and Background color (The component background color) for each component(and so for lists).For example:

Button.bgColor=ff0000   
SoftButton.fgColor= ffffff   

And you can use themes that creates manually or by LWUIT Theme Creator .
For more information about lwuit see LWUIT_Developer_Guide.pdf and specially chapters 10,11.
2 -On the other hand you can extend a canvas for your purpose.You can see a good tutorial and full source code here .
Second way is less time consuming

Answer 2

I use J2ME Polish for GUI in Java ME Application. In J2ME Polish everything is based on case cade style sheet format like in website. There is a file called polish.css to define the style sheet.

I use following code in the polish.css for displaying background in list.

focused 
{
    background-color: #cccc;
}