Changing foreground/ Background color in a High-Level GUI MIDlet

Question

I have created MiDlet and all the Screens in the MIdlet are High-Level GUIs (Elements from Palette) and I didn't use any Canvas.
Now, I want to give color customization capability to my application.
I know its possible to change colors in a canvas.
But, my MIdlet doesn't use any canvas.
So, is there any possibility to achieve this ? (even if it takes to add canvas to my MIdlet, no problem, I just want it accomplished anyhow)
Please give me any slightest of ideas to achieve this.

Answer 1

I am not sure this will help you or not.... any way if u just want to add some animation or graphics to form its possiable thur javax.microedition.lcdui.CustomItem.
You can see it as a small canvas inside your form.
import javax.microedition.lcdui.*;
public class MyCustomItem extends CustomItem
    int W,H;
    public MyCustomItem(String label, int Width, int Height)
        super(label);
        W=Width;
        H=Height;
        protected int getMinContentWidth() {
        return W;
    protected int getMinContentHeight() {
        return H;
    protected int getPrefContentWidth(int i) {
        return getMinContentWidth();
    protected int getPrefContentHeight(int i) {
        return getMinContentHeight();
    protected void paint(Graphics g, int i, int i0) {
        g.setColor(100,0,0);
        g.fillRect(0,0,i,i0);
        g.setColor(0,255,0);
        g.drawString("Hello Thank God Its Working",10,10,Graphics.TOP|Graphics.LEFT);
}you can use MyCustomItem in your midlet
import javax.microedition.midlet.MIDlet;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDletStateChangeException;
public class CustomItemDemo1 extends MIDlet
    private Display disp;
    private Form frm;
    private MyCustomItem cust;
    protected void startApp() throws MIDletStateChangeException {
    disp=Display.getDisplay(this);
    frm=new Form("CustomItem Demo1");
    cust=new MyCustomItem("This is Cool...",100,100);
    cust.setLayout(CustomItem.LAYOUT_NEWLINE_BEFORE|CustomItem.LAYOUT_CENTER|CustomItem.LAYOUT_NEWLINE_AFTER);
    frm.append("hi this is Before Adding");
    frm.append(cust);
    frm.append("This is After Adding");
    disp.setCurrent(frm);
    protected void pauseApp() {
    protected void destroyApp(boolean b) throws MIDletStateChangeException {
}Just like canvas we can even add key press and other events inside CusomItem
you can even add traversal features by
    protected void traverseOut()
        // do some thing here
    protected boolean traverse(int dir, int viewportWidth, int viewportHeight, int[] visRect_inout) {
        //do some thing here....
return false; // or true;
    }Rest test and discover your self....
Hope it helps..
Edited by: Zac-Mathews on Jun 15, 2008 10:52 PM
Edited by: Zac-Mathews on Jun 15, 2008 10:56 PM