j2me透明效果的設(shè)計

透明效果的設(shè)計，是開發(fā)游戲以及UI的常談話題，小弟整理了下關(guān)于透明效果的嗲們，有興趣的朋友可以看看
    代碼
    /**
    *
    * @author Jagie
    *
    */
    public class ShadowMIDlet extends MIDlet {
    Canvas c = new ShadowCanvas();
    public ShadowMIDlet() {
    }
    protected void startApp() throws MIDletStateChangeException {
    Display.getDisplay(this).setCurrent(c);
    }
    protected void pauseApp() {
    // TODO Auto-generated method stub
    }
    protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
    // TODO Auto-generated method stub
    }
    }
    /**
    *
    * @author Jagie
    *
    */
    class ShadowCanvas extends Canvas implements Runnable {
    int w, h;
    // 原始圖片
    Image srcImage;
    // 原始圖片的像素數(shù)組
    int[] srcRgbImage;
    // 漸變圖片的像素數(shù)組
    int[] shadowRgbImage;
    int imgWidth, imgHeight;
    int count;
    public ShadowCanvas() {
    w = this.getWidth();
    h = this.getHeight();
    try {
    srcImage = Image.createImage("/av.png");
    } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
    }
    imgWidth = srcImage.getWidth();
    imgHeight = srcImage.getHeight();
    // 制造原始圖片的像素數(shù)組，用一個int來代表每一個像素,按位表示方式是:0xAARRGGBB