[pa4o85]

I have a class like this that pushes to the stack a new screen that is a picture (jpeg, gif or something). In the case i have an animated gif I have a problem with displaying the frames of the gif. Here is my class:

public class FullScreenBanner extends MainScreen {
  private int bannerWidth;
  private int bannerHeight;
  
  private int wFrame;
  private int hFrame;
  private int lOffset = 0;
  private int tOffset = 0;
  
  private EncodedImage encodedImage;
  private Bitmap fullScreen;
  
  private int index = 0;
  private int backgroundColor;
  /** 
   * Constructor
   * 
   * @param fullScreenBanner - byte array
   */
  public FullScreenBanner(byte[] fullScreenBanner, int color) {
    super(Manager.NO_VERTICAL_SCROLL);
    encodedImage = EncodedImage.createEncodedImage(fullScreenBanner, 0, fullScreenBanner.length);
    wFrame = bannerWidth = encodedImage.getWidth();
    hFrame = bannerHeight = encodedImage.getHeight();
    if (encodedImage.getImageType() == EncodedImage.IMAGE_TYPE_GIF) {
      getNextFrame();
    } else {
      fullScreen = Bitmap.createBitmapFromBytes(fullScreenBanner, 0, -1, 1);
    }
    this.backgroundColor = color;
  }
    
  protected void paint(Graphics g) {
    g.setBackgroundColor(backgroundColor);
    int wp = (Display.getWidth() + bannerWidth) / 2;
    int wm = (Display.getWidth() - bannerWidth) / 2;
    int hp = (Display.getHeight() + bannerHeight) / 2;
    int hm = (Display.getHeight() - bannerHeight) / 2;
    g.clear(0, 0, wp, hm);
    g.clear(wp, 0, wm, hp);
    g.clear(0, hm, wm, hp);
    g.clear(wm, hp, wp, hm);
    g.drawBitmap(wm + lOffset, hm + tOffset, wFrame, hFrame, fullScreen, 0, 0);
  }
  
  private void getNextFrame() {
    index = 0;
    TimerTask ttask = new TimerTask() {
      public void run() {
        fullScreen = encodedImage.getBitmap(index);
        GIFEncodedImage gif = (GIFEncodedImage) encodedImage;
        lOffset = gif.getScaledFrameLeft(index);
        tOffset = gif.getScaledFrameTop(index);
        wFrame = gif.getFrameWidth(index);
        hFrame = gif.getFrameHeight(index);
        if (index == (gif.getFrameCount() - 1)) {
          index = -1;
        }
        index++;
        UiApplication.getUiApplication().getActiveScreen().invalidate();
      }
    };
    GIFEncodedImage gif = (GIFEncodedImage) encodedImage;
    new Timer().scheduleAtFixedRate(ttask, gif.getFrameTransition(index) * 100, 
        gif.getFrameDelay(index) * 10);
  }
  
  protected void onFocus(int direction) {
    super.onFocus(direction);
  }
  
  protected boolean trackwheelClick(int status, int time) {
    return true;
  }
  
}

I have a timer task that gets the next frame and its offsets and a timer that execute the task. When I have a frame smaller than the gif size the frame under is gone out. I mean that every time when the area is repainting itself the old content is missing but i need it because the old frame of the gif is a part of the new one. Do u understand what i mean ?