Interior canvas full screen white screen returns

The following code gives me a white screen:

class gameScreen extends FullScreen {

  Graphics graphics;  rimSprite hero;

  public gameScreen() {    super(Screen.USE_ALL_HEIGHT | Screen.USE_ALL_WIDTH);    System.out.println(">>>>> Gamescreen loading...");    graphics = getGraphics();    graphics.setBackgroundColor(Color.BLUE);    graphics.drawText("test", 40, 40);    try {      hero = new rimSprite("img/player.gif", 1, 20, 20, 20);      hero.setFrame(3);      hero.paint(graphics);    } catch (Exception e) {      System.out.println(">>>>> Message was: " + e.getMessage());    }    paint(graphics);    System.out.println(">>>>> Gamescreen loaded.");  }}

And I don't see why... I try to paint the screen but somehow, I get a white screen.

I've found a few discussions with the same problem as mine... enlighten me please!

Are you trying to push a screen on which you can paint the bitmap images and other things.

If Yes, then let me give you an example how you can do it.

import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.container.FullScreen;
import net.rim.device.api.ui.Graphics;
import net.rim.device.api.system.Display;

class Main extends UiApplication
{
    public  Main()
    {
        super();
        PaintScreen paintScreen = new PaintScreen();
        pushScreen(paintScreen);
    }
    public static void main(String[] args)
    {
        Main main  = new Main();
        main.enterEventDispatcher();
    }

    public class PaintScreen extends FullScreen
    {
        public PaintScreen()
        {
            super();
            paintSomething();
        }

        public void paintSomething()
        {
            UiApplication.getUiApplication().invokeLater(new Runnable()
            {
                public void run()
                {
                    draw();

                }//end of run()
            });//end of runnable()
        }

        public void draw()
        {
            Graphics graphics = this.getGraphics();
            int w = Display.getWidth();
            int h = Display.getHeight();

            graphics.setColor(0x00000000);
            graphics.fillRect(0, 0, w/2, h/2);

            graphics.setColor(0x00FF0000);
            graphics.fillRect(w/2, 0, w/2, h/2);

            graphics.setColor(0x0000FF00);
            graphics.fillRect(0, h/2, w/2, h/2);

            graphics.setColor(0x000000FF);
            graphics.fillRect(w/2, h/2, w/2, h/2);

            this.updateDisplay();
        }
        public boolean onClose()
        {
            this.close();
            return true;
        }
    }
}

Concerning

Bika

Tags: BlackBerry Developers

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Interior canvas full screen white screen returns

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