Java Development

[mrdialect2012]

I am extending full screen on my class and would like to add an image to the screen.

So far I have looked online for help in doing so and have wrote this thus far. Not sure why my image isnt displaying.

package mypackage;
import net.rim.device.api.system.Application;
import net.rim.device.api.system.Bitmap;
import net.rim.device.api.system.Display;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.Graphics;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.ButtonField;
import net.rim.device.api.ui.container.FullScreen;
import net.rim.device.api.ui.container.HorizontalFieldManager;

public class IntroPage extends FullScreen{

	Bitmap backgroundBitmap = Bitmap.getBitmapResource("background.png");

	public IntroPage()
	{
       ButtonField buttonField_3 = new ButtonField( "Start", ButtonField.CONSUME_CLICK | ButtonField.FIELD_VCENTER  );
		
		final selectionPage i = new selectionPage();
		
		buttonField_3.setChangeListener(new FieldChangeListener() {
            public void fieldChanged(Field field, int context) {
                UiApplication.getApplication();
				synchronized (Application.getEventLock()) {
                    UiApplication.getUiApplication().pushScreen(i);
                }
            }
        });
	add( buttonField_3 );
	
	}
	
	
	HorizontalFieldManager horizontalFieldManager = new HorizontalFieldManager(HorizontalFieldManager.USE_ALL_WIDTH |
	HorizontalFieldManager.USE_ALL_HEIGHT){
	
		protected void paint(Graphics g) {
		
		g.drawBitmap(0, 0, Display.getWidth(), Display.getHeight(), backgroundBitmap, 0, 0);
		
		super.paint(g);
		
		//g.drawText("Tic Tac Toe", 280, 170);
	
	}
	};
	
}

[peter_strange]

You seem to be tying to display your image as the background to a HorizontalFieldmanager.  I am not sure about your use of USE_ALL_HEIGHT and USE_ALL_WIDTH for this, nor am I sure about what will happen when you try to paint the Bitmap across the entire width and height (what if it is not the right size?).  But the biggest problem I see is that you never add this manager to the screen.

I recommend that you review this: 

http://supportforums.blackberry.com/t5/Java-Development/MainScreen-explained/ta-p/606644

I know you are trying to extend FullScreen, but a MainScreen is really a FullScreen with extra function, so I think the basics explained are also applicable (look at the comments too BTW).

I would also review this KB article:

http://supportforums.blackberry.com/t5/Java-Development/Use-a-background-image-in-application-screen...

You will find other useful stuff if you search here for background image.