Splash screen implementation for Blackberry Java application

BrandApp.java

/**
 * This is how to use ScreenSplash.java
 */
package com.durianapp.brandapp;

import com.durianapp.brandapp.ui.ScreenSplash;

public class BrandApp extends UiApplication {
    public BrandApp() {

         // ScreenMenu.get() is just another singleton getter for the next screen
         // 1600 is the delay before the next screen, in milisecond
         ScreenSplash.show(ScreenMenu.get(), 1600);
    }
	
    public static void main(String[] args){
    	new BrandApp().enterEventDispatcher();
    	
    }
}

ScreenSplash.java

package com.durianapp.brandapp.ui;

import net.rim.device.api.system.Bitmap;
import net.rim.device.api.system.Display;
import net.rim.device.api.ui.Graphics;
import net.rim.device.api.ui.Screen;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.BitmapField;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.ui.container.VerticalFieldManager;
import net.rim.device.api.ui.decor.Background;
import net.rim.device.api.ui.decor.BackgroundFactory;

public class ScreenSplash extends MainScreen {
	private static ScreenSplash screen;
	public static ScreenSplash get(Screen nextScreen, int delay){
		if (screen == null) {
			screen = new ScreenSplash(nextScreen, delay);
		}
		return screen;
	}
	public static void show(final Screen nextScreen, final int delay) {
		if (!get(nextScreen, delay).isDisplayed()) {
			UiApplication.getUiApplication().invokeLater(new Runnable() {
				public void run() {
					UiApplication.getUiApplication().pushScreen(get(nextScreen, delay));
				}
			});
		} else {
			UiApplication.getUiApplication().invokeLater(new Runnable() {
				public void run() {
					UiApplication.getUiApplication().popScreen(get(nextScreen, delay));
					UiApplication.getUiApplication().pushScreen(get(nextScreen, delay));
				}
			});
		}
	}
	
	private BitmapField logoField;
	private VerticalFieldManager bgManager;
	public ScreenSplash(final Screen nextScreen, final int delay) {
		super(NO_VERTICAL_SCROLL);
		bgManager = new VerticalFieldManager(NO_VERTICAL_SCROLL | 
				USE_ALL_WIDTH | USE_ALL_HEIGHT);
//		Background bg = BackgroundFactory.createBitmapBackground(Bitmap.getBitmapResource("gen/bg.jpg"));
		bgManager.setBackground(Resources.getBackground());
		add(bgManager);
		
		logoField = new BitmapField(Resources.getLogo()) {
			public void layout(int w, int h) {
				setExtent(Display.getWidth(), Display.getHeight());
			}
			public void paint(Graphics g) {
				int left = (getWidth() - getBitmapWidth())/2;
				int top = (getHeight() - getBitmapHeight())/2;
				g.drawBitmap(left, top, getBitmapWidth(), getBitmapHeight(), getBitmap(), 0, 0);
			}
		};
		
		bgManager.add(logoField);
		
		new Thread(new Runnable() {
			public void run() {
				try {
					Thread.sleep(delay);
				} catch (InterruptedException e) {
				}
				
				UiApplication.getUiApplication().invokeLater(new Runnable() {
					public void run() {
						UiApplication.getUiApplication().pushScreen(nextScreen);
						UiApplication.getUiApplication().popScreen(getScreen());
					}
				});
			}
		}).start();
	}
	
}