midlet2.java

这是郭克华老师的J2ME视频的源代码

package prj24_1;

import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.lcdui.game.TiledLayer;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class MIDlet2 extends MIDlet {
	private MyGameCanvas mgc = new MyGameCanvas();
	private Display dis;
	protected void startApp() throws MIDletStateChangeException {
		dis = Display.getDisplay(this);
		dis.setCurrent(mgc);
	}
	protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
		// TODO Auto-generated method stub

	}
	protected void pauseApp() {
		// TODO Auto-generated method stub

	}
	
	class MyGameCanvas extends GameCanvas implements Runnable{
		private Image map;
		private TiledLayer tl;
		private Graphics gra;
		public MyGameCanvas(){
			super(true);
			try{
				map = Image.createImage("/map.png");
				gra = this.getGraphics();
				//用map.getWidth()/2,map.getHeight()大小将map分割
				//分割之后去填充一个4行4列的网格地图(行列序号从0开始算)，图片小块index从1开始
				tl = new TiledLayer(4,4,map,map.getWidth()/2,map.getHeight());
				//用数组填充
				int[][] cells = new int[][]{
					{1,2,1,2},
					{1,2,2,2},
					{1,2,1,2},
					{1,2,1,2}
				};
				for(int i=0;i<4;i++){
					for(int j=0;j<4;j++){
						tl.setCell(j, i, cells[i][j]);
					}
				}
				
				
				
				tl.paint(gra);
			}catch(Exception ex){
				ex.printStackTrace();
			}
			
		}
		public void run(){
			
		}
	}

}