J2ME

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Java

ImageCanvas.java：源码内容

							package mutableimagedemo;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.game.*;
import java.io.*;
import java.lang.*;
public class ImageCanvas extends Canvas
{
	//private Graphics g;
	public int type = 0;
	private Image image;
	public ImageCanvas()
        {
        }
        public void paint(Graphics g)
        {
        g.setColor(0x00000000);
	g.fillRect(0, 0, this.getWidth(), this.getHeight());
	image = Image.createImage(100,100);
	Graphics image_G = image.getGraphics();	
	image_G.setColor(0xFF0000);
	image_G.fillRect(25,25,50,50);
	g.drawImage(image,getWidth()/2,getHeight()/2,g.VCENTER|g.HCENTER);
        }
}

						