drawimagecanvas.java

java移动通信程序设计

import javax.microedition.lcdui.*;

public class DrawImageCanvas
    extends Canvas {

  int width = 0;
  int height = 0;
  Image image = null;

  DrawImageCanvas(Image image){
	  this.image = image;
  }
  public void paint(Graphics g) {
    width  = getWidth();
    height = getHeight();

    g.setGrayScale(255);
	g.fillRect(0,0,width-1,height-1);
	g.setGrayScale(0);
    g.drawRect(0,0,width-1,height-1);

    g.drawImage(image,width/2,height/2,g.HCENTER|g.VCENTER);

  }
}