public class LoadingShell extends Canvas implements Runnable, CommandListener{
//单例模式
public static LoadingShell singleton;
//定义一个下面要显示的屏幕
private Displayable next;
//定义总高和总宽
private int width=this.getWidth();
private int height=this.getHeight();
//绘图用参数
private int rollx=0;
private int left=this.width/26;
private int widthRect=this.width*12/13;;
private int top=this.height*2/3;
private int heightRect=10;
//定义按钮
private final Command exit;
private final Command change;
//定义一个判断值
private boolean check=true;
//构造函数
public LoadingShell()
{
this.exit = new Command("离开", Command.EXIT, 0);
this.addCommand(exit);
this.change= new Command("修改", Command.EXIT, 0);
this.addCommand(this.change);
this.setCommandListener(this);
}
//绘制图象
protected void paint(Graphics g) {
// TODO 自动生成方法存根
System.gc();