“PRESS 5” 7个字符依次向空中飞起再落下 晚上想了下写了出来
{geshibot lang="javascript"}import javax.microedition.lcdui.*;
/**
* 进行低阶绘图的Canvas类
*
* @author aflylove
* @version 1.0
*/
class DrawCanvas extends Canvas implements Runnable{
private Image img;
/** 构造函数 */
private String str=new String("PRESS 5");
private int[] ak={0,0,0,0,0,0,0,1,2,3,3,2,1,0,0,0,0,0,0,0};
boolean kaishi=true;
private int k=6;
public DrawCanvas (){
new Thread(this).start();
}
protected void paint(Graphics g){
g.setColor(0x00ffffff);
g.fillRect(0,0,getWidth(),getHeight());
g.setColor(0x00000000);
for(int i=0;i<str.length();i++){
g.drawString(str.substring(i,i+1),20+i*7,10-ak[k-i],0);
g.drawString(str.substring(i,i+1),21+i*7,11-ak[k-i],0);//加重字体7是字体宽度
}
}
public void run(){
while(kaishi){
try {
repaint(); //再描绘
Thread.sleep(70); //等待一定时间
k++;
if(k>(ak.length-1)) k=6;
}
catch(InterruptedException e){}
}
}
}{/geshibot}