JAVA 实现漂浮效果

package Rong;

import java.awt.Toolkit;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.*;

import javax.swing.Timer;

public class FlyFly extends JFrame implements ActionListener {

private static final long serialVersionUID = 1L;

private JButton jb = new JButton();

private Timer tm;

// -----最大点击次数，消失，必须大于或等于1

private static int hp = 1;

// -----最大坐标

private static int W;

private static int H;

// -----当前坐标

private static int xp;

private static int yp;

// -----当前移动步径

private static int xstep = 3;

private static int ystep = 3;

// -----最大移动步径(随机范围，可以设置)

private static int maxxstep = 19;

private static int maxystep = 17;

public FlyFly(int w, int h) {

W = (int) Toolkit.getDefaultToolkit().getScreenSize().getWidth() - w;

H = (int) Toolkit.getDefaultToolkit().getScreenSize().getHeight() - h;

System.out.println(W + ":" + H);

this.setSize(w, h);

xp = W / 2;

yp = H / 2;

this.setLocation(xp, yp);

this.setAlwaysOnTop(true); //窗体总在最前面

this.setResizable(false); //窗体不能改变大小

this.setUndecorated(true); //窗体不要边框

this.getContentPane().setLayout(new GridLayout(1, 1));

this.getContentPane().add(jb);

jb.setIcon(new ImageIcon("D:/al.jpg")); //设置JButton的图片效果

jb.addActionListener(this); //这个不能忘记，挂载ActionListener接口。

tm = new Timer(100, this); //Timer是需要依附在一个实现了ActionListener接口的对象上。(单位毫秒，可以设置)

tm.start(); //Timer需要打开

this.setVisible(true);

}

public void changeDirection() {

// 如果到达边沿要转弯

if ((xp <= 0 && xstep < 0) || (xp >= W && xstep > 0)) {

xstep = -xstep;

}

if ((yp <= 0 && ystep < 0) || (yp >= H && ystep > 0)) {

ystep = -ystep;

}

this.setLocation(xp, yp); // 位置重新设置

}

public void actionPerformed(ActionEvent e) {

// 坐标按照当前状态移动

xp += xstep;

yp += ystep;

if (e.getSource() == jb) { // 点击造成随机生成移动状态

hp--;

xp = (int) System.currentTimeMillis() % W;

yp = (int) System.currentTimeMillis() % H;

xstep = (int) System.currentTimeMillis() % (2 * maxxstep + 1)

- maxxstep;

ystep = (int) System.currentTimeMillis() % (2 * maxystep + 1)

- maxystep;

}

changeDirection(); // 刷新显示状态

if (hp <= 0) {

System.exit(0);

}

}

public static void main(String[] _s) {

FlyFly ff = new FlyFly(200, 200);

}

}

原作者：ios基地

原文出处：CSDN博客

原文链接：https://blog.csdn.net/u012202641/article/details/11896647?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522160464154519195264713520%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=160464154519195264713520&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~sobaiduend~default-4-11896647.pc_v1_rank_blog_v1&utm_term=java&spm=1018.2118.3001.4450