动画画图

动画画图


import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;

public class DoRun extends JPanel {
    private static final long serialVersionUID = 1L;

    private final int DELAY = 50; // 转动快慢设置
    // private final static Long time = (long) 5000;  //窗体关闭事件
    private static Timer timer;    //动画计时器
    private int x = 0;
    private int scrolleWidth = 0;
    /**
     * 调用
     */
    public static void main(String[] args) {
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        //本类为Panel
        frame.add(new DoRun());
        frame.setSize(600, 200);
        frame.setLocation(400, 400);
        frame.setVisible(true);
        //窗体定时关闭
      /*try {
         Thread.sleep(time);
      } catch (InterruptedException e) {
      }
      // 停止 Timer，使它停止向其侦听器发送动作事件。
      timer.stop();
      frame.setVisible(false);
      frame.dispose();*/

    }

    /**
     * 面板构造函数，初始化面板。包括Timer 的场景。
     */
    public DoRun() {
        timer = new Timer(DELAY, new ReboundListener());
        timer.start();
    }

    /**
     * 动画效果：不断的更新图像的位置，以达到动画的效果。
     */
    private class ReboundListener implements ActionListener {
        @Override
        public void actionPerformed(ActionEvent e) {
            if (x < 360) {
                //控制每个DELAY周期旋转的角度，+ 为逆时针  - 为顺时针
                x = x - 5;
            } else {
                x = 0;
            }
            if (scrolleWidth < 200) {
                scrolleWidth = scrolleWidth + 10;
            }else {
                scrolleWidth = 0;
            }
            repaint();
        }
    }

    /**
     * 绘出图像在面板中的位置
     */
    public void paintComponent(Graphics page) {
        super.paintComponent(page);
        drawArc(page);
    }

    /**
     * 画图形
     */
    private void drawArc(Graphics g) {
        Graphics2D g2d = (Graphics2D) g.create();
        //抗锯齿
        //JDK文档：http://tool.oschina.net/uploads/apidocs/jdk-zh/java/awt/RenderingHints.html
        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g2d.setColor(Color.blue);
        g2d.fillArc(10, 10, 100 , 100 , x, 240);
        g2d.setColor(Color.BLACK);
        g2d.fillArc(30, 30, 60 , 60 , 0, 360);
        g2d.dispose();


        Graphics2D g2d2 = (Graphics2D) g.create();
        g2d2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        //设置画笔颜色
        g2d2.setColor(Color.BLACK);
        g2d2.drawRoundRect(120, 10, 300 , 30 , 10, 10);
        g2d2.setColor(Color.blue);
        g2d2.fillRoundRect(120 + scrolleWidth,10, 100, 30 , 10,10);

/*        g2d2.setColor(Color.BLACK);
        g2d2.fillArc(140, 30, 60 , 60 , 0, 360);*/
        g2d2.dispose();
    }
}

参考 

https://blog.csdn.net/qq_18878455/article/details/88831345