java - 如何通过按钮单击事件停止动画

Question

嗨，有人可以帮忙吗，下面是一段代码，我试图实现一个单击事件，当单击按钮时，动画将启动，并且可以随时停止。它对于启动动画效果很好，只是停止时出现了问题

public class AnimateCircleListener implements ActionListener,MouseListener
 {
    public void actionPerformed(ActionEvent e)
    {

        if(e.getSource() == button)
        {
           flag = true;

           if(flag == true)
          {
              // creates thread object and calls the move method
              Move move = new Move();
              thread = new Thread(move);
              thread.start();

          }

        }
     }

           @Override
            public void mouseClicked(MouseEvent arg0) {



            }


            @Override
            public void mouseEntered(MouseEvent arg0) {

            }

            @Override
            public void mouseExited(MouseEvent arg0) {


            }

            @Override
            public void mousePressed(MouseEvent arg0) {

            }

            @Override
            public void mouseReleased(MouseEvent arg0) {


        }

  }

    public class Move implements Runnable  // method for moving ball
    {
     public void run()
     {
        do
        {
            x = x + xvel;

            if(x + diameter > 484)
            xvel= -1;

            if(x <= 0)
            xvel =  + 1;

            drawPanel.repaint();

            try
              {
              Thread.sleep(10);
              }
               catch(Exception ex)
              {
                  System.out.println("Error");
              }

          }while(decide);  // by default decide = true

       }
     }

Answer 1

使用 Swing Timer对于动画。

然后您只需调用“开始”按钮中的 start() 方法和“停止”按钮中的 stop() 方法即可。