JAVA的swing包，以GUI遥控风扇为例

风扇

定时：可用Timer类实现。注意Timer在JDK中有两个：javax.swing：教材382页和java.util：百度（https://www.cnblogs.com/jmcui/p/7519759.html），要继承TimerTask。

下图提供6副渐进变化的静态图，依次延时切换（切换速度由速度来控制）可实验动态效果。界面可参考下图：

参考界面图

1.png

2.png

3.png

4.png

5.png

6.png

参考代码：

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Timer;
import java.util.TimerTask;
import javax.swing.border.*;

//风扇面板：集中开关，定时，调速
class FanPanel extends JPanel
{
    Receiver   rec;
    JTextField speedText;
    JTextField timerText;
    JPanel onoffPanel,timerPanel,speedPanel,statusPanel;
    public FanPanel(Receiver rec)
    { Box boxH;               //行式盒
        Box boxVOne,boxVTwo;    //列式盒
        Box boxV=Box.createVerticalBox();
        this.rec=rec;
        speedText=new JTextField(10);
        timerText=new JTextField(10);
        onoffPanel=new JPanel();
        onoffPanel.setBorder(new TitledBorder("开关"));
        onoffPanel.add(new FanButton(InterfaceRC.ON,rec));
        onoffPanel.add(new FanButton(InterfaceRC.OFF,rec));
        timerPanel=new JPanel();
        timerPanel.setBorder(new TitledBorder("定时"));
        timerPanel.add(new FanButton(InterfaceRC.TIME30ADD,rec));
        timerPanel.add(new FanButton(InterfaceRC.TIME30MIN,rec));
        speedPanel=new JPanel();
        speedPanel.setBorder(new TitledBorder("调速"));
        speedPanel.add(new FanButton(InterfaceRC.SPEED1,rec));
        speedPanel.add(new FanButton(InterfaceRC.SPEED2,rec));
        speedPanel.add(new FanButton(InterfaceRC.SPEED3,rec));
        statusPanel=new JPanel();
        statusPanel.setBorder(new TitledBorder("状态"));
        boxH =Box.createHorizontalBox();
        boxVOne=Box.createVerticalBox();
        boxVTwo=Box.createVerticalBox();
        boxVOne.add(new JLabel("速度:"));
        boxVOne.add(new JLabel("定时:"));
        boxVTwo.add(speedText);
        boxVTwo.add(timerText);
        boxH.add(boxVOne);
        boxH.add(Box.createHorizontalStrut(10));
        boxH.add(boxVTwo);
        statusPanel.add(boxH);
        boxV.add(onoffPanel);
        boxV.add(timerPanel);
        boxV.add(speedPanel);
        boxV.add(statusPanel);
        add(boxV);
        setBorder(new TitledBorder("风扇面板"));
    }
    void    showTime()
    {timerText.setText(String.valueOf(rec.getTime()));}
    void    showSpeed()
    {speedText.setText(String.valueOf(rec.getSpeed()));}
}

class FanButton extends JToggleButton{
    public FanButton(String title,ActionListener listener)
    {super(title);
        addActionListener(listener);
    }
}

//遥控器接口，简化:约定的常量
interface InterfaceRC{
    String ON="开";
    String OFF="关";
    String TIME30ADD="+30";
    String TIME30MIN="-30";
    String SPEED1="1";
    String SPEED2="2";
    String SPEED3="3";
}

//遥控接收器
//简化成信息中心：含开关、调速、定时，直接控制风扇
class Receiver implements ActionListener,InterfaceRC
{
    Fan             fan;
    int             speed=1;
    int             time=0;
    boolean         onOff=false;
    FanPanel        fanSwitch;
    RemoteControler sender;
    int     getSpeed()
    {return speed;}
    int     getTime()
    {return time;}
    boolean isOnOff()
    {return onOff;}
    public  Receiver(){}
    public  Receiver(Fan fan)
    {
        this.fan=fan;
    }
    public  void setFan(Fan fan)
    {
        this.fan=fan;
    }
    public void setFanPanel(FanPanel fp)
    {fanSwitch=fp;
    }
    public void setRemoteControler(RemoteControler _sender)
    {sender=_sender;
    }

    public  void actionPerformed(ActionEvent e)
    {String cmd=e.getActionCommand();
        if (cmd.equals(ON))
            turnOn();
        else if (cmd.equals(OFF))
            turnOff();
        else if (cmd.equals(TIME30ADD))
            setTimer(1);
        else if (cmd.equals(TIME30MIN))
            setTimer(-1);
        else if (cmd.equals(SPEED1))
            setSpeed(1);
        else if (cmd.equals(SPEED2))
            setSpeed(2);
        else //cmd.equals(SPEED3)
            setSpeed(3);
    }
    void   turnOn()
    {
        if (!onOff)
        {time=0;
            onOff=true;
            speed=1;
            //启动风扇
            fan.turnOn();
        }
    }
    void   turnOff()
    {
        if (onOff)
        {time=0;
            speed=0;
            onOff=false;
            //关闭风扇
            fan.turnOff();
        }
    }
    void   decTime()
    {if (time>0)
    {--time;
        fan.showTime();
    }
    }
    void   setTimer(int increment)
    {int value;
        value=increment*30;
        if (onOff&&((time+value)<=240)&&((time+value)>=0))//最多240分钟（4小时）
        {time+=value;
            fan.setTime();
        }
    }
    void   setSpeed(int speed)
    {
        if (onOff)
            fan.turnOff();
        this.speed=speed;
        this.onOff=true;
        fan.setSpeed(speed);
    }
}



//遥控器面板
class RemoteControler extends JPanel implements InterfaceRC{
    JPanel onoffPanel,timerPanel,speedPanel;
    public RemoteControler(Receiver rec)
    {Box boxV=Box.createVerticalBox();
        onoffPanel=new JPanel();
        onoffPanel.setBorder(new TitledBorder("开关"));
        onoffPanel.add(new FanButton(ON,rec));
        onoffPanel.add(new FanButton(OFF,rec));
        timerPanel=new JPanel();
        timerPanel.setBorder(new TitledBorder("定时"));
        timerPanel.add(new FanButton(TIME30ADD,rec));
        timerPanel.add(new FanButton(TIME30MIN,rec));
        speedPanel=new JPanel();
        speedPanel.setBorder(new TitledBorder("调速"));
        speedPanel.add(new FanButton(SPEED1,rec));
        speedPanel.add(new FanButton(SPEED2,rec));
        speedPanel.add(new FanButton(SPEED3,rec));
        boxV.add(onoffPanel);
        boxV.add(timerPanel);
        boxV.add(speedPanel);
        add(boxV);
        setBorder(new TitledBorder("遥控器面板"));
    }
}

class DynamicFan extends TimerTask{
    StaticFanPicture fanpic;
    Timer timer = new Timer();
    public DynamicFan(StaticFanPicture _fanpic,int _speed)
    {fanpic=_fanpic;
        timer.schedule(this,5,90/_speed);
    }
    @Override
    public void run()
    {
        fanpic.setNextjpg();
    }
    public void kill()
    {timer.cancel();
    }
}

//静态风扇界面
class StaticFanPicture extends JPanel
{
    private CardLayout cardLayout = new CardLayout(10, 10);

    public StaticFanPicture()
    {
        setBorder(new javax.swing.border.LineBorder(Color.red));
        setPreferredSize(new Dimension(600, 30));
        setLayout(cardLayout);
        for (int i =1 ; i < 7; i++)
        {
            JLabel label =new JLabel(new ImageIcon( i + ".png"));
            add(label, String.valueOf(i));
        }
        // Place panels in the frame
    }
    public void setNextjpg()
    {cardLayout.next(this);
        validate();
    }
}

//风扇类
class Fan extends JFrame
{
    FanPanel         fanpanel;                       //风扇面板
    Receiver         rec;                            //遥控接收器
    StaticFanPicture fanpic;                         //风扇画面
    DynamicFan       dynfan;                         //风扇动态控制
    RemoteControler  sender;                         //遥控器
    Timer            timer;                          //定时器
    TimerTask        delaytask;
    public      Fan()
    {
        timer=new Timer();
        fanpic=new StaticFanPicture ();
        rec=new Receiver(this);
        sender=new RemoteControler(rec);
        fanpanel=new FanPanel(rec);
        rec.setRemoteControler(sender);
        rec.setFanPanel(fanpanel);
        add(fanpic,BorderLayout.CENTER);
        add(fanpanel,BorderLayout.WEST);
        add(sender,BorderLayout.EAST);
    }
    public      Fan(String title)
    {this();
        setTitle(title);
    }
    void        turnOff()
    {if (dynfan!=null)
    {
        dynfan.kill();
        dynfan=null;
        showTime();
        showSpeed();
    }
    }
    void        turnOn()
    {dynfan=new DynamicFan(fanpic,rec.getSpeed());
        showTime();
        showSpeed();
    }
    void        setSpeed(int _speed)
    {
        dynfan=new DynamicFan(fanpic,_speed);
        showSpeed();
    }
    void         setTime()
    {if (delaytask!=null)
        delaytask.cancel();
        delaytask=new Timing(rec);
        timer.schedule(delaytask,1,1000); //1s
        showTime();
    }
    void         showTime()
    {fanpanel.showTime();
    }
    void         showSpeed()
    {fanpanel.showSpeed();
    }
}


//定时器
class Timing extends TimerTask{
    Receiver rec;
    public Timing(Receiver _rec)
    {rec=_rec;
    }
    @Override
    public void run()
    {if (rec.getTime()>0)
        rec.decTime();
    else
    {cancel();
        rec.turnOff();
    }
    }
}


public class AutoFan {
    public static void main(String[] args)
    {
        Fan frame = new Fan("模拟风扇");
        frame.setDefaultCloseOperation(3);
        frame.setTitle("遥控风扇");
        frame.setSize(640,340);
        frame.setVisible(true);
    }
}