我正在尝试使用Java Swing制作游戏Simon。但是，我无法弄清楚如何更改JButton的背景颜色，等待几秒钟，然后将背景颜色更改回原始颜色。虽然有几个other questions建议使用Swing Timers，但我不确定如何在现有代码中成功实现这些。
我试图简单地使用Thread.sleep（）以便在更改颜色之前暂停2秒，但颜色似乎没有改变。
这是我目前的代码：
import java.util.*;
import java.util.Random;
import java.util.concurrent.TimeUnit;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.Timer;
import javax.swing.border.*;
public class SimonGame extends JFrame{
private JButton begin;
Color dullRed = new Color(255, 128, 128);
Color dullYellow = new Color(255, 255, 128);
Color dullBlue = new Color(128, 128, 255);
Color dullGreen = new Color(128, 255, 128);
Color backgroundColor = new Color(1,1,1);
private JButton red;
private JButton yellow;
private JButton blue;
private JButton green;
// no-argument constructor
public SimonGame()
{
createUserInterface();
}
// create and position GUI components; register event handlers
private void createUserInterface()
{
// get content pane for attaching GUI components
Container contentPane = getContentPane();
// enable explicit positioning of GUI components
contentPane.setLayout( null );
begin = new JButton();
begin.setBounds( 200,100,200,50 );
begin.setText("Begin Game");
contentPane.add( begin );
begin.addActionListener(
new ActionListener() // anonymous inner class
{
// event handler called when submitJButton is pressed
public void actionPerformed( ActionEvent event )
{
try {
createPattern();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} // end anonymous inner class
); // end call to addActionListener
red = new JButton();
red.setBounds( 300,300,100,100 );
red.setBackground(dullRed);
red.setBorder(null);
contentPane.add( red );
red.addActionListener(
new ActionListener() // anonymous inner class
{
// event handler called when submitJButton is pressed
public void actionPerformed( ActionEvent event )
{
//submitJButtonActionPerformed( event );
}
} // end anonymous inner class
); // end call to addActionListener
yellow = new JButton();
yellow.setBounds( 300,200,100,100 );
yellow.setBackground(dullYellow);
yellow.setBorder(null);
contentPane.add( yellow );
yellow.addActionListener(
new ActionListener() // anonymous inner class
{
// event handler called when submitJButton is pressed
public void actionPerformed( ActionEvent event )
{
//submitJButtonActionPerformed( event );
}
} // end anonymous inner class
); // end call to addActionListener
green = new JButton();
green.setBounds( 200,300,100,100 );
green.setBackground(dullGreen);
green.setBorder(null);
contentPane.add( green );
green.addActionListener(
new ActionListener() // anonymous inner class
{
// event handler called when submitJButton is pressed
public void actionPerformed( ActionEvent event )
{
//submitJButtonActionPerformed( event );
}
} // end anonymous inner class
); // end call to addActionListener
blue = new JButton();
blue.setBounds( 200,200,100,100 );
blue.setBackground(dullBlue);
blue.setBorder(null);
contentPane.add( blue );
blue.addActionListener(
new ActionListener() // anonymous inner class
{
// event handler called when submitJButton is pressed
public void actionPerformed( ActionEvent event )
{
//submitJButtonActionPerformed( event );
}
} // end anonymous inner class
); // end call to addActionListener
setTitle( "Simon Game" ); // set title bar string
setSize( 600, 600 ); // set window size
setVisible( true );
}
private void setDefaultColors(){
red.setBackground(dullRed);
yellow.setBackground(dullYellow);
blue.setBackground(dullBlue);
green.setBackground(dullGreen);
}
private void createPattern() throws InterruptedException
{
Random rand = new Random();
int iter = 4;
int generatedPattern[] = new int[iter];
for(int i = 0; i<iter; i++)
{
int randomColor = rand.nextInt(4) +1;
generatedPattern[i] = randomColor;
switch(randomColor)
{
case 1:
red.setBackground(Color.RED);
Thread.sleep(2000);
red.setBackground(dullRed);
break;
case 2:
yellow.setBackground(Color.YELLOW);
Thread.sleep(2000);
yellow.setBackground(dullYellow);
break;
case 3:
blue.setBackground(Color.BLUE);
Thread.sleep(2000);
blue.setBackground(dullBlue);
break;
case 4:
green.setBackground(Color.GREEN);
Thread.sleep(2000);
green.setBackground(dullGreen);
break;
default:
System.out.print("The program is super broken");
break;
}
}
}
public static void main( String[] args )
{
SimonGame application = new SimonGame();
application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
} // end method main
}
我非常感谢任何协助。
谢谢。