用Java创建动画4x4网格 [英] Creating an animated 4x4 grid in Java

问题描述

我需要在Java中创建一个4 x 4的矩形网格，然后我需要这些矩形来改变序列中的颜色。

我从来没有做过任何事情之前的图形工作，只是控制台中的东西。

我开始做一些研究并创建了650 x 650 JFrame 将矩形放入。
之后我使用 GridLayout 并设法使用窗口从按钮创建一个4 x 4网格。 JButton 这是不对的。

我将如何创建矩形？使用带有++的循环为动画计时是否正确？

在stackoverflow和google上搜索时，我找不到任何符合我需求的东西。对不起，如果这是一个愚蠢的问题。我是新来的，我正在做一个正面的。

这是我希望它看起来像，每个矩形在一个时间间隔内改变颜色

解决方案

来自@ Eng.Fouad

  import java.awt.BorderLayout; 
 import java.awt.event.ActionEvent; 
 import java.awt.event.ActionListener; 
 import java.awt.Color; 
 
 import javax.swing.BorderFactory; 
 import javax.swing.JFrame; 
 import javax.swing.JLabel; 
 import javax.swing.JPanel; 
 import javax.swing.SwingUtilities; 
 import javax.swing.Timer; 
 
公共类SimpleTimer扩展JFrame 
 {
私有JLabel标签; 
私人定时器计时器; 
 private int counter = 3; //持续时间
 private int delay = 1000; //每1秒
私有静态最终长串行版本号= 1L; 
 private颜色c = Color.RED; 
 private boolean red = true; 
 private boolean stop = false; 
 int i = counter; 
 
 public SimpleTimer（）
 {
 super（Simple Timer）; 
 setDefaultCloseOperation（EXIT_ON_CLOSE）; 
 
 label = new JLabel（Wait for+ counter +sec，JLabel.CENTER）; 
 JPanel contentPane =（JPanel）getContentPane（）; 
 contentPane.add（label，BorderLayout.CENTER）; 
 contentPane.setBorder（BorderFactory.createEmptyBorder（5,5,5,5））; 
 pack（）; 
 
 timer = new Timer（延迟，动作）; 
 timer.setInitialDelay（0）; 
 timer.start（）; 
 setVisible（true）; 
} 
 
 ActionListener action = new ActionListener（）
 {
 @Override 
 public void actionPerformed（ActionEvent event）
 {
 if（i == 0）
 {
 timer.stop（）; 
 stop = true; 
 i = counter; 
 timer = new Timer（延迟，动作）; 
 timer.setInitialDelay（0）; 
 timer.start（）; 
} 
其他
 {
 c =红色？ Color.GREEN：Color.RED; 
 red =！red; 
 label.setBackground（c）; 
 label.setOpaque（true）; 
 label.setText（等待+ i +秒）; 
 i--; 
} 
} 
}; 
 
 public static void main（String [] args）
 {
 SwingUtilities.invokeLater（new Runnable（）
 {
 @Override 
 public void run（）
 {
 new SimpleTimer（）; 
} 
}）; 
} 
} 
  

I need to create a 4 x 4 grid of rectangles in Java, I then need these rectangles to change color in a sequence.

I've never done any graphical work before, just things in the console.

I started by doing some research and created a 650 x 650 JFrame to put the rectangles in. After that I used GridLayout and managed to create a 4 x 4 grid out of buttons using window.JButton which wasn't right.

How would I create rectangles instead? And would it be right to use for loops with ++ to time the animation?

I couldn't find anything that worked for my needs when searching on stackoverflow and google. Sorry if this is a stupid question. I'm new to this and I'm doing for an apprecticeship.

Here's how I would like it to look like, with each rectangle changing color in a time interval

解决方案

From @Eng.Fouad answer (so give him credit and upvote his answer too), I made some changes, this example shows how to use a Swing Timer which changes color every second from green to red. I'm using a simple JLabel for demonstration purposes, take this logic into the GridLayout you have:

Here are some screen shots on how it looks:

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.Color;

import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.Timer;

public class SimpleTimer extends JFrame
{
    private JLabel label;
    private Timer timer;
    private int counter = 3; // the duration
    private int delay = 1000; // every 1 second
    private static final long serialVersionUID = 1L;
    private Color c = Color.RED;
    private boolean red = true;
    private boolean stop = false;
    int i = counter;

    public SimpleTimer()
    {
        super("Simple Timer");
        setDefaultCloseOperation(EXIT_ON_CLOSE);

        label = new JLabel("Wait for " + counter + " sec", JLabel.CENTER);
        JPanel contentPane = (JPanel) getContentPane();
        contentPane.add(label, BorderLayout.CENTER);
        contentPane.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
        pack();

        timer = new Timer(delay, action);
        timer.setInitialDelay(0);
        timer.start();
        setVisible(true);
    }

    ActionListener action = new ActionListener()
    {   
        @Override
        public void actionPerformed(ActionEvent event)
        {
            if(i == 0)
            {
                timer.stop();
                stop = true;
                i = counter;
                timer = new Timer(delay, action);
                timer.setInitialDelay(0);
                timer.start();
            }
            else
            {
                c = red ? Color.GREEN : Color.RED;
                red = !red;
                label.setBackground(c);
                label.setOpaque(true);
                label.setText("Wait for " + i + " sec");
                i--;
            }
        }
    };

    public static void main(String[] args)
    {
        SwingUtilities.invokeLater(new Runnable()
        {
            @Override
            public void run()
            {
                new SimpleTimer();
            }
        });
    }
}

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