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按顺序改变颜色.

我以前从未做过任何图形工作，只在控制台中做过.

我首先做了一些研究并创建了一个 650 x 650 JFrame 来放置矩形.之后，我使用了 GridLayout 并设法使用 window.JButton 从按钮中创建了一个 4 x 4 网格，这是不正确的.

我将如何创建矩形?使用带有 ++ 的 for 循环来为动画计时是否正确?

在 stackoverflow 和 google 上搜索时，我找不到任何适合我需要的东西.对不起，如果这是一个愚蠢的问题.我是新来的，我正在做实习.

这是我想要的样子，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;导入 java.awt.event.ActionEvent;导入 java.awt.event.ActionListener;导入 java.awt.Color;导入 javax.swing.BorderFactory;导入 javax.swing.JFrame;导入 javax.swing.JLabel;导入 javax.swing.JPanel;导入 javax.swing.SwingUtilities;导入 javax.swing.Timer;公共类 SimpleTimer 扩展 JFrame{私人 JLabel 标签；私人定时器定时器；私有整数计数器 = 3;//持续时间私人整数延迟 = 1000;//每 1 秒private static final long serialVersionUID = 1L;私有颜色 c = Color.RED;私人布尔红色 = 真；私人布尔停止=假；int i = 计数器；公共 SimpleTimer(){super("简单定时器");setDefaultCloseOperation(EXIT_ON_CLOSE);label = new JLabel("等待" + counter + " sec", JLabel.CENTER);JPanel contentPane = (JPanel) getContentPane();contentPane.add(label, BorderLayout.CENTER);contentPane.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));盒();定时器 = 新定时器(延迟，动作)；timer.setInitialDelay(0);定时器开始()；设置可见(真)；}ActionListener action = new ActionListener(){@覆盖public void actionPerformed(ActionEvent 事件){如果(我 == 0){定时器停止()；停止 = 真;我 = 计数器；定时器 = 新定时器(延迟，动作)；timer.setInitialDelay(0);定时器开始()；}别的{c = 红色?颜色.绿色:颜色.红色；红色 = ！红色；label.setBackground(c);label.setOpaque(true);label.setText("等待" + i + " 秒");一世 - ;}}};public static void main(String[] args){SwingUtilities.invokeLater(new Runnable(){@覆盖公共无效运行(){新的简单定时器()；}});}}

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();
            }
        });
    }
}

这篇关于用 Java 创建动画 4x4 网格的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！