[游戏开发]Java swing 模仿音乐播放器界面(JToolBar)

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package guidemo5;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;

public class Demo_MusicPlayer {

    public static void main(String[] args) {
        WindowShow demo = new WindowShow();
        demo.init();
    }

}

class WindowShow{
    private int width = 600;
    private int height = 500;
    private Toolkit tool = Toolkit.getDefaultToolkit();
    private Dimension dimension = tool.getScreenSize();
    private int scnWidth = dimension.width;
    private int scnHeight = dimension.height;

    private JFrame frame = new JFrame("音乐播放器");
    private JTextArea textArea = new JTextArea(20,20);
    private JScrollPane scrollPane = new JScrollPane(textArea);
    private JToolBar toolBar = new JToolBar("工具条",JToolBar.HORIZONTAL);
//    private JButton pre =  new JButton("上一曲");
//    private JButton stop = new JButton("暂停播放");
//    private JButton next = new JButton("下一曲");

    private Action pre = new AbstractAction("上一曲") {
        @Override
        public void actionPerformed(ActionEvent e) {
            textArea.append("上一曲\n");
        }
    };

    private Action stop = new AbstractAction("暂停播放") {
        @Override
        public void actionPerformed(ActionEvent e) {
            textArea.append("暂停播放\n");
        }
    };

    private Action next = new AbstractAction("下一曲") {
        @Override
        public void actionPerformed(ActionEvent e) {
            textArea.append("下一曲\n");
        }
    };

    public void init(){
        frame.setBounds((scnWidth-width)/2,(scnHeight-height)/2,width,height);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        toolBar.add(pre);
        toolBar.addSeparator();
        toolBar.add(stop);
        toolBar.addSeparator();
        toolBar.add(next);

        toolBar.setFloatable(true);
        frame.add(scrollPane);
        frame.add(toolBar,BorderLayout.NORTH);

        frame.setVisible(true);
    }

}

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