初入Swing全面详细解析备注

package com.service.test;

/**
 * Created by Administrator on 2018-04-04.
 */

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.URL;

public class TestJFrame {
    private static TrayIcon trayIcon = null;
    static SystemTray tray = SystemTray.getSystemTray();

    public static void main(String[] args) {
        startView();
    }


    private static void startView() {
        JFrame frame = new JFrame("****系统"); // 创建 JFrame 实例
        frame.setSize(400, 300);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocationRelativeTo(null);
        JPanel panel = new JPanel();  //面板
        frame.add(panel);
        placeComponents(panel, frame);
        windowsClick(frame);
    }

    private static void placeComponents(final JPanel panel, final JFrame frame) {
        panel.setLayout(null);
        JLabel userLabel = new JLabel("欢迎使用****系统");  //面板上面的字
        userLabel.setFont(new java.awt.Font("宋体", 0, 20));
        userLabel.setBounds(100, 10, 200, 40);
        panel.add(userLabel);
        final JButton button = new JButton("启 动");   //按钮
        button.setFont(new java.awt.Font("宋体", 0, 15));  //设置字体 是否加粗 大小
        button.setBorderPainted(false);
        button.setBorder(BorderFactory.createRaisedBevelBorder());
        button.setBounds(290, 120, 90, 25);            //设置相对页面位置 宽度  高度
        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {                //添加按钮监听事件
                XunLingApplication cRead = new XunLingApplication();
                int i = cRead.startComPort();
                if (i == 1) {
                    // 启动线程来处理收到的数据
                    cRead.start();
                }
                button.setText("已启动");
                button.setEnabled(false);

            }
        });
        panel.add(button);
        JButton button2 = new JButton("系统设置");
        button2.setBounds(1, 230, 150, 30);
        button2.setBorderPainted(false);
        button2.setFont(new java.awt.Font("宋体", 0, 13));
        button2.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                newSystemView();
                frame.dispose();
            }
        });
        panel.add(button2);

    }

    private static void newSystemView() {
        final JFrame frame = new JFrame("*****系统设置");
        frame.setSize(400, 300);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocationRelativeTo(null);
        JPanel panel = new JPanel();
        frame.add(panel);
        panel.setLayout(null);

        JLabel userLabel = new JLabel("系统设置");
        userLabel.setFont(new java.awt.Font("宋体", 0, 20));
        userLabel.setBounds(10, 10, 200, 40);
        panel.add(userLabel);

        JButton button2 = new JButton("返回");
        button2.setBounds(330, 15, 60, 20);
        button2.setBorderPainted(false);
        button2.setFont(new java.awt.Font("宋体", 0, 13));
        panel.add(button2);
        button2.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                startView();
                frame.dispose();
            }
        });


        JLabel userLabel2 = new JLabel("***地址:");
        userLabel2.setFont(new java.awt.Font("宋体", 0, 15));
        userLabel2.setBounds(10, 100, 140, 30);
        panel.add(userLabel2);


        JTextField jtext1 = new JTextField("");
        jtext1.setBounds(120, 108, 200, 20);
        jtext1.setFont(new java.awt.Font("宋体", 0, 20));
        panel.add(jtext1);

        JButton button = new JButton("保存");
        button.setBounds(245, 140, 70, 20);
        button.setBorderPainted(false);
        button.setFont(new java.awt.Font("宋体", 0, 13));
        panel.add(button);

        windowsClick(frame);
    }

    private static void windowsClick(final JFrame frame) {
        frame.setVisible(true);     // 使窗口可见
        frame.setResizable(false);  //使窗口大小不能调整
        frame.addWindowListener(new WindowAdapter() { // 窗口关闭事件
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }

            public void windowIconified(WindowEvent e) { // 窗口最小化事件
                frame.setVisible(false);        //隐藏窗口
                new TestJFrame().miniTray(frame);
            }
        });
    }

    private void miniTray(final JFrame frame) {   // 窗口最小化到任务栏托盘
        URL url = TestJFrame.class.getClassLoader().getResource("timg.jpg");
        ImageIcon trayImg = null;
        if (url == null) {
            url = TestJFrame.class.getClassLoader().getResource("resources/timg.jpg");
            if (url == null) {
                trayImg = new ImageIcon(" ");
            } else {
                trayImg = new ImageIcon(url);
            }
        } else {
            trayImg = new ImageIcon(url); // 托盘图标
        }
        trayIcon = new TrayIcon(trayImg.getImage(), "****系统", new PopupMenu());
        trayIcon.setImageAutoSize(true);
        trayIcon.addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
                if (e.getClickCount() == 2) {  // 单击 1 双击 2
                    tray.remove(trayIcon);
                    frame.setVisible(true);
                    frame.setExtendedState(JFrame.NORMAL);
                    frame.toFront();
                }
            }
        });
        try {
            tray.add(trayIcon);
        } catch (AWTException e1) {
            e1.printStackTrace();
        }
    }


}