java在线聊天项目 swt可视化窗口Design 好友列表窗口

熟练使用各种布局方式

FlowLayout 流布局 left center right等

BorderLayout 边框布局 east west sorth north center

AbsoluteLayout 绝对布局或空布局 任意拖拽

可以使用各种布局的嵌套效果，达到需要的目标

布局后可以在基本布局基础上添加新的JPanel，然后设置JPanel新的布局方式

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制作好友列表窗口

首先，设置总的布局方式为 BorderLayout 

上边放用户的图标，用户名和用户的名言,然后左边添加JLable

JLable lable=new JLable(new ImageIcon("Images/logo.jpg"));

添加图片

label.setPreferredSize(new Dimension(74,74));

设置标签尺寸

先添加一个JPanel,使用BorderLayout

下边放三个按钮，

先添加一个JPanel，使用BorderLayout，然后左边添加JPanel使用FlowLayout布局，右边添加JPanel使用BorderLayout布局

左边布局添加两个按钮，设置axis为left

右边布局添加一个按钮，放到east

中间放一个选项卡

选项卡 JTabbedPane ，然后在其上添加3个JPanel，

分别命名为好友列表 群聊 会话

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好友列表窗口效果图如下：

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为该窗口设置皮肤

JFrame.setDefaultLookAndFeelDecorated(true);

JDialog.setDefaultLookAndFeelDecorated(true);

UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel");

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该窗口全部代码如下：

package com.swift;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class FriendsDialog extends JDialog {
    
    public static void main(String args[]) {
        
        JFrame.setDefaultLookAndFeelDecorated(true);
        JDialog.setDefaultLookAndFeelDecorated(true);
        
        try {
            UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel");
        } catch (ClassNotFoundException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (InstantiationException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (IllegalAccessException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (UnsupportedLookAndFeelException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
        
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    FriendsDialog dialog = new FriendsDialog();
                    dialog.addWindowListener(new WindowAdapter() {
                        public void windowClosing(WindowEvent e) {
                            System.exit(0);
                        }
                    });
                    dialog.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    public FriendsDialog() {
        super();
        setTitle("飞燕聊天");
        setBounds(100, 100, 247, 581);

        final JPanel panel = new JPanel();
        panel.setLayout(new BorderLayout());
        getContentPane().add(panel, BorderLayout.NORTH);

        final JLabel label = new JLabel(new ImageIcon("Images/logo.jpg"));
        label.setText("New JLabel");
        panel.add(label, BorderLayout.WEST);
        label.setPreferredSize(new Dimension(74,74));

        final JPanel panel_1 = new JPanel();
        panel_1.setLayout(new BorderLayout());
        panel.add(panel_1, BorderLayout.CENTER);

        final JLabel advancingSwiftLabel = new JLabel();
        advancingSwiftLabel.setText("Advancing Swift");
        panel_1.add(advancingSwiftLabel, BorderLayout.CENTER);

        final JLabel neverWasterLabel = new JLabel();
        neverWasterLabel.setText("Never waste time any more");
        panel_1.add(neverWasterLabel, BorderLayout.SOUTH);

        final JPanel panel_2 = new JPanel();
        panel_2.setLayout(new BorderLayout());
        getContentPane().add(panel_2, BorderLayout.SOUTH);

        final JPanel panel_3 = new JPanel();
        final FlowLayout flowLayout = new FlowLayout();
        flowLayout.setAlignment(FlowLayout.LEFT);
        panel_3.setLayout(flowLayout);
        panel_2.add(panel_3);

        final JButton button = new JButton();
        panel_3.add(button);
        button.setHorizontalTextPosition(SwingConstants.LEFT);
        button.setHorizontalAlignment(SwingConstants.LEFT);
        button.setText("设置");

        final JButton button_1 = new JButton();
        panel_3.add(button_1);
        button_1.setText("查找");

        final JPanel panel_4 = new JPanel();
        panel_2.add(panel_4, BorderLayout.EAST);

        final JButton button_2 = new JButton();
        panel_4.add(button_2);
        button_2.setText("退出");

        final JTabbedPane tabbedPane = new JTabbedPane();
        getContentPane().add(tabbedPane, BorderLayout.CENTER);

        final JPanel panel_5 = new JPanel();
        tabbedPane.addTab("好友列表", null, panel_5, null);

        final JPanel panel_6 = new JPanel();
        tabbedPane.addTab("群聊", null, panel_6, null);

        final JPanel panel_7 = new JPanel();
        tabbedPane.addTab("聊天记录", null, panel_7, null);
        final FlowLayout flowLayout_1 = new FlowLayout();
        flowLayout_1.setAlignment(FlowLayout.RIGHT);
    }

}