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
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
好友列表窗口效果图如下:
为该窗口设置皮肤
JFrame.setDefaultLookAndFeelDecorated(true);
JDialog.setDefaultLookAndFeelDecorated(true);
UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel");
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);
}
}
Never waste time any more, Never old man be a yong man