javaSwing布局

布局怎么设置通过 获取container 然后container.setLoot(布局样式)

1.绝对布局也叫null布局

2.流布局 FlowLayout

3.边界布局BorderLayout

覆盖特点

4.网格布局GridLayout

5.网格包组件GridBagLayout

import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Insets; import javax.swing.JButton; import javax.swing.JFrame; public class ExampleFrame_03 extends JFrame { / * */ private static final long serialVersionUID = 1L; public static void main(String args[]) { ExampleFrame_03 frame = new ExampleFrame_03(); frame.setVisible(true); } public ExampleFrame_03() { super(); setTitle("使用网格组布局管理器"); getContentPane().setLayout(new GridBagLayout()); setBounds(100, 100, 500, 170); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); final JButton button = new JButton("A"); final GridBagConstraints gridBagConstraints = new GridBagConstraints(); gridBagConstraints.gridy = 0;// 起始点为第1行 gridBagConstraints.gridx = 0;// 起始点为第1列 gridBagConstraints.weightx = 10;// 第一列的分布方式为10% gridBagConstraints.fill = GridBagConstraints.HORIZONTAL; getContentPane().add(button, gridBagConstraints); final JButton button_1 = new JButton("B"); final GridBagConstraints gridBagConstraints_1 = new GridBagConstraints(); gridBagConstraints_1.gridy = 0; gridBagConstraints_1.gridx = 1; // 设置组件左侧的最小距离 gridBagConstraints_1.insets = new Insets(0, 5, 0, 0); gridBagConstraints_1.weightx = 20;// 第一列的分布方式为20% gridBagConstraints_1.fill = GridBagConstraints.HORIZONTAL; getContentPane().add(button_1, gridBagConstraints_1); final JButton button_2 = new JButton("C"); final GridBagConstraints gridBagConstraints_2 = new GridBagConstraints(); gridBagConstraints_2.gridy = 0;// 起始点为第1行 gridBagConstraints_2.gridx = 2;// 起始点为第3列 gridBagConstraints_2.gridheight = 2;// 组件占用两行 gridBagConstraints_2.insets = new Insets(0, 5, 0, 0); gridBagConstraints_2.weightx = 30;// 第一列的分布方式为30% // 同时调整组件的宽度和高度 gridBagConstraints_2.fill = GridBagConstraints.BOTH; getContentPane().add(button_2, gridBagConstraints_2); final JButton button_3 = new JButton("D"); final GridBagConstraints gridBagConstraints_3 = new GridBagConstraints(); gridBagConstraints_3.gridy = 0; gridBagConstraints_3.gridx = 3; gridBagConstraints_3.gridheight = 4; // 设置组件左侧和右侧的最小距离 gridBagConstraints_3.insets = new Insets(0, 5, 0, 5); gridBagConstraints_3.weightx = 40;// 第一列的分布方式为40% gridBagConstraints_3.fill = GridBagConstraints.BOTH; getContentPane().add(button_3, gridBagConstraints_3); final JButton button_4 = new JButton("E"); final GridBagConstraints gridBagConstraints_4 = new GridBagConstraints(); gridBagConstraints_4.gridy = 1; gridBagConstraints_4.gridx = 0; gridBagConstraints_4.gridwidth = 2;// 组件占用两列 // 设置组件上方的最小距离 gridBagConstraints_4.insets = new Insets(5, 0, 0, 0); // 只调整组件的宽度 gridBagConstraints_4.fill = GridBagConstraints.HORIZONTAL; getContentPane().add(button_4, gridBagConstraints_4); final JButton button_5 = new JButton("F"); final GridBagConstraints gridBagConstraints_5 = new GridBagConstraints(); gridBagConstraints_5.gridy = 2;// 起始点为第3行 gridBagConstraints_5.gridx = 0;// 起始点为第1列 gridBagConstraints_5.insets = new Insets(5, 0, 0, 0); gridBagConstraints_5.fill = GridBagConstraints.HORIZONTAL; getContentPane().add(button_5, gridBagConstraints_5); final JButton button_6 = new JButton("G"); final GridBagConstraints gridBagConstraints_6 = new GridBagConstraints(); gridBagConstraints_6.gridy = 2; gridBagConstraints_6.gridx = 1; gridBagConstraints_6.gridwidth = 2;// 组件占用两列 gridBagConstraints_6.gridheight = 2;// 组件占用两行 gridBagConstraints_6.insets = new Insets(5, 5, 0, 0); gridBagConstraints_6.fill = GridBagConstraints.BOTH;// 只调整组件的高度 // gridBagConstraints_6.fill = GridBagConstraints.VERTICAL;// 只调整组件的高度 // gridBagConstraints_6.ipadx = 30;// 增加组件的首选宽度 // gridBagConstraints_6.anchor = GridBagConstraints.EAST;// 显示在东方 getContentPane().add(button_6, gridBagConstraints_6); final JButton button_7 = new JButton("H"); final GridBagConstraints gridBagConstraints_7 = new GridBagConstraints(); gridBagConstraints_7.gridy = 3; gridBagConstraints_7.gridx = 0; gridBagConstraints_7.insets = new Insets(5, 0, 0, 0); gridBagConstraints_7.fill = GridBagConstraints.HORIZONTAL; getContentPane().add(button_7, gridBagConstraints_7); // } } 

5-1填充方式

5-2方位填充

5-3insets属性

5-4放大缩小