关于GridBagLayout 布局管理

yuhowe 2007-11-03 01:18:15

java api 文档我看过了GridBagLayout 的例子了，那个例子最后的button8 是在前面跨列的，我想知道怎么在后面跨列，
更改成从右到左的顺序也能实现在后面跨列，但是我不知道怎么改顺序，希望哪位高人指点一下，谢谢！

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tuoxie007 2007-11-04

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一楼的
顶以下！！

yuhowe 2007-11-04

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非常感谢 johnsoncr

lihaifeng0412 2007-11-03

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顶下

fayewan 2007-11-03

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这个你自己写个小程序就可以了,很简单的,多试几遍.

johnsoncr 2007-11-03

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import java.awt.*;

import java.awt.event.*;

import javax.swing.*;



public class GridBagLayoutDemo {

     

    public GridBagLayoutDemo() {

        

        JFrame f = new JFrame();

    	f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    	

        JButton b1 = new JButton("Button1");

        JButton b2 = new JButton("Button2");

        JButton b3 = new JButton("Button3");

        JButton b4 = new JButton("Button4");

        JButton b5 = new JButton("Button5");

        JButton b6 = new JButton("Button6");

        JButton b7 = new JButton("Button7");

        JButton b8 = new JButton("Button8");

        JButton b9 = new JButton("Button9");

        JButton b10 = new JButton("Button10");

 

        GridBagConstraints c = new GridBagConstraints();

    	GridBagLayout gridbag = new GridBagLayout();

        f.setLayout(gridbag);

        

              

        c.weightx = 1.0 ;

        c.fill = GridBagConstraints.BOTH;

        gridbag.setConstraints(b1,c); 

        gridbag.setConstraints(b2,c);

        gridbag.setConstraints(b3,c);

        

        f.add(b1);

        f.add(b2);

        f.add(b3);

        

        c.gridwidth = GridBagConstraints.REMAINDER;

        gridbag.setConstraints(b4,c);

        gridbag.setConstraints(b5,c);

        f.add(b4);

        f.add(b5);

        

        c.gridwidth = GridBagConstraints.RELATIVE;

        gridbag.setConstraints(b6,c);

        f.add(b6);

        

        c.gridwidth = GridBagConstraints.REMAINDER ;

        gridbag.setConstraints(b7,c);

        f.add(b7);

        

        c.gridwidth = GridBagConstraints.RELATIVE;

        gridbag.setConstraints(b9,c);

        f.add(b9);

        

        c = new GridBagConstraints();        

        c.fill = GridBagConstraints.BOTH;

        c.gridx = 3;                         //可以用数字来表示

        c.gridy = 3;

        c.gridheight = 2;

        gridbag.setConstraints(b8,c);

        f.add(b8);

        

        c = new GridBagConstraints();

        c.fill = GridBagConstraints.BOTH;

        c.gridx = 0;

        c.gridy = 4;

        c.gridwidth = 3;

        c.gridheight = 1;

        gridbag.setConstraints(b10,c);

        f.add(b10);

        

               

        f.pack();

        f.show();

       

        

    }



    public static void main(String args[]) {

    

        new GridBagLayoutDemo();

    }

}