Question

java GridBagLayout 布局 速度急等很简单的

帮我写一个GridBagLayout 布局
3个控件jContentPane,jPane,jPane1
要求不管Frame的大小怎么变
jPane始终占据jContentPane的1/3 用别的颜色标出来
jPane1始终占据jContentPane的1/3 用别的颜色标出来

Answer 1

还有三分之一呢需要再加个panel。
import java.awt.Color;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.WindowConstants;

public class test extends JFrame {

/**
* @param args
*/
public test(){
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
this.setSize(400,300 );
JPanel jContentPane=new JPanel();
jContentPane.setBackground(Color.BLACK);
JPanel jPane=new JPanel();
JPanel jPane1=new JPanel();
JPanel jPane2=new JPanel();
jPane.setBackground(Color.RED );
jPane1.setBackground(Color.BLUE);

this.add(jContentPane);
GridBagLayout gbl=new GridBagLayout();
GridBagConstraints gbc=new GridBagConstraints();
gbc.gridheight=3 ;
gbc.gridwidth=GridBagConstraints.REMAINDER;
gbc.weightx=1.0;
gbc.weighty=1.0;
gbc.fill = GridBagConstraints.BOTH;

jContentPane.setLayout(gbl);
gbl.setConstraints(jPane1,gbc);
gbl.setConstraints(jPane,gbc);
gbl.setConstraints(jPane2, gbc);
jContentPane.add(jPane);
jContentPane.add(jPane1);
jContentPane.add(jPane2);
}
public static void main(String[] args) {
new test().setVisible(true);

}

}