【GUI编程学习02】布局管理器

【GUI编程学习02】布局管理器

一、流式布局

package GUIProgramming;

import java.awt.*;

public class TestFlowLayout {

    public static void main(String[] args) {
        Myframe f = new Myframe("",500,500,500,500, Color.red);

        MyPanel p1 = new MyPanel(50,100,100,100,Color.green);
        MyPanel p2 = new MyPanel(150,100,100,100,Color.gray);
        MyPanel p3 = new MyPanel(50,200,100,100,Color.yellow);
        MyPanel p4 = new MyPanel(150,200,100,100,Color.pink);

        f.setLayout(new FlowLayout()); //设置为流式布局,默认是CENTER(1)
        f.setLayout(new FlowLayout(FlowLayout.LEFT));//0
        f.setLayout(new FlowLayout(FlowLayout.RIGHT));//2
        //f.setLayout(new FlowLayout(0));
        //f.setLayout(new FlowLayout(2));
        
        f.add(p1);
        f.add(p2);
        f.add(p3);
        f.add(p4);

    }

}

二、边界布局

package GUIProgramming;

import java.awt.*;

public class TestBorderLayout {

    public static void main(String[] args) {
        frame f = new frame();

        PanelColor p1 = new PanelColor(Color.cyan);
        PanelColor p2 = new PanelColor(Color.yellow);
        PanelColor p3 = new PanelColor(Color.white);
        PanelColor p4 = new PanelColor(Color.gray);
        PanelColor p5 = new PanelColor(Color.pink);

        f.setBounds(200,200,500,500);

        //边界布局设置
        f.add(p1,BorderLayout.EAST);
        f.add(p2,BorderLayout.WEST);
        f.add(p3,BorderLayout.SOUTH);
        f.add(p4,BorderLayout.NORTH);
        f.add(p5,BorderLayout.CENTER);
        
        f.setVisible(true);

    }
}

class PanelColor extends Panel {
    public PanelColor(Color color){
        setBackground(color);
    }
}

三、表格布局

package GUIProgramming;

import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class TestGridLayout {

    public static void main(String[] args) {
        frame frame = new frame();

        PanelColor pl1 = new PanelColor(Color.cyan);
        PanelColor pl2 = new PanelColor(Color.yellow);
        PanelColor pl3 = new PanelColor(Color.white);
        PanelColor pl4 = new PanelColor(Color.gray);
        PanelColor pl5 = new PanelColor(Color.pink);
        PanelColor pl6 = new PanelColor(Color.red);

        //表格布局,自动填充
        frame.setLayout(new GridLayout(3,2));  //3行2列

        frame.add(pl1);
        frame.add(pl2);
        frame.add(pl3);
        frame.add(pl4);
        frame.add(pl5);
        frame.add(pl6);

        frame.setBounds(200,200,500,500);
        frame.setVisible(true);
        frame.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
    }
}