Java学习笔记之卡片式布局CardLayout

CardLayout(构造)方法：

方法	说明
public CardLayout()	创建一个间距大小为0的新卡片布局
public CardLayout(int hgap,int vgap)	创建一个具有指定水平间距和垂直间距的新卡片布局。水平间距置于左右边缘。垂直间距置于上下边缘
public void first(Container parent)	翻转到容器的第一张卡片
public void last(Contain parent)	翻转到容器的最后一张卡片
public void next(Contain parent)	翻转到指定容器的下一张卡片
public void previous(Contain parent)	翻转到指定容器的前一张卡片
public void show(Contain parent,String name)	翻转到使用addLayoutComponent添加到此布局的具有指定name的组件

示例：

package com.lc.awt;

import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Color;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class CardLayoutDemo extends JFrame {
	private JPanel pane = null;
	private JPanel p = null;
	private CardLayout card = null;
	private JButton button_1=null;
	private JButton button_2=null;
	private JButton b_1=null,b_2=null,b_3=null;
	private JPanel p_1=null,p_2=null,p_3=null; 
	public CardLayoutDemo(){
		card = new CardLayout(5,5);
		pane = new JPanel(card);
		p = new JPanel();
		button_1 = new JButton("< 上一步");
		button_2 = new JButton("下一步   >");
		b_1 = new JButton("1");
		b_2 = new JButton("2");
		b_3 = new JButton("3");
		b_1.setMargin(new Insets(2,2,2,2));
		b_2.setMargin(new Insets(2,2,2,2));
		b_3.setMargin(new Insets(2,2,2,2));
		p.add(button_1);
		p.add(b_1);
		p.add(b_2);
		p.add(b_3);
		p.add(button_2);
		p_1 = new JPanel();
		p_2 = new JPanel();
		p_3 = new JPanel();
		p_1.setBackground(Color.RED);
		p_2.setBackground(Color.BLUE);
		p_3.setBackground(Color.GREEN);
		p_1.add(new JLabel("JPanel_1"));
		p_2.add(new JLabel("JPanel_2"));
		p_3.add(new JLabel("JPanel_3"));
		pane.add(p_1,"p1");
		pane.add(p_2,"p2");
		pane.add(p_3,"p3");
	
		button_1.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				card.previous(pane);
			}
		});
		button_2.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				card.next(pane);
			}
		});
		b_1.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				card.show(pane,"p1");
			}
		});
		b_2.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				card.show(pane,"p2");
			}
		});
		b_3.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				card.show(pane,"p3");
			}
		});
		this.getContentPane().add(pane);
		this.getContentPane().add(p,BorderLayout.SOUTH);
		this.setSize(300, 200);
		this.setVisible(true);
	}
	
	
	public static void main(String[] args) {
		new CardLayoutDemo();
	}

}

运行结果：