CardLayout(显示图片)

最新推荐文章于 2023-06-29 09:50:20 发布

置顶 Awbeci

最新推荐文章于 2023-06-29 09:50:20 发布

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CC 4.0 BY-SA版权

文章标签： myeclipse image button import layout string

本文链接：https://blog.youkuaiyun.com/zhangwei900808/article/details/6860257

本文展示了一个使用Java Swing实现的简单应用，该应用通过CardLayout管理三个图像面板的切换，用户可以通过按钮进行上一张和下一张的切换操作。

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源代码：

package Test12;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Test04 extends JFrame implements ActionListener{
private CardLayout cardlayout;
private FlowLayout layout;
private Icon icon1,icon2,icon3;
private JLabel label[]=new JLabel[3];
private JPanel button,image;
private JButton previous=new JButton("上一张");
private JButton next=new JButton("下一张");
//private String name[]={"注意落石","车辆故障","禁止左转","最高限速"};
private Container c;
public Test04()
{
  super("This is test04.java");
  c=getContentPane();
  cardlayout=new CardLayout();

  image=new JPanel();
  image.setLayout(cardlayout);
  icon1=new ImageIcon("E:\\MyEclipse9.0_Workspaces\\N012\\src\\Test12\\1.gif");
  icon2=new ImageIcon("E:\\MyEclipse9.0_Workspaces\\N012\\src\\Test12\\2.gif");
  icon3=new ImageIcon("E:\\MyEclipse9.0_Workspaces\\N012\\src\\Test12\\3.gif");
  label[0]=new JLabel(icon1,SwingConstants.LEFT);
  label[1]=new JLabel(icon2,SwingConstants.LEADING);
  label[2]=new JLabel(icon3,SwingConstants.LEADING);
  image.add(label[0]);
  image.add(label[1]);
  image.add(label[2]);

  button=new JPanel();
  button.add(previous);
  button.add(next);

  layout=new FlowLayout(FlowLayout.CENTER);
  c.setLayout(layout);
  c.add(button);
  c.add(image);

  previous.addActionListener(this);
  next.addActionListener(this);
  setSize(300,150);
  setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
  if(e.getSource()==previous)
   cardlayout.previous(image);
  if(e.getSource()==next)
   cardlayout.next(image);
}
public static void main(String args[])
{
  Test04 app=new Test04();
  app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}