原地移除面板----1

最新推荐文章于 2025-05-12 19:50:15 发布

原创最新推荐文章于 2025-05-12 19:50:15 发布 · 424 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#exception #import #class #null #c

本文介绍了一个使用Java Swing实现的简单应用程序，该程序能够在不同的面板之间进行切换，通过按钮触发面板的替换并保持布局不变。

package removepanel;

import java.awt.BorderLayout;
import java.awt.Dimension;

import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.Rectangle;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.Graphics;
import java.awt.*;

/**
* Title: 
*
* Description: 
*
* Copyright: Copyright (c) 2007
*
* Company: 
*
* @author not attributable
* @version 1.0
*/
public class Frame1 extends JFrame {
 JPanel contentPane;
 JPanel jPanel1 = new JPanel();
 JButton jButton1 = new JButton();
 JButton jButton2 = new JButton();
 JButton jButton3 = new JButton();
 public Frame1() {
 try {
 setDefaultCloseOperation(EXIT_ON_CLOSE);
 jbInit();
 } catch (Exception exception) {
 exception.printStackTrace();
 }
 }

    /**
     * Component initialization.
     *
     * @throws java.lang.Exception
     */
    private void jbInit() throws Exception {
        contentPane = (JPanel) getContentPane();
        contentPane.setLayout(null);
        setSize(new Dimension(500, 400));
        setTitle("Frame Title");
        jPanel1.setBorder(BorderFactory.createEtchedBorder());
        jPanel1.setBounds(new Rectangle(18, 16, 369, 213));
        jButton1.setBounds(new Rectangle(38, 254, 151, 42));
        jButton1.setText("jButton1");
        jButton1.addActionListener(new Frame1_jButton1_actionAdapter(this));
        jButton2.setText("jButton2");
        jButton3.setBounds(new Rectangle(207, 255, 171, 41));
        jButton3.setText("jButton3");
        jButton3.addActionListener(new Frame1_jButton3_actionAdapter(this));
        contentPane.add(jPanel1);
        jPanel1.add(jButton2);
        contentPane.add(jButton1);
        contentPane.add(jButton3);
        panelWidth = jPanel1.getWidth();
        panelHeight = jPanel1.getHeight();
        panelX = jPanel1.getX();
        panelY = jPanel1.getY();
    }

    //创建新面板
    JPanel pane = new Panel1();
    //创建新面板
    JPanel pane1 = new Panel2();
    int panelWidth = 0;
    int panelHeight = 0;
    int panelX = 0;
    int panelY = 0;
    public void jButton1_actionPerformed(ActionEvent e) {
            //设置面板的的大小与以前的面板大小一致
            pane.setSize(panelWidth, panelHeight);
            //设置面板边框
            pane.setBorder(BorderFactory.createEtchedBorder());
            //设置面板的位置与以前的面板位置一致
            pane.setLocation(panelX, panelY);
            //设置重画
            Graphics Gra = contentPane.getGraphics();
            //移出面板
            contentPane.remove(jPanel1);
            //添加面板
            contentPane.add(pane);
            //更新面板
            contentPane.update(Gra);
            this.show();
            jPanel1 = pane;
    }

    public void jButton3_actionPerformed(ActionEvent e) {
            //设置面板的的大小与以前的面板大小一致
            pane1.setSize(panelWidth, panelHeight);
            //设置面板边框
            pane1.setBorder(BorderFactory.createEtchedBorder());
            //设置面板的位置与以前的面板位置一致
            pane1.setLocation(panelX, panelY);
            //设置重画
            Graphics Gra = contentPane.getGraphics();
            //移出面板
            contentPane.remove(jPanel1);
            //添加面板
            contentPane.add(pane1);
            //更新面板
            contentPane.update(Gra);
            this.show();
            jPanel1 = pane1;
    }
}

class Frame1_jButton3_actionAdapter implements ActionListener {
    private Frame1 adaptee;
    Frame1_jButton3_actionAdapter(Frame1 adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jButton3_actionPerformed(e);
    }
}

class Frame1_jButton1_actionAdapter implements ActionListener {
    private Frame1 adaptee;
    Frame1_jButton1_actionAdapter(Frame1 adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jButton1_actionPerformed(e);
    }
}

public class Panel1 extends JPanel {
    public Panel1() {
        try {
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    private void jbInit() throws Exception {
        this.setLayout(null);
        jButton1.setBounds(new Rectangle(24, 13, 229, 56));
        jButton1.setText("jButton1");
        this.add(jButton1);
    }

JButton jButton1 = new JButton();
}

public class Panel2 extends JPanel {
BorderLayout borderLayout1 = new BorderLayout();
JButton jButton1 = new JButton();

    public Panel2() {
        try {
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    private void jbInit() throws Exception {
        this.setLayout(borderLayout1);
        jButton1.setText("jButton1");
        this.add(jButton1, java.awt.BorderLayout.NORTH);
    }
}