返回/主頁按鈕[Java]

Question

我之前嘗試過這種方法，但是沒有成功。 如何將JButton添加到JFrame中，以將其返回到之前打開的JFrame或「Home」框架。

在我的應用程序中，我有4個JFrames，Main One和3個可通過按鈕訪問。

我的全部代碼（幽長，對不起）

package me.jamplifier; 

import java.awt.BorderLayout; 
import java.awt.Color; 
import java.awt.EventQueue; 
import java.awt.FlowLayout; 
import java.awt.Font; 
import java.awt.Image; 
import java.awt.Toolkit; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.awt.image.BufferedImage; 
import java.io.IOException; 
import java.io.InputStream; 
import java.util.ArrayList; 
import java.util.List; 

import javax.imageio.ImageIO; 
import javax.swing.BoxLayout; 
import javax.swing.JButton; 
import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JPanel; 
import javax.swing.JScrollPane; 
import javax.swing.JTextArea; 
import javax.swing.JTextField; 
import javax.swing.ScrollPaneConstants; 
import javax.swing.UIManager; 
import javax.swing.UnsupportedLookAndFeelException; 
import javax.swing.text.DefaultCaret; 

public class Launcher extends JFrame { 



// Main Class Area (Default/Main Windows) 
public Launcher(){ 

    // Main Window 
    JFrame frame = new JFrame("HC Navigator"); 
    frame.setSize(250, 200); 
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    frame.setVisible(true); 
    // Text Labels 
    JLabel label = new JLabel("Beta 1.5  "); 
    JLabel label1 = new JLabel("Welcome to HurricaneCraft"); 
    JPanel panel = new JPanel(); 
    frame.add(panel); 
    panel.add(label); 
    panel.add(label1); 
    panel.setBackground(Color.CYAN); 

    Font font = new Font("Verdana", Font.BOLD, 12); 
    label1.setFont(font); 
    label1.setForeground(Color.RED); 
    label.setFont(font); 
    label.setForeground(Color.GRAY); 

    // Buttons 
    JButton site = new JButton("Site"); 
    site.addActionListener(new ActionListener() 
    { 
     public void actionPerformed(ActionEvent e) 
     { 
      openWebPage("http://www.hurricanecraft.com"); 
     } 
    }); 

    JButton forums = new JButton("Forums"); 
    forums.addActionListener(new ActionListener() 
    { 
     public void actionPerformed(ActionEvent e) 
     { 
      openWebPage("http://www.hurricanecraft.com/forums/"); 
     } 
    }); 
    JButton apps = new JButton("Member Apps"); 
    apps.addActionListener(new ActionListener() 
    { 
     public void actionPerformed(ActionEvent e) 
     { 
      openWebPage("http://hurricanecraft.freeforums.org/member-registration-f29.html"); 
     } 
    }); 
    JButton community = new JButton("Community"); 
    community.addActionListener(new ActionListener() 
    { 
     public void actionPerformed(ActionEvent e) 
     { 
      createFrame2(); 
     } 
    }); 
    JButton admin = new JButton("Admin Area"); 
    admin.addActionListener(new ActionListener() 
    { 
     public void actionPerformed(ActionEvent e) 
     { 
      createFrame(); 
     } 
    }); 
    JButton update = new JButton("Update Log"); 
    update.addActionListener(new ActionListener() 
    { 
     public void actionPerformed(ActionEvent e) 
     { 
      createFrame1(); 
     } 
    }); 
    panel.add(site); 
    panel.add(forums); 
    panel.add(community); 
    panel.add(apps); 
    panel.add(admin); 
    panel.add(update); 




} 

// Web Browser/Link Opening Code 
public static void openWebPage(String url){ 
     try {   
     java.awt.Desktop.getDesktop().browse(java.net.URI.create(url)); 
     } 
     catch (java.io.IOException e) { 
      System.out.println(e.getMessage()); 
     } 
    } 
// Admin Area Panel 
public static void createFrame() 
{ 
    JFrame frame = new JFrame("Admin Area"); 
    frame.setVisible(true); 
    frame.setSize(250, 200); 
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

    JLabel label = new JLabel("Beta 1.5  "); 
    JLabel label1 = new JLabel("Welcome to the Admin Panel"); 
    JPanel panel = new JPanel(); 
    frame.add(panel); 
    panel.add(label); 
    panel.add(label1); 

    JButton host = new JButton("MCServer Host"); 
    host.addActionListener(new ActionListener() 
    { 
     public void actionPerformed(ActionEvent e) 
     { 
      openWebPage("http://panel.fadehost.com/index"); 
     } 
    }); 

    JButton console = new JButton("MCServer Console"); 
    console.addActionListener(new ActionListener() 
    { 
     public void actionPerformed(ActionEvent e) 
    { 
     openWebPage("http://panel.fadehost.com/index.php?r=server/log&id=1983"); 
    } 
}); 
    JButton tfhost = new JButton("TF2Server Host"); 
    host.addActionListener(new ActionListener() 
    { 
     public void actionPerformed(ActionEvent e) 
     { 
      openWebPage("http://tcadmin.darkstarllc.com"); 
     } 
    }); 

    JButton staffforum = new JButton("Staff Forums"); 
    staffforum.addActionListener(new ActionListener() 
    { 
     public void actionPerformed(ActionEvent e) 
    { 
     openWebPage("http://hurricanecraft.freeforums.org/staff-area-f39.html"); 
    } 
}); 

    panel.add(host); 
    panel.add(console); 
    panel.add(tfhost); 
    panel.add(staffforum); 


} 
    // Update Logs Panel 
    public static void createFrame1() 
    { 
     JFrame frame = new JFrame("Update Logs"); 
     frame.setVisible(true); 
     frame.setSize(400, 400); 
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

    JLabel label = new JLabel("       Change Log:          "); 
    JLabel label1 = new JLabel("- Beta 1.1: First Release"); 
    JLabel label2 = new JLabel("- Beta 1.2: Added ADMIN Panel & Change log "); 
    JLabel label3 = new JLabel("- Beta 1.3: Added Staff Forum & Seperated Console/Host"); 
    JLabel label4 = new JLabel("- Beta 1.4: Added Colours & Community Tab + Online Status's"); 
    JLabel label5 = new JLabel("- Beta 1.4: Added Colours & Community Tab + Online Status's"); 
    JLabel label6 = new JLabel("- Beta 1.5: Added New Site Redirects & TF2 Server IP/PANEL"); 
    JPanel panel = new JPanel(); 
    frame.add(panel); 
    panel.add(label); 
    panel.add(label1); 
    panel.add(label2); 
    panel.add(label3); 
    panel.add(label4); 
    panel.add(label5); 
    panel.add(label6); 
} 
// Community Page 
    public static void createFrame2() 
    { 
     JFrame frame = new JFrame("Community Area"); 
     frame.setVisible(true); 
     frame.setSize(400, 300); 
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

     // Labels Frames Panels ECT 
     JLabel label = new JLabel("Hurricane Craft Servers:   "); 
     JLabel minecraft = new JLabel("- Minecraft: IP Mc.hurricanecraft.com"); 
     JLabel online = new JLabel("[ONLINE]"); 
     JLabel tf2 = new JLabel("- Teamspeak: IP tf.hurricanecraft.com:27015"); 
     JLabel online1 = new JLabel("[ONLINE]"); 
     JLabel teamspeak = new JLabel("- Teamfortress: IP ts.hurricanecraft.com:5326"); 
     JLabel online2 = new JLabel("[ONLINE]"); 
     JLabel site = new JLabel("- Site: http://www.hurricanegaming.webs.com"); 
     JLabel online3 = new JLabel("[ONLINE]"); 
     JPanel panel = new JPanel(); 
     // Buttons 
     JButton votepmc = new JButton("Vote On PMC"); 
     votepmc.addActionListener(new ActionListener() 
     { 
      public void actionPerformed(ActionEvent e) 
     { 
      openWebPage("http://www.planetminecraft.com/server/hurricane-craft-247-survival- 
       creative-pvp-games/vote/"); 
     } 
    }); 
     JButton votemc = new JButton("Vote On MCServers"); 
     votemc.addActionListener(new ActionListener() 
     { 
      public void actionPerformed(ActionEvent e) 
     { 
      openWebPage("http://minecraftservers.org/vote/97507"); 
     } 
    }); 
     JButton votetopg = new JButton("Vote On Topg"); 
     votetopg.addActionListener(new ActionListener() 
     { 
      public void actionPerformed(ActionEvent e) 
     { 
      openWebPage("http://topg.org/Minecraft/in-371684"); 
     } 
    }); 


     // Adding buttons/labels 
     frame.add(panel); 
     panel.add(label); 
     panel.add(minecraft); 
     panel.add(online); 
     panel.add(tf2); 
     panel.add(online1); 
     panel.add(teamspeak); 
     panel.add(online2); 
     panel.add(site);; 
     panel.add(online3); 
     panel.add(votepmc); 
     panel.add(votemc); 
     panel.add(votetopg); 
     // Font & Colours 
     Font font = new Font("Verdana", Font.BOLD, 12); 
     label.setFont(font); 
     label.setForeground(Color.BLUE); 
     Font green = new Font("Verdana", Font.BOLD, 12); 
     online.setFont(green); 
     online.setForeground(Color.GREEN); 
     online1.setFont(green); 
     online1.setForeground(Color.GREEN); 
     online2.setFont(green); 
     online2.setForeground(Color.GREEN); 
     online3.setFont(green); 
     online3.setForeground(Color.GREEN); 
    } 
// Main String Args Declaration 
public static void main(String[] args){ 
    new Launcher(); 
    } 


    } 

Answer 1

如何使用一個佈局，CardLayout四JPanel與內容的工作。它有三個很好的功能：它把它的停工郊遊成分爲證：

1. CardLayout.first(Caontainer)：翻轉到第一卡容器。
2. CardLayout.next(panel)：翻轉到指定容器的下一張卡片。如果當前可見的卡片是最後一張卡片，則此方法翻轉至佈局中的第一張卡片。
3. CardLayout.previous(paenl)：翻轉到以前的指定容器的卡片。如果當前可見的卡片是第一張卡片，則此方法翻轉至佈局中的最後一張卡片。

這是給你一個工作示例：

class CardLayoutDemo1 extends JFrame { 

    private JPanel jPanel1; 
    private JButton navHomeButt; 
    private JButton navNextButt; 
    private JButton navPreviousButt; 
    private JPanel panelContainer; 

    Random random = new Random(); 

    public CardLayoutDemo1() { 
     initComponents(); 


     panelContainer.add(createSamplePanel("Home Panel "), ""+0); 
     for(int i=1; i < 10; i++) 
     { 
      panelContainer.add(createSamplePanel("Panel "+i), ""+i); 
     } 
    } 

    private void initComponents() { 

     jPanel1 = new JPanel(); 
     navPreviousButt = new JButton(); 
     navNextButt = new JButton(); 
     navHomeButt = new JButton(); 
     panelContainer = new JPanel(); 

     setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); 

     jPanel1.setBackground(Color.WHITE); 

     navPreviousButt.setText("Previous"); 
     navPreviousButt.setPreferredSize(new Dimension(90, 23)); 
     jPanel1.add(navPreviousButt); 

     navNextButt.setText("next"); 
     navNextButt.setPreferredSize(new Dimension(90, 23)); 
     jPanel1.add(navNextButt); 

     navHomeButt.setText("Back to Home"); 
     jPanel1.add(navHomeButt); 



     panelContainer.setPreferredSize(new Dimension(400, 300)); 
     panelContainer.setLayout(new CardLayout()); 
     // setting the card layout 

     getContentPane().add(jPanel1, java.awt.BorderLayout.PAGE_END); 
     getContentPane().add(panelContainer, BorderLayout.CENTER); 




     navNextButt.addActionListener(new ActionListener() { 
      public void actionPerformed(ActionEvent evt) { 
       CardLayout cardLayout = (CardLayout) panelContainer.getLayout(); 
       cardLayout.next(panelContainer); 
       // using cardLayout next() to go to next panel 
      } 
     }); 
     navHomeButt.addActionListener(new ActionListener() { 
      public void actionPerformed(ActionEvent evt) { 
       CardLayout cardLayout = (CardLayout) panelContainer.getLayout(); 
       cardLayout.first(panelContainer); 
       // suing first to get to the home panel 
      } 
     }); 
     navPreviousButt.addActionListener(new ActionListener() { 
      public void actionPerformed(ActionEvent evt) { 
       CardLayout cardLayout = (CardLayout) panelContainer.getLayout(); 
       cardLayout.previous(panelContainer); 

       // using previous to get to previous(left)panel 
      } 
     }); 

     pack(); 
    }     

    public JPanel createSamplePanel(String panelTitle) 
    { 
     JPanel samplePanel = new JPanel(); 
     samplePanel.add(new JLabel(panelTitle)); 
     samplePanel.setBackground(new Color(random.nextInt(255), random.nextInt(255), random.nextInt(255))); 
     return samplePanel; 

    }           


    public static void main(String args[]) { 

     java.awt.EventQueue.invokeLater(new Runnable() { 
      public void run() { 
       new CardLayoutDemo1().setVisible(true); 
      } 
     }); 
    } 

}