我只是在窗口构建器上创建一个小应用程序，需要一些帮助。我已经单独制作了两个帧，我不知道如何指定按钮的动作，这样当我点击第一帧中的“下一个”按钮时，我希望它移动到第二帧。
以下是每个文件的源代码。
first.java
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import javax.swing.AbstractAction;
import java.awt.event.ActionEvent;
import javax.swing.Action;
import javax.swing.JTextArea;
import java.awt.Font;
import java.awt.event.ActionListener;
public class first extends JFrame {
private JPanel contentPane;
private final Action action = new SwingAction();
private final Action action_1 = new SwingAction();
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
first frame = new first();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public first() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JButton btnNext = new JButton("Next");
btnNext.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
}
});
btnNext.setAction(action_1);
btnNext.setBounds(257, 228, 55, 23);
contentPane.add(btnNext);
JButton btnExit = new JButton("Exit");
btnExit.setBounds(344, 228, 51, 23);
contentPane.add(btnExit);
JRadioButton rdbtnAdd = new JRadioButton("Add");
rdbtnAdd.setBounds(27, 80, 109, 23);
contentPane.add(rdbtnAdd);
JRadioButton rdbtnDelete = new JRadioButton("Delete");
rdbtnDelete.setBounds(27, 130, 109, 23);
contentPane.add(rdbtnDelete);
JRadioButton rdbtnEdit = new JRadioButton("Edit");
rdbtnEdit.setBounds(27, 180, 109, 23);
contentPane.add(rdbtnEdit);
JLabel lblSelectAnOption = new JLabel("Select an Option");
lblSelectAnOption.setFont(new Font("Tahoma", Font.PLAIN, 14));
lblSelectAnOption.setBounds(27, 36, 121, 23);
contentPane.add(lblSelectAnOption);
}
private class SwingAction extends AbstractAction {
public SwingAction() {
putValue(NAME, "Next");
putValue(SHORT_DESCRIPTION, "Some short description");
}
public void actionPerformed(ActionEvent e) {
new second_add();
}
}
}
second.java
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JTextField;
import javax.swing.JComboBox;
import javax.swing.AbstractAction;
import java.awt.event.ActionEvent;
import javax.swing.Action;
import java.awt.event.ActionListener;
public class second_add extends JFrame {
private JPanel contentPane;
private JTextField txtTypeYourQuestion;
private JTextField txtQuestionWeight;
private JTextField txtEnter;
private JTextField txtEnter_1;
private JTextField txtValue;
private JTextField txtValue_1;
private final Action action = new SwingAction();
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
second_add frame = new second_add();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public second_add() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
txtTypeYourQuestion = new JTextField();
txtTypeYourQuestion.setBounds(22, 11, 177, 20);
txtTypeYourQuestion.setText("Type your Question Here");
contentPane.add(txtTypeYourQuestion);
txtTypeYourQuestion.setColumns(10);
txtQuestionWeight = new JTextField();
txtQuestionWeight.setBounds(209, 11, 86, 20);
txtQuestionWeight.setText("Question weight");
contentPane.add(txtQuestionWeight);
txtQuestionWeight.setColumns(10);
txtEnter = new JTextField();
txtEnter.setBounds(22, 55, 86, 20);
txtEnter.setText("Enter . . .");
contentPane.add(txtEnter);
txtEnter.setColumns(10);
txtEnter_1 = new JTextField();
txtEnter_1.setText("Enter . . . ");
txtEnter_1.setBounds(22, 104, 86, 20);
contentPane.add(txtEnter_1);
txtEnter_1.setColumns(10);
txtValue = new JTextField();
txtValue.setText("Value . .");
txtValue.setBounds(118, 55, 51, 20);
contentPane.add(txtValue);
txtValue.setColumns(10);
txtValue_1 = new JTextField();
txtValue_1.setText("Value . .");
txtValue_1.setBounds(118, 104, 51, 20);
contentPane.add(txtValue_1);
txtValue_1.setColumns(10);
JButton btnFinish = new JButton("Finish");
btnFinish.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
btnFinish.setAction(action);
btnFinish.setBounds(335, 228, 89, 23);
contentPane.add(btnFinish);
JButton btnAddChoice = new JButton("Add choice");
btnAddChoice.setBounds(236, 228, 89, 23);
contentPane.add(btnAddChoice);
JButton btnAddQuestion = new JButton("Add question");
btnAddQuestion.setBounds(136, 228, 89, 23);
contentPane.add(btnAddQuestion);
}
private class SwingAction extends AbstractAction {
public SwingAction() {
putValue(NAME, "");
putValue(SHORT_DESCRIPTION, "Some short description");
}
public void actionPerformed(ActionEvent e) {
}
}
}
答案 0 :(得分：2)
答案 1 :(得分：1)
快速而肮脏的解决方案是在按钮点击操作中将第一帧的可见性设置为false，将第二帧的可见性设置为true。 （见Sajal Dutta的回答）
但即使超过2帧也要保持一致的行为，让每个帧存储在主类的HashTable中（持有main方法的类和不扩展JFrame） ID是帧的顺序（第一帧D 1，第二帧：ID 2等）。
然后创建一个静态方法
public void switchFrame(JFrame originatingFrame, int NextFrame){
originatingFrame.this.setVisible(false);
((JFrame) myHashTable.get(NextFrame)).setVisible(true);
}
在主类中，可以使用
从每个帧调用mainClass.switchFrame(this, IdOfFrameYouWantToGoTo);
这样你也可以实现“Back” - 和“Skip”-Buttons你想要创建类似向导的东西。
注意：我没有测试此代码。这应该被视为如何执行此操作的一般概述。
答案 2 :(得分：0)
像这样修改 -
JButton btnNext = new JButton("Next");
btnNext.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
second_add second = new second_add();
setVisible(false); // Hide current frame
second.setVisible(true);
}
});
答案 3 :(得分：0)
您可以通过创建对象并使用setVisible方法显示它来导航到框架。如果您想在按钮上单击，请将其写入事件处理程序。
JFrame o = new JFrame();
o.setVisible(true);
dispose(); // This will close the current frame
答案 4 :(得分：0)
下面的代码将显示以菜单格式从一个页面导航到另一个页面。
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.CardLayout;
import java.awt.Container;
import java.awt.GraphicsEnvironment;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.Panel;
import java.awt.TextArea;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;
import java.io.PrintStream;
import java.util.ArrayList;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class AddressBookDemo implements ActionListener, Runnable {
ArrayList personsList;
PersonDAO pDAO;
Panel panel;
JFrame appFrame;
JLabel jlbName, jblPassword, jlbAddress;
JPasswordField jPassword;
JTextField jtfName, jtfAddress;
JButton jbbSave, jbnClear, jbnExit, btnNext, button;
String name, address, password;
final int CARDS = 4;
CardLayout cl = new CardLayout();
JPanel cardPanel = new JPanel(cl);
CardLayout c2 = new CardLayout();
JPanel cardPanel2 = new JPanel(c2);
int currentlyShowing = 0;
Thread errorThrower;
// int phone;
// int recordNumber; // used to naviagate using >> and buttons
Container cPane;
Container cPane2;
private JFrame frame;
private TextArea textArea;
private Thread reader;
private Thread reader2;
private boolean quit;
private final PipedInputStream pin = new PipedInputStream();
private final PipedInputStream pin2 = new PipedInputStream();
public static void main(String args[]) {
new AddressBookDemo();
}
public AddressBookDemo() {
name = "";
password = "";
address = "";
// phone = -1; //Stores 0 to indicate no Phone Number
// recordNumber = -1;
createGUI();
personsList = new ArrayList();
// creating PersonDAO object
pDAO = new PersonDAO();
}
public void createGUI() {
/* Create a frame, get its contentpane and set layout */
appFrame = new JFrame("ManualDeploy ");
cPane = appFrame.getContentPane();
cPane.setLayout(new GridBagLayout());
// frame=new JFrame("Java Console");
textArea=new TextArea();
textArea.setEditable(false);
Button button=new Button("clear");
panel=new Panel();
panel.setLayout(new GridBagLayout());
GridBagConstraints gridBagConstraintsx01 = new GridBagConstraints();
gridBagConstraintsx01.gridx = 0;
gridBagConstraintsx01.gridy = 0;
gridBagConstraintsx01.insets = new Insets(5, 5, 5, 5);
panel.add(textArea,gridBagConstraintsx01);
GridBagConstraints gridBagConstraintsx03 = new GridBagConstraints();
gridBagConstraintsx03.gridx = 0;
gridBagConstraintsx03.insets = new Insets(5, 5, 5, 5);
gridBagConstraintsx03.gridy = 1;
panel.add(button,gridBagConstraintsx03);
// frame.add(panel);
// frame.setVisible(true);
// cPane2 = frame.getContentPane();
// cPane2.setLayout(new GridBagLayout());
button.addActionListener(this);
try
{
PipedOutputStream pout=new PipedOutputStream(this.pin);
System.setOut(new PrintStream(pout,true));
}
catch (java.io.IOException io)
{
textArea.append("Couldn't redirect STDOUT to this console\n"+io.getMessage());
}
catch (SecurityException se)
{
textArea.append("Couldn't redirect STDOUT to this console\n"+se.getMessage());
}
try
{
PipedOutputStream pout2=new PipedOutputStream(this.pin2);
System.setErr(new PrintStream(pout2,true));
}
catch (java.io.IOException io)
{
textArea.append("Couldn't redirect STDERR to this console\n"+io.getMessage());
}
catch (SecurityException se)
{
textArea.append("Couldn't redirect STDERR to this console\n"+se.getMessage());
}
quit=false; // signals the Threads that they should exit
// Starting two seperate threads to read from the PipedInputStreams
//
reader=new Thread(this);
reader.setDaemon(true);
reader.start();
//
reader2=new Thread(this);
reader2.setDaemon(true);
reader2.start();
// testing part
// you may omit this part for your application
//
System.out.println("Hello World 2");
System.out.println("All fonts available to Graphic2D:\n");
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
String[] fontNames=ge.getAvailableFontFamilyNames();
for(int n=0;n<fontNames.length;n++) System.out.println(fontNames[n]);
// Testing part: simple an error thrown anywhere in this JVM will be printed on the Console
// We do it with a seperate Thread becasue we don't wan't to break a Thread used by the Console.
System.out.println("\nLets throw an error on this console");
errorThrower=new Thread(this);
errorThrower.setDaemon(true);
errorThrower.start();
arrangeComponents();
// arrangeComponents2();
final int CARDS = 2;
final CardLayout cl = new CardLayout();
final JPanel cardPanel = new JPanel(cl);
JMenu menu = new JMenu("M");
for (int x = 0; x < CARDS; x++) {
final int SELECTION = x;
JPanel jp = new JPanel();
if (x == 0) {
jp.add(cPane);
} else if (x == 1) {
jp.add(panel);
} else if (x == 2)
jp.add(new JButton("Panel 2"));
else
jp.add(new JComboBox(new String[] { "Panel 3" }));
cardPanel.add("" + SELECTION, jp);
JMenuItem menuItem = new JMenuItem("Show Panel " + x);
menuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
currentlyShowing = SELECTION;
cl.show(cardPanel, "" + SELECTION);
}
});
menu.add(menuItem);
}
JMenuBar menuBar = new JMenuBar();
menuBar.add(menu);
btnNext = new JButton("Next >>");
JButton btnPrev = new JButton("<< Previous");
JPanel p = new JPanel(new GridLayout(1, 2));
p.add(btnPrev);
p.add(btnNext);
btnNext.setVisible(false);
JFrame f = new JFrame();
f.getContentPane().add(cardPanel);
f.getContentPane().add(p, BorderLayout.SOUTH);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(500, 500);
f.setLocationRelativeTo(null);
f.setJMenuBar(menuBar);
f.setVisible(true);
btnNext.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
if (currentlyShowing < CARDS - 1) {
cl.next(cardPanel);
currentlyShowing++;
}
}
});
btnPrev.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
if (currentlyShowing > 0) {
cl.previous(cardPanel);
currentlyShowing--;
}
}
});
}
public void arrangeComponents() {
jlbName = new JLabel("Username");
jblPassword = new JLabel("Password");
jlbAddress = new JLabel("Sftpserver");
jtfName = new JTextField(20);
jPassword = new JPasswordField(20);
jtfAddress = new JTextField(20);
jbbSave = new JButton("move sftp");
jbnClear = new JButton("Clear");
jbnExit = new JButton("Exit");
/* add all initialized components to the container */
GridBagConstraints gridBagConstraintsx01 = new GridBagConstraints();
gridBagConstraintsx01.gridx = 0;
gridBagConstraintsx01.gridy = 0;
gridBagConstraintsx01.insets = new Insets(5, 5, 5, 5);
cPane.add(jlbName, gridBagConstraintsx01);
GridBagConstraints gridBagConstraintsx02 = new GridBagConstraints();
gridBagConstraintsx02.gridx = 1;
gridBagConstraintsx02.insets = new Insets(5, 5, 5, 5);
gridBagConstraintsx02.gridy = 0;
gridBagConstraintsx02.gridwidth = 2;
gridBagConstraintsx02.fill = GridBagConstraints.BOTH;
cPane.add(jtfName, gridBagConstraintsx02);
GridBagConstraints gridBagConstraintsx03 = new GridBagConstraints();
gridBagConstraintsx03.gridx = 0;
gridBagConstraintsx03.insets = new Insets(5, 5, 5, 5);
gridBagConstraintsx03.gridy = 1;
cPane.add(jblPassword, gridBagConstraintsx03);
GridBagConstraints gridBagConstraintsx04 = new GridBagConstraints();
gridBagConstraintsx04.gridx = 1;
gridBagConstraintsx04.insets = new Insets(5, 5, 5, 5);
gridBagConstraintsx04.gridy = 1;
gridBagConstraintsx04.gridwidth = 2;
gridBagConstraintsx04.fill = GridBagConstraints.BOTH;
cPane.add(jPassword, gridBagConstraintsx04);
GridBagConstraints gridBagConstraintsx05 = new GridBagConstraints();
gridBagConstraintsx05.gridx = 0;
gridBagConstraintsx05.insets = new Insets(5, 5, 5, 5);
gridBagConstraintsx05.gridy = 2;
cPane.add(jlbAddress, gridBagConstraintsx05);
GridBagConstraints gridBagConstraintsx06 = new GridBagConstraints();
gridBagConstraintsx06.gridx = 1;
gridBagConstraintsx06.gridy = 2;
gridBagConstraintsx06.insets = new Insets(5, 5, 5, 5);
gridBagConstraintsx06.gridwidth = 2;
gridBagConstraintsx06.fill = GridBagConstraints.BOTH;
cPane.add(jtfAddress, gridBagConstraintsx06);
GridBagConstraints gridBagConstraintsx09 = new GridBagConstraints();
gridBagConstraintsx09.gridx = 0;
gridBagConstraintsx09.gridy = 4;
gridBagConstraintsx09.insets = new Insets(5, 5, 5, 5);
cPane.add(jbbSave, gridBagConstraintsx09);
GridBagConstraints gridBagConstraintsx10 = new GridBagConstraints();
gridBagConstraintsx10.gridx = 1;
gridBagConstraintsx10.gridy = 4;
gridBagConstraintsx10.insets = new Insets(5, 5, 5, 5);
cPane.add(jbnClear, gridBagConstraintsx10);
GridBagConstraints gridBagConstraintsx11 = new GridBagConstraints();
gridBagConstraintsx11.gridx = 2;
gridBagConstraintsx11.gridy = 4;
gridBagConstraintsx11.insets = new Insets(5, 5, 5, 5);
cPane.add(jbnExit, gridBagConstraintsx11);
jbbSave.addActionListener(this);
// jbnDelete.addActionListener(this);
jbnClear.addActionListener(this);
jbnExit.addActionListener(this);
}
public void actionPerformed(ActionEvent e) {
System.out.println("inside button123");
if (e.getSource() == jbbSave) {
savePerson();
} else if (e.getSource() == jbnClear) {
clear();
} else if (e.getSource() == jbnExit) {
System.exit(0);
}
else if (e.getSource() == button)
{
System.out.println("inside button");
textArea.setText(" ");
}
}
// Save the Person into the Address Book
public void savePerson() {
name = jtfName.getText();
password = jPassword.getText();
address = jtfAddress.getText();
if (name.equals("")) {
JOptionPane.showMessageDialog(null, "Please enter password",
"ERROR", JOptionPane.ERROR_MESSAGE);
} else if (password != null && password.isEmpty()) {
JOptionPane.showMessageDialog(null, "Please enter password",
"ERROR", JOptionPane.ERROR_MESSAGE);
}
else {
btnNext.setVisible(true);
JOptionPane.showMessageDialog(null, "Person Saved");
}
}
public void clear() {
jtfName.setText("");
jPassword.setText("");
jtfAddress.setText("");
personsList.clear();
}
public synchronized void run()
{
try
{
while (Thread.currentThread()==reader)
{
try { this.wait(100);}catch(InterruptedException ie) {}
if (pin.available()!=0)
{
String input=this.readLine(pin);
textArea.append(input);
}
if (quit) return;
}
while (Thread.currentThread()==reader2)
{
try { this.wait(100);}catch(InterruptedException ie) {}
if (pin2.available()!=0)
{
String input=this.readLine(pin2);
textArea.append(input);
}
if (quit) return;
}
} catch (Exception e)
{
textArea.append("\nConsole reports an Internal error.");
textArea.append("The error is: "+e);
}
// just for testing (Throw a Nullpointer after 1 second)
// if (Thread.currentThread()==errorThrower)
// {
// try { this.wait(1000); }catch(InterruptedException ie){}
// throw new NullPointerException("Application test: throwing an NullPointerException It should arrive at the console");
// }
}
public synchronized String readLine(PipedInputStream in) throws IOException
{
String input="";
do
{
int available=in.available();
if (available==0) break;
byte b[]=new byte[available];
in.read(b);
input=input+new String(b,0,b.length);
}while( !input.endsWith("\n") && !input.endsWith("\r\n") && !quit);
return input;
}
public synchronized void windowClosed(WindowEvent evt)
{
quit=true;
this.notifyAll(); // stop all threads
try { reader.join(1000);pin.close(); } catch (Exception e){}
try { reader2.join(1000);pin2.close(); } catch (Exception e){}
System.exit(0);
}
}