我的程序将允许用户先登录，如果他已登录，
他将首先单击labelone，然后单击labeltwo。
该程序将打印（“检测到最后两张卡。开始新游戏。”），并允许用户再次单击两个标签。
我面临的问题是在面板重新粉刷之后。我无法点击标签
不再。
我知道我的代码提供的时间太长，但是我已经尝试过从我的实际程序中减少我的代码。
我认为主要重点是控制器类中的这段代码。
labelPanel.removeAll();
Dealer dealer = new Dealer();
labelPanel.add(new LabelPanel(dealer));
labelPanel.revalidate();
labelPanel.repaint();
new Controller(labelPanel,dealer);
我不确定我的鼠标监听器发生了什么。请帮忙
这是类。如果你们听不懂，请随意运行它。
以用户名登录->约翰密码-> abc
首先单击标签一，然后单击标签二。控制台将显示
“检测到最后两张牌，开始新游戏。”
之后，尝试再次单击标签（右边应该可以单击，但不能单击）
LoginPanel.java
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.border.EtchedBorder;
import javax.swing.border.TitledBorder;
@SuppressWarnings("serial")
public class LoginPanel extends JPanel {
private JPanel northPanel = new JPanel(new BorderLayout());
private JPanel southPanel = new JPanel(new BorderLayout());
private JPanel subSouthPanel = new JPanel(new GridBagLayout());
private JPanel subSouthPanelTwo = new JPanel(new FlowLayout());
private GridBagConstraints gbc2 = new GridBagConstraints();
private JTextField playerUsernameTF = new JTextField(15);
private JPasswordField playerPasswordTF = new JPasswordField(15);
private JButton playerLoginBtn = new JButton("Login");
public LoginPanel() {
setLayout(new BorderLayout());
gbc2.gridx = 0;
gbc2.gridy = 0;
subSouthPanel.add(new JLabel("Username"),gbc2);
gbc2.gridx = 1;
gbc2.gridy = 0;
subSouthPanel.add(playerUsernameTF,gbc2);
gbc2.gridx = 0;
gbc2.gridy = 1;
subSouthPanel.add(new JLabel("Password"),gbc2);
gbc2.gridx = 1;
gbc2.gridy = 1;
subSouthPanel.add(playerPasswordTF,gbc2);
southPanel.add(subSouthPanel,BorderLayout.CENTER);
subSouthPanelTwo.add(playerLoginBtn);
southPanel.add(subSouthPanelTwo,BorderLayout.SOUTH);
add(northPanel,BorderLayout.NORTH);
add(southPanel,BorderLayout.SOUTH);
}
public JTextField getPlayerUsernameTF() {
return playerUsernameTF;
}
public JPasswordField getPlayerPasswordTF() {
return playerPasswordTF;
}
void addListenerForPlayerLoginBtn(ActionListener actionListener) {
playerLoginBtn.addActionListener(actionListener);
}
}
LabelPanel.java
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.MouseListener;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;
@SuppressWarnings("serial")
public class LabelPanel extends JPanel {
private JPanel panel = new JPanel(new FlowLayout());
private JLabel labelOne;
private JLabel labelTwo;
public LabelPanel(Dealer dealer) {
setLayout(new BorderLayout());
labelOne = new JLabel(new ImageIcon(dealer.hideCard()));
labelTwo = new JLabel(new ImageIcon(dealer.hideCard()));
panel.add(labelOne);
panel.add(labelTwo);
add(panel);
}
public JLabel getJLabelOne() {
return labelOne;
}
public JLabel getJLabelTwo() {
return labelTwo;
}
void listenerForJLabelOne(MouseListener listenForMouseClick) {
labelOne.addMouseListener(listenForMouseClick);
}
void listenerForJLabelTwo(MouseListener listenForMouseClick) {
labelTwo.addMouseListener(listenForMouseClick);
}
}
Dealer.java
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
public class Dealer {
public Dealer() {
}
public Image hideCard() {
BufferedImage img = null;
try {
img = ImageIO.read(new File("resources/images/blank.png"));
} catch (Exception e) {
}
return img;
}
public Image displayFirsCard() {
BufferedImage img = null;
try {
img = ImageIO.read(new File("resources/images/ClubsAce.png"));
} catch (Exception e) {
}
return img;
}
public Image displaySecondCard() {
BufferedImage img = null;
try {
img = ImageIO.read(new File("resources/images/ClubsAce.png"));
} catch (Exception e) {
}
return img;
}
}
Controller.java
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.Timer;
public class Controller {
private LabelPanel labelPanel;
private Dealer dealer;
private int countdown = 1;
private Timer timer = new Timer(1000,null);
private MouseHandler mouseHandler = new MouseHandler();
private int clicked = 0;
public Controller(LabelPanel labelPanel,Dealer dealer) {
clicked = 0;
this.labelPanel = labelPanel;
this.dealer = dealer;
this.labelPanel.listenerForJLabelOne(mouseHandler);
this.labelPanel.listenerForJLabelTwo(mouseHandler);
this.labelPanel.getJLabelOne().setText("Ace");
this.labelPanel.getJLabelTwo().setText("Ace");
}
private class MouseHandler extends MouseAdapter {
public void mousePressed(MouseEvent e) {
JLabel label = (JLabel) e.getSource();
clicked++;
if(clicked == 1) {
labelPanel.getJLabelOne().setIcon((new ImageIcon(dealer.displayFirsCard())));
}
if(clicked == 2) {
labelPanel.getJLabelTwo().setIcon((new ImageIcon(dealer.displaySecondCard())));;
if(label.getText().equals(label.getText())) {
System.out.println("last 2 cards detected, starting new game..");
timer = new Timer(1000,new newGameTimer());
timer.start();
}
}
}
}
private class newGameTimer implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
if(countdown == 0) {
timer.stop();
clicked = 0;
labelPanel.removeAll();
Dealer dealer = new Dealer();
labelPanel.add(new LabelPanel(dealer));
labelPanel.revalidate();
labelPanel.repaint();
new Controller(labelPanel,dealer);
}
else {
countdown--;
}
}
}
}
MainFrame.java
import java.awt.CardLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class MainFrame {
private CardLayout cardLayout = new CardLayout();
private Dealer dealer = new Dealer();
private JPanel cardLayoutPanel = new JPanel();
private LoginPanel loginPanel = new LoginPanel();
private JFrame frame = new JFrame("Mouse CLick Test");
private JPanel dialogPanel = new JPanel();
private LabelPanel labelPanel = new LabelPanel(dealer);
public MainFrame() {
cardLayoutPanel.setLayout(cardLayout);
cardLayoutPanel.add(loginPanel,"1");
cardLayout.show(cardLayoutPanel,"1");
cardLayoutPanel.add(labelPanel,"2");
frame.add(cardLayoutPanel);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.pack();
frame.setSize(1024,768);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
frame.setResizable(false);
loginPanel.addListenerForPlayerLoginBtn(new PlayerLoginBtnActionPerformed());
}
public class PlayerLoginBtnActionPerformed implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
String playerUsername = loginPanel.getPlayerUsernameTF().getText();
String playerPassword = new String(loginPanel.getPlayerPasswordTF().getPassword());
if(playerUsername.equals("john") && playerPassword.equals("abc")) {
JOptionPane.showMessageDialog(dialogPanel,
"Login Successfully!"
,"Player Login",JOptionPane.PLAIN_MESSAGE);
cardLayout.show(cardLayoutPanel,"2");
new Controller(labelPanel,dealer);
}
else {
JOptionPane.showMessageDialog(dialogPanel,
"Wrong Password or Username!"
,"Error",JOptionPane.ERROR_MESSAGE);
}
}
}
public static void main(String[]args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new MainFrame();
}
});
}
}
最佳答案
问题是，您要将LabelPanel添加到LabelPanel
labelPanel.add(new LabelPanel(dealer));
但是您要将外部面板传递给控制器
new Controller(labelPanel, dealer);
外面板实际上不再包含任何标签，而是仅包含新的
LabelPanel ...更好的解决方案是为
LabelPanel提供某种“重置”选项，而不是...