更新 JTextArea 的问题
Problems with updating JTextArea
我正在编写一个带有 JTextArea 的简单纸牌游戏 GUI 来显示正在发生的事情以及谁放置了哪张纸牌等等。布局完成后，我添加了一个方法，将文本逐字符追加到JTextArea中，这样书写效果很好。我有一个 class 用于创建 window 和 GUI，还有一个 class 用于游戏和 TextArea 的输出。
但这仅适用于初始化游戏。之后，玩家必须通过按下按钮来选择一张牌，当他这样做时，我会在游戏对象中调用一个方法，以便它继续进行。这里的问题是它一直等到按下按钮的 actionEvent 被执行，然后用游戏处理的所有文本更新 TextArea，而不是逐个字符地更新它。仅在每个字符后添加 textArea.update(... 并不能解决问题，因为该区域开始闪烁。
这是我的 window class:
import java.awt.BorderLayout;
import java.awt.Color;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;
import javax.swing.border.LineBorder;
import javax.swing.JTable;
import javax.swing.border.MatteBorder;
import java.awt.Cursor;
import java.awt.Font;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.awt.event.ActionEvent;
import javax.swing.JTextField;
import javax.swing.JPanel;
import java.awt.ComponentOrientation;
public class window {
private JFrame frmStinkt;
private JLabel label;
private JTextArea textArea;
private JTable table;
private static ArrayList<JButton> buttons = new ArrayList<JButton>();
private JTextField textField;
private static WindowGame newGame;
private static int test = 0;
/**
* Launch the application.
*/
public static void main(String[] args)
{
window window = new window(104, 4);
window.frmStinkt.setVisible(true);
newGame = new WindowGame(104, 4, window.textArea, window.table);
newGame.initGame();
setButtonNames(newGame.players.get(0).cards);
window.enableButtons();
}
/**
* Create the application.
*/
public window(int numberOfCards, int numberOfRows)
{
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
Font defaultFont = new Font("Gill Sans MT",Font.BOLD,14);
frmStinkt = new JFrame();
frmStinkt.setTitle("6 STINKT!");
frmStinkt.getContentPane().setForeground(Color.GREEN);
frmStinkt.getContentPane().setFocusTraversalPolicyProvider(true);
frmStinkt.getContentPane().setBackground(Color.BLACK);
frmStinkt.setBounds(400, 200, 600, 450);
frmStinkt.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frmStinkt.getContentPane().setLayout(null);
JScrollPane scrollPane = new JScrollPane();
scrollPane.setBorder(null);
scrollPane.setBounds(83, 18, 420, 130);
frmStinkt.getContentPane().add(scrollPane);
textArea = new JTextArea();
textArea.setBorder(new LineBorder(new Color(0, 255, 0), 2, true));
textArea.setEditable(false);
scrollPane.setViewportView(textArea);
textArea.setWrapStyleWord(true);
textArea.setForeground(Color.GREEN);
textArea.setBackground(Color.BLACK);
textArea.setLineWrap(true);
textArea.setFont(new Font("Gill Sans MT", Font.BOLD, 13));
label = new JLabel("CARDS");
label.setEnabled(false);
label.setHorizontalAlignment(SwingConstants.CENTER);
label.setForeground(Color.GREEN);
label.setBackground(Color.DARK_GRAY);
label.setFont(defaultFont);
label.setBounds(254, 264, 78, 23);
frmStinkt.getContentPane().add(label);
table = new JTable();
table.setShowVerticalLines(false);
table.setGridColor(new Color(0, 255, 0));
table.setForeground(Color.GREEN);
table.setBorder(new MatteBorder(1, 1, 1, 1, (Color) new Color(0, 255, 0)));
table.setBackground(Color.BLACK);
table.setBounds(165, 160, 255, 64);
table.setFont(new Font("Gill Sans MT", Font.BOLD, 14));
frmStinkt.getContentPane().add(table);
textField = new JTextField();
textField.setEditable(false);
textField.setForeground(new Color(0, 255, 0));
textField.setBackground(Color.DARK_GRAY);
textField.setFont(new Font("Gill Sans MT", Font.BOLD, 14));
textField.setBounds(277, 235, 32, 25);
frmStinkt.getContentPane().add(textField, BorderLayout.CENTER);
textField.setHorizontalAlignment(JTextField.CENTER);
textField.setColumns(10);
JPanel panel = new JPanel();
panel.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
panel.setBackground(Color.BLACK);
panel.setBounds(10, 284, 564, 66);
frmStinkt.getContentPane().add(panel);
JButton button0 = new JButton("---");
panel.add(button0);
button0.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button0.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
button0.setVisible(false);
test = buttons.indexOf(button0);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(0)));
disableButtons();
newGame.HumanTurn(test);
buttons.remove(0);
}
});
button0.setForeground(new Color(0, 255, 0));
button0.setBackground(Color.decode("#000000"));
button0.setFont(defaultFont);
button0.setOpaque(true);
button0.setRequestFocusEnabled(false);
button0.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button0);
JButton button1 = new JButton("---");
panel.add(button1);
button1.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(1);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(1)));
disableButtons();
panel.remove(button0);
}
});
button1.setForeground(new Color(0, 255, 0));
button1.setBackground(Color.decode("#000000"));
button1.setFont(defaultFont);
button1.setOpaque(true);
button1.setRequestFocusEnabled(false);
button1.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button1);
JButton button2 = new JButton("---");
panel.add(button2);
button2.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(2);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(2)));
disableButtons();
}
});
button2.setForeground(new Color(0, 255, 0));
button2.setBackground(Color.decode("#000000"));
button2.setFont(defaultFont);
button2.setOpaque(true);
button2.setRequestFocusEnabled(false);
button2.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button2);
JButton button3 = new JButton("---");
panel.add(button3);
button3.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(3);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(3)));
disableButtons();
}
});
button3.setRequestFocusEnabled(false);
button3.setForeground(new Color(0, 255, 0));
button3.setBackground(Color.decode("#000000"));
button3.setFont(defaultFont);
button3.setOpaque(true);
button3.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button3);
JButton button4 = new JButton("---");
panel.add(button4);
button4.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button4.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(4);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(4)));
disableButtons();
}
});
button4.setRequestFocusEnabled(false);
button4.setForeground(new Color(0, 255, 0));
button4.setBackground(Color.decode("#000000"));
button4.setFont(defaultFont);
button4.setOpaque(true);
button4.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button4);
JButton button5 = new JButton("---");
panel.add(button5);
button5.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button5.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(5);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(5)));
disableButtons();
}
});
button5.setRequestFocusEnabled(false);
button5.setForeground(new Color(0, 255, 0));
button5.setBackground(Color.decode("#000000"));
button5.setFont(defaultFont);
button5.setOpaque(true);
button5.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button5);
JButton button6 = new JButton("---");
panel.add(button6);
button6.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button6.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(6);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(6)));
disableButtons();
}
});
button6.setRequestFocusEnabled(false);
button6.setForeground(new Color(0, 255, 0));
button6.setBackground(Color.decode("#000000"));
button6.setFont(defaultFont);
button6.setOpaque(true);
button6.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button6);
JButton button7 = new JButton("---");
panel.add(button7);
button7.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button7.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(7);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(7)));
disableButtons();
}
});
button7.setRequestFocusEnabled(false);
button7.setForeground(new Color(0, 255, 0));
button7.setBackground(Color.decode("#000000"));
button7.setFont(defaultFont);
button7.setOpaque(true);
button7.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button7);
JButton button8 = new JButton("---");
panel.add(button8);
button8.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button8.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(8);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(8)));
disableButtons();
}
});
button8.setRequestFocusEnabled(false);
button8.setForeground(new Color(0, 255, 0));
button8.setBackground(Color.decode("#000000"));
button8.setFont(defaultFont);
button8.setOpaque(true);
button8.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button8);
JButton button9 = new JButton("---");
panel.add(button9);
button9.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button9.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(9);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(9)));
disableButtons();
}
});
button9.setRequestFocusEnabled(false);
button9.setForeground(new Color(0, 255, 0));
button9.setBackground(Color.decode("#000000"));
button9.setFont(defaultFont);
button9.setOpaque(true);
button9.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button9);
JButton random_1 = new JButton("RANDOM");
random_1.setBounds(238, 361, 105, 25);
frmStinkt.getContentPane().add(random_1);
random_1.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
random_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
int random = (int)(Math.random() * newGame.players.get(0).cards.size());
newGame.HumanTurn(random);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(random)));
disableButtons();
}
});
random_1.setRequestFocusEnabled(false);
random_1.setForeground(new Color(0, 255, 0));
random_1.setBackground(Color.decode("#000000"));
random_1.setFont(defaultFont);
random_1.setOpaque(true);
random_1.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(random_1);
disableButtons();
}
public void enableButtons()
{
for(int i=0; i<buttons.size(); i++)
buttons.get(i).setEnabled(true);
label.setEnabled(true);
}
public void disableButtons()
{
for(int i=0; i<buttons.size(); i++)
buttons.get(i).setEnabled(false);
label.setEnabled(false);
}
public static void setButtonNames(ArrayList<Integer> cards)
{
for(int i=0; i<buttons.size() - 1; i++)
buttons.get(i).setText(cards.get(i).toString());
}
}
我了解到我可能可以通过使用 swingWorker 来解决这个问题。我找到了一个有用的进度条演示，但我不知道如何用我的方法使用它。我将不胜感激任何帮助。提前致谢！
这是它的样子：
这里是按钮按下和打印调用的方法：
public void HumanTurn(int cardIndex)
{
print("Du hast " + players.get(0).cards.get(cardIndex) + " gewählt.", textSpeedNormal);
next += 1;
BotTurn();
}
public void print(String text, int speed)
{
for(int i=0; i<text.length(); i++)
{
textArea.append(text.substring(i, (i+1)));
try {
Thread.sleep(speed);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
textArea.append("\n");
textArea.setCaretPosition(textArea.getDocument().getLength());
}
Thread.sleep(speed);
不要使用 Thread.sleep(...)。
这会使 Event Dispatch Thread (EDT) 进入休眠状态，因此 GUI 无法响应事件或重新绘制自身。有关详细信息，请阅读 Concurrency 上的 Swing 教程。
而是使用 Swing Timer 来安排动画。 Swing Timer 取代了循环代码。每次计时器触发时，您都会执行一些操作，在本例中，向文本区域添加一个字符。
一种方法可能是将文本添加到 StringBuilder。然后，每次 Timer 触发时，您都会从 StringBuilder 中删除第一个字符并将其附加到文本区域。当 StringBuilder 为空时，您将停止计时器。
我正在编写一个带有 JTextArea 的简单纸牌游戏 GUI 来显示正在发生的事情以及谁放置了哪张纸牌等等。布局完成后，我添加了一个方法，将文本逐字符追加到JTextArea中，这样书写效果很好。我有一个 class 用于创建 window 和 GUI，还有一个 class 用于游戏和 TextArea 的输出。
但这仅适用于初始化游戏。之后，玩家必须通过按下按钮来选择一张牌，当他这样做时，我会在游戏对象中调用一个方法，以便它继续进行。这里的问题是它一直等到按下按钮的 actionEvent 被执行，然后用游戏处理的所有文本更新 TextArea，而不是逐个字符地更新它。仅在每个字符后添加 textArea.update(... 并不能解决问题，因为该区域开始闪烁。
这是我的 window class:
import java.awt.BorderLayout;
import java.awt.Color;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;
import javax.swing.border.LineBorder;
import javax.swing.JTable;
import javax.swing.border.MatteBorder;
import java.awt.Cursor;
import java.awt.Font;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.awt.event.ActionEvent;
import javax.swing.JTextField;
import javax.swing.JPanel;
import java.awt.ComponentOrientation;
public class window {
private JFrame frmStinkt;
private JLabel label;
private JTextArea textArea;
private JTable table;
private static ArrayList<JButton> buttons = new ArrayList<JButton>();
private JTextField textField;
private static WindowGame newGame;
private static int test = 0;
/**
* Launch the application.
*/
public static void main(String[] args)
{
window window = new window(104, 4);
window.frmStinkt.setVisible(true);
newGame = new WindowGame(104, 4, window.textArea, window.table);
newGame.initGame();
setButtonNames(newGame.players.get(0).cards);
window.enableButtons();
}
/**
* Create the application.
*/
public window(int numberOfCards, int numberOfRows)
{
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
Font defaultFont = new Font("Gill Sans MT",Font.BOLD,14);
frmStinkt = new JFrame();
frmStinkt.setTitle("6 STINKT!");
frmStinkt.getContentPane().setForeground(Color.GREEN);
frmStinkt.getContentPane().setFocusTraversalPolicyProvider(true);
frmStinkt.getContentPane().setBackground(Color.BLACK);
frmStinkt.setBounds(400, 200, 600, 450);
frmStinkt.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frmStinkt.getContentPane().setLayout(null);
JScrollPane scrollPane = new JScrollPane();
scrollPane.setBorder(null);
scrollPane.setBounds(83, 18, 420, 130);
frmStinkt.getContentPane().add(scrollPane);
textArea = new JTextArea();
textArea.setBorder(new LineBorder(new Color(0, 255, 0), 2, true));
textArea.setEditable(false);
scrollPane.setViewportView(textArea);
textArea.setWrapStyleWord(true);
textArea.setForeground(Color.GREEN);
textArea.setBackground(Color.BLACK);
textArea.setLineWrap(true);
textArea.setFont(new Font("Gill Sans MT", Font.BOLD, 13));
label = new JLabel("CARDS");
label.setEnabled(false);
label.setHorizontalAlignment(SwingConstants.CENTER);
label.setForeground(Color.GREEN);
label.setBackground(Color.DARK_GRAY);
label.setFont(defaultFont);
label.setBounds(254, 264, 78, 23);
frmStinkt.getContentPane().add(label);
table = new JTable();
table.setShowVerticalLines(false);
table.setGridColor(new Color(0, 255, 0));
table.setForeground(Color.GREEN);
table.setBorder(new MatteBorder(1, 1, 1, 1, (Color) new Color(0, 255, 0)));
table.setBackground(Color.BLACK);
table.setBounds(165, 160, 255, 64);
table.setFont(new Font("Gill Sans MT", Font.BOLD, 14));
frmStinkt.getContentPane().add(table);
textField = new JTextField();
textField.setEditable(false);
textField.setForeground(new Color(0, 255, 0));
textField.setBackground(Color.DARK_GRAY);
textField.setFont(new Font("Gill Sans MT", Font.BOLD, 14));
textField.setBounds(277, 235, 32, 25);
frmStinkt.getContentPane().add(textField, BorderLayout.CENTER);
textField.setHorizontalAlignment(JTextField.CENTER);
textField.setColumns(10);
JPanel panel = new JPanel();
panel.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
panel.setBackground(Color.BLACK);
panel.setBounds(10, 284, 564, 66);
frmStinkt.getContentPane().add(panel);
JButton button0 = new JButton("---");
panel.add(button0);
button0.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button0.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
button0.setVisible(false);
test = buttons.indexOf(button0);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(0)));
disableButtons();
newGame.HumanTurn(test);
buttons.remove(0);
}
});
button0.setForeground(new Color(0, 255, 0));
button0.setBackground(Color.decode("#000000"));
button0.setFont(defaultFont);
button0.setOpaque(true);
button0.setRequestFocusEnabled(false);
button0.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button0);
JButton button1 = new JButton("---");
panel.add(button1);
button1.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(1);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(1)));
disableButtons();
panel.remove(button0);
}
});
button1.setForeground(new Color(0, 255, 0));
button1.setBackground(Color.decode("#000000"));
button1.setFont(defaultFont);
button1.setOpaque(true);
button1.setRequestFocusEnabled(false);
button1.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button1);
JButton button2 = new JButton("---");
panel.add(button2);
button2.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(2);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(2)));
disableButtons();
}
});
button2.setForeground(new Color(0, 255, 0));
button2.setBackground(Color.decode("#000000"));
button2.setFont(defaultFont);
button2.setOpaque(true);
button2.setRequestFocusEnabled(false);
button2.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button2);
JButton button3 = new JButton("---");
panel.add(button3);
button3.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(3);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(3)));
disableButtons();
}
});
button3.setRequestFocusEnabled(false);
button3.setForeground(new Color(0, 255, 0));
button3.setBackground(Color.decode("#000000"));
button3.setFont(defaultFont);
button3.setOpaque(true);
button3.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button3);
JButton button4 = new JButton("---");
panel.add(button4);
button4.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button4.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(4);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(4)));
disableButtons();
}
});
button4.setRequestFocusEnabled(false);
button4.setForeground(new Color(0, 255, 0));
button4.setBackground(Color.decode("#000000"));
button4.setFont(defaultFont);
button4.setOpaque(true);
button4.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button4);
JButton button5 = new JButton("---");
panel.add(button5);
button5.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button5.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(5);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(5)));
disableButtons();
}
});
button5.setRequestFocusEnabled(false);
button5.setForeground(new Color(0, 255, 0));
button5.setBackground(Color.decode("#000000"));
button5.setFont(defaultFont);
button5.setOpaque(true);
button5.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button5);
JButton button6 = new JButton("---");
panel.add(button6);
button6.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button6.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(6);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(6)));
disableButtons();
}
});
button6.setRequestFocusEnabled(false);
button6.setForeground(new Color(0, 255, 0));
button6.setBackground(Color.decode("#000000"));
button6.setFont(defaultFont);
button6.setOpaque(true);
button6.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button6);
JButton button7 = new JButton("---");
panel.add(button7);
button7.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button7.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(7);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(7)));
disableButtons();
}
});
button7.setRequestFocusEnabled(false);
button7.setForeground(new Color(0, 255, 0));
button7.setBackground(Color.decode("#000000"));
button7.setFont(defaultFont);
button7.setOpaque(true);
button7.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button7);
JButton button8 = new JButton("---");
panel.add(button8);
button8.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button8.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(8);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(8)));
disableButtons();
}
});
button8.setRequestFocusEnabled(false);
button8.setForeground(new Color(0, 255, 0));
button8.setBackground(Color.decode("#000000"));
button8.setFont(defaultFont);
button8.setOpaque(true);
button8.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button8);
JButton button9 = new JButton("---");
panel.add(button9);
button9.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
button9.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
newGame.HumanTurn(9);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(9)));
disableButtons();
}
});
button9.setRequestFocusEnabled(false);
button9.setForeground(new Color(0, 255, 0));
button9.setBackground(Color.decode("#000000"));
button9.setFont(defaultFont);
button9.setOpaque(true);
button9.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(button9);
JButton random_1 = new JButton("RANDOM");
random_1.setBounds(238, 361, 105, 25);
frmStinkt.getContentPane().add(random_1);
random_1.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
random_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
int random = (int)(Math.random() * newGame.players.get(0).cards.size());
newGame.HumanTurn(random);
textField.setText(Integer.toString(newGame.players.get(0).cards.get(random)));
disableButtons();
}
});
random_1.setRequestFocusEnabled(false);
random_1.setForeground(new Color(0, 255, 0));
random_1.setBackground(Color.decode("#000000"));
random_1.setFont(defaultFont);
random_1.setOpaque(true);
random_1.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
buttons.add(random_1);
disableButtons();
}
public void enableButtons()
{
for(int i=0; i<buttons.size(); i++)
buttons.get(i).setEnabled(true);
label.setEnabled(true);
}
public void disableButtons()
{
for(int i=0; i<buttons.size(); i++)
buttons.get(i).setEnabled(false);
label.setEnabled(false);
}
public static void setButtonNames(ArrayList<Integer> cards)
{
for(int i=0; i<buttons.size() - 1; i++)
buttons.get(i).setText(cards.get(i).toString());
}
}
我了解到我可能可以通过使用 swingWorker 来解决这个问题。我找到了一个有用的进度条演示，但我不知道如何用我的方法使用它。我将不胜感激任何帮助。提前致谢！
这是它的样子：
这里是按钮按下和打印调用的方法：
public void HumanTurn(int cardIndex)
{
print("Du hast " + players.get(0).cards.get(cardIndex) + " gewählt.", textSpeedNormal);
next += 1;
BotTurn();
}
public void print(String text, int speed)
{
for(int i=0; i<text.length(); i++)
{
textArea.append(text.substring(i, (i+1)));
try {
Thread.sleep(speed);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
textArea.append("\n");
textArea.setCaretPosition(textArea.getDocument().getLength());
}
Thread.sleep(speed);
不要使用 Thread.sleep(...)。
这会使 Event Dispatch Thread (EDT) 进入休眠状态，因此 GUI 无法响应事件或重新绘制自身。有关详细信息，请阅读 Concurrency 上的 Swing 教程。
而是使用 Swing Timer 来安排动画。 Swing Timer 取代了循环代码。每次计时器触发时，您都会执行一些操作，在本例中，向文本区域添加一个字符。
一种方法可能是将文本添加到 StringBuilder。然后，每次 Timer 触发时，您都会从 StringBuilder 中删除第一个字符并将其附加到文本区域。当 StringBuilder 为空时，您将停止计时器。