==============
我正在创建一个小型2D游戏，其中包含一个“主菜单”GUI和一个“游戏内”GUI（用于渲染图形）。
主菜单自然有一个“开始”按钮来创建游戏世界和游戏内GUI。如果单独运行它们，所有组件都可以正常工作，但如果调用“开始”按钮上的动作侦听器中的“actionPerformed”，则游戏内GUI不会正确呈现所有按钮/标签/滚动窗格，并且不会应用默认关闭操作。
在左侧，不会渲染按钮。在右边，他们是。
产生左/右图像的代码之间的差异：
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class BensGUI extends JFrame{
public BensGUI()
{
final JFrame bensGUI = this;
Container pane = this.getContentPane();
JPanel mainPanel = new JPanel();
JButton start = new JButton("Start");
mainPanel.add(start);
//This GUI is simplified from the real Main Menu
start.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Player p1 = new Player("player 1", new AntBrainParser().parseBrain("cleverbrain2.brain"));
Player p2 = new Player("player 2", new AntBrainParser().parseBrain("horseshoe.brain"));
Pos[][] ps = new MapParser().parseMap("5.world"); //The World class creates the in-game GUI inside its constructor
World w = new World(p1, p2, ps, 3427);
}
} );
pane.add(mainPanel);
this.pack();
this.setVisible(true);
}
}
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class BensGUI extends JFrame{
public BensGUI()
{
final JFrame bensGUI = this;
Container pane = this.getContentPane();
JPanel mainPanel = new JPanel();
JButton start = new JButton("Start");
mainPanel.add(start);
Player p1 = new Player("player 1", new AntBrainParser().parseBrain("cleverbrain2.brain"));
Player p2 = new Player("player 2", new AntBrainParser().parseBrain("horseshoe.brain"));
Pos[][] ps = new MapParser().parseMap("5.world");
World w = new World(p1, p2, ps, 3427); //The World class creates the in-game GUI inside its constructor
start.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
} );
//This GUI is simplified from the real Main Menu
pane.add(mainPanel);
this.pack();
this.setVisible(true);
}
}
请注意，当按钮不显示时，您无法通过单击右上角的“X”关闭窗口（尽管执行了setDefaultCloseOperation行）。调整窗口大小会导致重新绘制“毛刺”（imgur.com/bOpCzGC）。点击/悬停时按钮不会重新显示或反应。
我看不出是什么导致了这个问题，并试图找到解决办法。有人能在这里帮助我吗？这将不胜感激！
亲切的问候，
-Ben
以下是导致问题的所有代码。我只包含了构造函数（现在），因为即使只运行它们也会导致问题。
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.*;
import javax.imageio.ImageIO;
import java.io.*;
import java.util.ArrayList;
import java.util.Random;
import java.util.HashMap;
public class SimulationGUI extends JFrame{
Pos[][] position;//2D array of positions which contains all the info about the cells
int imageXSize = 25;
int imageYSize = 27;
int imageXOffset = 21;
int rowOffsetValue = (imageXOffset/2);
int imageYOffset = 16;
int curRound = 0;
boolean isRendering = true;
public boolean isActive = true;
int antTrackerID = 50;
JFrame simGUIFrame = this;
// public static void main(String[] args)
// {
// System.setProperty("sun.java2d.opengl","True");
// MapParser mp = new MapParser();
// SimulationGUI gui = new SimulationGUI("Some text", mp.parseMap("1.world"));
// gui.setUpWorld();
// }
//GUI ELEMENTS
JPanel groundCanvas;
BufferedImage offscreen;
BufferedImage background;
Graphics2D offScrGfx;
Graphics2D bckGrdGfx;
JScrollPane scrollPane;
//Graphics2D g2d = new Graphics2D();
//A load of ant and food images
BufferedImage antBLK_S;
BufferedImage antBLK_SE;
BufferedImage antBLK_E;
BufferedImage antBLK_NE;
BufferedImage antBLK_N;
BufferedImage antBLK_NW;
BufferedImage antBLK_W;
BufferedImage antBLK_SW;
BufferedImage antBLKF_S;
BufferedImage antBLKF_SE;
BufferedImage antBLKF_E;
BufferedImage antBLKF_NE;
BufferedImage antBLKF_N;
BufferedImage antBLKF_NW;
BufferedImage antBLKF_W;
BufferedImage antBLKF_SW;
BufferedImage antRED_S;
BufferedImage antRED_SE;
BufferedImage antRED_E;
BufferedImage antRED_NE;
BufferedImage antRED_N;
BufferedImage antRED_NW;
BufferedImage antRED_W;
BufferedImage antRED_SW;
BufferedImage antREDF_S;
BufferedImage antREDF_SE;
BufferedImage antREDF_E;
BufferedImage antREDF_NE;
BufferedImage antREDF_N;
BufferedImage antREDF_NW;
BufferedImage antREDF_W;
BufferedImage antREDF_SW;
BufferedImage food_5;
BufferedImage food_4;
BufferedImage food_3;
BufferedImage food_2;
BufferedImage food_1;
BufferedImage antTrackCell;
ImageIcon boxChecked = new ImageIcon("Images/Check Button checked.png");
ImageIcon boxUnChecked = new ImageIcon("Images/Check Button unchecked.png");
ImageIcon playButton = new ImageIcon("Images/Play Button.png");
ImageIcon pausedButton = new ImageIcon("Images/Paused Button.png");
ImageIcon restartIcon = new ImageIcon("Images/Restart Icon.png");
ImageIcon quitIcon = new ImageIcon("Images/Quit Icon.png");
ImageIcon foodIcon = new ImageIcon("Images/foodIcon.png");
//Variables used in GUI
JProgressBar progressBar;
World world;
JLabel roundCounter;
String roundNum;
JLabel redCount;
JLabel blkCount;
JLabel foodCount;
JButton renderPause;
JLabel redScore;
JLabel blkScore;
JLabel antTrackerLabel;
JTextField antTrackerIDBox;
//Parameters used by the World Class
HashMap<Integer, Ant> antMap = new HashMap<Integer, Ant>();
ArrayList<Pos> foodPosArray = new ArrayList<Pos>();
public SimulationGUI(String title, Pos[][] positionArray, World w)
{
groundCanvas = new JPanel();
redCount = new JLabel("Red Ants: ######", boxUnChecked, JLabel.LEFT);
blkCount = new JLabel("Black Ants: ######", boxUnChecked, JLabel.LEFT);
foodCount = new JLabel("Food: ######", foodIcon, JLabel.LEFT);
redScore = new JLabel("Red Score: ######");
blkScore = new JLabel("Blk Score: ######");
renderPause = new JButton("Render", boxChecked);
scrollPane = new JScrollPane(groundCanvas);
antTrackerLabel = new JLabel("Ant ID");
antTrackerIDBox = new JTextField("20");
this.world = w;
this.position = positionArray;
this.setTitle("Ant Simulation | "+title);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocation(400, 400);
this.setVisible(true);
Container pane = this.getContentPane();
//Graphics Setup
// System.setProperty("sun.java2d.opengl","True");
//Canvas and JScrollPane
groundCanvas.setPreferredSize(new Dimension(imageXOffset*position.length + 10,imageYOffset*position.length + 10));
offscreen = (BufferedImage) createImage(imageXOffset*position.length + 10,imageYOffset*position.length + 10);
background = (BufferedImage) createImage(imageXOffset*position.length + 10,imageYOffset*position.length + 10);
offScrGfx = (Graphics2D) offscreen.getGraphics();
bckGrdGfx = (Graphics2D) background.getGraphics();
scrollPane.add(groundCanvas);
scrollPane.setPreferredSize(new Dimension(800,450));
scrollPane.setViewportView(groundCanvas);
///////////////////////////
JPanel topPanel = new JPanel();
JPanel middlePanel = new JPanel();
JPanel bottomPanel = new JPanel();
JPanel bottomMainPanel = new JPanel();
JPanel topMainPanel = new JPanel();
JPanel antTracker = new JPanel();
bottomPanel.setLayout(new BorderLayout());
topMainPanel.setLayout(new GridLayout(2,3));
topPanel.setLayout(new BorderLayout());
antTracker.setLayout(new BorderLayout());
JButton restartButton = new JButton("Restart", restartIcon);
final JButton pauseButton = new JButton("Pause", playButton);
JButton quitButton = new JButton("Quit", quitIcon);
final JButton speedUp = new JButton("");
final JButton slowDown = new JButton("");
speedUp.setIcon(new ImageIcon("Images/speedUp.png"));
slowDown.setIcon(new ImageIcon("Images/slowDown.png"));
// progressBar = new JProgressBar(0, w.maxRounds);
// progressBar.setValue(0);
// progressBar.setStringPainted(true);
roundCounter = new JLabel("Round: #######");
//ACTION LISTENERS////////
//Action listeners are commented out for now...
//Add the buttons/bars/labels to their panels
bottomMainPanel.add(roundCounter);
bottomMainPanel.add(speedUp);
bottomMainPanel.add(slowDown);
bottomMainPanel.add(renderPause);
bottomMainPanel.add(restartButton);
bottomMainPanel.add(pauseButton);
bottomMainPanel.add(quitButton);
bottomPanel.add(bottomMainPanel, BorderLayout.SOUTH);
//bottomPanel.add(progressBar, BorderLayout.NORTH);
JPanel antTrackerContainer = new JPanel();
antTrackerContainer.add(antTrackerLabel);
antTrackerContainer.add(antTrackerIDBox);
antTracker.add(antTrackerContainer, BorderLayout.WEST);
antTrackerIDBox.setPreferredSize(new Dimension(40, 20));
topMainPanel.add(redCount);
topMainPanel.add(redScore);
topMainPanel.add(foodCount);
topMainPanel.add(blkCount);
topMainPanel.add(blkScore);
topMainPanel.add(antTracker);
middlePanel.add(scrollPane);
topPanel.add(topMainPanel, BorderLayout.CENTER);
pane.add(topPanel, BorderLayout.NORTH);
pane.add(middlePanel, BorderLayout.CENTER);
pane.add(bottomPanel, BorderLayout.SOUTH);
this.pack();
}
World(Player player1, Player player2, Pos[][] positions, int initialSeed) {
// initialise variables
this.player1 = player1;
this.player2 = player2;
player1.setColour("red");
player2.setColour("black");
this.positions = positions;
this.foodPositions = new ArrayList<Pos>();
ants = new HashMap<Integer, Ant>();
this.initialSeed = initialSeed;
seed.add(new BigInteger("" + initialSeed)); // initial seed
for (int i = 1; i < 4; i++) {
seed.add(seed.get(i - 1).multiply(new BigInteger("22695477"))
.add(new BigInteger("1")));
}
generateAnts();
System.out.println(ants.size());
//In-Game GUI Setup:
sim = new SimulationGUI("", positions, this);
sim.setUpWorld();
sim.pack();
gameStart();
}
值得注意的是：
我已添加了此问题所需的所有代码
