问题描述
这是我遇到过的最奇怪的错误。 每当我启动程序时,大约2次中的1次,GUI就会成功创建并弹出。 在另外2次中的1次中,我没有gui,也没有错误,并且所有代码均以与成功创建gui时相同的顺序执行。
是什么导致此错误? 我该如何解决呢? 我一无所有
视图类:
package view;
import controller.GameController;
import lombok.Data;
import model.GameModel;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
@Data public class View extends JFrame {
GameInterface gameInterface = new GameInterface();
MainMenuScreen menuScreen = new MainMenuScreen();
public View() {
super("View");
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
displayMenuScreen();
setVisible(true);
}
public void displayMenuScreen(){
menuScreen.getSTARTTHEGAMEButton().addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
GameModel.getInstance().newGame();
displayGameInterface();
GameController.startGame();
}
});
setContentPane(menuScreen.getContentPane());
}
public void displayGameInterface(){
setContentPane(gameInterface.getContentPane());
}
}
主菜单类:
package view;
import lombok.Data;
import javax.swing.*;
@Data public class MainMenuScreen extends JFrame{
private JButton STARTTHEGAMEButton;
private JPanel rootPanelMainMenu;
private JTextPane crazyBananaRepublicTycoonTextPane;
public MainMenuScreen() {
super("MY GAME'S NAME");
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setContentPane(rootPanelMainMenu);
System.out.println("HEYHEY3");
}
}
创建视图的类:
import model.GameModel;
import model.GameModelObserver;
import view.View;
public class CrazyBananaRepublicTycoon {
public static final void main(String args[]){
View view = new View();
view.setVisible(true);
GameModelObserver gameModelObserver = new GameModelObserver(view.getGameInterface());
GameModel.getInstance().addObserver(gameModelObserver);
GameModel.getInstance().setGameModelObserver(gameModelObserver);
}
}
1楼
您没有正确使用事件调度线程...
您只能通过EDT与大多数Swing / AWT对象进行交互。
更改您的主要方法:
public static final void main(String args[]) {
EventQueue.invokeLater(new Runnable() {
public void run() {
View view = new View();
view.setVisible(true);
GameModelObserver gameModelObserver = new GameModelObserver(view.getGameInterface());
GameModel.getInstance().addObserver(gameModelObserver);
GameModel.getInstance().setGameModelObserver(gameModelObserver);
}
}
}