小编Fra*_*gus的帖子

我不明白这一点,我正在为我正在制作的游戏制作一个主菜单,但出于某种原因,当我将鼠标悬停在JButton上时,它会在JFrame的左上方闪烁.我没有任何mouseAction方法或任何东西,是我正在使用的gif吗？我不确定...

这是一个错误的屏幕抓图

这是我的代码:

import javax.swing.*;
import java.awt.*;

public class MainMenu {
JFrame frame = new JFrame("Frasergatchi");

public void display(){
    frame.setSize(400,400);
    frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    frame.setResizable(false);
    frame.setVisible(true);
}

public void addComponents(){
    JButton play = new JButton("Play");
    JButton instructions = new JButton("Instructions");
    JButton exit = new JButton("Exit");
    JPanel panel = new JPanel();
    paintMenu paintMenu = new paintMenu();

    panel.setLayout(new BoxLayout(panel,BoxLayout.Y_AXIS));

    frame.add(panel);

    play.setAlignmentX(Component.CENTER_ALIGNMENT);
    instructions.setAlignmentX(Component.CENTER_ALIGNMENT);
    exit.setAlignmentX(Component.CENTER_ALIGNMENT);

    panel.add(paintMenu);
    panel.add(play);
    panel.add(instructions);
    panel.add(exit);
}

public class paintMenu extends JPanel{
    public void paintComponent(Graphics graphics){
        Image dog = new ImageIcon(getClass().getResource("DogMenuImage.gif")).getImage();
        graphics.drawImage(dog,170,240,this);
    }
} …