模式对话框后面的java工具提示

Question

如何检查这类问题。当我查看桌面应用程序的菜单时，有些菜单显示了关闭按钮的工具提示，该按钮应始终位于最前面。但有些显示在模态对话框的后面

错误截图：

我有点像发这篇文章的人一样的问题：https://coderanch.com/t/460688/java/Glasspanes-tooltips

import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;


class GlassPaneContent extends JPanel {

    GlassPaneContent() {
        setSize(200, 50);
        ToolTipManager.sharedInstance().setLightWeightPopupEnabled(false);
        JButton button = new JButton("A button");
        button.setToolTipText("A tooltip");
        add(button);

    }
}

class GlassPane extends JPanel {

    private static final Color BG_COLOR = new Color(0, 0, 0, 96);
    private GlassPaneContent content = new GlassPaneContent();

    public GlassPane() {
        setLayout(null);
        setOpaque(false);
        add(content);
    }

    @Override
    protected void paintComponent(Graphics g) {
        g.setColor(BG_COLOR);
        g.fillRect(0, 0, getWidth(), getHeight());
        int x = (getWidth() - content.getWidth()) / 2;
        int y = (getHeight() - content.getHeight()) / 2;
        content.setLocation(x, y);
        super.paintComponent(g);
    }
}

public class MainWindow extends JFrame {

    public MainWindow() {
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(500, 500);
        GlassPane gp = new GlassPane();
        getRootPane().setGlassPane(gp);
        gp.setVisible(true);
    }

    public static void main(String[] args) {
        new MainWindow().setVisible(true);
    }
}

我们正在使用JAVA Swing。如果我需要发布代码，请在下面发表评论。谢谢!

Answer 1

试试这个：

public class MainWindow extends JFrame {

    public MainWindow() {
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(500, 500);
        GlassPane gp = new GlassPane();
        setContentPane(gp);
        this.setVisible(true);
    }

    public static void main(String[] args) {
        new MainWindow();
    }
}