onToped JFrame打开JDialog =对话框，而不是在JFrame上

Question

Well, if we have onToped JFrame

this.setAlwaysOnTop(true);

and then open JDialog

private void colorChooseMenuItemActionPerformed(java.awt.event.ActionEvent evt) {                                                    
    ColorDialog fc = new ColorDialog();
    fc.setLocationRelativeTo(this);
    fc.setModal(true);
    fc.setVisible(true);
} 

in this case JDialog will be 'under' JFrame . When I click to frame, dialog moved to top. If I close dialog (dispose on close) and open again it start working normally and showed over JFrame

What's happening?

Answer 1

ColorDialog应该将jFrame作为父级。