Re: Dissapearing menu bar
jny0 schrieb:
Hi,
I've cobbled together some code using NetBeans 6.1. A reduced version
of the code is below. When I run it, it sometimes shoes the menu bar
and sometimes doesn't. Any idea why? I'm also having some difficulty
with action listened, but I'll deal with that later.
First of all: do anything Swing related on the event dispatch thread
(EDT). And don't add the menu bar component to the content pane of the
frame.
This leads to something like this (untested):
public class Main {
private void createAndShowGUI() {
final JFrame frmMainFrame = new JFrame(
"2D-CA Viewer-ImportData");
frmMainFrame.setLayout(new GridLayout(5, 5));
JPanel pnlCAPanel = new JPanel(new FlowLayout());
frmMainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frmMainFrame.setSize(500, 500);
frmMainFrame.setVisible(true);
JMenuBar menuBar = new JMenuBar();
JMenu file = new JMenu("File");
menuBar.add(file);
JMenuItem getData = new JMenuItem("Get Data");
file.add(getData);
/* don't do this:
frmMainFrame.add(menuBar);
*/
frmMainFrame.setJMenuBar(menuBar);
}
public static void main(String[] args)
{
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new Main().createAndShowGUI();
}
});
}
}
Bye
Michael