Swing: canvas overlap menu

Question

I have a JFrame with a menu bar and a canvas covering the rest of the surface. When I click on the menu bar, the menu opens behind the Canvas, and I do not see it. Has anyone experienced this? Besides resizing the canvas (which I am reluctant to do) is there any solution?

Thanks
Vlad

Answer 1

You are experiencing severe and mild problems.

Quick fix:

// Call this sometime before you use your menus 
JPopupMenu.setDefaultLightWeightPopupEnabled(false)

Heavy vs Light

Answer 2

This happened to me when I resized the canvas that is on the JFrame. I just needed to call

Validate () on JFrame after resizing.

Good luck