Enhancement - Dim the background a bit when the menu is expanded

[iamMehedi]

Dim the parent view a bit when showing the menu.

[sathvik87]

I have done this with a simple view acting as a transparent background and maintaining hiding and showing state on the collapse of the menu.

[axiel7]

I have done this with a simple view acting as a transparent background and maintaining hiding and showing state on the collapse of the menu.

How to do that? There's no "collapse" listener in the library