how to add Transperent View and Gestures on FloatingMenuActionButton

Question

For adding FloatingMenu Action button in swift I used the following

Creating a floating menu in an iOS application

it is fine for showing FloatingMenuAction when we tapped on Floating Button it shows a view like as

Now I want add 1 transparent view as background on current view and also add a button actions/gestures for each menu option.

How can I do this? Thank you in advance