overlay Closing Animation Duration Ms
The duration (in milliseconds as a positive long) of the closing animations for ALL the Overlays inside of this ExpandableFabLayout. A convenience method so that clients don't have to set the same value for every Overlay within a single ExpandableFabLayout.
Set to 0L if you don't want closing animations for ANY Overlays within this ExpandableFabLayout.
NOTE: This property will override whatever you set on individual Overlays. If you only want to change the closing animation duration for a single Overlay, leave this property as null and see Overlay.closingAnimationDurationMs.