Expandable Fab Layout
Used to create an ExpandableFabLayout programmatically (do not use the other constructor ExpandableFabLayout(context, attributeSet) - it is for use by the Android framework when inflating an ExpandableFabLayout via XML).
Called by the system when creating an ExpandableFabLayout via XML (don't call this directly). To create an ExpandableFabLayout programmatically, use the ExpandableFabLayout(context) constructor.