This QmlFloatingActionMenu 'fam' component provides the ability to add Floating Actions Menus to a Qt/Qml cross-platform project. Floating Actions Menus were introduced in Material Design. One or more Floating Actions Menus can be added. Each menu can contain zero or more action buttons. In addition to the 'fam' component, there are 2 example projects included in this repository. This Floating Actions Menu is really easy to add to your application. See this projects screen-shots for some visual examples.
Details on how to use this Qt/QML component, see http://26apps.blogspot.com/2017/02/cross-platform-floating-action-menu.html.