When copying some text on Android, Google Translate displays a floating button on the side of the screen (top / right) that can be tapped to translate or just dragged up and down to not be obstructive.

enter image description here

What is the technical name of it?

It looks like a coin, but I cannot find any specific name or pattern for the implementation (in web development with JS/CSS) of these buttons.


Material refers to this as a Floating Action Button (FAB).

The transition to a menu shown in your example is considered one of the potential uses

Types of transitions

Upon press on Android, the FAB can transform into a menu containing related actions. A scrim indicates that functionality outside of the action menu is temporarily disabled. The menu remains on-screen until an action, or the scrim, is tapped.

Here's a snapshot example from the docs when a FAB turns into a menu: enter image description here

  • 1
    I'd recommend expanding on the FAB being a "floating action button." I read OP's question as more asking about the actual button rather than the menu ("...a floating button on the side of the screen...It looks like a coin..."), but good information nonetheless. I haven't seen these kinds of FAB transitions before, so this was interesting. Jan 23 '19 at 16:32
  • Yes, thanks for the reference, is still good info. But maxathousand nailed what I was actually asking (a side -floating & draggable- button). Jan 23 '19 at 16:49
  • ah yes...It is a Floating Action Button, as for the name.
    – Mike M
    Jan 23 '19 at 17:44

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