Android Floating Action Button Opens Small View

Question

In the Android App of Inbox by Google, when you press the FAB (Floating Action Button), a smaller view with options pop up. How would i go about implementing this?

[Picture taken on the web version for ease, but the effect and look is the same on the app.]

Answer 1

Floating Action Button for Android based on Material Design specification

https://github.com/futuresimple/android-floating-action-button

Answer 2

What you are looking for is called the Floating Action Button with Promoted Action for Android (Material Design). Based on Jerzy Chalupski (futuresimple) project linked above, The following github project provides exactly what you are looking for and more:

https://github.com/Clans/FloatingActionButton