tree 18e43b522d41fc58196e9650efa6cfd80fd77efc
parent 0abe81991398556485d6605dbeb57b64e2414f92
author Andy Wickham <awickham@google.com> 1584568066 +0000
committer Andy Wickham <awickham@google.com> 1584666109 +0000

Adds back gesture recognition to Sandbox.

This is used to step through the "happy path" of the existing
back tutorial steps (right edge and left edge). Unlike in the
Pixel Tips app, the tutorial only continues if you perform the
gesture from the correct edge of the screen.

This also lays the groundwork to provide helpful tips if the
expected gesture is performed incorrectly, although currently
such gestures are just ignored.

Demo: https://drive.google.com/open?id=12S42mZQITGzIWnj7mP1L__PCOgAQcjgp

Bug: 148542211
Change-Id: Ib2e0b2ff7c021db48c96d58e1370fa2e93330912