Behind The Scenes Of Researching Android 9 Pie'S System Navigation

The Android operating system runs on more than 2 billion smartphones, tablets, and other devices. In this case study, we go behind the scenes of the user experience research process at Google that led to the design of Android 9 Pie's system navigation. We describe the type of research we conducted over a 9 month period and what we learned about smartphone system navigation and gestures.