Gesture controls may be in store for the upcoming Android P; although it’s far from certain what this entails. An Android Developer blog post about network security posted a screenshot that accidentally revealed this little tidbit of information (although the image was later cropped to remove the spoiler).
The screenshot shows a back button and a gesture strip, instead of the three buttons usually associated with Android. The strip is similar to the one on the iPhone X. Which has started speculation about the nature of the new navigation bar layout.
It’s understood that the back button will also disappear when it is not in use; for example when at the home screen or in a app. For multitasking, users just need to pull up to call up the multitasking window.
Of course this build of Android P is still in early development, and Google will likely try many new ideas before the final build. This may however hint to a rethinking of the Android UI for future builds of the operating system.
(Source: 9to5Google )