Navigation hideybar via new system ui opt-in flag.
Apps using SYSTEM_UI_FLAG_HIDE_NAVIGATION to hide the nav bar
or SYSTEM_UI_FLAG_FULLSCREEN to hide the status bar can now
opt into hideybars by also using a new public sysui flag:
View.SYSTEM_UI_FLAG_ALLOW_OVERLAY
When opting in, apps accept the fact that bars can be overlayed
over their content, but gain the ability to use the entire gesture
space - something that was not possible before, particularly when
hiding the nav bar.
Swiping from the nav bar edge of the screen will reveal the new hidey
version of the nav bar, if applicable.
Bug: 8682181
Change-Id: I6405bee50e6516667ba6b9a62d4f1e43490b5562
7 files changed