Turns out that the flag for the window being obscured
does not imply that it is also partially obscured.
Also blocking system alerts and toast windows over the
accessibility service preference screen (and its associated
warning dialog) as well as the warning dialog shown when
a service is made available with the accessibiity shortcut.
Bug: 62104030
Test: Manually verified that I can't enable Select to Speak
when switch access is highlighting the button. I am able to
do that without this fix. Also started a service that
displayed a system overlay and confirmed that the overlay
disappears on a11y service preference screens and when a
new service is configured for the a11y shortcut.
Merged-In: Ie00bafa736c837881a258c9de10891b27c5baefd
Change-Id: Iabbded1a12dbc33d76e51c0bac710280a88080f3
Per API council review, localized strings should return CharSequence. Changes here
account for the different type returned.
Test: ag/1813674
Bug: 37723508
Change-Id: I7dacab8af48932db031de22835b65eba30393956
Wasn't checking if the user actually agreed. Whoops.
Bug: 37123004
Test: Manually verified that canceling leaves the selection
unchanged.
Change-Id: I48a052eb74733d3d0105fc1e72c4bf77ce8be0c5
Adding shortcut on/off switch, improving the service picker,
and adding a switch to enable the shortcut on the lock screen.
Also adjusted setting search code to avoid indexing the
accessibility shortcut aside from the main accessibility settings
page.
Bug: 35872328
Bug: 35219988
Test: Ran in a variety of conditions, ran existing settings test.
Also added basic robo test, verified existing robo tests pass.
Change-Id: I4da9bad74caf96d9c8f3640e7db5417b4ee5d602
