Talkback needs a programatic way to be shut off from another application (maybe Intent)

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In self voicing or accessible applications.  There needs to be a way for the 
applications to shut off talkback while in the application.  A possible way of 
doing this is having an intent based system that runs the suspendTalkback 
function in the TalkbackService.  It could even check if a user had allowed 
talkback to be suspended by the calling application before.  If not it could 
query the user and only allow the application to turn off talkback if the user 
wanted it to be.  All that would have to be added is a listener to the Talkback 
service and maybe some database code if it is really necessary to track the 
suspend.  The nice part about this is the code is all there so talkback would 
come right back on if a person pushed the power button.

Original issue reported on code.google.com by kpe...@blinksoft.com on 17 Apr 2014 at 4:55

rtchiew / eyes-free

Talkback needs a programatic way to be shut off from another application (maybe Intent) #362