Programmatically enabling/disabling accessibility settings on Android device

Question

How can I programmatically enable/disable an android screen reader service such as TalkBack?

I am developing a kiosk type application that will be installed on an Androi

Answer 1

From lollipop you can not change all settings that breaks the security policy. Some of them you may access but you have to take permission for that. So please don't waste time on that.