How can I protect views and their content from any accessibility service and maybe other ways spyware could read my apps data from the screen? Like banking apps (should) do it e.g.?
Background
I want to write a small open source and minimal password manager where you can just enter your sensitive data and read it, if desired and needed.
What I found so far is following
- I can set the IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS flag in my root view, this should save my app from accessibility services
Questions
- does the flag above reliably protect my app from any accessibility service?
- banking apps often disallow screenshots - how can I do this as well?
- anything else that I should block to protect my app?
