First thing first, sorry for my English, I am not a native speaker.
What I want to achieve is the following: I have a checkbox for option A in my preferences xml, and I have two (or more) options A.1, A.2, ..., A.n that have option A as a prerequisite. If one of the options A.n is checked, option A has to be checked automatically. Is this possible, and if yes, how can i do that?
Example:
Option A
Option A.1
Option A.2 ...
If Option A.1 is checked, i want something along the lines like this:
X Option A
X Option A.1
Option A.2
I tried using a MultiSelectListPreference to do this.