Update existing Preference-item in a PreferenceActivity upon returning from a (sub)PreferenceScreen

Question

I have a PreferenceActivity with a bunch of (Sub)PreferenceScreens. Each such (Sub)PreferenceScreen represents an account and has the account-username as its title.

Answer 1

I found a solution to this. I have a hierarchy like this, each of these is a PreferenceScreen:

main settings
  -> users list
    -> user1 settings
    -> user2 settings
    ...

In the users list, title of the sub-screen is dependent on the user settings. Now when I create the user list, I store the list adapter to a variable in my PreferenceActivity.

 PreferenceScreen usersListScreen = ...
 userScreenListAdapter = (BaseAdapter)usersListScreen.getRootAdapter();

Now when userX-settings are edited, I set the titles in the usersListScreen and after that call:

userScreenListAdapter.notifyDataSetChanged();

which updates the list UI and the changes are visible.