I am calling a PreferenceActivity from another activity and then updating the application state (ie: changing the font size) on onActivityResult, based on the preference changes.
I was thinking it would be better to put the state update logic in the PreferenceActivity. That way I don't have the duplicate the logic in each activity that calls the PreferenceActivity.
What's the best or correct way to do this?
Have any Activity
(or other component) that cares about preference changes register a preference change listener via registerOnSharedPreferenceChangeListener()
. Then, when the preferences change by any means, they will find out about it and can react accordingly.