- header
- The header that was selected.
- position
- The header's position in the list.
Called when the user selects an item in the header list. The default implementation will call either PreferenceActivity.StartWithFragment(string, Android.OS.Bundle, Android.OS.Bundle, Android.OS.Bundle, Android.OS.Bundle, Android.OS.Bundle) or PreferenceActivity.SwitchToHeader(.Header) as appropriate.