android.preference
Interfaces 
Preference.OnPreferenceChangeListener
Preference.OnPreferenceClickListener
PreferenceFragment.OnPreferenceStartFragmentCallback
PreferenceManager.OnActivityDestroyListener
PreferenceManager.OnActivityResultListener
PreferenceManager.OnActivityStopListener
Classes 
CheckBoxPreference
DialogPreference
EditTextPreference
ListPreference
MultiSelectListPreference
Preference
Preference.BaseSavedState
PreferenceActivity
PreferenceActivity.Header
PreferenceCategory
PreferenceFragment
PreferenceGroup
PreferenceManager
PreferenceScreen
RingtonePreference
SwitchPreference
TwoStatePreference