- Add button bar feature toward SettingsPreferenceFragment,
which has existed in PreferenceActivity and has been used
(probably) only by Settings app.
- super.onActivityCreated() is not called at the beggining of
WifiSettings#onActivityCreated(), the parent method assumes
the child should have prepared PreferenceScreen, while
WifiSettings cannot do until the parent Activity is ready.
- Call SetHasOptionMenu() should be called AFTER the parent
Activity is ready. It is not documented, so it would be better
to file another bug.
- Add exception to proguard...
Change-Id: Iebd27f0cb0abdbee9b4b1cc9b00f4bf127f7815d
