- 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
Added a base class SettingsPreferenceFragment from which the settings activities should
be derived so that they can behave like fragments. It contains some commonly called
utility methods and dialog conversion to DialogFragment.
Some of the top-level activities can be launched directly without the left pane.
Settings.java acts as a proxy activity that contains just that settings fragment without
the left pane.
There are still a lot of second and third level activities that need to be fragmentized.
This is just the first pass to test the 2-pane layout.
