Implement all Android widgets

[frmdstryr]

From android.widgets package:

• [ ] ActionMenuView
• [x] AdapterView
• [ ] AdapterViewAnimator
• [ ] AdapterViewFlipper
• [ ] AlphabetIndexer
• [x] AnalogClock
• [x] AutoCompleteTextView
• [x] Button
• [x] CalendarView
• [x] CheckBox
• [ ] CheckedTextView
• [x] Chronometer
• [x] CompoundButton
• [ ] CursorAdapter
• [ ] CursorTreeAdapter
• [x] DatePicker
• [ ] DialerFilter
• [ ] EdgeEffect
• [x] EditText
• [ ] ExpandableListView
• [ ] Filter
• [x] FrameLayout
• [ ] Gallery
• [x] GridLayout
• [ ] GridView
• [x] HorizontalScrollView
• [x] ImageButton
• [ ] ImageSwitcher
• [x] ImageView
• [x] LinearLayout
• [ ] ListPopupWindow
• [x] ListView
• [ ] MediaController
• [ ] MultiAutoCompleteTextView
• [x] NumberPicker
• [ ] OverScroller
• [ ] PopupMenu
• [ ] PopupWindow
• [x] ProgressBar
• [ ] QuickContactBadge
• [x] RadioButton
• [x] RadioGroup
• [x] RatingBar
• [x] RelativeLayout
• [ ] RemoteViews
• [ ] Scroller
• [x] ScrollView
• [ ] SearchView
• [x] SeekBar
• [ ] ShareActionProvider
• [ ] SimpleAdapter
• [ ] SlidingDrawer
• [x] Space
• [x] Spinner
• [ ] StackView
• [x] Switch
• [ ] TableLayout
• [ ] TableRow
• [x] TextClock
• [ ] TextSwitcher
• [x] TextView
• [x] TimePicker
• [x] Toast
• [x] ToggleButton
• [x] Toolbar
• [ ] TwoLineListItem
• [x] VideoView
• [ ] ViewAnimator
• [ ] ViewFlipper
• [ ] ViewSwitcher
• [ ] ZoomButton
• [ ] ZoomButtonsController
• [ ] ZoomControls

From android.webkit package:

• [x] WebView

From android.support.v4 package:

• [x] DrawerLayout
• [x] ViewPager

From android.support.v7 package:

• [x] CardView

From android.support.design package:

• [x] TabLayout
• [x] Snackbar
• [x] BottomSheet

[frmdstryr]

I think most of the common widgets are done. Please open an issue if something is missing.