added in version 22.1.0

android.support.v4.widget

Interfaces

DrawerLayout.DrawerListener Listener for monitoring events about drawers. 
NestedScrollView.OnScrollChangeListener Interface definition for a callback to be invoked when the scroll X or Y positions of a view change. 
SimpleCursorAdapter.CursorToStringConverter This class can be used by external clients of SimpleCursorAdapter to define how the Cursor should be converted to a String. 
SimpleCursorAdapter.ViewBinder This class can be used by external clients of SimpleCursorAdapter to bind values fom the Cursor to views. 
SlidingPaneLayout.PanelSlideListener Listener for monitoring events about sliding panes. 
SwipeRefreshLayout.OnChildScrollUpCallback Classes that wish to override canChildScrollUp() method behavior should implement this interface. 
SwipeRefreshLayout.OnRefreshListener Classes that wish to be notified when the swipe gesture correctly triggers a refresh should implement this interface. 
TintableCompoundButton Interface which allows a CompoundButton to receive tinting calls from CompoundButtonCompat when running on API v20 devices or lower. 

Classes

AutoScrollHelper AutoScrollHelper is a utility class for adding automatic edge-triggered scrolling to Views. 
CircularProgressDrawable Drawable that renders the animated indeterminate progress indicator in the Material design style without depending on API level 11. 
CompoundButtonCompat Helper for accessing CompoundButton. 
ContentLoadingProgressBar ContentLoadingProgressBar implements a ProgressBar that waits a minimum time to be dismissed before showing. 
CursorAdapter Static library support version of the framework's CursorAdapter. 
DrawerLayout DrawerLayout acts as a top-level container for window content that allows for interactive "drawer" views to be pulled out from one or both vertical edges of the window. 
DrawerLayout.LayoutParams  
DrawerLayout.SavedState State persisted across instances  
DrawerLayout.SimpleDrawerListener Stub/no-op implementations of all methods of DrawerLayout.DrawerListener. 
EdgeEffectCompat Helper for accessing EdgeEffect. 
ExploreByTouchHelper ExploreByTouchHelper is a utility class for implementing accessibility support in custom Views that represent a collection of View-like logical items. 
ImageViewCompat Helper for accessing features in ImageView. 
ListPopupWindowCompat Helper for accessing features in ListPopupWindow. 
ListViewAutoScrollHelper An implementation of AutoScrollHelper that knows how to scroll through a ListView. 
ListViewCompat Helper for accessing features in ListView  
NestedScrollView NestedScrollView is just like ScrollView, but it supports acting as both a nested scrolling parent and child on both new and old versions of Android. 
PopupMenuCompat Helper for accessing features in PopupMenu. 
PopupWindowCompat Helper for accessing features in PopupWindow. 
ResourceCursorAdapter Static library support version of the framework's ResourceCursorAdapter. 
ScrollerCompat This class was deprecated in API level 26.1.0. Use OverScroller directly.  
SimpleCursorAdapter Static library support version of the framework's SimpleCursorAdapter. 
SlidingPaneLayout SlidingPaneLayout provides a horizontal, multi-pane layout for use at the top level of a UI. 
SlidingPaneLayout.LayoutParams  
SlidingPaneLayout.SimplePanelSlideListener No-op stubs for SlidingPaneLayout.PanelSlideListener. 
Space This class was deprecated in API level 27.1.0. Use framework Space class instead.  
SwipeRefreshLayout The SwipeRefreshLayout should be used whenever the user can refresh the contents of a view via a vertical swipe gesture. 
TextViewCompat Helper for accessing features in TextView. 
ViewDragHelper ViewDragHelper is a utility class for writing custom ViewGroups. 
ViewDragHelper.Callback A Callback is used as a communication channel with the ViewDragHelper back to the parent view using it.