added in version 1.0.0

androidx.core.widget

Interfaces

NestedScrollView.OnScrollChangeListener Interface definition for a callback to be invoked when the scroll X or Y positions of a view change. 
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. 
CompoundButtonCompat Helper for accessing CompoundButton
ContentLoadingProgressBar ContentLoadingProgressBar implements a ProgressBar that waits a minimum time to be dismissed before showing. 
EdgeEffectCompat Helper for accessing EdgeEffect
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
ScrollerCompat This class was deprecated in API level 1.0.0. Use OverScroller directly.  
TextViewCompat Helper for accessing features in TextView