5.x | Library structure

Package / Class / Interface	Description
eu.davidea.fastscroller
FastScroller	Fast ScrollBar imported from the project LollipopContactsRecyclerViewFastScroller and specifically adapted for this library: it works in conjunction with AnimatorAdapter. In the future, it will be removed in favor of a new library. MaterialScrollBar is a good candidate, it provides easier way to setup it and lot more functionalities.
eu.davidea.flexibleadapter
FlexibleAdapter	Front level of the Adapter. It's the core of the library. Provides all methods to manage the items. Holds the main list and the event interfaces. Extends AnimatorAdapter.
*AnimatorAdapter	Middle level of the Adapter. Provides methods to animate the items at the startup and during scroll action. For the moment, it holds static methods to compose the Animators, these methods will be moved in the Helper Class. Extends SelectableAdapter.
*SelectableAdapter	Lowest level of the Adapter. Provides selection functionalities and the FastScroller methods.
eu.davidea.flexibleadapter.common
DividerItemDecoration	Divider decoration between items with custom Drawable and section space separation.
FlexibleItemAnimator	Custom ItemAnimator implementation when adding/removing items.
SmoothScrollGridLayoutManager	Enhanced GridLayoutManager that adds the AutoScroll behavior for expandable items.
SmoothScrollLinearLayoutManager	Enhanced LinearLayoutManager that adds the AutoScroll behavior for expandable items.
SmoothScrollStaggeredLayoutManager	Enhanced StaggeredGridLayoutManagerthat adds the AutoScroll behavior for expandable items.
TopSnappedSmoothScroller	Common class used by the SmoothScroll layout managers.
eu.davidea.flexibleadapter.helpers
ActionModeHelper	Helper to activate the ActionMode on Activities/Fragments. It collaborates with FlexibleAdapter to handle the multiple selection and click events.
AnimatorHelper	Predefined methods for Scrolling Animation.
ItemTouchHelperCallback	Internal helper for Drag&Drop and Swipe functionalities. Holds internal interfaces for the Adapter. It is not completed yet: For swipeable items, it will support a childViewHolder to be displayed below the current ViewHolder during the swipe action. It will provides easy way to add such view.
StickyHeaderHelper	Internal helper to make a header sticky. Allows a sticky header to continue to listen the click events implemented in the FlexibleViewHolder.
UndoHelper	Helper to undo any operation on the list managed by the FlexibleAdapter, it shows a configurable SnackBar.
eu.davidea.flexibleadapter.items
*AbstractFlexibleItem	Abstract implementation for basic items. Holds flags and view holder creation.
*AbstractHeaderItem	Abstract implementation for header items. Holds flag for sticky behavior. By default the header item is hidden and not selectable!
*AbstractExpandableItem	Abstract implementation of expandable items. Holds an internal list for the subItems and the methods to manage it. Extends AbstractFlexibleItem.
*AbstractExpandableHeaderItem	Abstract implementation of expandable items that are also Headers.
*AbstractSectionableItem	Abstract implementation of header items. Holds the item reference to which it is attached to.
IExpandable	Add expandable functionality to the item. The adapter will check if the item belongs to this interface in order to be expanded or collapsed.
IFlexible	Basic interface for any item, the Adapter relies on this interface to set and read the current item status. Also it provides methods to: - Auto-map a view type - Create and bind the ViewHolder of the item.
IHeader	Basic interface for header item, the Adapter relies on this type to recognize that the item is a Header.
IHolder	Interface for an Adapter item to hold a complex custom model object, to be independent by others RecyclerView used simultaneously to display the same object.
ISectionable	Add Header functionality to the item. The Adapter treats this item differently, it holds a reference to the IHeader item, which is monitored and automatically adapted if this item is moved, removed or inserted.
IFilterable	Add filter specification to the item, the Adapter recognizes if an item can be filtered if it implements this interface and then it calls filter() method.
eu.davidea.flexibleadapter.utils
DrawableUtils	Utils for changing/assigning a background at runtime.
Utils	Utils for the library. Methods are declared public static.
eu.davidea.viewholders
*AnimatedViewHolder	Interface to start animations when Adding/Removing items. Overrides the custom ItemAnimator implementation.
*ContentViewHolder	ViewHolder used to setup sticky headers content.
*ExpandableViewHolder	ViewHolder for expandable items, you should extend this class if you want an expandable item, to benefit of the already implemented methods. Extends FlexibleViewHolder.
*FlexibleViewHolder	Basic ViewHolder. It handles the 4 listeners: ItemClickListener ItemLongClickListener ItemMoveListener ItemSwipeListener and the activation of the view. Also, it provides complex logic for selection coherence. You should extend this class if you want to benefit of the already implemented methods.

* = Abstract class

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