added in version 22.1.0
belongs to Maven artifact com.android.support:recyclerview-v7:28.0.0-alpha1
Summary: Nested Classes | XML Attrs | Ctors | Methods | Inherited Methods | [Expand All]

RecyclerView.LayoutManager

public static abstract class RecyclerView.LayoutManager
extends Object

java.lang.Object
   ↳ android.support.v7.widget.RecyclerView.LayoutManager
Known Direct Subclasses
Known Indirect Subclasses

A LayoutManager is responsible for measuring and positioning item views within a RecyclerView as well as determining the policy for when to recycle item views that are no longer visible to the user. By changing the LayoutManager a RecyclerView can be used to implement a standard vertically scrolling list, a uniform grid, staggered grids, horizontally scrolling collections and more. Several stock layout managers are provided for general use.

If the LayoutManager specifies a default constructor or one with the signature (Context, AttributeSet, int, int), RecyclerView will instantiate and set the LayoutManager when being inflated. Most used properties can be then obtained from getProperties(Context, AttributeSet, int, int). In case a LayoutManager specifies both constructors, the non-default constructor will take precedence.

Summary

Nested classes

interface RecyclerView.LayoutManager.LayoutPrefetchRegistry

Interface for LayoutManagers to request items to be prefetched, based on position, with specified distance from viewport, which indicates priority. 

class RecyclerView.LayoutManager.Properties

Some general properties that a LayoutManager may want to use. 

XML attributes

RecyclerView_android_orientation  
RecyclerView_reverseLayout  
RecyclerView_spanCount  
RecyclerView_stackFromEnd  

Public constructors

RecyclerView.LayoutManager()

Public methods

void addDisappearingView(View child, int index)

To be called only during onLayoutChildren(Recycler, State) to add a view to the layout that is known to be going away, either because it has been removed or because it is actually not in the visible portion of the container but is being laid out in order to inform RecyclerView in how to animate the item out of view.

void addDisappearingView(View child)

To be called only during onLayoutChildren(Re