StaggeredGridLayoutManager

Kotlin |Java

open class StaggeredGridLayoutManager : RecyclerView.LayoutManager, RecyclerView.SmoothScroller.ScrollVectorProvider

kotlin.Any
↳	androidx.recyclerview.widget.RecyclerView.LayoutManager
	↳	androidx.recyclerview.widget.StaggeredGridLayoutManager

A LayoutManager that lays out children in a staggered grid formation. It supports horizontal & vertical layout as well as an ability to layout children in reverse.

Staggered grids are likely to have gaps at the edges of the layout. To avoid these gaps, StaggeredGridLayoutManager can offset spans independently or move items between spans. You can control this behavior via setGapStrategy(int).

Summary

Nested classes
open	LayoutParams LayoutParams used by StaggeredGridLayoutManager.

Constants
static Int	GAP_HANDLING_LAZY
static Int	GAP_HANDLING_MOVE_ITEMS_BETWEEN_SPANS When scroll state is changed to RecyclerView#SCROLL_STATE_IDLE, StaggeredGrid will check if there are gaps in the because of full span items.
static Int	GAP_HANDLING_NONE Does not do anything to hide gaps.
static Int	HORIZONTAL
static Int	VERTICAL

Public constructors
<init>(context: Context!, attrs: AttributeSet!, defStyleAttr: Int, defStyleRes: Int) Constructor used when layout manager is set in XML by RecyclerView attribute "layoutManager".
<init>(spanCount: Int, orientation: Int) Creates a StaggeredGridLayoutManager with given parameters.

Public methods
open Unit	assertNotInLayoutOrScroll(message: String!)
open Boolean	canScrollHorizontally()
open Boolean	canScrollVertically()
open Boolean	checkLayoutParams(lp: RecyclerView.LayoutParams!)
open Int	computeHorizontalScrollExtent(state: RecyclerView.State)
open Int	computeHorizontalScrollOffset(state: RecyclerView.State)
open Int	computeHorizontalScrollRange(state: RecyclerView.State)
open PointF?	computeScrollVectorForPosition(targetPosition: Int)
open Int	computeVerticalScrollExtent(state: RecyclerView.State)
open Int	computeVerticalScrollOffset(state: RecyclerView.State)
open Int	computeVerticalScrollRange(state: RecyclerView.State)
open IntArray!	findFirstCompletelyVisibleItemPositions(into: IntArray!) Returns the adapter position of the first completely visible view for each span.
open IntArray!	findFirstVisibleItemPositions(into: IntArray!) Returns the adapter position of the first visible view for each span.
open IntArray!	findLastCompletelyVisibleItemPositions(into: IntArray!) Returns the adapter position of the last completely visible view for each span.
open IntArray!	findLastVisibleItemPositions(into: IntArray!) Returns the adapter position of the last visible view for each span.
open RecyclerView.LayoutParams!	generateDefaultLayoutParams()
open RecyclerView.LayoutParams!	generateLayoutParams(c: Context!, attrs: AttributeSet!)
open RecyclerView.LayoutParams!	generateLayoutParams(lp: LayoutParams!)
open Int	getGapStrategy() Returns the current gap handling strategy for StaggeredGridLayoutManager.
open Int	getOrientation()
open Boolean	getReverseLayout() Returns whether views are laid out in reverse order or not.
open Int	getSpanCount() Returns the number of spans laid out by StaggeredGridLayoutManager.
open Unit	invalidateSpanAssignments() For consistency, StaggeredGridLayoutManager keeps a mapping between spans and items.
open Boolean	isAutoMeasureEnabled()
open Unit	offsetChildrenHorizontal(dx: Int)
open Unit	offsetChildrenVertical(dy: Int)
open Unit	onAdapterChanged(@Nullable oldAdapter: RecyclerView.Adapter<RecyclerView.ViewHolder!>?, @Nullable newAdapter: RecyclerView.Adapter<RecyclerView.ViewHolder!>?)
open Unit	onDetachedFromWindow(view: RecyclerView!, recycler: RecyclerView.Recycler!)
open View?	onFocusSearchFailed(focused: View, direction: Int, recycler: RecyclerView.Recycler, state: RecyclerView.State)
open Unit	onInitializeAccessibilityEvent(event: AccessibilityEvent)
open Unit	onItemsAdded(recyclerView: RecyclerView, positionStart: Int, itemCount: Int)
open Unit	onItemsChanged(recyclerView: RecyclerView)
open Unit	onItemsMoved(recyclerView: RecyclerView, from: Int, to: Int, itemCount: Int)
open Unit	onItemsRemoved(recyclerView: RecyclerView, positionStart: Int, itemCount: Int)
open Unit	onItemsUpdated(recyclerView: RecyclerView, positionStart: Int, itemCount: Int, payload: Any?)
open Unit	onLayoutChildren(recycler: RecyclerView.Recycler!, state: RecyclerView.State!)
open Unit	onLayoutCompleted(state: RecyclerView.State!)
open Unit	onRestoreInstanceState(