added in version 22.1.0
belongs to Maven artifact com.android.support:recyclerview-v7:28.0.0-alpha1

Summary: Constants | Fields | Methods | Inherited Methods | [Expand All]

OrientationHelper

This package is part of the Android support library which is no longer maintained. The support library has been superseded by AndroidX which is part of Jetpack. We recommend using the AndroidX libraries in all new projects. You should also consider migrating existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library class mappings.

public abstract class OrientationHelper
extends Object

java.lang.Object
↳	android.support.v7.widget.OrientationHelper

---

Helper class for LayoutManagers to abstract measurements depending on the View's orientation.

It is developed to easily support vertical and horizontal orientations in a LayoutManager but can also be used to abstract calls around view bounds and child measurements with margins and decorations.

See also:

• createHorizontalHelper(RecyclerView.LayoutManager)
• createVerticalHelper(RecyclerView.LayoutManager)

Summary

Constants
int	HORIZONTAL
int	VERTICAL

Fields
protected final RecyclerView.LayoutManager	mLayoutManager

Public methods
static OrientationHelper	createHorizontalHelper(RecyclerView.LayoutManager layoutManager) Creates a horizontal OrientationHelper for the given LayoutManager.
static OrientationHelper	createOrientationHelper(RecyclerView.LayoutManager layoutManager, int orientation) Creates an OrientationHelper for the given LayoutManager and orientation.
static OrientationHelper	createVerticalHelper(RecyclerView.LayoutManager layoutManager) Creates a vertical OrientationHelper for the given LayoutManager.
abstract int	getDecoratedEnd(View view) Returns the end of the view including its decoration and margin.
abstract int	getDecoratedMeasurement(View view) Returns the space occupied by this View in the current orientation including decorations and margins.
abstract int	getDecoratedMeasurementInOther(View view) Returns the space occupied by this View in the perpendicular orientation including decorations and margins.
abstract int	getDecoratedStart(View view) Returns the start of the view including its decoration and margin.
abstract int	getEnd() Returns the end position of the layout without taking padding into account.
abstract int	getEndAfterPadding() Returns the end position of the layout after the end padding is removed.
abstract int	getEndPadding() Returns the padding at the end of the layout.
RecyclerView.LayoutManager	getLayoutManager() Returns the LayoutManager that is associated with this OrientationHelper.
abstract int	getMode() Returns the MeasureSpec mode for the current orientation from the LayoutManager.
abstract int	getModeInOther() Returns the MeasureSpec mode for the perpendicular orientation from the LayoutManager.
abstract int	getStartAfterPadding() Returns the start position of the layout after the start padding is added.
abstract int	getTotalSpace() Returns the total space to layout.
int	getTotalSpaceChange() Returns the layout space change between the previous layout pass and current layout pass.
abstract int	getTransformedEndWithDecoration(View view) Returns the end of the View after its matrix transformations are applied to its layout position.
abstract int	getTransformedStartWithDecoration(View view) Returns the start of the View after its matrix transformations are applied to its layout position.
abstract void	offsetChild(View view, int offset) Offsets the child in this orientatio