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

LinearSmoothScroller

public class LinearSmoothScroller
extends RecyclerView.SmoothScroller

java.lang.Object
↳	android.support.v7.widget.RecyclerView.SmoothScroller
	↳	android.support.v7.widget.LinearSmoothScroller

RecyclerView.SmoothScroller implementation which uses a LinearInterpolator until the target position becomes a child of the RecyclerView and then uses a DecelerateInterpolator to slowly approach to target position.

If the RecyclerView.LayoutManager you are using does not implement the RecyclerView.SmoothScroller.ScrollVectorProvider interface, then you must override the computeScrollVectorForPosition(int) method. All the LayoutManagers bundled with the support library implement this interface.

Summary

Constants
`int`	`SNAP_TO_ANY` Decides if the child should be snapped from start or end, depending on where it currently is in relation to its parent.
`int`	`SNAP_TO_END` Align child view's right or bottom with parent view's right or bottom
`int`	`SNAP_TO_START` Align child view's left or top with parent view's left or top

int

SNAP_TO_ANY

Decides if the child should be snapped from start or end, depending on where it currently is in relation to its parent.

int

SNAP_TO_END

Align child view's right or bottom with parent view's right or bottom

int

SNAP_TO_START

Align child view's left or top with parent view's left or top

Fields
`protected final DecelerateInterpolator`	`mDecelerateInterpolator`
`protected int`	`mInterimTargetDx`
`protected int`	`mInterimTargetDy`
`protected final LinearInterpolator`	`mLinearInterpolator`
`protected PointF`	`mTargetVector`

Public constructors
`LinearSmoothScroller(Context context)`

Public methods
`int`	`calculateDtToFit(int viewStart, int viewEnd, int boxStart, int boxEnd, int snapPreference)` Helper method for `calculateDxToMakeVisible(android.view.View, int)` and `calculateDyToMakeVisible(android.view.View, int)`
`int`	`calculateDxToMakeVisible(View view, int snapPreference)` Calculates the horizontal scroll amount necessary to make the given view fully visible inside the RecyclerView.
`int`	`calculateDyToMakeVisible(View view, int snapPreference)` Calculates the vertical scroll amount necessary to make the given view fully visible inside the RecyclerView.

Protected methods
`float`	`calculateSpeedPerPixel(DisplayMetrics displayMetrics)` Calculates the scroll speed.
`int`	`calculateTimeForDeceleration(int dx)` Calculates the time for deceleration so that transition from LinearInterpolator to DecelerateInterpolator looks smooth.
`int`	`calculateTimeForScrolling(int dx)` Calculates the time it should take to scroll the given distance (in pixels)
`int`	`getHorizontalSnapPreference()` When scrolling towards a child view, this method defines whether we should align the left or the right edge of the child with the parent RecyclerView.
`int`	`getVerticalSnapPreference()` When scrolling towards a child view, this method defines whether we should align the top or the bottom edge of the child with the parent RecyclerView.
`void`	`onSeekTargetStep(int dx, int dy, RecyclerView.State state, RecyclerView.SmoothScroller.Action action)` RecyclerView will call this method each time it scrolls until it can find the target position in the layout.
`void`	`onStart()` Called when smooth scroll is started.