# Scroller Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) # Scroller *** ** * ** *** Kotlin\|[Java](https://developer.android.com/reference/android/widget/Scroller "View this page in Java") ``` open class Scroller ``` |---|----------------------------------------------------------------------------------------------------| | [kotlin.Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) || | ↳ | [android.widget.Scroller](https://developer.android.com/reference/kotlin/android/widget/Scroller#) | This class encapsulates scrolling. You can use scrollers ([Scroller](https://developer.android.com/reference/kotlin/android/widget/Scroller#)or[OverScroller](https://developer.android.com/reference/kotlin/android/widget/OverScroller)) to collect the data you need to produce a scrolling animation---for example, in response to a fling gesture. Scrollers track scroll offsets for you over time, but they don't automatically apply those positions to your view. It's your responsibility to get and apply new coordinates at a rate that will make the scrolling animation look smooth. Here is a simple example: ```kotlin private Scroller mScroller = new Scroller(context); ... public void zoomIn() { // Revert any animation currently in progress mScroller.forceFinished(true); // Start scrolling by providing a starting point and // the distance to travel mScroller.startScroll(0, 0, 100, 0); // Invalidate to request a redraw invalidate(); } ``` To track the changing positions of the x/y coordinates, use[computeScrollOffset](https://developer.android.com/reference/kotlin/android/widget/Scroller#computeScrollOffset()). The method returns a boolean to indicate whether the scroller is finished. If it isn't, it means that a fling or programmatic pan operation is still in progress. You can use this method to find the current offsets of the x and y coordinates, for example: ```kotlin if (mScroller.computeScrollOffset()) { // Get current x and y positions int currX = mScroller.getCurrX(); int currY = mScroller.getCurrY(); ... } ``` ## Summary | Public constructors || |--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---| | [Scroller](https://developer.android.com/reference/kotlin/android/widget/Scroller#Scroller(android.content.Context))`(`context:` `[Context](https://developer.android.com/reference/kotlin/android/content/Context.html#)!`)` Create a Scroller with the default duration and interpolator. | | [Scroller](https://developer.android.com/reference/kotlin/android/widget/Scroller#Scroller(android.content.Context,%20android.view.animation.Interpolator))`(`context:` `[Context](https://developer.android.com/reference/kotlin/android/content/Context.html#)!`, `interpolator:` `[Interpolator](https://developer.android.com/reference/kotlin/android/view/animation/Interpolator.html#)!`)` Create a Scroller with the specified interpolator. | | [Scroller](https://developer.android.com/reference/kotlin/android/widget/Scroller#Scroller(android.content.Context,%20android.view.animation.Interpolator,%20kotlin.Boolean))`(`context:` `[Context](https://developer.android.com/reference/kotlin/android/content/Context.html#)!`, `interpolator:` `[Interpolator](https://developer.android.com/reference/kotlin/android/view/animation/Interpolator.html#)!`, `flywheel:` `[Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html)`)` Create a Scroller with the specified interpolator. | | Public methods || |----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [abortAnimation](https://developer.android.com/reference/kotlin/android/widget/Scroller#abortAnimation())`()` Stops the animation. | | open[Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | [computeScrollOffset](https://developer.android.com/reference/kotlin/android/widget/Scroller#computeScrollOffset())`()` Call this when you want to know the new location. | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [extendDuration](https://developer.android.com/reference/kotlin/android/widget/Scroller#extendDuration(kotlin.Int))`(`extend:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Extend the scroll animation. | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [fling](https://developer.android.com/reference/kotlin/android/widget/Scroller#fling(kotlin.Int,%20kotlin.Int,%20kotlin.Int,%20kotlin.Int,%20kotlin.Int,%20kotlin.Int,%20kotlin.Int,%20kotlin.Int))`(`startX:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `startY:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `velocityX:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `velocityY:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `minX:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `maxX:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `minY:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `maxY:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Start scrolling based on a fling gesture. | | [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [forceFinished](https://developer.android.com/reference/kotlin/android/widget/Scroller#forceFinished(kotlin.Boolean))`(`finished:` `[Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html)`)` Force the finished field to a particular value. | | open[Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html) | [getCurrVelocity](https://developer.android.com/reference/kotlin/android/widget/Scroller#getCurrVelocity())`()` Returns the current velocity. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getCurrX](https://developer.android.com/reference/kotlin/android/widget/Scroller#getCurrX())`()` Returns the current X offset in the scroll. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getCurrY](https://developer.android.com/reference/kotlin/android/widget/Scroller#getCurrY())`()` Returns the current Y offset in the scroll. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getDuration](https://developer.android.com/reference/kotlin/android/widget/Scroller#getDuration())`()` Returns how long the scroll event will take, in milliseconds. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getFinalX](https://developer.android.com/reference/kotlin/android/widget/Scroller#getFinalX())`()` Returns where the scroll will end. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getFinalY](https://developer.android.com/reference/kotlin/android/widget/Scroller#getFinalY())`()` Returns where the scroll will end. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getStartX](https://developer.android.com/reference/kotlin/android/widget/Scroller#getStartX())`()` Returns the start X offset in the scroll. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getStartY](https://developer.android.com/reference/kotlin/android/widget/Scroller#getStartY())`()` Returns the start Y offset in the scroll. | | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | [isFinished](https://developer.android.com/reference/kotlin/android/widget/Scroller#isFinished())`()` Returns whether the scroller has finished scrolling. | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [setFinalX](https://developer.android.com/reference/kotlin/android/widget/Scroller#setFinalX(kotlin.Int))`(`newX:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Sets the final position (X) for this scroller. | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [setFinalY](https://developer.android.com/reference/kotlin/android/widget/Scroller#setFinalY(kotlin.Int))`(`newY:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Sets the final position (Y) for this scroller. | | [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [setFriction](https://developer.android.com/reference/kotlin/android/widget/Scroller#setFriction(kotlin.Float))`(`friction:` `[Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html)`)` The amount of friction applied to flings. | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [startScroll](https://developer.android.com/reference/kotlin/android/widget/Scroller#startScroll(kotlin.Int,%20kotlin.Int,%20kotlin.Int,%20kotlin.Int))`(`startX:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `startY:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `dx:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `dy:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Start scrolling by providing a starting point and the distance to travel. | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [startScroll](https://developer.android.com/reference/kotlin/android/widget/Scroller#startScroll(kotlin.Int,%20kotlin.Int,%20kotlin.Int,%20kotlin.Int,%20kotlin.Int))`(`startX:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `startY:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `dx:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `dy:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `duration:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Start scrolling by providing a starting point, the distance to travel, and the duration of the scroll. | | open[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [timePassed](https://developer.android.com/reference/kotlin/android/widget/Scroller#timePassed())`()` Returns the time elapsed since the beginning of the scrolling. | ## Public constructors ### Scroller Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` Scroller(context: Context!) ``` Create a Scroller with the default duration and interpolator. ### Scroller Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` Scroller(     context: Context!,     interpolator: Interpolator!) ``` Create a Scroller with the specified interpolator. If the interpolator is null, the default (viscous) interpolator will be used. "Flywheel" behavior will be in effect for apps targeting Honeycomb or newer. ### Scroller Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` Scroller(     context: Context!,     interpolator: Interpolator!,     flywheel: Boolean) ``` Create a Scroller with the specified interpolator. If the interpolator is null, the default (viscous) interpolator will be used. Specify whether or not to support progressive "flywheel" behavior in flinging. ## Public methods ### abortAnimation Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun abortAnimation(): Unit ``` Stops the animation. Contrary to[forceFinished(boolean)](https://developer.android.com/reference/kotlin/android/widget/Scroller#forceFinished(kotlin.Boolean)), aborting the animating cause the scroller to move to the final x and y position **See Also** - [#forceFinished(boolean)](https://developer.android.com/reference/kotlin/android/widget/Scroller#forceFinished(kotlin.Boolean)) ### computeScrollOffset Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun computeScrollOffset(): Boolean ``` Call this when you want to know the new location. If it returns true, the animation is not yet finished. ### extendDuration Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun extendDuration(extend: Int): Unit ``` Extend the scroll animation. This allows a running animation to scroll further and longer, when used with[setFinalX(int)](https://developer.android.com/reference/kotlin/android/widget/Scroller#setFinalX(kotlin.Int))or[setFinalY(int)](https://developer.android.com/reference/kotlin/android/widget/Scroller#setFinalY(kotlin.Int)). | Parameters || |----------|-----------------------------------------------------------------------------------------------------------------------| | `extend` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Additional time to scroll in milliseconds. | **See Also** - [#setFinalX(int)](https://developer.android.com/reference/kotlin/android/widget/Scroller#setFinalX(kotlin.Int)) - [#setFinalY(int)](https://developer.android.com/reference/kotlin/android/widget/Scroller#setFinalY(kotlin.Int)) ### fling Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun fling(     startX: Int,     startY: Int,     velocityX: Int,     velocityY: Int,     minX: Int,     maxX: Int,     minY: Int,     maxY: Int ): Unit ``` Start scrolling based on a fling gesture. The distance travelled will depend on the initial velocity of the fling. | Parameters || |-------------|---------------------------------------------------------------------------------------------------------------------------------------------| | `startX` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Starting point of the scroll (X) | | `startY` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Starting point of the scroll (Y) | | `velocityX` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Initial velocity of the fling (X) measured in pixels per second. | | `velocityY` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Initial velocity of the fling (Y) measured in pixels per second | | `minX` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Minimum X value. The scroller will not scroll past this point. | | `maxX` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Maximum X value. The scroller will not scroll past this point. | | `minY` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Minimum Y value. The scroller will not scroll past this point. | | `maxY` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Maximum Y value. The scroller will not scroll past this point. | ### forceFinished Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun forceFinished(finished: Boolean): Unit ``` Force the finished field to a particular value. | Parameters || |------------|------------------------------------------------------------------------------------------------------------| | `finished` | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html):The new finished value. | ### getCurrVelocity Added in[API level 14](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun getCurrVelocity(): Float ``` Returns the current velocity. | Return || |--------------------------------------------------------------------------------|----------------------------------------------------------------------| | [Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html) | The original velocity less the deceleration. Result may be negative. | ### getCurrX Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun getCurrX(): Int ``` Returns the current X offset in the scroll. | Return || |----------------------------------------------------------------------------|-----------------------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The new X offset as an absolute distance from the origin. | ### getCurrY Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun getCurrY(): Int ``` Returns the current Y offset in the scroll. | Return || |----------------------------------------------------------------------------|-----------------------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The new Y offset as an absolute distance from the origin. | ### getDuration Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun getDuration(): Int ``` Returns how long the scroll event will take, in milliseconds. | Return || |----------------------------------------------------------------------------|---------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The duration of the scroll in milliseconds. | ### getFinalX Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun getFinalX(): Int ``` Returns where the scroll will end. Valid only for "fling" scrolls. | Return || |----------------------------------------------------------------------------|-------------------------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The final X offset as an absolute distance from the origin. | ### getFinalY Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun getFinalY(): Int ``` Returns where the scroll will end. Valid only for "fling" scrolls. | Return || |----------------------------------------------------------------------------|-------------------------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The final Y offset as an absolute distance from the origin. | ### getStartX Added in[API level 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun getStartX(): Int ``` Returns the start X offset in the scroll. | Return || |----------------------------------------------------------------------------|-------------------------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The start X offset as an absolute distance from the origin. | ### getStartY Added in[API level 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun getStartY(): Int ``` Returns the start Y offset in the scroll. | Return || |----------------------------------------------------------------------------|-------------------------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The start Y offset as an absolute distance from the origin. | ### isFinished Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun isFinished(): Boolean ``` Returns whether the scroller has finished scrolling. | Return || |------------------------------------------------------------------------------------|---------------------------------------------------------------| | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | True if the scroller has finished scrolling, false otherwise. | ### setFinalX Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun setFinalX(newX: Int): Unit ``` Sets the final position (X) for this scroller. | Parameters || |--------|--------------------------------------------------------------------------------------------------------------------------------------| | `newX` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):The new X offset as an absolute distance from the origin. | **See Also** - [#extendDuration(int)](https://developer.android.com/reference/kotlin/android/widget/Scroller#extendDuration(kotlin.Int)) - [#setFinalY(int)](https://developer.android.com/reference/kotlin/android/widget/Scroller#setFinalY(kotlin.Int)) ### setFinalY Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun setFinalY(newY: Int): Unit ``` Sets the final position (Y) for this scroller. | Parameters || |--------|--------------------------------------------------------------------------------------------------------------------------------------| | `newY` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):The new Y offset as an absolute distance from the origin. | **See Also** - [#extendDuration(int)](https://developer.android.com/reference/kotlin/android/widget/Scroller#extendDuration(kotlin.Int)) - [#setFinalX(int)](https://developer.android.com/reference/kotlin/android/widget/Scroller#setFinalX(kotlin.Int)) ### setFriction Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun setFriction(friction: Float): Unit ``` The amount of friction applied to flings. The default value is[ViewConfiguration.getScrollFriction](https://developer.android.com/reference/kotlin/android/view/ViewConfiguration.html#getScrollFriction()). | Parameters || |------------|--------------------------------------------------------------------------------------------------------------------------------------------------------| | `friction` | [Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html):A scalar dimension-less value representing the coefficient of friction. | ### startScroll Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun startScroll(     startX: Int,     startY: Int,     dx: Int,     dy: Int ): Unit ``` Start scrolling by providing a starting point and the distance to travel. The scroll will use the default value of 250 milliseconds for the duration. | Parameters || |----------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `startX` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Starting horizontal scroll offset in pixels. Positive numbers will scroll the content to the left. | | `startY` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Starting vertical scroll offset in pixels. Positive numbers will scroll the content up. | | `dx` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Horizontal distance to travel. Positive numbers will scroll the content to the left. | | `dy` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Vertical distance to travel. Positive numbers will scroll the content up. | ### startScroll Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun startScroll(     startX: Int,     startY: Int,     dx: Int,     dy: Int,     duration: Int ): Unit ``` Start scrolling by providing a starting point, the distance to travel, and the duration of the scroll. | Parameters || |------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `startX` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Starting horizontal scroll offset in pixels. Positive numbers will scroll the content to the left. | | `startY` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Starting vertical scroll offset in pixels. Positive numbers will scroll the content up. | | `dx` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Horizontal distance to travel. Positive numbers will scroll the content to the left. | | `dy` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Vertical distance to travel. Positive numbers will scroll the content up. | | `duration` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Duration of the scroll in milliseconds. | ### timePassed Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun timePassed(): Int ``` Returns the time elapsed since the beginning of the scrolling. | Return || |----------------------------------------------------------------------------|-----------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The elapsed time in milliseconds. |