RecyclerView.OnScrollListener

Added in 1.0.0

Kotlin |Java

abstract class RecyclerView.OnScrollListener

An OnScrollListener can be added to a RecyclerView to receive messages when a scrolling event has occurred on that RecyclerView.

See also
`addOnScrollListener`
`clearOnChildAttachStateChangeListeners`

Summary

Public constructors
`OnScrollListener()`

Public functions
`Unit`	`onScrollStateChanged(recyclerView: RecyclerView, newState: Int)` Callback method to be invoked when RecyclerView's scroll state changes.
`Unit`	`onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int)` Callback method to be invoked when the RecyclerView has been scrolled.

Added in 1.0.0

OnScrollListener()

Added in 1.0.0

fun onScrollStateChanged(recyclerView: RecyclerView, newState: Int): Unit

Callback method to be invoked when RecyclerView's scroll state changes.

Parameters
`recyclerView: RecyclerView`	The RecyclerView whose scroll state has changed.
`newState: Int`	The updated scroll state. One of `SCROLL_STATE_IDLE`, `SCROLL_STATE_DRAGGING` or `SCROLL_STATE_SETTLING`.

Added in 1.0.0

fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int): Unit

Callback method to be invoked when the RecyclerView has been scrolled. This will be called after the scroll has completed.

This callback will also be called if visible item range changes after a layout calculation. In that case, dx and dy will be 0.

Parameters
`recyclerView: RecyclerView`	The RecyclerView which scrolled.
`dx: Int`	The amount of horizontal scroll.
`dy: Int`	The amount of vertical scroll.