RecyclerView.OnScrollListener


public abstract class RecyclerView.OnScrollListener


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

Summary

Public constructors

Public methods

void
onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState)

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

void
onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy)

Callback method to be invoked when the RecyclerView has been scrolled.

Public constructors

OnScrollListener

Added in 1.0.0
public OnScrollListener()

Public methods

onScrollStateChanged

Added in 1.0.0
public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState)

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

Parameters
@NonNull RecyclerView recyclerView

The RecyclerView whose scroll state has changed.

int newState

The updated scroll state. One of SCROLL_STATE_IDLE, SCROLL_STATE_DRAGGING or SCROLL_STATE_SETTLING.

onScrolled

Added in 1.0.0
public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy)

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
@NonNull RecyclerView recyclerView

The RecyclerView which scrolled.

int dx

The amount of horizontal scroll.

int dy

The amount of vertical scroll.