NestedScrollingChild

Kotlin |Java

interface NestedScrollingChild

androidx.core.view.NestedScrollingChild

Known Direct Subclasses

NestedScrollingChild2, SwipeRefreshLayout

NestedScrollingChild2	This interface should be implemented by `View` subclasses that wish to support dispatching nested scrolling operations to a cooperating parent `ViewGroup`.
SwipeRefreshLayout	The SwipeRefreshLayout should be used whenever the user can refresh the contents of a view via a vertical swipe gesture.

Known Indirect Subclasses

BaseGridView, BaseGridView, HorizontalGridView, HorizontalGridView, NestedScrollView, NestedScrollingChild3, RecyclerView, RecyclerView, SwipeRefreshLayout, SwipeRefreshLayout, VerticalGridView, VerticalGridView, and 2 others.

BaseGridView	An abstract base class for vertically and horizontally scrolling lists.
BaseGridView	An abstract base class for vertically and horizontally scrolling lists.
HorizontalGridView	A `android.view.ViewGroup` that shows items in a horizontal scrolling list.
HorizontalGridView	A `android.view.ViewGroup` that shows items in a horizontal scrolling list.
NestedScrollView	NestedScrollView is just like `android.widget.ScrollView`, but it supports acting as both a nested scrolling parent and child on both new and old versions of Android.
NestedScrollingChild3	This interface should be implemented by `View` subclasses that wish to support dispatching nested scrolling operations to a cooperating parent `ViewGroup`.
RecyclerView	A flexible view for providing a limited window into a large data set.
RecyclerView	A flexible view for providing a limited window into a large data set.
SwipeRefreshLayout	The SwipeRefreshLayout should be used whenever the user can refresh the contents of a view via a vertical swipe gesture.
SwipeRefreshLayout	The SwipeRefreshLayout should be used whenever the user can refresh the contents of a view via a vertical swipe gesture.
VerticalGridView	A `android.view.ViewGroup` that shows items in a vertically scrolling list.
VerticalGridView	A `android.view.ViewGroup` that shows items in a vertically scrolling list.
WearableRecyclerView	Wearable specific implementation of the `RecyclerView` enabling circular scrolling} and semi-circular layouts.
WearableRecyclerView	Wearable specific implementation of the `RecyclerView` enabling circular scrolling} and semi-circular layouts.

This interface should be implemented by View subclasses that wish to support dispatching nested scrolling operations to a cooperating parent ViewGroup.

Classes implementing this interface should create a final instance of a NestedScrollingChildHelper as a field and delegate any View methods to the NestedScrollingChildHelper methods of the same signature.

Views invoking nested scrolling functionality should always do so from the relevant ViewCompat, ViewGroupCompat or ViewParentCompat compatibility shim static methods. This ensures interoperability with nested scrolling views on Android 5.0 Lollipop and newer.

Summary

Public methods
abstract Boolean	`dispatchNestedFling(velocityX: Float, velocityY: Float, consumed: Boolean)` Dispatch a fling to a nested scrolling parent.
abstract Boolean	`dispatchNestedPreFling(velocityX: Float, velocityY: Float)` Dispatch a fling to a nested scrolling parent before it is processed by this view.
abstract Boolean	`dispatchNestedPreScroll(dx: Int, dy: Int, @Nullable consumed: IntArray?, @Nullable offsetInWindow: IntArray?)` Dispatch one step of a nested scroll in progress before this view consumes any portion of it.
abstract Boolean	`dispatchNestedScroll(dxConsumed: Int, dyConsumed: Int, dxUnconsumed: Int, dyUnconsumed: Int, @Nullable offsetInWindow: IntArray?)` Dispatch one step of a nested scroll in progress.
abstract Boolean	`hasNestedScrollingParent()` Returns true if this view has a nested scrolling parent.
abstract Boolean	`isNestedScrollingEnabled()` Returns true if nested scrolling is enabled for this view.
abstract Unit	`setNestedScrollingEnabled(`