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NestedScrollingChildHelper

public class NestedScrollingChildHelper
extends Object

java.lang.Object
↳	android.support.v4.view.NestedScrollingChildHelper

Helper class for implementing nested scrolling child views compatible with Android platform versions earlier than Android 5.0 Lollipop (API 21).

View subclasses should instantiate a final instance of this class as a field at construction. For each View method that has a matching method signature in this class, delegate the operation to the helper instance in an overriden method implementation. This implements the standard framework policy for nested scrolling.

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 constructors
`NestedScrollingChildHelper(View view)` Construct a new helper for a given view.

Public methods
`boolean`	`dispatchNestedFling(float velocityX, float velocityY, boolean consumed)` Dispatch a nested fling operation to the current nested scrolling parent.
`boolean`	`dispatchNestedPreFling(float velocityX, float velocityY)` Dispatch a nested pre-fling operation to the current nested scrolling parent.
`boolean`	`dispatchNestedPreScroll(int dx, int dy, int[] consumed, int[] offsetInWindow)` Dispatch one step of a nested pre-scrolling operation to the current nested scrolling parent.
`boolean`	`dispatchNestedScroll(int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed, int[] offsetInWindow)` Dispatch one step of a nested scrolling operation to the current nested scrolling parent.
`boolean`	`hasNestedScrollingParent()` Check if this view has a nested scrolling parent view currently receiving events for a nested scroll in progress.
`boolean`	`isNestedScrollingEnabled()` Check if nested scrolling is enabled for this view.
`void`	`onDetachedFromWindow()` View subclasses should always call this method on their `NestedScrollingChildHelper` when detached from a window.
`void`	`onStopNestedScroll(View child)` Called when a nested scrolling child stops its current nested scroll operation.
`void`	`setNestedScrollingEnabled(boolean enabled)` Enable nested scrolling.
`boolean`	`startNestedScroll(int axes)` Start a new nested scroll for this view.
`void`	`stopNestedScroll()` Stop a nested scroll in progress.

Inherited methods

From class


  
    java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public constructors

NestedScrollingChildHelper

NestedScrollingChildHelper (View view)

Construct a new helper for a given view.

Parameters
`view`	`View`