NestedScrollingChildHelper

public NestedScrollingChildHelper(@NonNull View view)

Construct a new helper for a given view.

public boolean dispatchNestedFling(float velocityX, float velocityY, boolean consumed)

Dispatch a nested fling operation to the current nested scrolling parent.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild interface method with the same signature to implement the standard policy.

public boolean dispatchNestedPreFling(float velocityX, float velocityY)

Dispatch a nested pre-fling operation to the current nested scrolling parent.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild interface method with the same signature to implement the standard policy.

public boolean dispatchNestedPreScroll(
    int dx,
    int dy,
    @Nullable int[] consumed,
    @Nullable int[] offsetInWindow
)

Dispatch one step of a nested pre-scrolling operation to the current nested scrolling parent.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild interface method with the same signature to implement the standard policy.

public boolean dispatchNestedPreScroll(
    int dx,
    int dy,
    @Nullable int[] consumed,
    @Nullable int[] offsetInWindow,
    int type
)

Dispatch one step of a nested pre-scrolling operation to the current nested scrolling parent.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild2 interface method with the same signature to implement the standard policy.

public boolean dispatchNestedScroll(
    int dxConsumed,
    int dyConsumed,
    int dxUnconsumed,
    int dyUnconsumed,
    @Nullable int[] offsetInWindow
)

Dispatch one step of a nested scrolling operation to the current nested scrolling parent.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild interface method with the same signature to implement the standard policy.

public boolean dispatchNestedScroll(
    int dxConsumed,
    int dyConsumed,
    int dxUnconsumed,
    int dyUnconsumed,
    @Nullable int[] offsetInWindow,
    int type
)

Dispatch one step of a nested scrolling operation to the current nested scrolling parent.

This is a delegate method. Call it from your NestedScrollingChild2 interface method with the same signature to implement the standard policy.

public void dispatchNestedScroll(
    int dxConsumed,
    int dyConsumed,
    int dxUnconsumed,
    int dyUnconsumed,
    @Nullable int[] offsetInWindow,
    int type,
    @Nullable int[] consumed
)

Dispatch one step of a nested scrolling operation to the current nested scrolling parent.

This is a delegate method. Call it from your NestedScrollingChild3 interface method with the same signature to implement the standard policy.

public boolean hasNestedScrollingParent()

Check if this view has a nested scrolling parent view currently receiving events for a nested scroll in progress with the type of touch.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild interface method with the same signature to implement the standard policy.

public boolean hasNestedScrollingParent(int type)

Check if this view has a nested scrolling parent view currently receiving events for a nested scroll in progress with the given type.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild interface method with the same signature to implement the standard policy.

public boolean isNestedScrollingEnabled()

Check if nested scrolling is enabled for this view.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild interface method with the same signature to implement the standard policy.

public void onDetachedFromWindow()

View subclasses should always call this method on their NestedScrollingChildHelper when detached from a window.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild interface method with the same signature to implement the standard policy.

public void onStopNestedScroll(@NonNull View child)

Called when a nested scrolling child stops its current nested scroll operation.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild interface method with the same signature to implement the standard policy.

public void setNestedScrollingEnabled(boolean enabled)

Enable nested scrolling.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild interface method with the same signature to implement the standard policy.

public boolean startNestedScroll(int axes)

Start a new nested scroll for this view.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild interface method with the same signature to implement the standard policy.

public boolean startNestedScroll(int axes, int type)

Start a new nested scroll for this view.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild2 interface method with the same signature to implement the standard policy.

public void stopNestedScroll()

Stop a nested scroll in progress.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild interface method with the same signature to implement the standard policy.

public void stopNestedScroll(int type)

Stop a nested scroll in progress.

This is a delegate method. Call it from your View subclass method/androidx.core.view.NestedScrollingChild2 interface method with the same signature to implement the standard policy.