onNestedScroll
React to a nested scroll in progress.
This method will be called when the ViewParent's current nested scrolling child view dispatches a nested scroll event. To receive calls to this method the ViewParent must have previously returned true for a call to onStartNestedScroll.
Both the consumed and unconsumed portions of the scroll distance are reported to the ViewParent. An implementation may choose to use the consumed portion to match or chase scroll position of multiple child elements, for example. The unconsumed portion may be used to allow continuous dragging of multiple scrolling or draggable elements, such as scrolling a list within a vertical drawer where the drawer begins dragging once the edge of inner scrolling content is reached.
This method is called when a nested scrolling child invokes dispatchNestedScroll} or one of methods it overloads.
An implementation must report how many pixels of the the x and y scroll distances were consumed by this nested scrolling parent by adding the consumed distances to the consumed parameter. If this View also implements NestedScrollingChild3, consumed should also be passed up to it's nested scrolling parent so that the parent may also add any scroll distance it consumes. Index 0 corresponds to dx and index 1 corresponds to dy.
Parameters
The descendant view controlling the nested scroll
Horizontal scroll distance in pixels already consumed by target
Vertical scroll distance in pixels already consumed by target
Horizontal scroll distance in pixels not consumed by target
Vertical scroll distance in pixels not consumed by target
the type of input which cause this scroll event
Output. Upon this method returning, will contain the scroll distances consumed by this nested scrolling parent and the scroll distances consumed by any other parent up the view hierarchy
See also
React to a nested scroll in progress.
This method will be called when the ViewParent's current nested scrolling child view dispatches a nested scroll event. To receive calls to this method the ViewParent must have previously returned true for a call to onStartNestedScroll.
Both the consumed and unconsumed portions of the scroll distance are reported to the ViewParent. An implementation may choose to use the consumed portion to match or chase scroll position of multiple child elements, for example. The unconsumed portion may be used to allow continuous dragging of multiple scrolling or draggable elements, such as scrolling a list within a vertical drawer where the drawer begins dragging once the edge of inner scrolling content is reached.
Parameters
The descendent view controlling the nested scroll
Horizontal scroll distance in pixels already consumed by target
Vertical scroll distance in pixels already consumed by target
Horizontal scroll distance in pixels not consumed by target
Vertical scroll distance in pixels not consumed by target
the type of input which cause this scroll event