public static interface RecyclerView.OnItemTouchListener
This can be useful for applications that wish to implement various forms of gestural manipulation of item views within the RecyclerView. OnItemTouchListeners may intercept a touch interaction already in progress even if the RecyclerView is already handling that gesture stream itself for the purposes of scrolling.
RecyclerView.SimpleOnItemTouchListener
Modifier and Type | Method and Description |
---|---|
boolean |
onInterceptTouchEvent(RecyclerView rv,
MotionEvent e)
Silently observe and/or take over touch events sent to the RecyclerView
before they are handled by either the RecyclerView itself or its child views.
|
void |
onRequestDisallowInterceptTouchEvent(boolean disallowIntercept)
Called when a child of RecyclerView does not want RecyclerView and its ancestors to
intercept touch events with
ViewGroup.onInterceptTouchEvent(MotionEvent) . |
void |
onTouchEvent(RecyclerView rv,
MotionEvent e)
Process a touch event as part of a gesture that was claimed by returning true from
a previous call to
onInterceptTouchEvent(android.support.v7.widget.RecyclerView, android.view.MotionEvent) . |
boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e)
The onInterceptTouchEvent methods of each attached OnItemTouchListener will be run in the order in which each listener was added, before any other touch processing by the RecyclerView itself or child views occurs.
e
- MotionEvent describing the touch event. All coordinates are in
the RecyclerView's coordinate system.void onTouchEvent(RecyclerView rv, MotionEvent e)
onInterceptTouchEvent(android.support.v7.widget.RecyclerView, android.view.MotionEvent)
.e
- MotionEvent describing the touch event. All coordinates are in
the RecyclerView's coordinate system.void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept)
ViewGroup.onInterceptTouchEvent(MotionEvent)
.disallowIntercept
- True if the child does not want the parent to
intercept touch events.ViewParent.requestDisallowInterceptTouchEvent(boolean)