GestureDetector.IOnGestureListener.OnScroll Method
Definition
Important
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Notified when a scroll occurs with the initial on down MotionEvent
and the
current move MotionEvent
.
[Android.Runtime.Register("onScroll", "(Landroid/view/MotionEvent;Landroid/view/MotionEvent;FF)Z", "GetOnScroll_Landroid_view_MotionEvent_Landroid_view_MotionEvent_FFHandler:Android.Views.GestureDetector/IOnGestureListenerInvoker, Mono.Android, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null")]
public bool OnScroll (Android.Views.MotionEvent? e1, Android.Views.MotionEvent e2, float distanceX, float distanceY);
[<Android.Runtime.Register("onScroll", "(Landroid/view/MotionEvent;Landroid/view/MotionEvent;FF)Z", "GetOnScroll_Landroid_view_MotionEvent_Landroid_view_MotionEvent_FFHandler:Android.Views.GestureDetector/IOnGestureListenerInvoker, Mono.Android, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null")>]
abstract member OnScroll : Android.Views.MotionEvent * Android.Views.MotionEvent * single * single -> bool
Parameters
- e1
- MotionEvent
The first down motion event that started the scrolling. A null
event
indicates an incomplete event stream or error state.
- e2
- MotionEvent
The move motion event that triggered the current onScroll.
- distanceX
- Single
The distance along the X axis that has been scrolled since the last
call to onScroll. This is NOT the distance between e1
and e2
.
- distanceY
- Single
The distance along the Y axis that has been scrolled since the last
call to onScroll. This is NOT the distance between e1
and e2
.
Returns
true if the event is consumed, else false
- Attributes
Remarks
Notified when a scroll occurs with the initial on down MotionEvent
and the current move MotionEvent
. The distance in x and y is also supplied for convenience.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.