GestureDetector.IOnGestureListener.OnScroll Method

Reference

Definition

Namespace:: Android.Views

Assembly:: Mono.Android.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

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

Boolean

true if the event is consumed, else false

Attributes: RegisterAttribute

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.

Java documentation for android.view.GestureDetector.OnGestureListener.onScroll(android.view.MotionEvent, android.view.MotionEvent, float, float).

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.

Applies to