IViewParent.OnNestedPreFling(View, Single, Single) Method
Definition
Important
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React to a nested fling before the target view consumes it.
[Android.Runtime.Register("onNestedPreFling", "(Landroid/view/View;FF)Z", "GetOnNestedPreFling_Landroid_view_View_FFHandler:Android.Views.IViewParentInvoker, Mono.Android, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null")]
public bool OnNestedPreFling (Android.Views.View target, float velocityX, float velocityY);[<Android.Runtime.Register("onNestedPreFling", "(Landroid/view/View;FF)Z", "GetOnNestedPreFling_Landroid_view_View_FFHandler:Android.Views.IViewParentInvoker, Mono.Android, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null")>]
abstract member OnNestedPreFling : Android.Views.View * single * single -> boolParameters
- target
- View
View that initiated the nested scroll
- velocityX
- Single
Horizontal velocity in pixels per second
- velocityY
- Single
Vertical velocity in pixels per second
Returns
true if this parent consumed the fling ahead of the target view
- Attributes
Remarks
React to a nested fling before the target view consumes it.
This method siginfies that a nested scrolling child has detected a fling with the given velocity along each axis. Generally this means that a touch scroll has ended with a VelocityTracker velocity in the direction of scrolling that meets or exceeds the ViewConfiguration#getScaledMinimumFlingVelocity() minimum fling velocity along a scrollable axis.
If a nested scrolling parent is consuming motion as part of a #onNestedPreScroll(View, int, int, int[]) pre-scroll, it may be appropriate for it to also consume the pre-fling to complete that same motion. By returning true from this method, the parent indicates that the child should not fling its own internal content as well.
Java documentation for android.view.ViewParent.onNestedPreFling(android.view.View, 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.