IViewParent.GetChildVisibleRect(View, Rect, Point) Method

Reference

Definition

Namespace:: Android.Views

Assembly:: Mono.Android.dll

Important

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Compute the visible part of a rectangular region defined in terms of a child view's coordinates.

[Android.Runtime.Register("getChildVisibleRect", "(Landroid/view/View;Landroid/graphics/Rect;Landroid/graphics/Point;)Z", "GetGetChildVisibleRect_Landroid_view_View_Landroid_graphics_Rect_Landroid_graphics_Point_Handler:Android.Views.IViewParentInvoker, Mono.Android, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null")]
public bool GetChildVisibleRect (Android.Views.View? child, Android.Graphics.Rect? r, Android.Graphics.Point? offset);

[<Android.Runtime.Register("getChildVisibleRect", "(Landroid/view/View;Landroid/graphics/Rect;Landroid/graphics/Point;)Z", "GetGetChildVisibleRect_Landroid_view_View_Landroid_graphics_Rect_Landroid_graphics_Point_Handler:Android.Views.IViewParentInvoker, Mono.Android, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null")>]
abstract member GetChildVisibleRect : Android.Views.View * Android.Graphics.Rect * Android.Graphics.Point -> bool

Parameters

child: View

A child View, whose rectangular visible region we want to compute

r: Rect

The input rectangle, defined in the child coordinate system. Will be overwritten to contain the resulting visible rectangle, expressed in global (root) coordinates

offset: Point

The input coordinates of a point, defined in the child coordinate system. As with the r parameter, this will be overwritten to contain the global (root) coordinates of that point. A null value is valid (in case you are not interested in this result)

Returns

Boolean

true if the resulting rectangle is not empty, false otherwise

Attributes: RegisterAttribute

Remarks

Compute the visible part of a rectangular region defined in terms of a child view's coordinates.

Returns the clipped visible part of the rectangle r, defined in the child's local coordinate system. r is modified by this method to contain the result, expressed in the global (root) coordinate system.

The resulting rectangle is always axis aligned. If a rotation is applied to a node in the View hierarchy, the result is the axis-aligned bounding box of the visible rectangle.

Java documentation for android.view.ViewParent.getChildVisibleRect(android.view.View, android.graphics.Rect, android.graphics.Point).

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

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