UIView.AlignmentRectForFrame(CGRect) UIView.AlignmentRectForFrame(CGRect) Method


Returns a customized alignment rectangle for Auto Layout.

[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 6, 0, ObjCRuntime.PlatformArchitecture.All, null)]
public virtual CoreGraphics.CGRect AlignmentRectForFrame (CoreGraphics.CGRect frame);
abstract member AlignmentRectForFrame : CoreGraphics.CGRect -> CoreGraphics.CGRect
override this.AlignmentRectForFrame : CoreGraphics.CGRect -> CoreGraphics.CGRect


CGRect CGRect

A RectangleF for which the alignment rectangle should be calculated.


The alignment rectangle appropriate to the frame.


By overriding this method, application developers can fully customize the alignment rectangle of the UIView.Application developers who override this method must also override the complementary method FrameForAlignmentRect(CGRect). The two methods must provide complementary values.

Auto Layout uses "alignment rectangles" to layout subviews rather than the subviews' Frame. The Frame of a UIView may include visual elements, such as drop-shadows, that are not symmetrical around the UIView's logical center. The "alignment rectangle" for a UIView should be related to its logical content.

By default, the "alignment rectangle" of a UIView is the Frame plus the AlignmentRectInsets. The AlignmentRectForFrame(CGRect) and FrameForAlignmentRect(CGRect) methods can be used to fully customize the alignment rectangle.

Applies to

See also