NSLayoutAttribute Enum

Definition

Namespace:

UIKit

Assembly:

Xamarin.iOS.dll

An enumeration of attributes for use with constraint-based layouts.

[ObjCRuntime.Unavailable(ObjCRuntime.PlatformName.WatchOS, ObjCRuntime.PlatformArchitecture.All, null)]
public enum NSLayoutAttribute

type NSLayoutAttribute = 

Inheritance

Enum

NSLayoutAttribute

Attributes

UnavailableAttribute

Fields

Name	Value	Description
NoAttribute	0	Indicates no attribute.
Left	1	The left-most X value of the element.
Right	2	The right-most X value of the element.
Top	3	The top-most Y value of the element.
Bottom	4	The bottom of the element.
Leading	5	In locales with right-to-left text, this value is equal to Left. In locales such as Hebrew or Arabic, equal to Right.
Trailing	6	In locales with right-to-left text, this value is equal to Right. In locales such as Hebrew or Arabic, equal to Left.
Width	7	The size of the element along the X axis.
Height	8	The size of the element along the Y axis.
CenterX	9	The left-to-right midpoint of the element.
CenterY	10	The top-to-bottom midpoint of the element.
Baseline	11	The line on which text without descenders sits.
LastBaseline	11	The element's last baseline.
FirstBaseline	12	The element's first baseline.
LeftMargin	13	The left margin of the element.
RightMargin	14	The right margin of the element.
TopMargin	15	The top margin of the element.
BottomMargin	16	The margin from the bottom of the element.
LeadingMargin	17	The leading edge of the element's margin.
TrailingMargin	18	The trailing margin of the element.
CenterXWithinMargins	19	The X-center of the region bounded by the element's margins.
CenterYWithinMargins	20	The Y-center of the region bounded by the element's margins.

Remarks

Values used to specify particular constraint attributes in constraint-based layouts. These values are primarily used by methods in the NSLayoutConstraint class.

See also

• Media Notes