LayoutChain

public class LayoutChain

视图链式布局类。如果约束条件完全相同，会自动更新约束而不是重新添加。另外，默认布局方式使用LTR，如果需要RTL布局，可通过autoLayoutRTL统一启用

Accessor


                    
                    
                    view

布局视图

Declaration

Swift

public private(set) weak var view: UIView? { get }

Lifecycle

init(view:)
构造方法
Declaration
Swift

public required init(view: UIView?)

Install


                    
                    
                    remake()

Undocumented

Declaration

Swift

@discardableResult
public func remake() -> Self


                    
                    
                    autoScale(_:)

Undocumented

Declaration

Swift

@discardableResult
public func autoScale(_ autoScale: Bool) -> Self

Compression


                    
                    
                    compression(horizontal:)

Undocumented

Declaration

Swift

@discardableResult
public func compression(horizontal priority: UILayoutPriority) -> Self


                    
                    
                    compression(vertical:)

Undocumented

Declaration

Swift

@discardableResult
public func compression(vertical priority: UILayoutPriority) -> Self


                    
                    
                    hugging(horizontal:)

Undocumented

Declaration

Swift

@discardableResult
public func hugging(horizontal priority: UILayoutPriority) -> Self


                    
                    
                    hugging(vertical:)

Undocumented

Declaration

Swift

@discardableResult
public func hugging(vertical priority: UILayoutPriority) -> Self

Collapse


                    
                    
                    isCollapsed(_:)

Undocumented

Declaration

Swift

@discardableResult
public func isCollapsed(_ isCollapsed: Bool) -> Self


                    
                    
                    autoCollapse(_:)

Undocumented

Declaration

Swift

@discardableResult
public func autoCollapse(_ autoCollapse: Bool) -> Self


                    
                    
                    hiddenCollapse(_:)

Undocumented

Declaration

Swift

@discardableResult
public func hiddenCollapse(_ hiddenCollapse: Bool) -> Self

Axis


                    
                    
                    center(_:)

Undocumented

Declaration

Swift

@discardableResult
public func center(_ offset: CGPoint = .zero) -> Self


                    
                    
                    centerX(_:)

Undocumented

Declaration

Swift

@discardableResult
public func centerX(_ offset: CGFloat = .zero) -> Self


                    
                    
                    centerY(_:)

Undocumented

Declaration

Swift

@discardableResult
public func centerY(_ offset: CGFloat = .zero) -> Self


                    
                    
                    center(toView:)

Undocumented

Declaration

Swift

@discardableResult
public func center(toView view: Any) -> Self


                    
                    
                    centerX(toView:offset:)

Undocumented

Declaration

Swift

@discardableResult
public func centerX(toView view: Any, offset: CGFloat = 0) -> Self


                    
                    
                    centerY(toView:offset:)

Undocumented

Declaration

Swift

@discardableResult
public func centerY(toView view: Any, offset: CGFloat = 0) -> Self


                    
                    
                    centerX(toView:multiplier:)

Undocumented

Declaration

Swift

@discardableResult
public func centerX(toView view: Any, multiplier: CGFloat) -> Self


                    
                    
                    centerY(toView:multiplier:)

Undocumented

Declaration

Swift

@discardableResult
public func centerY(toView view: Any, multiplier: CGFloat) -> Self

Edge


                    
                    
                    edges(_:)

Undocumented

Declaration

Swift

@discardableResult
public func edges(_ insets: UIEdgeInsets = UIEdgeInsets.zero) -> Self


                    
                    
                    edges(_:excludingEdge:)

Undocumented

Declaration

Swift

@discardableResult
public func edges(_ insets: UIEdgeInsets = UIEdgeInsets.zero, excludingEdge edge: NSLayoutConstraint.Attribute) -> Self


                    
                    
                    horizontal(_:)

Undocumented

Declaration

Swift

@discardableResult
public func horizontal(_ inset: CGFloat = .zero) -> Self


                    
                    
                    vertical(_:)

Undocumented

Declaration

Swift

@discardableResult
public func vertical(_ inset: CGFloat = .zero) -> Self


                    
                    
                    top(_:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func top(_ inset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    bottom(_:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func bottom(_ inset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    left(_:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func left(_ inset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    right(_:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func right(_ inset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    top(toView:offset:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func top(toView view: Any, offset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    bottom(toView:offset:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func bottom(toView view: Any, offset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    left(toView:offset:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func left(toView view: Any, offset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    right(toView:offset:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func right(toView view: Any, offset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    horizontal(toView:)

Undocumented

Declaration

Swift

@discardableResult
public func horizontal(toView view: Any) -> Self


                    
                    
                    vertical(toView:)

Undocumented

Declaration

Swift

@discardableResult
public func vertical(toView view: Any) -> Self


                    
                    
                    top(toViewBottom:offset:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func top(toViewBottom view: Any, offset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    bottom(toViewTop:offset:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func bottom(toViewTop view: Any, offset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    left(toViewRight:offset:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func left(toViewRight view: Any, offset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    right(toViewLeft:offset:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func right(toViewLeft view: Any, offset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self

SafeArea


                    
                    
                    center(toSafeArea:)

Undocumented

Declaration

Swift

@discardableResult
public func center(toSafeArea offset: CGPoint) -> Self


                    
                    
                    centerX(toSafeArea:)

Undocumented

Declaration

Swift

@discardableResult
public func centerX(toSafeArea offset: CGFloat) -> Self


                    
                    
                    centerY(toSafeArea:)

Undocumented

Declaration

Swift

@discardableResult
public func centerY(toSafeArea offset: CGFloat) -> Self


                    
                    
                    edges(toSafeArea:)

Undocumented

Declaration

Swift

@discardableResult
public func edges(toSafeArea insets: UIEdgeInsets) -> Self


                    
                    
                    edges(toSafeArea:excludingEdge:)

Undocumented

Declaration

Swift

@discardableResult
public func edges(toSafeArea insets: UIEdgeInsets, excludingEdge edge: NSLayoutConstraint.Attribute) -> Self


                    
                    
                    horizontal(toSafeArea:)

Undocumented

Declaration

Swift

@discardableResult
public func horizontal(toSafeArea inset: CGFloat) -> Self


                    
                    
                    vertical(toSafeArea:)

Undocumented

Declaration

Swift

@discardableResult
public func vertical(toSafeArea inset: CGFloat) -> Self


                    
                    
                    top(toSafeArea:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func top(toSafeArea inset: CGFloat, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    bottom(toSafeArea:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func bottom(toSafeArea inset: CGFloat, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    left(toSafeArea:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func left(toSafeArea inset: CGFloat, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    right(toSafeArea:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func right(toSafeArea inset: CGFloat, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self

Dimension


                    
                    
                    size(_:)

Undocumented

Declaration

Swift

@discardableResult
public func size(_ size: CGSize) -> Self


                    
                    
                    size(width:height:)

Undocumented

Declaration

Swift

@discardableResult
public func size(width: CGFloat, height: CGFloat) -> Self


                    
                    
                    width(_:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func width(_ width: CGFloat, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    height(_:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func height(_ height: CGFloat, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    width(toHeight:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func width(toHeight multiplier: CGFloat, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    height(toWidth:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func height(toWidth multiplier: CGFloat, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    size(toView:)

Undocumented

Declaration

Swift

@discardableResult
public func size(toView view: Any) -> Self


                    
                    
                    width(toView:offset:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func width(toView view: Any, offset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    height(toView:offset:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func height(toView view: Any, offset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    width(toView:multiplier:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func width(toView view: Any, multiplier: CGFloat, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    height(toView:multiplier:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func height(toView view: Any, multiplier: CGFloat, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self

Attribute


                    
                    
                    attribute(_:toAttribute:ofView:offset:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func attribute(_ attribute: NSLayoutConstraint.Attribute, toAttribute: NSLayoutConstraint.Attribute, ofView view: Any?, offset: CGFloat = 0, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self


                    
                    
                    attribute(_:toAttribute:ofView:multiplier:offset:relation:priority:)

Undocumented

Declaration

Swift

@discardableResult
public func attribute(_ attribute: NSLayoutConstraint.Attribute, toAttribute: NSLayoutConstraint.Attribute, ofView view: Any?, multiplier: CGFloat, offset: CGFloat = .zero, relation: NSLayoutConstraint.Relation = .equal, priority: UILayoutPriority = .required) -> Self

Subviews


                    
                    
                    subviews(_:)

Undocumented

Declaration

Swift

@discardableResult
public func subviews(_ closure: (_ make: LayoutChain) -> Void) -> Self


                    
                    
                    subviews(along:itemSpacing:leadSpacing:tailSpacing:itemLength:equalLength:)

Undocumented

Declaration

Swift

@discardableResult
public func subviews(along axis: NSLayoutConstraint.Axis, itemSpacing: CGFloat, leadSpacing: CGFloat? = nil, tailSpacing: CGFloat? = nil, itemLength: CGFloat? = nil, equalLength: Bool = false) -> Self


                    
                    
                    subviews(along:itemLength:leadSpacing:tailSpacing:)

Undocumented

Declaration

Swift

@discardableResult
public func subviews(along axis: NSLayoutConstraint.Axis, itemLength: CGFloat, leadSpacing: CGFloat, tailSpacing: CGFloat) -> Self


                    
                    
                    subviews(along:alignCenter:itemWidth:leftSpacing:rightSpacing:)

Undocumented

Declaration

Swift

@discardableResult
public func subviews(along axis: NSLayoutConstraint.Axis, alignCenter: Bool = false, itemWidth: CGFloat? = nil, leftSpacing: CGFloat? = nil, rightSpacing: CGFloat? = nil) -> Self

Offset


                    
                    
                    relative()

Undocumented

Declaration

Swift

@discardableResult
public func relative() -> Self


                    
                    
                    fixed()

Undocumented

Declaration

Swift

@discardableResult
public func fixed() -> Self


                    
                    
                    offset(_:)

Undocumented

Declaration

Swift

@discardableResult
public func offset(_ offset: CGFloat) -> Self


                    
                    
                    constant(_:)

Undocumented

Declaration

Swift

@discardableResult
public func constant(_ constant: CGFloat) -> Self


                    
                    
                    priority(_:)

Undocumented

Declaration

Swift

@discardableResult
public func priority(_ priority: UILayoutPriority) -> Self


                    
                    
                    collapse(_:)

Undocumented

Declaration

Swift

@discardableResult
public func collapse(_ offset: CGFloat? = nil) -> Self


                    
                    
                    original(_:)

Undocumented

Declaration

Swift

@discardableResult
public func original(_ offset: CGFloat) -> Self


                    
                    
                    collapseActive(_:)

Undocumented

Declaration

Swift

@discardableResult
public func collapseActive(_ active: Bool? = nil) -> Self


                    
                    
                    collapsePriority(_:)

Undocumented

Declaration

Swift

@discardableResult
public func collapsePriority(_ priority: UILayoutPriority? = nil) -> Self


                    
                    
                    originalPriority(_:)

Undocumented

Declaration

Swift

@discardableResult
public func originalPriority(_ priority: UILayoutPriority) -> Self


                    
                    
                    identifier(_:)

Undocumented

Declaration

Swift

@discardableResult
public func identifier(_ identifier: String?) -> Self


                    
                    
                    active(_:)

Undocumented

Declaration

Swift

@discardableResult
public func active(_ active: Bool) -> Self


                    
                    
                    remove()

Undocumented

Declaration

Swift

@discardableResult
public func remove() -> Self

Constraint


                    
                    
                    constraints

Undocumented

Declaration

Swift

public var constraints: [NSLayoutConstraint] { get }


                    
                    
                    constraint

Undocumented

Declaration

Swift

public var constraint: NSLayoutConstraint? { get }


                    
                    
                    constraint(_:relation:)

Undocumented

Declaration

Swift

public func constraint(_ attribute: NSLayoutConstraint.Attribute, relation: NSLayoutConstraint.Relation = NSLayoutConstraint.Relation.equal) -> NSLayoutConstraint?


                    
                    
                    constraint(toSafeArea:relation:)

Undocumented

Declaration

Swift

public func constraint(toSafeArea attribute: NSLayoutConstraint.Attribute, relation: NSLayoutConstraint.Relation = NSLayoutConstraint.Relation.equal) -> NSLayoutConstraint?


                    
                    
                    constraint(_:toAttribute:ofView:relation:)

Undocumented

Declaration

Swift

public func constraint(_ attribute: NSLayoutConstraint.Attribute, toAttribute: NSLayoutConstraint.Attribute, ofView view: Any?, relation: NSLayoutConstraint.Relation = NSLayoutConstraint.Relation.equal) -> NSLayoutConstraint?


                    
                    
                    constraint(_:toAttribute:ofView:multiplier:relation:)

Undocumented

Declaration

Swift

public func constraint(_ attribute: NSLayoutConstraint.Attribute, toAttribute: NSLayoutConstraint.Attribute, ofView view: Any?, multiplier: CGFloat, relation: NSLayoutConstraint.Relation = NSLayoutConstraint.Relation.equal) -> NSLayoutConstraint?


                    
                    
                    constraint(identifier:)

Undocumented

Declaration

Swift

public func constraint(identifier: String?) -> NSLayoutConstraint?

Debug


                    
                    
                    layoutKey(_:)

Undocumented

Declaration

Swift

@discardableResult
public func layoutKey(_ layoutKey: String?) -> Self