UIView Extension Reference

RKAL <ADD> (Constraints)


                    
                    
                    rk_alAdd(size:center:edge:baseline:isActive:)

Add several types constraints

Example:

view.rk_alAdd(size: [.width(10), .height(10)], center: [.centerX(), .centerY()])
view.rk_alAdd(center: [.centerX()], edge: [.top(100), .bottom(-90)])

Declaration

Swift

@discardableResult
public func rk_alAdd(
  size: [RKConstraintSize] = [],
  center: [RKConstraintCenter] = [],
  edge: [RKConstraintEdge] = [],
  baseline: [RKConstraintBaseline] = [],
  isActive: Bool = true) -> RKConstraints

Parameters

`size`	RKConstraintSize objects
`center`	RKConstraintCenter objects
`edge`	RKConstraintEdge objects
`baseline`	RKConstraintBaseline objects
`isActive`	true, if constraints must be activated, otherwise false

Return Value

RKConstraints

RKAL <Baseline> (Constraints)


                    
                    
                    rk_alBaseline(_:isActive:)

Add baseline constraints

Example:

view.rk_alBaseline(.firstBaseline(10), .lastBaseline(min: otherView))
view.rk_alBaseline(.firstBaseline(10), .lastBaseline(max: otherView), isActive: false)

Declaration

Swift

@discardableResult
public func rk_alBaseline(_ values: RKConstraintBaseline..., isActive: Bool = true) -> RKConstraints

Parameters

`values`	List RKConstraintBaseline
`isActive`	true, if constraints must be activated, otherwise false

Return Value

RKConstraints


                    
                    
                    rk_alBaseline(with:isActive:)

Add baseline constraints

Example:

view.rk_alBaseline(with: [.firstBaseline(10), .lastBaseline(min: otherView)])
view.rk_alBaseline(with: [.firstBaseline(10), .lastBaseline(max: otherView)], isActive: false)

Declaration

Swift

@discardableResult
func rk_alBaseline(with values: [RKConstraintBaseline], isActive: Bool = true) -> RKConstraints

Parameters

`values`	List RKConstraintBaseline
`isActive`	true, if constraints must be activated, otherwise false

Return Value

RKConstraints

Remove <Baseline>

rk_alRemoveBaselineConstraints()
Remove all baseline constraints
Declaration
Swift

public func rk_alRemoveBaselineConstraints()
rk_alRemoveFirstBaselineConstraints()
Remove all firstBaseline constraints
Declaration
Swift

public func rk_alRemoveFirstBaselineConstraints()
rk_alRemoveLastBaselineConstraints()
Remove all lastBaseline constraints
Declaration
Swift

public func rk_alRemoveLastBaselineConstraints()

RKAL <CENTER> (Constraints)


                    
                    
                    rk_alCenter(_:isActive:)

Add center constraints

Example:

view.rk_alCenter(.centerX(10), .centerY())
view.rk_alCenter(.centerX(10), .centerY(), isActive: false)

Declaration

Swift

@discardableResult
public func rk_alCenter(_ values: RKConstraintCenter..., isActive: Bool = true) -> RKConstraints

Parameters

`values`	List RKConstraintCenter
`isActive`	true, if constraints must be activated, otherwise false

Return Value

RKConstraints


                    
                    
                    rk_alCenter(with:isActive:)

Add center constraints

Example:

view.rk_alCenter(with: [.centerX(10), .centerY()])
view.rk_alCenter(with: [.centerX(10), .centerY()], isActive: false)

Declaration

Swift

@discardableResult
func rk_alCenter(with values: [RKConstraintCenter], isActive: Bool = true) -> RKConstraints

Parameters

`values`	List RKConstraintCenter
`isActive`	true, if constraints must be activated, otherwise false

Return Value

RKConstraints


                    
                    
                    rk_alCenterSuperView(isActive:)

Constraints for centering in superview

Declaration

Swift

@discardableResult
public func rk_alCenterSuperView(isActive: Bool = true) -> RKConstraints

Remove <CENTER>

rk_alRemoveCenterConstraints()
Remove all center constraints
Declaration
Swift

public func rk_alRemoveCenterConstraints()
rk_alRemoveCenterXConstraints()
Remove all centerX constraints
Declaration
Swift

public func rk_alRemoveCenterXConstraints()
rk_alRemoveCenterYConstraints()
Remove all centerY constraints
Declaration
Swift

public func rk_alRemoveCenterYConstraints()

RKAL <EDGES> (Constraints)


                    
                    
                    rk_alEdge(_:isActive:)

Add edge constraints

Example:

view.rk_alEdge(.top(10), .bottom(0))
view.rk_alEdge(.top(10), .bottom(-90), isActive: false)

Declaration

Swift

@discardableResult
public func rk_alEdge(_ values: RKConstraintEdge..., isActive: Bool = true) -> RKConstraints

Parameters

`values`	List RKConstraintEdge
`isActive`	true, if constraints must be activated, otherwise false

Return Value

RKConstraints


                    
                    
                    rk_alEdge(with:isActive:)

Add edge constraints

Example:

view.rk_alEdge(with: [.top(10), .bottom(0)])
view.rk_alEdge(with: [.top(10), .bottom(-90)], isActive: false)

Declaration

Swift

@discardableResult
func rk_alEdge(with values: [RKConstraintEdge], isActive: Bool = true) -> RKConstraints

Parameters

`values`	List RKConstraintEdge
`isActive`	true, if constraints must be activated, otherwise false

Return Value

RKConstraints


                    
                    
                    rk_alEdgeSuperViewBounds(isActive:)

Add edges superview bounds

Declaration

Swift

@discardableResult
public func rk_alEdgeSuperViewBounds(isActive: Bool = true) -> RKConstraints

Parameters


                                isActive

true, if constraints must be activated, otherwise false

Return Value

RKConstraints

Remove <EDGES>

rk_alRemoveAllEdgeConstraints()
Remove all edge constraints
Declaration
Swift

public func rk_alRemoveAllEdgeConstraints()
rk_alRemoveTopConstraints()
Remove all top constraints
Declaration
Swift

public func rk_alRemoveTopConstraints()
rk_alRemoveLeftConstraints()
Remove all left constraints
Declaration
Swift

public func rk_alRemoveLeftConstraints()
rk_alRemoveBottomConstraints()
Remove all bottom constraints
Declaration
Swift

public func rk_alRemoveBottomConstraints()
rk_alRemoveRightConstraints()
Remove all right constraints
Declaration
Swift

public func rk_alRemoveRightConstraints()
rk_alRemoveLeadingConstraints()
Remove all leading constraints
Declaration
Swift

public func rk_alRemoveLeadingConstraints()
rk_alRemoveTrailingConstraints()
Remove all trailing constraints
Declaration
Swift

public func rk_alRemoveTrailingConstraints()

RKAL <SIZE> (Constraints)


                    
                    
                    rk_alSize(_:isActive:)

Add size constraints

Example:

view.rk_alSize(.width(10), .height(min: otherView))
view.rk_alSize(.width(10), .height(max: otherView), isActive: false)

Declaration

Swift

@discardableResult
public func rk_alSize(_ values: RKConstraintSize..., isActive: Bool = true) -> RKConstraints

Parameters

`values`	List RKConstraintSize
`isActive`	true, if constraints must be activated, otherwise false

Return Value

RKConstraints


                    
                    
                    rk_alSize(with:isActive:)

Add size constraints

Example:

view.rk_alSize(with: [.width(10), .height(min: otherView)])
view.rk_alSize(with: [.width(10), .height(max: otherView)], isActive: false)

Declaration

Swift

@discardableResult
func rk_alSize(with values: [RKConstraintSize], isActive: Bool = true) -> RKConstraints

Parameters

`values`	List RKConstraintSize
`isActive`	true, if constraints must be activated, otherwise false

Return Value

RKConstraints

Remove <SIZE>

rk_alRemoveSizeConstraints()
Remove all size constraints
Declaration
Swift

public func rk_alRemoveSizeConstraints()
rk_alRemoveSizeHeightConstraints()
Remove all height constraints
Declaration
Swift

public func rk_alRemoveSizeHeightConstraints()
rk_alRemoveSizeWidthConstraints()
Remove all width constraints
Declaration
Swift

public func rk_alRemoveSizeWidthConstraints()

SafeArea

rkSafeAreaLayoutGuide
Return
- safeAreaLayoutGuide for >= iOS 11
- layoutMarginsGuide for < iOS 11
Declaration
Swift

@available(iOS 9, *) public var rkSafeAreaLayoutGuide: UILayoutGuide { get }
rkSafeAreaInsets
Return
- safeAreaInsets for >= iOS 11
- UIEdgeInsets(top: x, left: 0, bottom: y, right: 0) for < iOS 11
where:
- x – maxY for NavigationBar or maxY for StatusBar
- y – minY for TabBar
Declaration
Swift

@available(iOS 8, *) public var rkSafeAreaInsets: UIEdgeInsets { get }