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Merge pull request #143 from devxoul/availability 

Add availability check for iOS 8 and OS X 10.10 APIs.
This commit is contained in:
Robert Payne 2015-09-19 12:15:48 +12:00
parent 1754ffd536 ba03f22eb8
commit 552b1520f3
2 changed files with 41 additions and 39 deletions
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26
Source/Constraint.swift
View File

@ -138,24 +138,24 @@ internal class ConcreteConstraint: Constraint {
} }
internal override func activate() -> Void { internal override func activate() -> Void {
if NSLayoutConstraint.respondsToSelector("activateConstraints:") && self.installInfo != nil { guard #available(iOS 8.0, OSX 10.10, *), self.installInfo != nil else {
let layoutConstraints = self.installInfo!.layoutConstraints.allObjects as! [LayoutConstraint]
if layoutConstraints.count > 0 {
NSLayoutConstraint.activateConstraints(layoutConstraints)
}
} else {
self.install() self.install()
return
}
let layoutConstraints = self.installInfo!.layoutConstraints.allObjects as! [LayoutConstraint]
if layoutConstraints.count > 0 {
NSLayoutConstraint.activateConstraints(layoutConstraints)
} }
} }
internal override func deactivate() -> Void { internal override func deactivate() -> Void {
if NSLayoutConstraint.respondsToSelector("deactivateConstraints:") && self.installInfo != nil { guard #available(iOS 8.0, OSX 10.10, *), self.installInfo != nil else {
let layoutConstraints = self.installInfo!.layoutConstraints.allObjects as! [LayoutConstraint] self.install()
if layoutConstraints.count > 0 { return
NSLayoutConstraint.deactivateConstraints(layoutConstraints) }
} let layoutConstraints = self.installInfo!.layoutConstraints.allObjects as! [LayoutConstraint]
} else { if layoutConstraints.count > 0 {
self.uninstall() NSLayoutConstraint.deactivateConstraints(layoutConstraints)
} }
} }

54
Source/ConstraintAttributes.swift
View File

@ -125,32 +125,34 @@ internal struct ConstraintAttributes: OptionSetType, BooleanType {
attrs.append(.Baseline) attrs.append(.Baseline)
} }
#if os(iOS) #if os(iOS)
if (self.contains(ConstraintAttributes.FirstBaseline)) { if #available(iOS 8.0, *) {
attrs.append(.FirstBaseline) if (self.contains(ConstraintAttributes.FirstBaseline)) {
} attrs.append(.FirstBaseline)
if (self.contains(ConstraintAttributes.LeftMargin)) { }
attrs.append(.LeftMargin) if (self.contains(ConstraintAttributes.LeftMargin)) {
} attrs.append(.LeftMargin)
if (self.contains(ConstraintAttributes.RightMargin)) { }
attrs.append(.RightMargin) if (self.contains(ConstraintAttributes.RightMargin)) {
} attrs.append(.RightMargin)
if (self.contains(ConstraintAttributes.TopMargin)) { }
attrs.append(.TopMargin) if (self.contains(ConstraintAttributes.TopMargin)) {
} attrs.append(.TopMargin)
if (self.contains(ConstraintAttributes.BottomMargin)) { }
attrs.append(.BottomMargin) if (self.contains(ConstraintAttributes.BottomMargin)) {
} attrs.append(.BottomMargin)
if (self.contains(ConstraintAttributes.LeadingMargin)) { }
attrs.append(.LeadingMargin) if (self.contains(ConstraintAttributes.LeadingMargin)) {
} attrs.append(.LeadingMargin)
if (self.contains(ConstraintAttributes.TrailingMargin)) { }
attrs.append(.TrailingMargin) if (self.contains(ConstraintAttributes.TrailingMargin)) {
} attrs.append(.TrailingMargin)
if (self.contains(ConstraintAttributes.CenterXWithinMargins)) { }
attrs.append(.CenterXWithinMargins) if (self.contains(ConstraintAttributes.CenterXWithinMargins)) {
} attrs.append(.CenterXWithinMargins)
if (self.contains(ConstraintAttributes.CenterYWithinMargins)) { }
attrs.append(.CenterYWithinMargins) if (self.contains(ConstraintAttributes.CenterYWithinMargins)) {
attrs.append(.CenterYWithinMargins)
}
} }
#endif #endif
return attrs return attrs