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iOS11+: anchor.systemSpacing(_,multiplier:)

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relikd
2020-07-04 00:51:20 +02:00
parent 40a52d6966
commit d96994e4e9
3 changed files with 36 additions and 1 deletions
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24
Sources/TextualAutoLayout/TextualAutoLayout.swift
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@@ -122,3 +122,27 @@ public extension Array where Element: NSLayoutConstraint {
return self
}
}
// I couldn't find a better way to handle it, but these methods are particularly useful.
// Sadly, the syntax isn't quite as readable as the stuff above.
#if !os(macOS)
@available(iOS 11, tvOS 11, *)
public extension NSLayoutXAxisAnchor {
/// Calls and activates `.constraint(equalToSystemSpacingAfter: a)`
@discardableResult func systemSpacing(_ equal: NSLayoutXAxisAnchor, multiplier m: CGFloat = 1.0) -> NSLayoutConstraint { constraint(equalToSystemSpacingAfter: equal, multiplier: m).on() }
/// Calls and activates `.constraint(lessThanOrEqualToSystemSpacingAfter: a)`
@discardableResult func systemSpacing(lessThan a: NSLayoutXAxisAnchor, multiplier m: CGFloat = 1.0) -> NSLayoutConstraint { constraint(lessThanOrEqualToSystemSpacingAfter: a, multiplier: m).on() }
/// Calls and activates `.constraint(greaterThanOrEqualToSystemSpacingAfter: a)`
@discardableResult func systemSpacing(greaterThan a: NSLayoutXAxisAnchor, multiplier m: CGFloat = 1.0) -> NSLayoutConstraint { constraint(greaterThanOrEqualToSystemSpacingAfter: a, multiplier: m).on() }
}
@available(iOS 11, tvOS 11, *)
public extension NSLayoutYAxisAnchor {
/// Calls and activates `.constraint(equalToSystemSpacingBelow: a)`
@discardableResult func systemSpacing(_ equal: NSLayoutYAxisAnchor, multiplier m: CGFloat = 1.0) -> NSLayoutConstraint { constraint(equalToSystemSpacingBelow: equal, multiplier: m).on() }
/// Calls and activates `.constraint(lessThanOrEqualToSystemSpacingBelow: a)`
@discardableResult func systemSpacing(lessThan a: NSLayoutYAxisAnchor, multiplier m: CGFloat = 1.0) -> NSLayoutConstraint { constraint(lessThanOrEqualToSystemSpacingBelow: a, multiplier: m).on() }
/// Calls and activates `.constraint(greaterThanOrEqualToSystemSpacingBelow: a)`
@discardableResult func systemSpacing(greaterThan a: NSLayoutYAxisAnchor, multiplier m: CGFloat = 1.0) -> NSLayoutConstraint { constraint(greaterThanOrEqualToSystemSpacingBelow: a, multiplier: m).on() }
}
#endif