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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,194 @@ | ||
| // | ||
| // NSLayoutAnchor+Extension.swift | ||
| // CoolLayout | ||
| // | ||
| // Created by Sudo.park on 2019/11/30. | ||
| // | ||
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| import UIKit | ||
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| fileprivate extension NSLayoutConstraint { | ||
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| private var shouldActive: Bool { | ||
| if let firstView = self.firstItem as? UIView { | ||
| return firstView.shouldActiveWhenConstraintMade | ||
| } | ||
| return false | ||
| } | ||
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| func activeOrNot() -> NSLayoutConstraint { | ||
| if shouldActive { | ||
| self.isActive = true | ||
| } | ||
| return self | ||
| } | ||
| } | ||
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| // MARK: - Equal operation | ||
| extension NSLayoutXAxisAnchor { | ||
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| @discardableResult | ||
| public func equal(_ otherAnchor: NSLayoutXAxisAnchor) -> NSLayoutConstraint { | ||
| return self.constraint(equalTo: otherAnchor) | ||
| .activeOrNot() | ||
| } | ||
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| @discardableResult | ||
| public func equal(_ half: HalfNSLayoutConstraint<NSLayoutXAxisAnchor>) -> NSLayoutConstraint { | ||
| return self.constraint(equalTo: half.referenceAnchor, constant: half.constant) | ||
| .activeOrNot() | ||
| } | ||
| } | ||
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| extension NSLayoutYAxisAnchor { | ||
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| @discardableResult | ||
| public func equal(_ otherAnchor: NSLayoutYAxisAnchor) -> NSLayoutConstraint { | ||
| return self.constraint(equalTo: otherAnchor) | ||
| .activeOrNot() | ||
| } | ||
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| @discardableResult | ||
| public func equal(_ half: HalfNSLayoutConstraint<NSLayoutYAxisAnchor>) -> NSLayoutConstraint { | ||
| return self.constraint(equalTo: half.referenceAnchor, constant: half.constant) | ||
| .activeOrNot() | ||
| } | ||
| } | ||
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| extension NSLayoutDimension { | ||
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| @discardableResult | ||
| public func equal(_ constant: CGFloat) -> NSLayoutConstraint { | ||
| return self.constraint(equalToConstant: constant) | ||
| .activeOrNot() | ||
| } | ||
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| @discardableResult | ||
| public func equal(_ otherAnchor: NSLayoutDimension) -> NSLayoutConstraint { | ||
| return self.constraint(equalTo: otherAnchor) | ||
| .activeOrNot() | ||
| } | ||
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| @discardableResult | ||
| public func equal(_ half: HalfNSLayoutConstraint<NSLayoutDimension>) -> NSLayoutConstraint { | ||
| guard let layoutDimension = half.referenceAnchor as? NSLayoutDimension else { | ||
| fatalError() | ||
| } | ||
| return self.constraint(equalTo: layoutDimension, multiplier: half.multiplier, constant: half.constant) | ||
| .activeOrNot() | ||
| } | ||
| } | ||
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| // MARK: - greaterThan operation | ||
| extension NSLayoutXAxisAnchor { | ||
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| @discardableResult | ||
| public func greaterThan(orEqual otherAnchor: NSLayoutXAxisAnchor) -> NSLayoutConstraint { | ||
| return self.constraint(greaterThanOrEqualTo: otherAnchor) | ||
| .activeOrNot() | ||
| } | ||
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| @discardableResult | ||
| public func greaterThan(orEqual half: HalfNSLayoutConstraint<NSLayoutXAxisAnchor>) -> NSLayoutConstraint { | ||
| return self.constraint(greaterThanOrEqualTo: half.referenceAnchor, constant: half.constant) | ||
| .activeOrNot() | ||
| } | ||
| } | ||
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| extension NSLayoutYAxisAnchor { | ||
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| @discardableResult | ||
| public func greaterThan(orEqual otherAnchor: NSLayoutYAxisAnchor) -> NSLayoutConstraint { | ||
| return self.constraint(greaterThanOrEqualTo: otherAnchor) | ||
| .activeOrNot() | ||
| } | ||
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| @discardableResult | ||
| public func greaterThan(orEqual half: HalfNSLayoutConstraint<NSLayoutYAxisAnchor>) -> NSLayoutConstraint { | ||
| return self.constraint(greaterThanOrEqualTo: half.referenceAnchor, constant: half.constant) | ||
| .activeOrNot() | ||
| } | ||
| } | ||
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| extension NSLayoutDimension { | ||
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| @discardableResult | ||
| public func greaterThan(orEqual constant: CGFloat) -> NSLayoutConstraint { | ||
| return self.constraint(greaterThanOrEqualToConstant: constant) | ||
| .activeOrNot() | ||
| } | ||
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| @discardableResult | ||
| public func greaterThan(orEqual otherAnchor: NSLayoutDimension) -> NSLayoutConstraint { | ||
| return self.constraint(greaterThanOrEqualTo: otherAnchor) | ||
| .activeOrNot() | ||
| } | ||
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| @discardableResult | ||
| public func greaterThan(orEqual half: HalfNSLayoutConstraint<NSLayoutDimension>) -> NSLayoutConstraint { | ||
| guard let layoutDimension = half.referenceAnchor as? NSLayoutDimension else { | ||
| fatalError() | ||
| } | ||
| return self.constraint(greaterThanOrEqualTo: layoutDimension, | ||
| multiplier: half.multiplier, constant: half.constant) | ||
| .activeOrNot() | ||
| } | ||
| } | ||
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| // MARK: - lessThan operation | ||
| extension NSLayoutXAxisAnchor { | ||
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| @discardableResult | ||
| public func lessThan(orEqual otherAnchor: NSLayoutXAxisAnchor) -> NSLayoutConstraint { | ||
| return self.constraint(lessThanOrEqualTo: otherAnchor) | ||
| .activeOrNot() | ||
| } | ||
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| @discardableResult | ||
| public func lessThan(orEqual half: HalfNSLayoutConstraint<NSLayoutXAxisAnchor>) -> NSLayoutConstraint { | ||
| return self.constraint(lessThanOrEqualTo: half.referenceAnchor, constant: half.constant) | ||
| .activeOrNot() | ||
| } | ||
| } | ||
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| extension NSLayoutYAxisAnchor { | ||
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| @discardableResult | ||
| public func lessThan(orEqual otherAnchor: NSLayoutYAxisAnchor) -> NSLayoutConstraint { | ||
| return self.constraint(lessThanOrEqualTo: otherAnchor) | ||
| .activeOrNot() | ||
| } | ||
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| @discardableResult | ||
| public func lessThan(orEqual half: HalfNSLayoutConstraint<NSLayoutYAxisAnchor>) -> NSLayoutConstraint { | ||
| return self.constraint(lessThanOrEqualTo: half.referenceAnchor, constant: half.constant) | ||
| .activeOrNot() | ||
| } | ||
| } | ||
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| extension NSLayoutDimension { | ||
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| @discardableResult | ||
| public func lessThan(orEqual constant: CGFloat) -> NSLayoutConstraint { | ||
| return self.constraint(lessThanOrEqualToConstant: constant) | ||
| .activeOrNot() | ||
| } | ||
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| @discardableResult | ||
| public func lessThan(orEqual otherAnchor: NSLayoutDimension) -> NSLayoutConstraint { | ||
| return self.constraint(lessThanOrEqualTo: otherAnchor) | ||
| .activeOrNot() | ||
| } | ||
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| @discardableResult | ||
| public func lessThan(orEqual half: HalfNSLayoutConstraint<NSLayoutDimension>) -> NSLayoutConstraint { | ||
| guard let layoutDimension = half.referenceAnchor as? NSLayoutDimension else { | ||
| fatalError() | ||
| } | ||
| return self.constraint(lessThanOrEqualTo: layoutDimension, | ||
| multiplier: half.multiplier, constant: half.constant) | ||
| .activeOrNot() | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
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@@ -57,6 +57,4 @@ public extension NSLayoutConstraint { | |
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| return newConstraint | ||
| } | ||
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| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| // | ||
| // CircleViewController.swift | ||
| // CoolLayout_Example | ||
| // | ||
| // Created by Sudo.park on 2019/11/30. | ||
| // Copyright © 2019 CocoaPods. All rights reserved. | ||
| // | ||
|
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| import UIKit | ||
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| import CoolLayout | ||
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| class CircleViewController: UIViewController { | ||
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| private let circleView = UIView { | ||
| $0.backgroundColor = UIColor.blue | ||
| } | ||
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| private let label = UILabel { | ||
| $0.textColor = UIColor.black | ||
| $0.textAlignment = .center | ||
| $0.numberOfLines = 0 | ||
| $0.font = UIFont.boldSystemFont(ofSize: 18) | ||
| } | ||
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| override func viewDidLoad() { | ||
| super.viewDidLoad() | ||
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| self.view.apply { | ||
| $0.backgroundColor = UIColor.white | ||
| $0.addSubview(circleView) | ||
| $0.addSubview(label) | ||
| } | ||
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| self.circleView | ||
| .activate { | ||
| $0.centerXAnchor.equal(self.view.centerXAnchor) | ||
| $0.centerYAnchor.equal(self.view.centerYAnchor) | ||
| $0.widthAnchor.equal(100) | ||
| $0.heightAnchor.equal(100) | ||
| } | ||
| self.circleView | ||
| .apply { | ||
| $0.layoutIfNeeded() | ||
| $0.clipsToBounds = true | ||
| $0.layer.cornerRadius = $0.frame.width / 2 | ||
| } | ||
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| self.label.apply { | ||
| $0.text = "This method builds faster than using a custom operator." | ||
| } | ||
| .activate { | ||
| $0.centerXAnchor.equal(self.view.centerXAnchor) | ||
| $0.topAnchor.equal(self.circleView.bottomAnchor + 50) | ||
| $0.leadingAnchor.greaterThan(orEqual: self.view.leadingAnchor + 20) | ||
| $0.trailingAnchor.lessThan(orEqual: self.view.trailingAnchor + -20) | ||
| } | ||
| } | ||
| } |
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