├── .DS_Store ├── .gitignore ├── .swiftpm └── xcode │ └── package.xcworkspace │ ├── contents.xcworkspacedata │ └── xcshareddata │ └── IDEWorkspaceChecks.plist ├── LICENSE ├── Package.swift ├── README.md ├── SimplyLayout.podspec ├── SimplyLayout.xcodeproj ├── project.pbxproj ├── project.xcworkspace │ ├── contents.xcworkspacedata │ └── xcshareddata │ │ └── IDEWorkspaceChecks.plist └── xcshareddata │ └── xcschemes │ └── SimplyLayout.xcscheme ├── Sources ├── SimplyLayout │ ├── Anchor │ │ ├── CenterAnchor.swift │ │ └── EdgeAnchor.swift │ ├── Core │ │ ├── AttributedAnchor.swift │ │ ├── AttributedConstant.swift │ │ ├── AttributedDimension.swift │ │ ├── NSLayoutAxisAnchorExtension.swift │ │ ├── NSLayoutConstraintExtension.swift │ │ ├── NSLayoutDimensionExtension.swift │ │ └── SimplyLayout.swift │ ├── Group │ │ └── ConstraintGroup.swift │ ├── Info.plist │ └── SimplyLayout.h └── SimplyLayoutDemo │ ├── AppDelegate.swift │ ├── Assets.xcassets │ └── AppIcon.appiconset │ │ └── Contents.json │ ├── Base.lproj │ ├── LaunchScreen.storyboard │ └── Main.storyboard │ ├── Info.plist │ └── ViewController.swift └── Tests └── SimplyLayoutTests └── Test.swift /.DS_Store: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/aipeople/SimplyLayout/1d4c3ce9698e70bde6662e40b5bb0a4641c57791/.DS_Store -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore 4 | 5 | ## Build generated 6 | build/ 7 | DerivedData/ 8 | 9 | ## Various settings 10 | *.pbxuser 11 | !default.pbxuser 12 | *.mode1v3 13 | !default.mode1v3 14 | *.mode2v3 15 | !default.mode2v3 16 | *.perspectivev3 17 | !default.perspectivev3 18 | xcuserdata/ 19 | 20 | ## Other 21 | *.moved-aside 22 | *.xccheckout 23 | *.xcscmblueprint 24 | 25 | ## Obj-C/Swift specific 26 | *.hmap 27 | *.ipa 28 | *.dSYM.zip 29 | *.dSYM 30 | 31 | ## Playgrounds 32 | timeline.xctimeline 33 | playground.xcworkspace 34 | 35 | # Swift Package Manager 36 | # 37 | # Add this line if you want to avoid checking in source code from Swift Package Manager dependencies. 38 | # Packages/ 39 | # Package.pins 40 | .build/ 41 | 42 | # CocoaPods 43 | # 44 | # We recommend against adding the Pods directory to your .gitignore. However 45 | # you should judge for yourself, the pros and cons are mentioned at: 46 | # https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control 47 | # 48 | # Pods/ 49 | 50 | # Carthage 51 | # 52 | # Add this line if you want to avoid checking in source code from Carthage dependencies. 53 | # Carthage/Checkouts 54 | 55 | Carthage/Build 56 | 57 | # fastlane 58 | # 59 | # It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the 60 | # screenshots whenever they are needed. 61 | # For more information about the recommended setup visit: 62 | # https://docs.fastlane.tools/best-practices/source-control/#source-control 63 | 64 | fastlane/report.xml 65 | fastlane/Preview.html 66 | fastlane/screenshots 67 | fastlane/test_output 68 | .DS_Store 69 | -------------------------------------------------------------------------------- /.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /.swiftpm/xcode/package.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2017 Su Xing-Yu 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /Package.swift: -------------------------------------------------------------------------------- 1 | // swift-tools-version: 5.9 2 | // The swift-tools-version declares the minimum version of Swift required to build this package. 3 | 4 | import PackageDescription 5 | 6 | let package = Package( 7 | name: "SimplyLayout", 8 | products: [ 9 | // Products define the executables and libraries a package produces, making them visible to other packages. 10 | .library( 11 | name: "SimplyLayout", 12 | targets: ["SimplyLayout"]), 13 | ], 14 | targets: [ 15 | // Targets are the basic building blocks of a package, defining a module or a test suite. 16 | // Targets can depend on other targets in this package and products from dependencies. 17 | .target( 18 | name: "SimplyLayout"), 19 | .testTarget( 20 | name: "SimplyLayoutTests", 21 | dependencies: ["SimplyLayout"]), 22 | ] 23 | ) 24 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # SimplyLayout 2 | A swift syntactic sugar for anchor based Auto Layout 3 | 4 | # Installation 5 | ### CocoaPod 6 | ```` 7 | # Swift 4 with full functions, including `Core`, `Anchor` and `Group` 8 | pod 'SimplyLayout' 9 | 10 | # Swift 4 with syntactic sugar only 11 | pod 'SimplyLayout/Core' 12 | 13 | # Swift 4 with convenience virtual anchors (CenterAnchor, EdgeAnchor, etc.) 14 | pod 'SimplyLayout/Anchor' 15 | 16 | # Swift 4 with constraint grouping functions 17 | pod 'SimplyLayout/Group' 18 | 19 | # Swift 3 20 | pod 'SimplyLayout', :git => 'https://github.com/aipeople/SimplyLayout.git', :tag => 'swift3-1.0.1' 21 | ```` 22 | 23 | # Usage 24 | ### Operator 25 | * `+`, `-` -> Set the constant 26 | * `*` -> Set the multiplier 27 | * `~` -> Set the priority 28 | 29 | Example: 30 | ```` swift 31 | import SimplyLayout 32 | 33 | view.widthAnchor == 100 34 | // view.widthAnchor.constraint(equalToConstant: 100).isActive = true 35 | // view.translatesAutoresizingMaskIntoConstraints = false 36 | 37 | view.heightAnchor == view.superview!.heightAnchor * 0.25 + 40 ~ .defautHigh 38 | // let constraint = view.heightAnchor.constraint(equalTo: view.superview!.heightAnchor, multiplier: 0.25, constant: 40) 39 | // constraint.priority = .defaultHigh 40 | // constraint.isActive = true 41 | // view.translatesAutoresizingMaskIntoConstraints = false 42 | ```` 43 | 44 | ### Activation 45 | Constraints will be activated automatically. 46 | You can turn this feature off by setting the `SimplyLayout.config.defaultActivation` to `false`. 47 | For some reasons, you may want to create a constraint with different activation status. `++` and `--` can help you get rid of default configs. 48 | 49 | Example: 50 | ```` swift 51 | SimplyLayout.config.defaultActivation = true 52 | 53 | view.widthAnchor == 100 54 | // view.widthAnchor.constraint(equalToConstant: 100).isActive = true 55 | 56 | view.widthAnchor == --100 57 | // view.widthAnchor.constraint(equalToConstant: 100) 58 | 59 | SimplyLayout.config.defaultActivation = false 60 | 61 | view.heightAnchor == view.superview!.heightAnchor * 0.25 62 | // let constraint = view.heightAnchor.constraint(equalTo: view.superview!.heightAnchor, multiplier: 0.25) 63 | 64 | view.heightAnchor == ++view.superview!.heightAnchor * 0.25 65 | // let constraint = view.heightAnchor.constraint(equalTo: view.superview!.heightAnchor, multiplier: 0.25) 66 | // constraint.isActive = true 67 | ```` 68 | 69 | ### Access the constraint 70 | A new created constraint can be accessed easily by using the `=` operator. 71 | 72 | Example: 73 | ```` swift 74 | let constraint = view.heightAnchor == view.superview!.heightAnchor * 0.25 75 | ```` 76 | 77 | ### Virtual Anchor 78 | Virtual anchors **are not** real `NSLayoutAnchor`. These anchors just help you create the constraints esily. 79 | * **`CenterAnchor`** 80 | ```` swift 81 | view.centerAnchor == view.superview!.centerAnchor + CGPoint(x: 10, y: 10) 82 | // view.centerXAnchor == view.superview!.centerXAnchor + 10 83 | // view.centerYAnchor == view.superview!.centerYAnchor + 10 84 | ```` 85 | * **`EdgeAnchor`** 86 | ```` swift 87 | view.edgeAnchor == view.superview!.edgeAnchor 88 | // view.topAnchor == view.superview!.topAnchor 89 | // view.leadingAnchor == view.superview!.leadingAnchor 90 | // view.bottomAnchor == view.superview!.bottomAnchor 91 | // view.trailingAnchor == view.superview!.trailingAnchor 92 | 93 | view.edgeAnchor == view.superview!.edgeAnchor.insetBy(top: 10, left: 20, bottom: 10, right: 20) 94 | // view.edgeAnchor == view.superview!.edgeAnchor + UIEdgeInsets(top: 10, left: 20, bottom: 10, right: 20) 95 | // -----------------------(equals to)------------------------ 96 | // view.topAnchor == view.superview!.topAnchor + 10 97 | // view.leadingAnchor == view.superview!.leadingAnchor + 20 98 | // view.bottomAnchor == view.superview!.bottomAnchor - 10 99 | // view.trailingAnchor == view.superview!.trailingAnchor - 20 100 | ```` 101 | 102 | ### Grouping 103 | Grouping functions require `SimplyLayout/Group` submodule. It provides a convenience way to group several constraints together. A group of constraints is represented by an array of NSLayoutConstraint, which can be activated/deactivated together. 104 | 105 | Example: 106 | ```` swift 107 | let boxA = UIView() 108 | let boxB = UIView() 109 | 110 | // `verticalConstraintGroup` is an array with NSLayoutConstraint. 111 | // In the following case, it will contains two constraints. 112 | let verticalConstraintGroup = NSLayoutConstraint.group { 113 | boxA.centerXAnchor == boxA.superview!.centerXAnchor 114 | boxB.centerXAnchor == boxB.superview!.centerXAnchor 115 | } 116 | 117 | // All the constraints created in the block won't be activated 118 | let horizontalConstraintGroup = NSLayoutConstraint.group(activated: false) { 119 | boxA.centerYAnchor == boxA.superview!.centerYAnchor 120 | boxB.centerYAnchor == boxB.superview!.centerYAnchor 121 | } 122 | 123 | // Deactivate all constraints in the group 124 | verticalConstraintGroup.deactivateAll() 125 | 126 | // Activate all constraints in the group 127 | horizontalConstraintGroup.activateAll() 128 | ```` 129 | 130 | # Configurations 131 | * `postNotificationWhenConstrantCreate`: A notification named `SimplyLayout.constraintCreatedNotification` will be posted immediately after a constraint has been setup by using the syntax of SimplyLayout. Default value is `false`. 132 | 133 | Constraint related behavior can be set in `SimplyLayout.config`. 134 | * `defaultPriority`：Default value is `.required` 135 | * `defaultActivation`：Default value is `true` 136 | -------------------------------------------------------------------------------- /SimplyLayout.podspec: -------------------------------------------------------------------------------- 1 | # 2 | # Be sure to run `pod spec lint SimplyLayout.podspec' to ensure this is a 3 | # valid spec and to remove all comments including this before submitting the spec. 4 | # 5 | # To learn more about Podspec attributes see http://docs.cocoapods.org/specification.html 6 | # To see working Podspecs in the CocoaPods repo see https://github.com/CocoaPods/Specs/ 7 | # 8 | 9 | Pod::Spec.new do |s| 10 | 11 | # ――― Spec Metadata ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 12 | # 13 | # These will help people to find your library, and whilst it 14 | # can feel like a chore to fill in it's definitely to your advantage. The 15 | # summary should be tweet-length, and the description more in depth. 16 | # 17 | 18 | s.name = "SimplyLayout" 19 | s.version = "1.2.0" 20 | s.summary = "A swift syntactic sugar for anchor based Auto Layout" 21 | 22 | # This description is used to generate tags and improve search results. 23 | # * Think: What does it do? Why did you write it? What is the focus? 24 | # * Try to keep it short, snappy and to the point. 25 | # * Write the description between the DESC delimiters below. 26 | # * Finally, don't worry about the indent, CocoaPods strips it! 27 | s.description = <<-DESC 28 | Create Auto Layout constraints in formula liked coding style. 29 | DESC 30 | 31 | s.homepage = "https://github.com/aipeople/SimplyLayout" 32 | # s.screenshots = "www.example.com/screenshots_1.gif", "www.example.com/screenshots_2.gif" 33 | 34 | 35 | # ――― Spec License ――――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 36 | # 37 | # Licensing your code is important. See http://choosealicense.com for more info. 38 | # CocoaPods will detect a license file if there is a named LICENSE* 39 | # Popular ones are 'MIT', 'BSD' and 'Apache License, Version 2.0'. 40 | # 41 | 42 | s.license = "MIT" 43 | # s.license = { :type => "MIT", :file => "FILE_LICENSE" } 44 | 45 | 46 | # ――― Author Metadata ――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 47 | # 48 | # Specify the authors of the library, with email addresses. Email addresses 49 | # of the authors are extracted from the SCM log. E.g. $ git log. CocoaPods also 50 | # accepts just a name if you'd rather not provide an email address. 51 | # 52 | # Specify a social_media_url where others can refer to, for example a twitter 53 | # profile URL. 54 | # 55 | 56 | s.author = { "Su, Hsing-Yu" => "aipeople0513@gmail.com" } 57 | # Or just: s.author = "Su Xing-Yu" 58 | # s.authors = { "Su Xing-Yu" => "email@address.com" } 59 | # s.social_media_url = "http://twitter.com/Su Xing-Yu" 60 | 61 | # ――― Platform Specifics ――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 62 | # 63 | # If this Pod runs only on iOS or OS X, then specify the platform and 64 | # the deployment target. You can optionally include the target after the platform. 65 | # 66 | 67 | # s.platform = :ios 68 | s.platform = :ios, "9.0" 69 | s.swift_versions = '4.0', '5.0' 70 | 71 | # When using multiple platforms 72 | # s.ios.deployment_target = "5.0" 73 | # s.osx.deployment_target = "10.7" 74 | # s.watchos.deployment_target = "2.0" 75 | # s.tvos.deployment_target = "9.0" 76 | 77 | 78 | # ――― Source Location ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 79 | # 80 | # Specify the location from where the source should be retrieved. 81 | # Supports git, hg, bzr, svn and HTTP. 82 | # 83 | 84 | s.source = { :git => "https://github.com/aipeople/SimplyLayout.git", :tag => "1.2.0" } 85 | 86 | 87 | # ――― Source Code ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 88 | # 89 | # CocoaPods is smart about how it includes source code. For source files 90 | # giving a folder will include any swift, h, m, mm, c & cpp files. 91 | # For header files it will include any header in the folder. 92 | # Not including the public_header_files will make all headers public. 93 | # 94 | 95 | s.source_files = "Sources/SimplyLayout/{Core, Anchor, Group}/**/*.{swift}" 96 | # s.exclude_files = "Classes/Exclude" 97 | 98 | # s.public_header_files = "Classes/**/*.h" 99 | 100 | s.default_subspecs = 'Core', 'Anchor', 'Group' 101 | s.subspec 'Core' do |sp| 102 | sp.source_files = 'Sources/SimplyLayout/Core/**/*.{swift}', 'Sources/SimplyLayout/SimplyLayout.h' 103 | end 104 | 105 | s.subspec 'Anchor' do |sp| 106 | sp.source_files = 'Sources/SimplyLayout/Anchor/**/*.{swift}' 107 | sp.dependency 'SimplyLayout/Core' 108 | end 109 | 110 | s.subspec 'Group' do |sp| 111 | sp.source_files = 'Sources/SimplyLayout/Group/**/*.{swift}' 112 | sp.dependency 'SimplyLayout/Core' 113 | end 114 | 115 | 116 | # ――― Resources ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 117 | # 118 | # A list of resources included with the Pod. These are copied into the 119 | # target bundle with a build phase script. Anything else will be cleaned. 120 | # You can preserve files from being cleaned, please don't preserve 121 | # non-essential files like tests, examples and documentation. 122 | # 123 | 124 | # s.resource = "icon.png" 125 | # s.resources = "Resources/*.png" 126 | 127 | # s.preserve_paths = "FilesToSave", "MoreFilesToSave" 128 | 129 | 130 | # ――― Project Linking ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 131 | # 132 | # Link your library with frameworks, or libraries. Libraries do not include 133 | # the lib prefix of their name. 134 | # 135 | 136 | s.framework = "UIKit" 137 | # s.frameworks = "SomeFramework", "AnotherFramework" 138 | 139 | # s.library = "iconv" 140 | # s.libraries = "iconv", "xml2" 141 | 142 | 143 | # ――― Project Settings ――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 144 | # 145 | # If your library depends on compiler flags you can set them in the xcconfig hash 146 | # where they will only apply to your library. 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571 | defaultConfigurationIsVisible = 0; 572 | defaultConfigurationName = Release; 573 | }; 574 | 239416251F6B86FD003C9B80 /* Build configuration list for PBXNativeTarget "SimplyLayout" */ = { 575 | isa = XCConfigurationList; 576 | buildConfigurations = ( 577 | 239416261F6B86FD003C9B80 /* Debug */, 578 | 239416271F6B86FD003C9B80 /* Release */, 579 | ); 580 | defaultConfigurationIsVisible = 0; 581 | defaultConfigurationName = Release; 582 | }; 583 | /* End XCConfigurationList section */ 584 | }; 585 | rootObject = 239415FA1F6B86EE003C9B80 /* Project object */; 586 | } 587 | -------------------------------------------------------------------------------- /SimplyLayout.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /SimplyLayout.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /SimplyLayout.xcodeproj/xcshareddata/xcschemes/SimplyLayout.xcscheme: -------------------------------------------------------------------------------- 1 | 2 | 5 | 8 | 9 | 15 | 21 | 22 | 23 | 24 | 25 | 30 | 31 | 32 | 33 | 43 | 44 | 50 | 51 | 57 | 58 | 59 | 60 | 62 | 63 | 66 | 67 | 68 | -------------------------------------------------------------------------------- /Sources/SimplyLayout/Anchor/CenterAnchor.swift: -------------------------------------------------------------------------------- 1 | // 2 | // CenterAnchor.swift 3 | // SimplyLayout 4 | // 5 | // Created by Sean, Su on 2019/1/1. 6 | // Copyright © 2019 aipeople. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | 12 | public struct CenterAnchor { 13 | 14 | let xAnchor: NSLayoutXAxisAnchor 15 | let yAnchor: NSLayoutYAxisAnchor 16 | let constant: CGPoint 17 | 18 | fileprivate init(xAnchor: NSLayoutXAxisAnchor, yAnchor: NSLayoutYAxisAnchor, constant: CGPoint) { 19 | self.xAnchor = xAnchor 20 | self.yAnchor = yAnchor 21 | self.constant = constant 22 | } 23 | } 24 | 25 | 26 | extension CenterAnchor { 27 | 28 | @discardableResult 29 | public static func ==(lhs: CenterAnchor, rhs: CenterAnchor) -> [NSLayoutConstraint] { 30 | 31 | return [ 32 | lhs.xAnchor == rhs.xAnchor + (rhs.constant.x - lhs.constant.x), 33 | lhs.yAnchor == rhs.yAnchor + (rhs.constant.y - lhs.constant.y) 34 | ] 35 | } 36 | 37 | @discardableResult 38 | public static func +(lhs: CenterAnchor, constant: CGPoint) -> CenterAnchor { 39 | return CenterAnchor( 40 | xAnchor: lhs.xAnchor, 41 | yAnchor: lhs.yAnchor, 42 | constant: CGPoint( 43 | x: lhs.constant.x + constant.x, 44 | y: lhs.constant.y + constant.y 45 | )) 46 | } 47 | } 48 | 49 | 50 | extension UIView { 51 | 52 | public var centerAnchor: CenterAnchor { 53 | return CenterAnchor(xAnchor: centerXAnchor, yAnchor: centerYAnchor, constant: .zero) 54 | } 55 | } 56 | 57 | 58 | @available(iOS 9.0, *) 59 | extension UILayoutGuide { 60 | 61 | public var centerAnchor: CenterAnchor { 62 | return CenterAnchor(xAnchor: centerXAnchor, yAnchor: centerYAnchor, constant: .zero) 63 | } 64 | } 65 | -------------------------------------------------------------------------------- /Sources/SimplyLayout/Anchor/EdgeAnchor.swift: -------------------------------------------------------------------------------- 1 | // 2 | // EdgeAnchor.swift 3 | // SimplyLayout 4 | // 5 | // Created by Sean, Su on 2019/1/1. 6 | // Copyright © 2019 aipeople. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | 12 | public struct EdgeAnchor { 13 | 14 | let topAnchor: NSLayoutYAxisAnchor 15 | let bottomAnchor: NSLayoutYAxisAnchor 16 | let leadingAnchor: NSLayoutXAxisAnchor 17 | let trailingAnchor: NSLayoutXAxisAnchor 18 | let insets: UIEdgeInsets 19 | 20 | public init(top: NSLayoutYAxisAnchor, leading: NSLayoutXAxisAnchor, bottom: NSLayoutYAxisAnchor, trailing: NSLayoutXAxisAnchor, insets: UIEdgeInsets) { 21 | 22 | self.topAnchor = top 23 | self.leadingAnchor = leading 24 | self.bottomAnchor = bottom 25 | self.trailingAnchor = trailing 26 | self.insets = insets 27 | } 28 | 29 | public func insetBy(top: CGFloat, left: CGFloat, bottom: CGFloat, right: CGFloat) -> EdgeAnchor { 30 | 31 | return EdgeAnchor( 32 | top: topAnchor, 33 | leading: leadingAnchor, 34 | bottom: bottomAnchor, 35 | trailing: trailingAnchor, 36 | insets: UIEdgeInsets( 37 | top: insets.top + top, 38 | left: insets.left + left, 39 | bottom: insets.bottom + bottom, 40 | right: insets.right + right 41 | )) 42 | } 43 | 44 | public func insetBy(_ insets: UIEdgeInsets) -> EdgeAnchor { 45 | 46 | return insetBy(top: insets.top, left: insets.left, bottom: insets.bottom, right: insets.right) 47 | } 48 | } 49 | 50 | 51 | extension EdgeAnchor { 52 | 53 | @discardableResult 54 | public static func ==(lhs: EdgeAnchor, rhs: EdgeAnchor) -> [NSLayoutConstraint] { 55 | 56 | return [ 57 | lhs.topAnchor == rhs.topAnchor + (rhs.insets.top - lhs.insets.top), 58 | lhs.leadingAnchor == rhs.leadingAnchor + (rhs.insets.left - lhs.insets.left), 59 | lhs.bottomAnchor == rhs.bottomAnchor - (rhs.insets.bottom - lhs.insets.bottom), 60 | lhs.trailingAnchor == rhs.trailingAnchor - (rhs.insets.right - lhs.insets.right), 61 | ] 62 | } 63 | 64 | @discardableResult 65 | public static func <=(lhs: EdgeAnchor, rhs: EdgeAnchor) -> [NSLayoutConstraint] { 66 | 67 | return [ 68 | lhs.topAnchor >= rhs.topAnchor + (rhs.insets.top - lhs.insets.top), 69 | lhs.leadingAnchor >= rhs.leadingAnchor + (rhs.insets.left - lhs.insets.left), 70 | lhs.bottomAnchor <= rhs.bottomAnchor - (rhs.insets.bottom - lhs.insets.bottom), 71 | lhs.trailingAnchor <= rhs.trailingAnchor - (rhs.insets.right - lhs.insets.right), 72 | ] 73 | } 74 | 75 | @discardableResult 76 | public static func >=(lhs: EdgeAnchor, rhs: EdgeAnchor) -> [NSLayoutConstraint] { 77 | 78 | return [ 79 | lhs.topAnchor <= rhs.topAnchor + (rhs.insets.top - lhs.insets.top), 80 | lhs.leadingAnchor <= rhs.leadingAnchor + (rhs.insets.left - lhs.insets.left), 81 | lhs.bottomAnchor >= rhs.bottomAnchor - (rhs.insets.bottom - lhs.insets.bottom), 82 | lhs.trailingAnchor >= rhs.trailingAnchor - (rhs.insets.right - lhs.insets.right), 83 | ] 84 | } 85 | 86 | @discardableResult 87 | public static func +(lhs: EdgeAnchor, rhs: UIEdgeInsets) -> EdgeAnchor { 88 | 89 | return lhs.insetBy(rhs) 90 | } 91 | } 92 | 93 | 94 | extension UIView { 95 | 96 | public var edgeAnchor: EdgeAnchor { 97 | return EdgeAnchor( 98 | top: topAnchor, 99 | leading: leadingAnchor, 100 | bottom: bottomAnchor, 101 | trailing: trailingAnchor, 102 | insets: .zero 103 | ) 104 | } 105 | 106 | @available(iOS 11.0, *) 107 | public var safeAreaEdgeAnchor: EdgeAnchor { 108 | return EdgeAnchor( 109 | top: safeAreaLayoutGuide.topAnchor, 110 | leading: safeAreaLayoutGuide.leadingAnchor, 111 | bottom: safeAreaLayoutGuide.bottomAnchor, 112 | trailing: safeAreaLayoutGuide.trailingAnchor, 113 | insets: .zero 114 | ) 115 | } 116 | } 117 | 118 | 119 | @available(iOS 9.0, *) 120 | extension UILayoutGuide { 121 | 122 | public var edgeAnchor: EdgeAnchor { 123 | return EdgeAnchor( 124 | top: topAnchor, 125 | leading: leadingAnchor, 126 | bottom: bottomAnchor, 127 | trailing: trailingAnchor, 128 | insets: .zero 129 | ) 130 | } 131 | } 132 | -------------------------------------------------------------------------------- /Sources/SimplyLayout/Core/AttributedAnchor.swift: -------------------------------------------------------------------------------- 1 | // 2 | // AttributedAnchor.swift 3 | // SimplyLayout 4 | // 5 | // Created by aipeople on 27/09/2017. 6 | // Copyright © 2017 aipeople. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | 12 | public struct AttributedAnchor where AnchorType: AnyObject { 13 | 14 | public let anchor: NSLayoutAnchor 15 | public var priority: UILayoutPriority 16 | public var constant: CGFloat 17 | public var shouldActivate: Bool 18 | 19 | init(anchor: NSLayoutAnchor, 20 | constant: CGFloat, 21 | priority: UILayoutPriority = SimplyLayout.config.defaultPriority, 22 | shouldActivate: Bool = SimplyLayout.config.defaultActivation) { 23 | 24 | self.anchor = anchor 25 | self.constant = constant 26 | self.priority = priority 27 | self.shouldActivate = shouldActivate 28 | } 29 | } 30 | 31 | extension AttributedAnchor { 32 | 33 | public static func +(lhs: AttributedAnchor, rhs: CGFloat) -> AttributedAnchor { 34 | 35 | var anchor = lhs 36 | anchor.constant += rhs 37 | return anchor 38 | } 39 | 40 | public static func -(lhs: AttributedAnchor, rhs: CGFloat) -> AttributedAnchor { 41 | 42 | return lhs + -rhs 43 | } 44 | } 45 | 46 | 47 | infix operator ~: SimplyLayoutPriorityPrecedenceGroup 48 | 49 | extension AttributedAnchor { 50 | 51 | public static func ~(lhs: AttributedAnchor, rhs: Float) -> AttributedAnchor { 52 | 53 | return lhs ~ UILayoutPriority(rawValue: rhs) 54 | } 55 | 56 | public static func ~(lhs: AttributedAnchor, rhs: UILayoutPriority) -> AttributedAnchor { 57 | 58 | var anchor = lhs 59 | anchor.priority = rhs 60 | return anchor 61 | } 62 | } 63 | 64 | 65 | prefix operator ++ 66 | prefix operator -- 67 | 68 | extension AttributedAnchor { 69 | 70 | public static prefix func --(lhs: AttributedAnchor) -> AttributedAnchor { 71 | 72 | guard lhs.shouldActivate else { 73 | return lhs 74 | } 75 | 76 | var anchor = lhs 77 | anchor.shouldActivate = false 78 | return anchor 79 | } 80 | 81 | public static prefix func ++(lhs: AttributedAnchor) -> AttributedAnchor { 82 | 83 | guard !lhs.shouldActivate else { 84 | return lhs 85 | } 86 | 87 | var anchor = lhs 88 | anchor.shouldActivate = true 89 | return anchor 90 | } 91 | } 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | -------------------------------------------------------------------------------- /Sources/SimplyLayout/Core/AttributedConstant.swift: -------------------------------------------------------------------------------- 1 | // 2 | // AttributedConstant.swift 3 | // SimplyLayout 4 | // 5 | // Created by aipeople on 28/09/2017. 6 | // Copyright © 2017 aipeople. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | 12 | public struct AttributedConstant { 13 | 14 | public var constant: CGFloat 15 | public var priority: UILayoutPriority 16 | public var shouldActivate: Bool 17 | 18 | init(constant: CGFloat, 19 | priority: UILayoutPriority = SimplyLayout.config.defaultPriority, 20 | shouldActivate: Bool = SimplyLayout.config.defaultActivation) { 21 | 22 | self.constant = constant 23 | self.priority = priority 24 | self.shouldActivate = shouldActivate 25 | } 26 | } 27 | 28 | 29 | extension CGFloat { 30 | 31 | public static func ~(lhs: CGFloat, rhs: Float) -> AttributedConstant { 32 | 33 | return lhs ~ UILayoutPriority(rhs) 34 | } 35 | 36 | public static func ~(lhs: CGFloat, rhs: UILayoutPriority) -> AttributedConstant { 37 | 38 | return AttributedConstant(constant: lhs, priority: rhs) 39 | } 40 | 41 | public static prefix func --(lhs: CGFloat) -> AttributedConstant { 42 | 43 | return AttributedConstant(constant: lhs, shouldActivate: false) 44 | } 45 | 46 | public static prefix func ++(lhs: CGFloat) -> AttributedConstant { 47 | 48 | return AttributedConstant(constant: lhs, shouldActivate: true) 49 | } 50 | } 51 | 52 | extension AttributedConstant { 53 | 54 | public static prefix func --(lhs: AttributedConstant) -> AttributedConstant { 55 | 56 | guard lhs.shouldActivate else { 57 | return lhs 58 | } 59 | 60 | var anchor = lhs 61 | anchor.shouldActivate = false 62 | return anchor 63 | } 64 | 65 | public static prefix func ++(lhs: AttributedConstant) -> AttributedConstant { 66 | 67 | guard !lhs.shouldActivate else { 68 | return lhs 69 | } 70 | 71 | var anchor = lhs 72 | anchor.shouldActivate = true 73 | return anchor 74 | } 75 | } 76 | 77 | -------------------------------------------------------------------------------- /Sources/SimplyLayout/Core/AttributedDimension.swift: -------------------------------------------------------------------------------- 1 | // 2 | // AttributedDimension.swift 3 | // SimplyLayout 4 | // 5 | // Created by aipeople on 28/09/2017. 6 | // Copyright © 2017 aipeople. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | 12 | public struct AttributedDimension { 13 | 14 | public let dimension: NSLayoutDimension 15 | public var priority: UILayoutPriority 16 | public var multiplier: CGFloat 17 | public var constant: CGFloat 18 | public var shouldActivate: Bool 19 | 20 | init(dimension: NSLayoutDimension, 21 | multiplier: CGFloat, 22 | constant: CGFloat, 23 | priority: UILayoutPriority = SimplyLayout.config.defaultPriority, 24 | shouldActivate: Bool = SimplyLayout.config.defaultActivation) { 25 | 26 | self.dimension = dimension 27 | self.multiplier = multiplier 28 | self.constant = constant 29 | self.priority = priority 30 | self.shouldActivate = shouldActivate 31 | } 32 | } 33 | 34 | 35 | extension AttributedDimension { 36 | 37 | public static func +(lhs: AttributedDimension, rhs: CGFloat) -> AttributedDimension { 38 | 39 | var dimension = lhs 40 | dimension.constant += rhs 41 | return dimension 42 | } 43 | 44 | public static func -(lhs: AttributedDimension, rhs: CGFloat) -> AttributedDimension { 45 | 46 | return lhs + -rhs 47 | } 48 | } 49 | 50 | 51 | extension AttributedDimension { 52 | 53 | public static func *(lhs: AttributedDimension, rhs: CGFloat) -> AttributedDimension { 54 | 55 | var dimension = lhs 56 | dimension.multiplier *= rhs 57 | return dimension 58 | } 59 | } 60 | 61 | 62 | extension AttributedDimension { 63 | 64 | public static func ~(lhs: AttributedDimension, rhs: Float) -> AttributedDimension { 65 | 66 | return lhs ~ UILayoutPriority(rhs) 67 | } 68 | 69 | public static func ~(lhs: AttributedDimension, rhs: UILayoutPriority) -> AttributedDimension { 70 | 71 | var dimension = lhs 72 | dimension.priority = rhs 73 | return dimension 74 | } 75 | } 76 | 77 | extension AttributedDimension { 78 | 79 | public static prefix func --(lhs: AttributedDimension) -> AttributedDimension { 80 | 81 | guard lhs.shouldActivate else { 82 | return lhs 83 | } 84 | 85 | var anchor = lhs 86 | anchor.shouldActivate = false 87 | return anchor 88 | } 89 | 90 | public static prefix func ++(lhs: AttributedDimension) -> AttributedDimension { 91 | 92 | guard !lhs.shouldActivate else { 93 | return lhs 94 | } 95 | 96 | var anchor = lhs 97 | anchor.shouldActivate = true 98 | return anchor 99 | } 100 | } 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | -------------------------------------------------------------------------------- /Sources/SimplyLayout/Core/NSLayoutAxisAnchorExtension.swift: -------------------------------------------------------------------------------- 1 | // 2 | // OperatorDifinition.swift 3 | // SimplyLayout 4 | // 5 | // Created by aipeople on 15/09/2017. 6 | // Copyright © 2017 aipeople. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | 12 | extension NSLayoutXAxisAnchor { 13 | 14 | @discardableResult 15 | public static func ==(lhs: NSLayoutXAxisAnchor, rhs: NSLayoutXAxisAnchor) -> NSLayoutConstraint { 16 | 17 | return lhs.constraint(equalTo: rhs).setup() 18 | } 19 | 20 | @discardableResult 21 | public static func <=(lhs: NSLayoutXAxisAnchor, rhs: NSLayoutXAxisAnchor) -> NSLayoutConstraint { 22 | 23 | return lhs.constraint(lessThanOrEqualTo: rhs).setup() 24 | } 25 | 26 | @discardableResult 27 | public static func >=(lhs: NSLayoutXAxisAnchor, rhs: NSLayoutXAxisAnchor) -> NSLayoutConstraint { 28 | 29 | return lhs.constraint(greaterThanOrEqualTo: rhs).setup() 30 | } 31 | 32 | @discardableResult 33 | public static func ==(lhs: NSLayoutXAxisAnchor, rhs: AttributedAnchor) -> NSLayoutConstraint { 34 | 35 | return lhs.constraint(equalTo: rhs.anchor, constant: rhs.constant).setup(withPriority: rhs.priority, activated: rhs.shouldActivate) 36 | } 37 | 38 | @discardableResult 39 | public static func <=(lhs: NSLayoutXAxisAnchor, rhs: AttributedAnchor) -> NSLayoutConstraint { 40 | 41 | return lhs.constraint(lessThanOrEqualTo: rhs.anchor, constant: rhs.constant).setup(withPriority: rhs.priority, activated: rhs.shouldActivate) 42 | } 43 | 44 | @discardableResult 45 | public static func >=(lhs: NSLayoutXAxisAnchor, rhs: AttributedAnchor) -> NSLayoutConstraint { 46 | 47 | return lhs.constraint(greaterThanOrEqualTo: rhs.anchor, constant: rhs.constant).setup(withPriority: rhs.priority, activated: rhs.shouldActivate) 48 | } 49 | 50 | public static func +(lhs: NSLayoutXAxisAnchor, rhs: CGFloat) -> AttributedAnchor { 51 | 52 | return AttributedAnchor(anchor: lhs, constant: rhs) 53 | } 54 | 55 | 56 | public static func -(lhs: NSLayoutXAxisAnchor, rhs: CGFloat) -> AttributedAnchor { 57 | 58 | return lhs + -rhs 59 | } 60 | } 61 | 62 | extension NSLayoutXAxisAnchor { 63 | 64 | public static func ~(lhs: NSLayoutXAxisAnchor, rhs: Float) -> AttributedAnchor { 65 | 66 | return lhs ~ UILayoutPriority(rhs) 67 | } 68 | 69 | public static func ~(lhs: NSLayoutXAxisAnchor, rhs: UILayoutPriority) -> AttributedAnchor { 70 | 71 | return AttributedAnchor(anchor: lhs, constant: 0, priority: rhs) 72 | } 73 | } 74 | 75 | extension NSLayoutXAxisAnchor { 76 | 77 | public static prefix func --(lhs: NSLayoutXAxisAnchor) -> AttributedAnchor { 78 | 79 | var anchor = AttributedAnchor(anchor: lhs, constant: 0) 80 | anchor.shouldActivate = false 81 | return anchor 82 | } 83 | 84 | public static prefix func ++(lhs: NSLayoutXAxisAnchor) -> AttributedAnchor { 85 | 86 | var anchor = AttributedAnchor(anchor: lhs, constant: 0) 87 | anchor.shouldActivate = true 88 | return anchor 89 | } 90 | } 91 | 92 | 93 | extension NSLayoutYAxisAnchor { 94 | 95 | @discardableResult 96 | public static func ==(lhs: NSLayoutYAxisAnchor, rhs: NSLayoutYAxisAnchor) -> NSLayoutConstraint { 97 | 98 | return lhs.constraint(equalTo: rhs).setup() 99 | } 100 | 101 | @discardableResult 102 | public static func <=(lhs: NSLayoutYAxisAnchor, rhs: NSLayoutYAxisAnchor) -> NSLayoutConstraint { 103 | 104 | return lhs.constraint(lessThanOrEqualTo: rhs).setup() 105 | } 106 | 107 | @discardableResult 108 | public static func >=(lhs: NSLayoutYAxisAnchor, rhs: NSLayoutYAxisAnchor) -> NSLayoutConstraint { 109 | 110 | return lhs.constraint(greaterThanOrEqualTo: rhs).setup() 111 | } 112 | 113 | @discardableResult 114 | public static func ==(lhs: NSLayoutYAxisAnchor, rhs: AttributedAnchor) -> NSLayoutConstraint { 115 | 116 | return lhs.constraint(equalTo: rhs.anchor, constant: rhs.constant).setup(withPriority: rhs.priority, activated: rhs.shouldActivate) 117 | } 118 | 119 | @discardableResult 120 | public static func <=(lhs: NSLayoutYAxisAnchor, rhs: AttributedAnchor) -> NSLayoutConstraint { 121 | 122 | return lhs.constraint(lessThanOrEqualTo: rhs.anchor, constant: rhs.constant).setup(withPriority: rhs.priority, activated: rhs.shouldActivate) 123 | } 124 | 125 | @discardableResult 126 | public static func >=(lhs: NSLayoutYAxisAnchor, rhs: AttributedAnchor) -> NSLayoutConstraint { 127 | 128 | return lhs.constraint(greaterThanOrEqualTo: rhs.anchor, constant: rhs.constant).setup(withPriority: rhs.priority, activated: rhs.shouldActivate) 129 | } 130 | 131 | public static func +(lhs: NSLayoutYAxisAnchor, rhs: CGFloat) -> AttributedAnchor { 132 | 133 | return AttributedAnchor(anchor: lhs, constant: rhs) 134 | } 135 | 136 | public static func -(lhs: NSLayoutYAxisAnchor, rhs: CGFloat) -> AttributedAnchor { 137 | 138 | return lhs + -rhs 139 | } 140 | } 141 | 142 | extension NSLayoutYAxisAnchor { 143 | 144 | public static func ~(lhs: NSLayoutYAxisAnchor, rhs: Float) -> AttributedAnchor { 145 | 146 | return lhs ~ UILayoutPriority(rhs) 147 | } 148 | 149 | public static func ~(lhs: NSLayoutYAxisAnchor, rhs: UILayoutPriority) -> AttributedAnchor { 150 | 151 | return AttributedAnchor(anchor: lhs, constant: 0, priority: rhs) 152 | } 153 | } 154 | 155 | extension NSLayoutYAxisAnchor { 156 | 157 | public static prefix func --(lhs: NSLayoutYAxisAnchor) -> AttributedAnchor { 158 | 159 | return AttributedAnchor(anchor: lhs, constant: 0, shouldActivate: false) 160 | } 161 | 162 | public static prefix func ++(lhs: NSLayoutYAxisAnchor) -> AttributedAnchor { 163 | 164 | return AttributedAnchor(anchor: lhs, constant: 0, shouldActivate: true) 165 | } 166 | } 167 | 168 | 169 | 170 | 171 | 172 | 173 | 174 | 175 | 176 | -------------------------------------------------------------------------------- /Sources/SimplyLayout/Core/NSLayoutConstraintExtension.swift: -------------------------------------------------------------------------------- 1 | // 2 | // NSLayoutConstraintExtension.swift 3 | // SimplyLayout 4 | // 5 | // Created by aipeople on 27/09/2017. 6 | // Copyright © 2017 aipeople. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | 12 | // --------------- 13 | // MARK: - Setup 14 | // --------------- 15 | 16 | extension NSLayoutConstraint { 17 | 18 | internal func setup(withPriority priority: UILayoutPriority = SimplyLayout.config.defaultPriority, activated: Bool = SimplyLayout.config.defaultActivation) -> NSLayoutConstraint { 19 | 20 | self.priority = priority 21 | self.isActive = activated 22 | 23 | if let view = firstItem as? UIView { 24 | 25 | let skip: Bool 26 | if let superview = view.superview { 27 | 28 | if view == (superview as? UITableViewCell)?.contentView || 29 | view == (superview as? UITableViewHeaderFooterView)?.contentView || 30 | view == (superview as? UICollectionViewCell)?.contentView { 31 | skip = true 32 | } else { 33 | skip = false 34 | } 35 | } else { 36 | skip = false 37 | } 38 | 39 | if !skip { 40 | view.translatesAutoresizingMaskIntoConstraints = false 41 | } 42 | } 43 | 44 | if SimplyLayout.postNotificationWhenConstrantCreate { 45 | 46 | let notification = Notification(name: SimplyLayout.constraintCreatedNotification, object: self, userInfo: nil) 47 | NotificationQueue.default.enqueue(notification, postingStyle: .now) 48 | } 49 | 50 | return self 51 | } 52 | } 53 | 54 | 55 | // --------------- 56 | // MARK: - Constants 57 | // --------------- 58 | /* 59 | public extension NSLayoutConstraint { 60 | 61 | // MARK: + 62 | public static func + (lhs: NSLayoutConstraint, rhs: CGFloat) -> NSLayoutConstraint { 63 | 64 | lhs.constant = rhs 65 | return lhs 66 | } 67 | 68 | public static func + (lhs: NSLayoutConstraint, rhs: Double) -> NSLayoutConstraint { 69 | 70 | return lhs + CGFloat(rhs) 71 | } 72 | 73 | public static func + (lhs: NSLayoutConstraint, rhs: Int) -> NSLayoutConstraint { 74 | 75 | return lhs + CGFloat(rhs) 76 | } 77 | 78 | // MARK: - 79 | public static func - (lhs: NSLayoutConstraint, rhs: CGFloat) -> NSLayoutConstraint { 80 | 81 | return lhs + -rhs 82 | } 83 | 84 | public static func - (lhs: NSLayoutConstraint, rhs: Double) -> NSLayoutConstraint { 85 | 86 | return lhs + -rhs 87 | } 88 | 89 | public static func - (lhs: NSLayoutConstraint, rhs: Int) -> NSLayoutConstraint { 90 | 91 | return lhs + -rhs 92 | } 93 | 94 | // MARK: × 95 | public static func * (lhs: NSLayoutConstraint, rhs: CGFloat) -> NSLayoutConstraint { 96 | 97 | if let firstItem = lhs.firstItem { 98 | 99 | let constraint = NSLayoutConstraint( 100 | item: firstItem, 101 | attribute: lhs.firstAttribute, 102 | relatedBy: lhs.relation, 103 | toItem: lhs.secondItem, 104 | attribute: lhs.secondAttribute, 105 | multiplier: rhs, 106 | constant: lhs.constant 107 | ) 108 | constraint.priority = lhs.priority 109 | constraint.isActive = lhs.isActive 110 | 111 | if let view = lhs.ownerView { 112 | 113 | view.removeConstraint(lhs) 114 | view.addConstraint(constraint) 115 | } 116 | return constraint 117 | } 118 | return lhs 119 | } 120 | 121 | public static func * (lhs: NSLayoutConstraint, rhs: Double) -> NSLayoutConstraint { 122 | 123 | return lhs * CGFloat(rhs) 124 | } 125 | 126 | public static func * (lhs: NSLayoutConstraint, rhs: Int) -> NSLayoutConstraint { 127 | 128 | return lhs * CGFloat(rhs) 129 | } 130 | }*/ 131 | 132 | 133 | // --------------- 134 | // MARK: - Priority 135 | // --------------- 136 | /* 137 | public extension NSLayoutConstraint { 138 | 139 | @discardableResult 140 | public static func ~ (lhs: NSLayoutConstraint, rhs: UILayoutPriority) -> NSLayoutConstraint { 141 | 142 | if let firstItem = lhs.firstItem { 143 | 144 | let constraint = NSLayoutConstraint( 145 | item: firstItem, 146 | attribute: lhs.firstAttribute, 147 | relatedBy: lhs.relation, 148 | toItem: lhs.secondItem, 149 | attribute: lhs.secondAttribute, 150 | multiplier: lhs.multiplier, 151 | constant: lhs.constant 152 | ) 153 | constraint.priority = rhs 154 | constraint.isActive = lhs.isActive 155 | 156 | if let view = lhs.ownerView { 157 | 158 | view.removeConstraint(lhs) 159 | view.addConstraint(constraint) 160 | } 161 | return constraint 162 | } 163 | return lhs 164 | } 165 | 166 | @discardableResult 167 | public static func ~ (lhs: NSLayoutConstraint, rhs: Int) -> NSLayoutConstraint { 168 | 169 | return lhs ~ UILayoutPriority(Float(rhs)) 170 | } 171 | 172 | @discardableResult 173 | public static func ~ (lhs: NSLayoutConstraint, rhs: CGFloat) -> NSLayoutConstraint { 174 | 175 | return lhs ~ UILayoutPriority(Float(rhs)) 176 | } 177 | 178 | @discardableResult 179 | public static func ~ (lhs: NSLayoutConstraint, rhs: Double) -> NSLayoutConstraint { 180 | 181 | return lhs ~ UILayoutPriority(Float(rhs)) 182 | } 183 | } 184 | 185 | 186 | extension NSLayoutConstraint { 187 | 188 | fileprivate var ownerView: UIView? { 189 | 190 | var parentView: UIView? = firstItem as? UIView 191 | while true { 192 | if let view = parentView { 193 | if view.constraints.contains(self) { 194 | break 195 | } else { 196 | parentView = view.superview 197 | } 198 | } else { 199 | break 200 | } 201 | } 202 | return parentView 203 | } 204 | }*/ 205 | -------------------------------------------------------------------------------- /Sources/SimplyLayout/Core/NSLayoutDimensionExtension.swift: -------------------------------------------------------------------------------- 1 | // 2 | // NSLayoutDimensionExtension.swift 3 | // SimplyLayout 4 | // 5 | // Created by aipeople on 27/09/2017. 6 | // Copyright © 2017 aipeople. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | 12 | extension NSLayoutDimension { 13 | 14 | // MARK: To anchor 15 | @discardableResult 16 | public static func ==(lhs: NSLayoutDimension, rhs: NSLayoutDimension) -> NSLayoutConstraint { 17 | 18 | return lhs.constraint(equalTo: rhs).setup() 19 | } 20 | 21 | @discardableResult 22 | public static func <=(lhs: NSLayoutDimension, rhs: NSLayoutDimension) -> NSLayoutConstraint { 23 | 24 | return lhs.constraint(lessThanOrEqualTo: rhs).setup() 25 | } 26 | 27 | @discardableResult 28 | public static func >=(lhs: NSLayoutDimension, rhs: NSLayoutDimension) -> NSLayoutConstraint { 29 | 30 | return lhs.constraint(greaterThanOrEqualTo: rhs).setup() 31 | } 32 | 33 | // MARK: To mudified dimension 34 | @discardableResult 35 | public static func ==(lhs: NSLayoutDimension, rhs: AttributedDimension) -> NSLayoutConstraint { 36 | 37 | return lhs.constraint(equalTo: rhs.dimension, multiplier: rhs.multiplier, constant: rhs.constant).setup(withPriority: rhs.priority, activated: rhs.shouldActivate) 38 | } 39 | 40 | @discardableResult 41 | public static func <=(lhs: NSLayoutDimension, rhs: AttributedDimension) -> NSLayoutConstraint { 42 | 43 | return lhs.constraint(lessThanOrEqualTo: rhs.dimension, multiplier: rhs.multiplier, constant: rhs.constant).setup(withPriority: rhs.priority, activated: rhs.shouldActivate) 44 | } 45 | 46 | @discardableResult 47 | public static func >=(lhs: NSLayoutDimension, rhs: AttributedDimension) -> NSLayoutConstraint { 48 | 49 | return lhs.constraint(greaterThanOrEqualTo: rhs.dimension, multiplier: rhs.multiplier, constant: rhs.constant).setup(withPriority: rhs.priority, activated: rhs.shouldActivate) 50 | } 51 | 52 | // MARK: To mudified constant 53 | @discardableResult 54 | public static func ==(lhs: NSLayoutDimension, rhs: AttributedConstant) -> NSLayoutConstraint { 55 | 56 | return lhs.constraint(equalToConstant: rhs.constant).setup(withPriority: rhs.priority, activated: rhs.shouldActivate) 57 | } 58 | 59 | @discardableResult 60 | public static func <=(lhs: NSLayoutDimension, rhs: AttributedConstant) -> NSLayoutConstraint { 61 | 62 | return lhs.constraint(lessThanOrEqualToConstant: rhs.constant).setup(withPriority: rhs.priority, activated: rhs.shouldActivate) 63 | } 64 | 65 | @discardableResult 66 | public static func >=(lhs: NSLayoutDimension, rhs: AttributedConstant) -> NSLayoutConstraint { 67 | 68 | return lhs.constraint(greaterThanOrEqualToConstant: rhs.constant).setup(withPriority: rhs.priority, activated: rhs.shouldActivate) 69 | } 70 | 71 | // MARK: To number 72 | @discardableResult 73 | public static func ==(lhs: NSLayoutDimension, rhs: CGFloat) -> NSLayoutConstraint { 74 | 75 | return lhs.constraint(equalToConstant: rhs).setup() 76 | } 77 | 78 | @discardableResult 79 | public static func <=(lhs: NSLayoutDimension, rhs: CGFloat) -> NSLayoutConstraint { 80 | 81 | return lhs.constraint(lessThanOrEqualToConstant: rhs).setup() 82 | } 83 | 84 | @discardableResult 85 | public static func >=(lhs: NSLayoutDimension, rhs: CGFloat) -> NSLayoutConstraint { 86 | 87 | return lhs.constraint(greaterThanOrEqualToConstant: rhs).setup() 88 | } 89 | 90 | // MARK: Constant 91 | 92 | public static func +(lhs: NSLayoutDimension, rhs: CGFloat) -> AttributedDimension { 93 | 94 | return AttributedDimension(dimension: lhs, multiplier: 1, constant: rhs) 95 | } 96 | 97 | public static func -(lhs: NSLayoutDimension, rhs: CGFloat) -> AttributedDimension { 98 | 99 | return lhs + -rhs 100 | } 101 | 102 | // MARK: Multiplier 103 | 104 | public static func *(lhs: NSLayoutDimension, rhs: CGFloat) -> AttributedDimension { 105 | 106 | return AttributedDimension(dimension: lhs, multiplier: rhs, constant: 0) 107 | } 108 | } 109 | 110 | 111 | extension NSLayoutDimension { 112 | 113 | public static func ~(lhs: NSLayoutDimension, rhs: Float) -> AttributedDimension { 114 | 115 | return lhs ~ UILayoutPriority(rhs) 116 | } 117 | 118 | public static func ~(lhs: NSLayoutDimension, rhs: UILayoutPriority) -> AttributedDimension { 119 | 120 | return AttributedDimension(dimension: lhs, multiplier: 1, constant: 0, priority: rhs) 121 | } 122 | } 123 | 124 | extension NSLayoutDimension { 125 | 126 | public static prefix func --(lhs: NSLayoutDimension) -> AttributedDimension { 127 | 128 | return AttributedDimension(dimension: lhs, multiplier: 1, constant: 0) 129 | } 130 | 131 | public static prefix func ++(lhs: NSLayoutDimension) -> AttributedDimension { 132 | 133 | return AttributedDimension(dimension: lhs, multiplier: 1, constant: 0) 134 | } 135 | } 136 | -------------------------------------------------------------------------------- /Sources/SimplyLayout/Core/SimplyLayout.swift: -------------------------------------------------------------------------------- 1 | // 2 | // SimplyLayout.swift 3 | // SimplyLayout 4 | // 5 | // Created by aipeople on 28/09/2017. 6 | // Copyright © 2017 aipeople. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | 12 | precedencegroup SimplyLayoutPriorityPrecedenceGroup { 13 | higherThan: ComparisonPrecedence 14 | lowerThan: NilCoalescingPrecedence 15 | } 16 | 17 | public class SimplyLayout { 18 | 19 | public static let config = SimplyLayoutConfiguration() 20 | public static var postNotificationWhenConstrantCreate: Bool = false 21 | public static let constraintCreatedNotification = Notification.Name(rawValue: "SimplyLayout.constraintCreatedNotification") 22 | } 23 | 24 | 25 | public class SimplyLayoutConfiguration { 26 | 27 | public var defaultPriority: UILayoutPriority = .required 28 | public var defaultActivation: Bool = true 29 | } 30 | -------------------------------------------------------------------------------- /Sources/SimplyLayout/Group/ConstraintGroup.swift: -------------------------------------------------------------------------------- 1 | // 2 | // ConstraintGroup.swift 3 | // SimplyLayout 4 | // 5 | // Created by Sean, Su on 2019/1/1. 6 | // Copyright © 2019 aipeople. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | 12 | class ConstraintRecorder { 13 | 14 | static let `default` = ConstraintRecorder() 15 | 16 | fileprivate var createdConstraints: NSHashTable? 17 | fileprivate var postConstraintCreationNotificationByDefault: Bool = false 18 | 19 | init() { 20 | 21 | NotificationCenter.default.addObserver( 22 | forName: SimplyLayout.constraintCreatedNotification, object: nil, queue: nil) { 23 | [weak self] (notification) in 24 | 25 | guard let constraint = notification.object as? NSLayoutConstraint else { 26 | return 27 | } 28 | self?.createdConstraints?.add(constraint) 29 | } 30 | } 31 | 32 | func startRecording() { 33 | 34 | createdConstraints = NSHashTable(options: [.weakMemory], capacity: 1) 35 | postConstraintCreationNotificationByDefault = SimplyLayout.postNotificationWhenConstrantCreate 36 | SimplyLayout.postNotificationWhenConstrantCreate = true 37 | } 38 | 39 | func endRecording() { 40 | 41 | SimplyLayout.postNotificationWhenConstrantCreate = postConstraintCreationNotificationByDefault 42 | createdConstraints = nil 43 | } 44 | } 45 | 46 | 47 | extension Array where Element == NSLayoutConstraint { 48 | 49 | public func activateAll() { 50 | for constraint in self { 51 | constraint.isActive = true 52 | } 53 | } 54 | 55 | public func deactivateAll() { 56 | for constraint in self { 57 | constraint.isActive = false 58 | } 59 | } 60 | } 61 | 62 | 63 | extension NSLayoutConstraint { 64 | 65 | public class func group(activated: Bool = SimplyLayout.config.defaultActivation, _ action: () -> ()) -> [NSLayoutConstraint] { 66 | 67 | assert(Thread.isMainThread, "Constraint group must be created on main thread") 68 | 69 | let originActivation = SimplyLayout.config.defaultActivation 70 | 71 | ConstraintRecorder.default.startRecording() 72 | SimplyLayout.config.defaultActivation = activated 73 | defer { 74 | ConstraintRecorder.default.endRecording() 75 | SimplyLayout.config.defaultActivation = originActivation 76 | } 77 | 78 | action() 79 | return ConstraintRecorder.default.createdConstraints?.allObjects ?? [] 80 | } 81 | } 82 | -------------------------------------------------------------------------------- /Sources/SimplyLayout/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | FMWK 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | $(CURRENT_PROJECT_VERSION) 21 | NSPrincipalClass 22 | 23 | 24 | 25 | -------------------------------------------------------------------------------- /Sources/SimplyLayout/SimplyLayout.h: -------------------------------------------------------------------------------- 1 | // 2 | // SimplyLayout.h 3 | // SimplyLayout 4 | // 5 | // Created by aipeople on 15/09/2017. 6 | // Copyright © 2017 aipeople. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | //! Project version number for SimplyLayout. 12 | FOUNDATION_EXPORT double SimplyLayoutVersionNumber; 13 | 14 | //! Project version string for SimplyLayout. 15 | FOUNDATION_EXPORT const unsigned char SimplyLayoutVersionString[]; 16 | 17 | // In this header, you should import all the public headers of your framework using statements like #import 18 | 19 | 20 | -------------------------------------------------------------------------------- /Sources/SimplyLayoutDemo/AppDelegate.swift: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.swift 3 | // SimplyLayoutDemo 4 | // 5 | // Created by aipeople on 15/09/2017. 6 | // Copyright © 2017 aipeople. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | @UIApplicationMain 12 | class AppDelegate: UIResponder, UIApplicationDelegate { 13 | 14 | var window: UIWindow? 15 | 16 | 17 | func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { 18 | // Override point for customization after application launch. 19 | return true 20 | } 21 | 22 | func applicationWillResignActive(_ application: UIApplication) { 23 | // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state. 24 | // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game. 25 | } 26 | 27 | func applicationDidEnterBackground(_ application: UIApplication) { 28 | // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 29 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 30 | } 31 | 32 | func applicationWillEnterForeground(_ application: UIApplication) { 33 | // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background. 34 | } 35 | 36 | func applicationDidBecomeActive(_ application: UIApplication) { 37 | // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface. 38 | } 39 | 40 | func applicationWillTerminate(_ application: UIApplication) { 41 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 42 | } 43 | 44 | 45 | } 46 | 47 | -------------------------------------------------------------------------------- /Sources/SimplyLayoutDemo/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "size" : "20x20", 6 | "scale" : "2x" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "size" : "20x20", 11 | "scale" : "3x" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "size" : "29x29", 16 | "scale" : "2x" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "size" : "29x29", 21 | "scale" : "3x" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "size" : "40x40", 26 | "scale" : "2x" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "size" : "40x40", 31 | "scale" : "3x" 32 | }, 33 | { 34 | "idiom" : "iphone", 35 | "size" : "60x60", 36 | "scale" : "2x" 37 | }, 38 | { 39 | "idiom" : "iphone", 40 | "size" : "60x60", 41 | "scale" : "3x" 42 | }, 43 | { 44 | "idiom" : "ipad", 45 | "size" : "20x20", 46 | "scale" : "1x" 47 | }, 48 | { 49 | "idiom" : "ipad", 50 | "size" : "20x20", 51 | "scale" : "2x" 52 | }, 53 | { 54 | "idiom" : "ipad", 55 | "size" : "29x29", 56 | "scale" : "1x" 57 | }, 58 | { 59 | "idiom" : "ipad", 60 | "size" : "29x29", 61 | "scale" : "2x" 62 | }, 63 | { 64 | "idiom" : "ipad", 65 | "size" : "40x40", 66 | "scale" : "1x" 67 | }, 68 | { 69 | "idiom" : "ipad", 70 | "size" : "40x40", 71 | "scale" : "2x" 72 | }, 73 | { 74 | "idiom" : "ipad", 75 | "size" : "76x76", 76 | "scale" : "1x" 77 | }, 78 | { 79 | "idiom" : "ipad", 80 | "size" : "76x76", 81 | "scale" : "2x" 82 | }, 83 | { 84 | "idiom" : "ipad", 85 | "size" : "83.5x83.5", 86 | "scale" : "2x" 87 | } 88 | ], 89 | "info" : { 90 | "version" : 1, 91 | "author" : "xcode" 92 | } 93 | } -------------------------------------------------------------------------------- /Sources/SimplyLayoutDemo/Base.lproj/LaunchScreen.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /Sources/SimplyLayoutDemo/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | -------------------------------------------------------------------------------- /Sources/SimplyLayoutDemo/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | 1 21 | LSRequiresIPhoneOS 22 | 23 | UILaunchStoryboardName 24 | LaunchScreen 25 | UIMainStoryboardFile 26 | Main 27 | UIRequiredDeviceCapabilities 28 | 29 | armv7 30 | 31 | UISupportedInterfaceOrientations 32 | 33 | UIInterfaceOrientationPortrait 34 | UIInterfaceOrientationLandscapeLeft 35 | UIInterfaceOrientationLandscapeRight 36 | 37 | UISupportedInterfaceOrientations~ipad 38 | 39 | UIInterfaceOrientationPortrait 40 | UIInterfaceOrientationPortraitUpsideDown 41 | UIInterfaceOrientationLandscapeLeft 42 | UIInterfaceOrientationLandscapeRight 43 | 44 | 45 | 46 | -------------------------------------------------------------------------------- /Sources/SimplyLayoutDemo/ViewController.swift: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.swift 3 | // SimplyLayoutDemo 4 | // 5 | // Created by aipeople on 15/09/2017. 6 | // Copyright © 2017 aipeople. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | import SimplyLayout 11 | 12 | class ViewController: UIViewController { 13 | 14 | override func viewDidLoad() { 15 | 16 | super.viewDidLoad() 17 | 18 | let background = UIView() 19 | background.backgroundColor = .lightGray 20 | 21 | view.addSubview(background) 22 | background.edgeAnchor == background.superview!.edgeAnchor + UIEdgeInsets(top: 10, left: 20, bottom: 10, right: 20) 23 | 24 | 25 | let boxA = UIView() 26 | let boxB = UIView() 27 | view.addSubview(boxA) 28 | view.addSubview(boxB) 29 | 30 | boxA.backgroundColor = .red 31 | boxB.backgroundColor = .orange 32 | 33 | let verticalConstraintGroup = NSLayoutConstraint.group { 34 | 35 | boxA.centerXAnchor == boxA.superview!.centerXAnchor 36 | boxB.centerXAnchor == boxB.superview!.centerXAnchor 37 | 38 | boxA.heightAnchor == boxB.heightAnchor 39 | boxA.widthAnchor == 40 40 | boxB.widthAnchor == 40 41 | 42 | boxA.topAnchor == boxA.superview!.topAnchor + 10 43 | boxB.topAnchor == boxA.bottomAnchor + 10 44 | boxB.bottomAnchor == boxB.superview!.bottomAnchor - 10 45 | } 46 | 47 | let horizontalConstraintGroup = NSLayoutConstraint.group(activated: false) { 48 | 49 | boxA.centerYAnchor == boxA.superview!.centerYAnchor 50 | boxB.centerYAnchor == boxB.superview!.centerYAnchor 51 | 52 | boxA.widthAnchor == boxB.widthAnchor 53 | boxA.heightAnchor == 40 54 | boxB.heightAnchor == 40 55 | 56 | boxA.leftAnchor == boxA.superview!.leftAnchor + 10 57 | boxB.leftAnchor == boxA.rightAnchor + 10 58 | boxB.rightAnchor == boxB.superview!.rightAnchor - 10 59 | } 60 | 61 | 62 | let box = UIView() 63 | box.backgroundColor = .lightGray 64 | view.addSubview(box) 65 | 66 | // Setup globally configs 67 | // Basically, configs should be set in `didFinishLaunchingWithOptions:` 68 | //SimplyLayout.config.defaultActivation = true // Default value is `true` 69 | //SimplyLayout.config.defaultPriority = .required // Default value is `.required` 70 | 71 | // Setup a constraint with constant by using `+` or `-` 72 | box.widthAnchor == 100 // The constant can be Int, Double, CGFloat 73 | 74 | // Setup a constraint with mutiplier by using `*` 75 | box.heightAnchor == box.superview!.heightAnchor * 0.25 + 40 76 | 77 | // Setup a constraint with priority by using `~` 78 | box.heightAnchor == box.superview!.heightAnchor * 0.25 ~ 750 79 | 80 | // Setup a constraint with activate or inactivate state by using `--` or `++` 81 | box.centerXAnchor == box.superview!.centerXAnchor ~ 750 // The constraint will be activated based on the value of `defaultActivation` in configs. 82 | box.centerXAnchor == --box.superview!.centerXAnchor + 100 // This will force the constraint stays in inactive mode after created. 83 | 84 | // Store the created constraint 85 | let centerYConstraint = box.centerYAnchor == box.superview!.centerYAnchor 86 | 87 | // Modify the stored constraint 88 | DispatchQueue.global().async { 89 | sleep(3) 90 | DispatchQueue.main.async { 91 | 92 | UIView.animate(withDuration: 0.5, animations: { 93 | centerYConstraint.constant = 100 94 | verticalConstraintGroup.deactivateAll() 95 | horizontalConstraintGroup.activateAll() 96 | self.view.layoutIfNeeded() 97 | }) 98 | } 99 | } 100 | } 101 | 102 | override func didReceiveMemoryWarning() { 103 | super.didReceiveMemoryWarning() 104 | // Dispose of any resources that can be recreated. 105 | } 106 | 107 | 108 | } 109 | 110 | -------------------------------------------------------------------------------- /Tests/SimplyLayoutTests/Test.swift: -------------------------------------------------------------------------------- 1 | // 2 | // Test.swift 3 | // SimplyLayout 4 | // 5 | // Created by aipeople on 15/09/2017. 6 | // Copyright © 2017 aipeople. All rights reserved. 7 | // 8 | 9 | import Foundation 10 | 11 | public class Test { 12 | 13 | init() { 14 | 15 | } 16 | } 17 | --------------------------------------------------------------------------------