first commit

.gitignore

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+# Xcode
+#
+# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
+
+# Mac
+.DS_Store
+
+## Build generated
+build/
+DerivedData/
+
+## Various settings
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata/
+
+## Other
+*.moved-aside
+*.xcuserstate
+
+## Obj-C/Swift specific
+*.hmap
+*.ipa
+*.dSYM.zip
+*.dSYM
+
+## Playgrounds
+timeline.xctimeline
+playground.xcworkspace
+
+# Swift Package Manager
+#
+# Add this line if you want to avoid checking in source code from Swift Package Manager dependencies.
+# Packages/
+.build/
+
+# CocoaPods
+#
+# We recommend against adding the Pods directory to your .gitignore. However
+# you should judge for yourself, the pros and cons are mentioned at:
+# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
+#
+# Pods/
+
+# Carthage
+#
+# Add this line if you want to avoid checking in source code from Carthage dependencies.
+# Carthage/Checkouts
+
+Carthage/Build
+
+# fastlane
+#
+# It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the
+# screenshots whenever they are needed.
+# For more information about the recommended setup visit:
+# https://github.com/fastlane/fastlane/blob/master/fastlane/docs/Gitignore.md
+
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots
+fastlane/test_output

.swift-version

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+3.0.2

AutoToggleHeaderFooterView.podspec

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+Pod::Spec.new do |s|
+  s.name        = 'AutoToggleHeaderFooterView'
+  s.version     = '1.0.0'
+  s.summary     = 'A header and footer toggle display-state depending on the scroll or time interval'
+  s.homepage    = 'https://github.com/recruit-lifestyle/AutoToggleHeaderFooterView'
+  s.license     = 'Apache License, Version 2.0'
+  s.author      = { 'Tomoya Hayakawa' => 'rhd_internship_ER5@r.recruit.co.jp' }
+  s.source      = { :git => 'https://github.com/recruit-lifestyle/AutoToggleHeaderFooterView.git', :tag => s.version.to_s }
+
+  s.ios.deployment_target = '8.0'
+  s.platform = :ios, '8.0'
+
+  s.source_files = 'AutoToggleHeaderFooterView/Classes/**/*'
+end

AutoToggleHeaderFooterView/Classes/Constraint.swift

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+//
+//  Constraint.swift
+//  Pods
+//
+//  Created by Tomoya Hayakawa on 2017/03/01.
+//  Copyright (c) 2017 RECRUIT LIFESTYLE CO., LTD. All rights reserved.
+//
+
+import UIKit
+
+struct Constraint {
+    static func make(_ view1: Any, _ attr1: NSLayoutAttribute, _ relation: NSLayoutRelation, to view2: Any?, _ attr2: NSLayoutAttribute, multiplier: CGFloat = 1.0, constant c: CGFloat = 0, priority: UILayoutPriority? = nil) -> NSLayoutConstraint {
+        let constraint = NSLayoutConstraint(item: view1, attribute: attr1, relatedBy: relation,
+                                            toItem: view2, attribute: attr2, multiplier: multiplier, constant: c)
+        if let priority = priority {
+            constraint.priority = priority
+        }
+
+        return constraint
+    }
+
+    static func make(_ view1: Any, edgesEqualTo view2: Any, multiplier: CGFloat = 1.0, priority: UILayoutPriority? = nil) -> [NSLayoutConstraint] {
+        let constraints = [
+            NSLayoutConstraint(item: view1, attribute: .top, relatedBy: .equal, toItem: view2, attribute: .top, multiplier: multiplier, constant: 0),
+            NSLayoutConstraint(item: view1, attribute: .left, relatedBy: .equal, toItem: view2, attribute: .left, multiplier: multiplier, constant: 0),
+            NSLayoutConstraint(item: view1, attribute: .bottom, relatedBy: .equal, toItem: view2, attribute: .bottom, multiplier: multiplier, constant: 0),
+            NSLayoutConstraint(item: view1, attribute: .right, relatedBy: .equal, toItem: view2, attribute: .right, multiplier: multiplier, constant: 0)
+        ]
+        if let priority = priority {
+            constraints.forEach { $0.priority = priority }
+        }
+
+        return constraints 
+    }
+
+    static func make(_ view: Any, width relation: NSLayoutRelation, to constant: CGFloat, priority: UILayoutPriority? = nil) -> NSLayoutConstraint {
+        let constraint = NSLayoutConstraint(item: view, attribute: .width, relatedBy: relation, toItem: nil, attribute: .width, multiplier: 1.0, constant: constant)
+        if let priority = priority {
+            constraint.priority = priority
+        }
+
+        return constraint
+    }
+
+    static func make(_ view: Any, height relation: NSLayoutRelation, to constant: CGFloat, priority: UILayoutPriority? = nil) -> NSLayoutConstraint {
+        let constraint = NSLayoutConstraint(item: view, attribute: .height, relatedBy: relation, toItem: nil, attribute: .height, multiplier: 1.0, constant: constant)
+        if let priority = priority {
+            constraint.priority = priority
+        }
+
+        return constraint
+    }
+}