Merge branch 'swift-4.2' into 'master'

Swift 4.2

See merge request helper-ios/RMRPullToRefresh!5

Classes/RMRPullToRefresh.swift

@@ -10,7 +10,7 @@ import UIKit
 
 open class RMRPullToRefresh: NSObject {
 
-    fileprivate var сontroller: RMRPullToRefreshController?
+    private var сontroller: RMRPullToRefreshController?
     
     open var height : CGFloat = RMRPullToRefreshConstants.DefaultHeight {
         didSet {
@@ -46,14 +46,6 @@ open class RMRPullToRefresh: NSObject {
         self.сontroller = controller
     }
     
-    /// Метод нужно вызывать в deinit экрана, в котором используется pull-to-refresh.
-    ///
-    /// Это временное решение для избежания краша из-за KVO-наблюдателей на scroll view
-    /// (при уничтожении скролла и экрана, в котором он лежит).
-    open func unsubscribeFromBindings() {
-        сontroller?.unsubscribeFromScrollViewEvents()
-    }
-    
     open func configureView(_ view :RMRPullToRefreshView, state:RMRPullToRefreshState, result:RMRPullToRefreshResultType) {
         сontroller?.configureView(view, state: state, result: result)
     }

Classes/RMRPullToRefreshConstants.swift

@@ -27,14 +27,6 @@ public enum RMRPullToRefreshResultType: Int {
 
 public struct RMRPullToRefreshConstants {
     
-    struct KeyPaths {
-        static let ContentOffset = "contentOffset"
-        static let ContentSize = "contentSize"
-        static let ContentInset = "contentInset"
-        static let PanState = "pan.state"
-        static let Frame = "frame"
-    }
-    
     static let DefaultHeight = CGFloat(90.0)
     static let DefaultBackgroundColor = UIColor.white
 }

Classes/RMRPullToRefreshController.swift

@@ -7,26 +7,6 @@
 //
 
 import UIKit
-fileprivate func < <T : Comparable>(lhs: T?, rhs: T?) -> Bool {
-  switch (lhs, rhs) {
-  case let (l?, r?):
-    return l < r
-  case (nil, _?):
-    return true
-  default:
-    return false
-  }
-}
-
-fileprivate func > <T : Comparable>(lhs: T?, rhs: T?) -> Bool {
-  switch (lhs, rhs) {
-  case let (l?, r?):
-    return l > r
-  default:
-    return rhs < lhs
-  }
-}
-
 
 open class RMRPullToRefreshController {
 
@@ -41,7 +21,6 @@ open class RMRPullToRefreshController {
     var backgroundViewTopConstraint: NSLayoutConstraint?
     
     var stopped = true
-    var subscribing = false
     
     var actionHandler: (() -> Void)!
     
@@ -60,6 +39,12 @@ open class RMRPullToRefreshController {
     
     open var hideWhenError: Bool = true
     
+    // MARK: - Observation
+    
+    private var contentOffsetObservation: NSKeyValueObservation?
+    private var contentSizeObservation: NSKeyValueObservation?
+    private var panStateObservation: NSKeyValueObservation?
+    
     // MARK: - Init
     
     init(scrollView: UIScrollView, position:RMRPullToRefreshPosition, actionHandler: @escaping () -> Void) {
@@ -76,30 +61,36 @@ open class RMRPullToRefreshController {
         self.subscribeOnScrollViewEvents()
     }
     
-    fileprivate func configureBackgroundView(_ backgroundView: UIView) {
+    private func configureBackgroundView(_ backgroundView: UIView) {
         backgroundView.translatesAutoresizingMaskIntoConstraints = false
         scrollView?.addSubview(backgroundView)
         addBackgroundViewConstraints(backgroundView)
     }
     
-    fileprivate func addBackgroundViewConstraints(_ backgroundView: UIView) {
+    private func addBackgroundViewConstraints(_ backgroundView: UIView) {
-        // Constraints
+        guard let scrollView = scrollView, let position = position else {
-        self.backgroundViewHeightConstraint = NSLayoutConstraint(item: backgroundView, attribute: NSLayoutConstraint.Attribute.height, relatedBy: NSLayoutConstraint.Relation.equal, toItem: nil, attribute: NSLayoutConstraint.Attribute.notAnAttribute, multiplier: 1, constant: 0)
+            return
-        backgroundView.addConstraint(self.backgroundViewHeightConstraint!)
+        }
     
-        scrollView?.addConstraint(NSLayoutConstraint(item: backgroundView, attribute: NSLayoutConstraint.Attribute.width, relatedBy: NSLayoutConstraint.Relation.equal, toItem: scrollView, attribute: NSLayoutConstraint.Attribute.width, multiplier: 1, constant: 0))
+        let backgroundViewHeightConstraint = backgroundView.heightAnchor.constraint(equalToConstant: 0)
+        backgroundViewHeightConstraint.isActive = true
+        self.backgroundViewHeightConstraint = backgroundViewHeightConstraint
         
-        if position == .top {
+        backgroundView.widthAnchor.constraint(equalTo: scrollView.widthAnchor).isActive = true
-            scrollView?.addConstraint(NSLayoutConstraint(item: backgroundView, attribute: NSLayoutConstraint.Attribute.bottom, relatedBy: NSLayoutConstraint.Relation.equal, toItem: scrollView, attribute: NSLayoutConstraint.Attribute.top, multiplier: 1, constant: 0))
+        
-        } else if position == .bottom, let scrollView = self.scrollView {
+        switch position {
+        case .top:
+            backgroundView.bottomAnchor.constraint(equalTo: scrollView.topAnchor).isActive = true
+        case .bottom:
             let constant = max(scrollView.contentSize.height, scrollView.bounds.height)
-            self.backgroundViewTopConstraint = NSLayoutConstraint(item: backgroundView, attribute: NSLayoutConstraint.Attribute.top, relatedBy: NSLayoutConstraint.Relation.equal, toItem: scrollView, attribute: NSLayoutConstraint.Attribute.top, multiplier: 1, constant: constant)
+            let backgroundViewTopConstraint = backgroundView.topAnchor.constraint(
-            scrollView.addConstraint(self.backgroundViewTopConstraint!)
+                equalTo: scrollView.bottomAnchor, constant: constant)
+            backgroundViewTopConstraint.isActive = true
+            self.backgroundViewTopConstraint = backgroundViewTopConstraint
         }
     }
     
-    fileprivate func configureHeight() {
+    private func configureHeight() {
-        
         if let scrollView = self.scrollView {
             self.originalTopInset = scrollView.contentInset.top
             self.originalBottomInset = scrollView.contentInset.bottom
@@ -227,23 +218,23 @@ open class RMRPullToRefreshController {
         containerView.startLoadingAnimation(startProgress)
     }
     
-    @objc fileprivate func stopAllAnimations() {
+    @objc private func stopAllAnimations() {
         if shouldHideWhenStopLoading() {
             stopped = true
         }
         containerView.stopAllAnimations(shouldHideWhenStopLoading())
     }
     
-    @objc fileprivate func forceStopAllAnimations() {
+    @objc private func forceStopAllAnimations() {
         stopped = true
         containerView.stopAllAnimations(true)
     }
     
-    @objc fileprivate func resetBackgroundViewHeightConstraint() {
+    @objc private func resetBackgroundViewHeightConstraint() {
         backgroundViewHeightConstraint?.constant = 0
     }
     
-    fileprivate func scrollViewDidChangePanState(_ scrollView: UIScrollView, panState: UIGestureRecognizer.State) {
+    private func scrollViewDidChangePanState(_ scrollView: UIScrollView, panState: UIGestureRecognizer.State) {
         if panState == .ended || panState == .cancelled || panState == .failed {
             
             if state == .loading || (shouldHideWhenStopLoading() && !stopped) {
@@ -274,7 +265,7 @@ open class RMRPullToRefreshController {
         }
     }
     
-    fileprivate func scrollViewDidChangeContentSize(_ scrollView: UIScrollView, contentSize: CGSize) {
+    private func scrollViewDidChangeContentSize(_ scrollView: UIScrollView, contentSize: CGSize) {
         updateContainerFrame()
         if position == .bottom {
             self.backgroundViewTopConstraint?.constant = max(scrollView.contentSize.height, scrollView.bounds.height)
@@ -284,7 +275,7 @@ open class RMRPullToRefreshController {
         }
     }
     
-    fileprivate func scrollViewDidScroll(_ scrollView: UIScrollView, contentOffset: CGPoint) {
+    private func scrollViewDidScroll(_ scrollView: UIScrollView, contentOffset: CGPoint) {
         
         if state == .loading {
             if scrollView.contentOffset.y >= 0  {
@@ -316,15 +307,17 @@ open class RMRPullToRefreshController {
         }
     }
     
-    fileprivate func configureBackgroundHeightConstraint(_ contentOffsetY: CGFloat, contentInset: UIEdgeInsets) {
+    private func configureBackgroundHeightConstraint(_ contentOffsetY: CGFloat, contentInset: UIEdgeInsets) {
         var constant = CGFloat(-1.0)
         if position == .top {
             constant = contentOffsetY + contentInset.top
         } else {
             constant = contentOffsetY + contentInset.bottom
         }
-        if constant > 0 && constant > backgroundViewHeightConstraint?.constant {
+        if let backgroundViewHeightConstraint = backgroundViewHeightConstraint,
-            backgroundViewHeightConstraint?.constant = constant
+            constant > 0,
+            constant > backgroundViewHeightConstraint.constant {
+            backgroundViewHeightConstraint.constant = constant
         }
     }
     
@@ -394,33 +387,35 @@ open class RMRPullToRefreshController {
     
     // MARK: - KVO
 
-    var contentOffsetObservation: NSKeyValueObservation?
-    var contentSizeObservation: NSKeyValueObservation?
-
     open func subscribeOnScrollViewEvents() {
-        guard let scrollView = self.scrollView else { return }
+        guard let scrollView = scrollView else {
-        
+            return
-        contentOffsetObservation = scrollView.observe(\.contentOffset, options: .new) { [weak self] scrollView, changes in
-            guard let newContentOffset = changes.newValue else { return }
-            self?.scrollViewDidScroll(scrollView, contentOffset: newContentOffset)
         }
         
-        contentSizeObservation = scrollView.observe(\.contentSize, options: .new) { [weak self] scrollView, changes in
+        self.contentOffsetObservation = scrollView.observe(
-            guard let newContentSize = changes.newValue else { return }
+            \.contentOffset,
-            self?.scrollViewDidChangeContentSize(scrollView, contentSize: newContentSize)
+            options: [.new]) { [weak self] (scrollView, change) in
+                guard let newContentOffset = change.newValue else { return }
+                self?.scrollViewDidScroll(scrollView, contentOffset: newContentOffset)
         }
         
-        self.scrollView?.panGestureRecognizer.addTarget(self, action: #selector(onPanGesture))
+        self.contentSizeObservation = scrollView.observe(
-    }
+            \.contentSize,
+            options: [.new]) { [weak self] (scrollView, change) in
+                guard let newContentSize = change.newValue else { return }
+                self?.scrollViewDidChangeContentSize(scrollView, contentSize: newContentSize)
+        }
         
-    @objc func onPanGesture(gesture: UIPanGestureRecognizer) {
+        self.panStateObservation = scrollView.panGestureRecognizer.observe(
-        guard let scrollView = self.scrollView else { return }
+            \.state,
-        scrollViewDidChangePanState(scrollView, panState: gesture.state)
+            options: [.new]) { [weak self] panGestureRecognizer, _ in
+                self?.scrollViewDidChangePanState(scrollView, panState: panGestureRecognizer.state)
+        }
     }
     
     open func unsubscribeFromScrollViewEvents() {
-        contentOffsetObservation = nil
+        contentOffsetObservation?.invalidate()
-        contentSizeObservation = nil
+        contentSizeObservation?.invalidate()
+        panStateObservation?.invalidate()
     }
-    
 }

Example/Podfile

@@ -1,8 +1,11 @@
 source 'https://github.com/CocoaPods/Specs.git'
 
+platform :ios, '9.0'
 use_frameworks!
 
-target 'RMRPullToRefreshExample' do
+project 'RMRPullToRefreshExample.xcodeproj'
-    project 'RMRPullToRefreshExample.xcodeproj'
+workspace 'RMRPullToRefreshExample.xcworkspace'
-	pod 'RMRPullToRefresh’, :path => "../"
+
+target :RMRPullToRefreshExample do
+	pod 'RMRPullToRefresh', :path => "../"
 end

Example/Podfile.lock

@@ -0,0 +1,16 @@
+PODS:
+  - RMRPullToRefresh (0.5.0)
+
+DEPENDENCIES:
+  - RMRPullToRefresh (from `../`)
+
+EXTERNAL SOURCES:
+  RMRPullToRefresh:
+    :path: ../
+
+SPEC CHECKSUMS:
+  RMRPullToRefresh: 6c25f48af80d0e5d72b89ef5d6ea0dfcc21e5444
+
+PODFILE CHECKSUM: 6bf08c33e827c034420f4dcfc61024a8ba7eab2f
+
+COCOAPODS: 1.3.1

Example/RMRPullToRefresh/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -1,5 +1,15 @@
 {
   "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
     {
       "idiom" : "iphone",
       "size" : "29x29",
@@ -29,6 +39,11 @@
       "idiom" : "iphone",
       "size" : "60x60",
       "scale" : "3x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
     }
   ],
   "info" : {

Example/RMRPullToRefresh/Base.lproj/Main.storyboard

@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14313.18" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="9wl-A7-LQ4">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13771" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="9wl-A7-LQ4">
     <device id="retina4_7" orientation="portrait">
         <adaptation id="fullscreen"/>
     </device>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14283.14"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13772"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
@@ -24,7 +24,7 @@
                 </navigationController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="jEm-VL-aI5" userLabel="First Responder" sceneMemberID="firstResponder"/>
             </objects>
-            <point key="canvasLocation" x="-654" y="323"/>
+            <point key="canvasLocation" x="-503" y="323"/>
         </scene>
         <!--Table View Controller-->
         <scene sceneID="xmD-iM-370">
@@ -315,7 +315,7 @@
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
             </objects>
-            <point key="canvasLocation" x="1011" y="324"/>
+            <point key="canvasLocation" x="1111" y="323"/>
         </scene>
     </scenes>
     <resources>

Example/RMRPullToRefresh/TableViewController.swift

@@ -8,8 +8,7 @@
 
 import UIKit
 
-class TableViewController: UITableViewController {
+final class TableViewController: UITableViewController {
-
 
     override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
         super.prepare(for: segue, sender: sender)

Example/RMRPullToRefresh/ViewController.swift

@@ -18,20 +18,48 @@ public enum ExampleType: Int {
     case redmadrobotBottom
 }
 
-class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate, UIActionSheetDelegate {
+final class ViewController: UIViewController {
 
-    @IBOutlet weak var tableView: UITableView!
+    // MARK: - Public properties
     
     var exampleType: ExampleType = .beelineBottom
     
-    var pullToRefresh: RMRPullToRefresh?
+    // MARK: - Private properites
     
-    let formatter = DateFormatter()
+    private var pullToRefresh: RMRPullToRefresh?
+    private let formatter = DateFormatter()
+    private var items: [String] = []
+    private var count = 2
+    private var result = RMRPullToRefreshResultType.success
     
-    var items: [String] = []
+    // MARK: - IBOutlets
-    var count = 2
     
-    var result = RMRPullToRefreshResultType.success
+    @IBOutlet weak var tableView: UITableView!
+    
+    // MARK: - IBActions
+    
+    @IBAction func settings(_ sender: AnyObject) {
+        let alertController = UIAlertController(title: "Result type", message: nil, preferredStyle: .actionSheet)
+        
+        let successAction = UIAlertAction(title: "Success", style: .default) { _ in
+            self.result = .noUpdates
+        }
+        alertController.addAction(successAction)
+        
+        let noUpdatesAction = UIAlertAction(title: "No updates", style: .default) { _ in
+            self.result = .noUpdates
+        }
+        alertController.addAction(noUpdatesAction)
+        
+        let errorAction = UIAlertAction(title: "Error", style: .default) { _ in
+            self.result = .error
+        }
+        alertController.addAction(errorAction)
+        
+        present(alertController, animated: true, completion: nil)
+    }
+    
+    // MARK: - UIViewController
     
     override func viewDidLoad() {
         super.viewDidLoad()
@@ -44,51 +72,47 @@ class ViewController: UIViewController, UITableViewDataSource, UITableViewDelega
     
     // MARK: - Pull to Refresh
     
-    func configurePullToRefresh() {
+    private func configurePullToRefresh() {
-        
+        pullToRefresh = RMRPullToRefresh(scrollView: tableView, position: position()) { [weak self] in
-        pullToRefresh = RMRPullToRefresh(
+            DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 5, execute: {
-            scrollView: tableView,
+                if self?.result == .success {
-            position: position()) { [weak self] in
+                    self?.loadMore()
-                DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + Double(Int64(5.0 * Double(NSEC_PER_SEC))) / Double(NSEC_PER_SEC), execute: {
+                }
-                    if self?.result == .success {
+                if let result = self?.result {
-                        self?.loadMore()
+                    self?.pullToRefresh?.stopLoading(result)
-                    }
+                }
-                    if let result = self?.result {
+            })
-                        self?.pullToRefresh?.stopLoading(result)
-                    }
-                })
         }
         
-        if exampleType == .perekrestokTop || exampleType == .perekrestokBottom {
+        switch exampleType {
+        case .perekrestokTop, .perekrestokBottom:
             perekrestok()
-        } else if exampleType == .beelineTop || exampleType == .beelineBottom {
+        case .beelineTop, .beelineBottom:
             beeline()
-        } else if exampleType == .redmadrobotTop || exampleType == .redmadrobotBottom {
+        case .redmadrobotTop, .redmadrobotBottom:
             redmadrobot()
         }
         
-        pullToRefresh?.setHideDelay(5.0, result: .success)
+        //pullToRefresh?.setHideDelay(5.0, result: .success)
-        
+        //pullToRefresh?.hideWhenError = false
-        pullToRefresh?.hideWhenError = false
     }
     
     // MARK: - Build example values
     
-    func perekrestok() {
+    private func perekrestok() {
-        
         if let pullToRefreshView = PerekrestokView.XIB_VIEW() {
             pullToRefresh?.configureView(pullToRefreshView, state: .dragging, result: .success)
             pullToRefresh?.configureView(pullToRefreshView, state: .loading, result: .success)
         }
         pullToRefresh?.height = 90.0
-        pullToRefresh?.backgroundColor = UIColor(red: 16.0/255.0,
+        pullToRefresh?.backgroundColor = UIColor(
-                                                 green: 192.0/255.0,
+            red: 16.0/255.0,
-                                                 blue: 119.0/255.0,
+            green: 192.0/255.0,
-                                                 alpha: 1.0)
+            blue: 119.0/255.0,
+            alpha: 1.0)
     }
     
-    func beeline() {
+    private func beeline() {
-        
         if let pullToRefreshView = BeelineView.XIB_VIEW() {
             pullToRefresh?.configureView(pullToRefreshView, state: .dragging, result: .success)
             pullToRefresh?.configureView(pullToRefreshView, state: .loading, result: .success)
@@ -97,11 +121,11 @@ class ViewController: UIViewController, UITableViewDataSource, UITableViewDelega
         pullToRefresh?.backgroundColor = UIColor.white
     }
     
-    func redmadrobot() {
+    private func redmadrobot() {
         pullToRefresh?.setupDefaultSettings()
     }
     
-    func position() -> RMRPullToRefreshPosition {
+    private func position() -> RMRPullToRefreshPosition {
         if exampleType == .perekrestokTop || exampleType == .beelineTop || exampleType == .redmadrobotTop {
             return .top
         }
@@ -110,49 +134,29 @@ class ViewController: UIViewController, UITableViewDataSource, UITableViewDelega
     
     // MARK: - Configure
     
-    func someConfiguring() {
+    private func someConfiguring() {
         formatter.dateStyle = DateFormatter.Style.long
         formatter.timeStyle = .medium
     }
     
-    // MARK: - Action
-    
-    
-    @IBAction func settings(_ sender: AnyObject) {
-        UIActionSheet(title: "Result type", delegate: self, cancelButtonTitle: nil, destructiveButtonTitle: nil, otherButtonTitles: ".Success", ".NoUpdates", ".Error").show(in: self.view)
-    }
-    
-    // MARK: - UIActionSheetDelegate
-    
-    func actionSheet(_ actionSheet: UIActionSheet, clickedButtonAt buttonIndex: Int) {
-        switch buttonIndex {
-        case 0:
-            self.result = .success
-        case 1:
-            self.result = .noUpdates
-        case 2:
-            self.result = .error
-        default:
-            break;
-        }
-    }
-    
     // MARK: - Test data
     
-    func loadData() {
+    private func loadData() {
         for _ in 0...count {
             items.append(formatter.string(from: Date()))
         }
     }
     
-    func loadMore() {
+    private func loadMore() {
         for _ in 0...20 {
             self.items.append(formatter.string(from: Date(timeIntervalSinceNow: 20)))
         }
         self.tableView.reloadData()
     }
+}
 
-    // MARK: - TableView
+// MARK: - UITableViewDataSource
+extension ViewController: UITableViewDataSource {
     
     func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
         let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
@@ -168,4 +172,3 @@ class ViewController: UIViewController, UITableViewDataSource, UITableViewDelega
         return 1;
     }
 }
-

Example/RMRPullToRefreshExample.xcodeproj/project.pbxproj

@@ -148,14 +148,13 @@
 		89CB122C1C9DA07B00048E46 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastSwiftUpdateCheck = 1000;
+				LastSwiftUpdateCheck = 0720;
 				LastUpgradeCheck = 1000;
 				ORGANIZATIONNAME = "Merkulov Ilya";
 				TargetAttributes = {
 					89CB12331C9DA07B00048E46 = {
 						CreatedOnToolsVersion = 7.2.1;
-						DevelopmentTeam = GMD7EK7S94;
+						LastSwiftMigration = 0920;
-						LastSwiftMigration = 0800;
 					};
 				};
 			};
@@ -363,7 +362,7 @@
 				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
-				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 				VALIDATE_PRODUCT = YES;
 			};
 			name = Release;

RMRPullToRefresh.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
   spec.name         = "RMRPullToRefresh"
-  spec.version      = "0.6.0"
+  spec.version      = "0.8.0"
   spec.platform     = :ios, "9.0"
   spec.license      = { :type => "MIT", :file => "LICENSE" }
   spec.summary      = "A pull to refresh control for UIScrollView (UITableView and UICollectionView)"
@@ -8,5 +8,5 @@ Pod::Spec.new do |spec|
   spec.author       = "Ilya Merkulov"
   spec.source       = { :git => "https://git.redmadrobot.com/helper-ios/RMRPullToRefresh.git", :tag => spec.version }
   spec.source_files = "Classes/*.{swift}", "Classes/Default/*.{swift}"
-  spec.resources = ['Images/*.png']
+  spec.resources    = ['Images/*.png']
 end