RTL language support added

Example/PopupViewController.swift

@@ -39,6 +39,7 @@ class PopupViewController: UIViewController {
     @IBOutlet weak var tabItemViewWidthSlider: UISlider!
     @IBOutlet weak var tabAdditionSegmentedControl: UISegmentedControl!
     @IBOutlet weak var contentScrolEnabledSegmentedControl: UISegmentedControl!
+    @IBOutlet weak var languageDirectionSegmentedControl: UISegmentedControl!
 
     override func viewDidLoad() {
         super.viewDidLoad()
@@ -88,6 +89,12 @@ class PopupViewController: UIViewController {
         } else {
             contentScrolEnabledSegmentedControl.selectedSegmentIndex = 1
         }
+
+        if options.isLanguageRTL {
+            languageDirectionSegmentedControl.selectedSegmentIndex = 1
+        } else {
+            languageDirectionSegmentedControl.selectedSegmentIndex = 0
+        }
     }
 
     override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
@@ -196,4 +203,16 @@ class PopupViewController: UIViewController {
             break
         }
     }
+
+    @IBAction func changeLanguageDirection(_ sender: UISegmentedControl) {
+
+        switch sender.selectedSegmentIndex {
+        case 0:
+            options.isLanguageRTL = false
+        case 1:
+            options.isLanguageRTL = true
+        default:
+            break
+        }
+    }
 }

Sources/Classes/ContentScrollView.swift

@@ -1,12 +1,14 @@
 import UIKit
 
+// MARK: - ContentScrollViewDataSource
 public protocol ContentScrollViewDataSource {
 
     func numberOfPages(in contentScrollView: ContentScrollView) -> Int
 
     func contentScrollView(_ contentScrollView: ContentScrollView, viewForPageAt index: Int) -> UIView?
 }
 
+// MARK: - ContentScrollView
 open class ContentScrollView: UIScrollView {
 
     open var dataSource: ContentScrollViewDataSource?
@@ -48,6 +50,7 @@ open class ContentScrollView: UIScrollView {
     public func reset() {
         pageViews = []
         currentIndex = 0
+        self.subviews.forEach({ $0.removeFromSuperview() })
     }
 
     public func reload() {
@@ -57,6 +60,16 @@ open class ContentScrollView: UIScrollView {
     public func update(_ newIndex: Int) {
         currentIndex = newIndex
     }
+
+    func updateSemantic() {
+        if #available(iOS 9.0, *) {
+            if options.isLanguageRTL {
+                self.semanticContentAttribute = .forceRightToLeft
+            } else {
+                self.semanticContentAttribute = .forceLeftToRight
+            }
+        }
+    }
 
     // MARK: - Setup
 
@@ -102,23 +115,38 @@ open class ContentScrollView: UIScrollView {
                 pageView.widthAnchor.constraint(equalTo: self.widthAnchor),
                 pageView.heightAnchor.constraint(equalTo: self.heightAnchor),
                 pageView.leadingAnchor.constraint(equalTo: leadingAnchor)
-            ])
+                ])
         }
 
         guard currentIndex < dataSource.numberOfPages(in: self) else { return }
+
+        var lastPageView :UIView?
+
         for i in (currentIndex + 1)..<dataSource.numberOfPages(in: self) {
             guard let pageView = dataSource.contentScrollView(self, viewForPageAt: i) else { return }
             pageViews.append(pageView)
             addSubview(pageView)
 
             pageView.translatesAutoresizingMaskIntoConstraints = false
+
+            lastPageView = pageView
+
             NSLayoutConstraint.activate([
                 pageView.topAnchor.constraint(equalTo: self.topAnchor),
                 pageView.widthAnchor.constraint(equalTo: self.widthAnchor),
                 pageView.heightAnchor.constraint(equalTo: self.heightAnchor),
                 pageView.leadingAnchor.constraint(equalTo: pageViews[i - 1].trailingAnchor)
-            ])
+                ])
         }
+
+
+        if let lastView = lastPageView {
+            NSLayoutConstraint.activate([
+                lastView.trailingAnchor.constraint(equalTo: self.trailingAnchor)
+                ])
+        }
+
+
     }
 }
 
@@ -153,6 +181,13 @@ extension ContentScrollView {
 
     public func jump(to index: Int, animated: Bool) {
         update(index)
-        self.setContentOffset(CGPoint(x: self.frame.width * CGFloat(currentIndex), y: 0), animated: animated)
+
+        if options.isLanguageRTL {
+            self.setContentOffset(CGPoint(x: self.frame.width * CGFloat((pageViews.count - 1) - currentIndex), y: 0), animated: animated)
+        } else {
+            self.setContentOffset(CGPoint(x: self.frame.width * CGFloat(currentIndex), y: 0), animated: animated)
+        }
+
+
     }
 }