Added auto scrolling functionality.

izeni-team · Oct 4, 2016 · c659293 · c659293
1 parent e065120
commit c659293
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Showing 3 changed files with 22 additions and 3 deletions.
diff --git a/.DS_Store b/.DS_Store
diff --git a/IZPageController.podspec b/IZPageController.podspec
@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'IZPageController'
-  s.version          = '0.1.0'
+  s.version          = '0.2.0'
   s.summary          = 'Used to create easily scrolled views that snap to place.'
 
   s.description      = <<-DESC

diff --git a/IZPageController/Classes/IZPageController.swift b/IZPageController/Classes/IZPageController.swift
@@ -132,7 +132,7 @@ open class IZPageController: UIViewController, UIScrollViewDelegate {
             removeViewController(at: it.offset)
         }
         viewControllers = []
-        for _ in 0..<(delegate?.numberOfViewControllers() ?? 0) {
+        for index in 0..<(delegate?.numberOfViewControllers() ?? 0) {
             viewControllers.append(nil)
         }
         updateViewControllers(area: .preload)
@@ -202,6 +202,25 @@ open class IZPageController: UIViewController, UIScrollViewDelegate {
         return scrollView.frame.size
     }
 
+    open func scrollToViewController(at index : Int, animated : Bool) {
+
+        let frame = frameForViewController(at: index)
+
+        if animated {
+            UIView.animate(withDuration: 0, animations: {
+                self.scrollView.scrollRectToVisible(frame, animated: true)
+
+                }, completion: { (success) in
+                    if success {
+                        self.updatePageIndex()
+                    }
+            })
+        } else {
+            scrollView.scrollRectToVisible(frame, animated: false)
+            updatePageIndex()
+        }
+    }
+
     open func updatePageIndex() {
         if let pageIndex = pageIndex, previouslyReportedPageIndex != pageIndex {
             previouslyReportedPageIndex = pageIndex
@@ -219,4 +238,4 @@ open class IZPageController: UIViewController, UIScrollViewDelegate {
         updatePageIndex()
         updateViewControllers(area: .preload)
     }
-}
+}