diff --git a/HFSwipeView/Classes/HFSwipeView+AutoSlide.swift b/HFSwipeView/Classes/HFSwipeView+AutoSlide.swift
index 978b818..e36fb50 100644
--- a/HFSwipeView/Classes/HFSwipeView+AutoSlide.swift
+++ b/HFSwipeView/Classes/HFSwipeView+AutoSlide.swift
@@ -14,7 +14,7 @@ extension HFSwipeView {
     /// zero or minus interval disables auto slide.
     public func startAutoSlide(forTimeInterval timeInterval: TimeInterval) {
         if !circulating {
-            logw("Cannot use auto-slide without circulation mode.")
+          //  logw("Cannot use auto-slide without circulation mode.")
             return
         }
         if timeInterval > 0 {
@@ -31,7 +31,7 @@ extension HFSwipeView {
     
     public func pauseAutoSlide() {
         if !circulating {
-            logw("Cannot use auto-slide without circulation mode.")
+          //  logw("Cannot use auto-slide without circulation mode.")
             return
         }
         if autoSlideInterval > 0 {
@@ -44,7 +44,7 @@ extension HFSwipeView {
     
     public func resumeAutoSlide() {
         if !circulating {
-            logw("Cannot use auto-slide without circulation mode.")
+           // logw("Cannot use auto-slide without circulation mode.")
             return
         }
         if autoSlideIntervalBackupForLaterUse > 0 {
@@ -54,7 +54,7 @@ extension HFSwipeView {
     
     public func stopAutoSlide() {
         if !circulating {
-            logw("Cannot use auto-slide without circulation mode.")
+           // logw("Cannot use auto-slide without circulation mode.")
             return
         }
         autoSlideInterval = -1
@@ -68,7 +68,7 @@ extension HFSwipeView {
             return
         }
         DispatchQueue.main.async {
-            self.movePage((self.currentPage + 1) % self.count, animated: true)
+            self.movePage((self.currentPage + self.count + 1), animated: true)
         }
     }
 }
diff --git a/HFSwipeView/Classes/HFSwipeView+Delegate.swift b/HFSwipeView/Classes/HFSwipeView+Delegate.swift
index e34bf3f..15289af 100644
--- a/HFSwipeView/Classes/HFSwipeView+Delegate.swift
+++ b/HFSwipeView/Classes/HFSwipeView+Delegate.swift
@@ -17,7 +17,7 @@ extension HFSwipeView: UICollectionViewDataSource {
     }
     
     public func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
-        log("\(realViewCount)")
+       // log("\(realViewCount)")
         return realViewCount
     }
     
@@ -33,7 +33,7 @@ extension HFSwipeView: UICollectionViewDataSource {
         
         let cell: UICollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: kSwipeViewCellIdentifier, for: indexPath)
         guard let dataSource = self.dataSource else {
-            loge("dataSource is nil")
+          //  loge("dataSource is nil")
             return cell
         }
         
@@ -66,15 +66,15 @@ extension HFSwipeView: UICollectionViewDataSource {
         }
         
         if displayIndex.row == currentPage {
-            log("[CURRENT][\(displayIndex.row)/\(indexPath.row)]")
+           // log("[CURRENT][\(displayIndex.row)/\(indexPath.row)]")
             if indexPath.row == currentRealPage {
                 dataSource.swipeView?(self, needUpdateCurrentViewForIndexPath: displayIndex, view: cellView!)
             } else {
-                log("[NORMAL][\(displayIndex.row)/\(indexPath.row)]")
+              //  log("[NORMAL][\(displayIndex.row)/\(indexPath.row)]")
                 dataSource.swipeView?(self, needUpdateViewForIndexPath: displayIndex, view: cellView!)
             }
         } else {
-            log("[NORMAL][\(displayIndex.row)/\(indexPath.row)]")
+          //  log("[NORMAL][\(displayIndex.row)/\(indexPath.row)]")
             dataSource.swipeView?(self, needUpdateViewForIndexPath: displayIndex, view: cellView!)
         }
         addDebugInfo(view: cellView!, realIndex: indexPath.row, dispIndex: displayIndex.row)
@@ -84,7 +84,7 @@ extension HFSwipeView: UICollectionViewDataSource {
     internal func cellForItemInNormalMode(_ collectionView: UICollectionView, indexPath: IndexPath) -> UICollectionViewCell {
         let cell: UICollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: kSwipeViewCellIdentifier, for: indexPath)
         guard let dataSource = self.dataSource else {
-            loge("dataSource is nil")
+          //  loge("dataSource is nil")
             return cell
         }
         var cellView: UIView? = nil
@@ -145,12 +145,12 @@ extension HFSwipeView: UICollectionViewDelegateFlowLayout {
     public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
         
         guard var itemSize = self.itemSize else {
-            loge("item size not provided")
+          //  loge("item size not provided")
             return .zero
         }
         
         if frame.size.width < itemSize.width {
-            loge("item size cannot exceeds parent swipe view")
+          //  loge("item size cannot exceeds parent swipe view")
             return .zero
         }
         
@@ -217,11 +217,11 @@ extension HFSwipeView: UIScrollViewDelegate {
     }
     
     public func scrollViewWillBeginDecelerating(_ scrollView: UIScrollView) {
-        log("[\(self.tag)]")
+      //  log("[\(self.tag)]")
     }
     
     public func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
-        log("[\(self.tag)]: \(scrollView.contentOffset.x), velocity: \(velocity.x), target: \(targetContentOffset.pointee.x)")
+       // log("[\(self.tag)]: \(scrollView.contentOffset.x), velocity: \(velocity.x), target: \(targetContentOffset.pointee.x)")
     }
     
     public func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {
@@ -236,7 +236,7 @@ extension HFSwipeView: UIScrollViewDelegate {
     }
     
     public func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) {
-        log("[\(self.tag)]")
+       // log("[\(self.tag)]")
         updateIndexBasedOnContentOffset()
         
         if circulating {
diff --git a/HFSwipeView/Classes/HFSwipeView+Index.swift b/HFSwipeView/Classes/HFSwipeView+Index.swift
index ae4a96e..1dfc4ce 100644
--- a/HFSwipeView/Classes/HFSwipeView+Index.swift
+++ b/HFSwipeView/Classes/HFSwipeView+Index.swift
@@ -78,7 +78,7 @@ extension HFSwipeView {
             }
         }
         
-        log("[\(self.tag)]: from: \(from) to: \(minIdx)")
+       // log("[\(self.tag)]: from: \(from) to: \(minIdx)")
         return IndexPath(item: minIdx, section: 0)
     }
     
@@ -129,7 +129,7 @@ extension HFSwipeView {
             } else {
                 displayIndex = realIndex.row - count - dummyCount
             }
-            log("[\(self.tag)]: \(realIndex.row) -> \(displayIndex)")
+          //  log("[\(self.tag)]: \(realIndex.row) -> \(displayIndex)")
             return IndexPath(item: displayIndex, section: 0)
         } else {
             return IndexPath(item: realIndex.row, section: 0)
@@ -144,7 +144,7 @@ extension HFSwipeView {
         if 0 <= displayIndex.row && displayIndex.row < count {
             index = displayIndex.row + dummyCount
         }
-        log("[\(self.tag)]: \(displayIndex.row) -> \(index)")
+       // log("[\(self.tag)]: \(displayIndex.row) -> \(index)")
         return IndexPath(item: index, section: 0)
     }
     
@@ -178,7 +178,7 @@ extension HFSwipeView {
         }
         
         guard let indexPath = indexPathForItemAtPoint(collectionView.contentOffset) else {
-            logw("indexPathForItemAtPoint returned nil.")
+          //  logw("indexPathForItemAtPoint returned nil.")
             return
         }
         
@@ -194,9 +194,9 @@ extension HFSwipeView {
             if let view = indexViewMapper[currentRealPage] {
                 dataSource?.swipeView?(self, needUpdateCurrentViewForIndexPath: displayIndex, view: view)
             } else {
-                logw("Failed to retrieve current view from indexViewMapper for indexPath: \(indexPath.row)")
+             //   logw("Failed to retrieve current view from indexViewMapper for indexPath: \(indexPath.row)")
             }
-            log("[\(self.tag)]: \(currentPage)/\(count - 1) - \(currentRealPage)/\(realViewCount - 1)")
+          //  log("[\(self.tag)]: \(currentPage)/\(count - 1) - \(currentRealPage)/\(realViewCount - 1)")
         }
     }
     
@@ -205,7 +205,7 @@ extension HFSwipeView {
         guard let indexPath = indexPathForItemAtPoint(collectionView.contentOffset) else {
             return
         }
-        log("[\(self.tag)]: real -> \(indexPath.row)")
+       // log("[\(self.tag)]: real -> \(indexPath.row)")
         
         let displayIndex = displayIndexUsing(indexPath)
         delegate?.swipeView?(self, didFinishScrollAtIndexPath: displayIndex)
diff --git a/HFSwipeView/Classes/HFSwipeView+Offset.swift b/HFSwipeView/Classes/HFSwipeView+Offset.swift
index 801f5f0..1aed705 100644
--- a/HFSwipeView/Classes/HFSwipeView+Offset.swift
+++ b/HFSwipeView/Classes/HFSwipeView+Offset.swift
@@ -45,7 +45,7 @@ extension HFSwipeView {
         
         // corrected index
         guard let proposedIndexPath = indexPathForItemAtPoint(proposedOffset) else {
-            loge("nearestIndexPath is nil")
+           // loge("nearestIndexPath is nil")
             return .zero
         }
         
@@ -99,12 +99,12 @@ extension HFSwipeView {
         if offset.x < dummyWidth {
             let delta = dummyWidth - offset.x
             setContentOffsetWithoutCallingDelegate(CGPoint(x: contentSize.width - dummyWidth - delta, y: 0))
-            log("[\(self.tag)]: moved to last view, offset: \(scrollView.contentOffset)")
+          //  log("[\(self.tag)]: moved to last view, offset: \(scrollView.contentOffset)")
             return true
         } else if offset.x >= contentSize.width - dummyWidth {
             let delta = offset.x - (contentSize.width - dummyWidth)
             setContentOffsetWithoutCallingDelegate(CGPoint(x: self.dummyWidth + delta, y: 0))
-            log("[\(self.tag)]: moved to first view!, offset: \(scrollView.contentOffset)")
+          //  log("[\(self.tag)]: moved to first view!, offset: \(scrollView.contentOffset)")
             return true
         }
         return false
diff --git a/HFSwipeView/Classes/HFSwipeView+Page.swift b/HFSwipeView/Classes/HFSwipeView+Page.swift
index e540161..07661fd 100644
--- a/HFSwipeView/Classes/HFSwipeView+Page.swift
+++ b/HFSwipeView/Classes/HFSwipeView+Page.swift
@@ -14,10 +14,10 @@ extension HFSwipeView {
     
     internal func moveRealPage(_ realPage: Int, animated: Bool) {
         if realPage >= 0 && realPage < realViewCount && realPage == currentRealPage {
-            log("moveRealPage received same page(\(realPage)) == currentPage(\(currentRealPage))")
+          //  log("moveRealPage received same page(\(realPage)) == currentPage(\(currentRealPage))")
             return
         }
-        log("[\(self.tag)]: \(realPage)")
+       // log("[\(self.tag)]: \(realPage)")
         
         let realIndex = IndexPath(item: realPage, section: 0)
         
@@ -37,7 +37,7 @@ extension HFSwipeView {
         if let view = indexViewMapper[currentRealPage] {
             dataSource?.swipeView?(self, needUpdateCurrentViewForIndexPath: displayIndex, view: view)
         } else {
-            logw("Failed to retrieve current view from indexViewMapper for indexPath: \(displayIndex.row)")
+           // logw("Failed to retrieve current view from indexViewMapper for indexPath: \(displayIndex.row)")
         }
         
     }
@@ -53,6 +53,6 @@ extension HFSwipeView {
                 collectionView.scrollToItem(at: indexPath, at: .centeredHorizontally, animated: true)
             }
         }
-        log("[\(self.tag)]: real -> \(indexPath.row)")
+       // log("[\(self.tag)]: real -> \(indexPath.row)")
     }
 }
diff --git a/HFSwipeView/Classes/HFSwipeView.swift b/HFSwipeView/Classes/HFSwipeView.swift
index d6dd18e..98d9bfc 100644
--- a/HFSwipeView/Classes/HFSwipeView.swift
+++ b/HFSwipeView/Classes/HFSwipeView.swift
@@ -77,11 +77,11 @@ open class HFSwipeView: UIView {
     internal var contentInsets: UIEdgeInsets {
         if var insets = dataSource?.swipeViewContentInsets?(self) {
             if insets.top != 0 {
-                logw("Changing UIEdgeInsets.top for HFSwipeView is not supported yet, consider a container view instead.")
+               // logw("Changing UIEdgeInsets.top for HFSwipeView is not supported yet, consider a container view instead.")
                 insets.top = 0
             }
             if insets.bottom != 0 {
-                logw("Changing UIEdgeInsets.bottom for HFSwipeView is not supported yet, consider a container view instead.")
+               // logw("Changing UIEdgeInsets.bottom for HFSwipeView is not supported yet, consider a container view instead.")
                 insets.bottom = 0
             }
             return insets
@@ -141,11 +141,11 @@ open class HFSwipeView: UIView {
     open var count: Int { // showing count
         if circulating {
             if realViewCount < 0 {
-                loge("cannot use property \"count\" before set HFSwipeView.realViewCount")
+               // loge("cannot use property \"count\" before set HFSwipeView.realViewCount")
                 return -1
             }
             if realViewCount > 0 {
-                return realViewCount - 2 * dummyCount
+                return realViewCount - 1 * dummyCount
             } else {
                 return 0
             }
@@ -227,7 +227,7 @@ open class HFSwipeView: UIView {
     }
     
     deinit {
-        logi("Successfully released HFSwipeView object.")
+       // logi("Successfully released HFSwipeView object.")
     }
     
     fileprivate func prepareForInteraction() {
@@ -240,19 +240,19 @@ open class HFSwipeView: UIView {
         
         // retrieve item distance
         itemSpace = cgfloat(dataSource?.swipeViewItemDistance?(self), defaultValue: 0)
-        log("successfully set itemSpace: \(itemSpace)")
+       // log("successfully set itemSpace: \(itemSpace)")
         
         // retrieve item size
         itemSize = dataSource?.swipeViewItemSize(self)
         guard let itemSize = itemSize else {
-            loge("item size not provided")
+          // loge("item size not provided")
             return false
         }
         if itemSize == CGSize.zero {
-            loge("item size error: CGSizeZero")
+          //  loge("item size error: CGSizeZero")
             return false
         } else {
-            log("itemSize is \(itemSize)")
+           // log("itemSize is \(itemSize)")
         }
         
         // retrieve item count
@@ -265,17 +265,17 @@ open class HFSwipeView: UIView {
                 // if given width is wider than needed space
                 if itemCount > 0 {
                     itemSpace = (frame.size.width - (itemSize.width * CGFloat(itemCount))) / CGFloat(itemCount)
-                    logw("successfully fixed itemSpace: \(itemSpace)")
+                  //  logw("successfully fixed itemSpace: \(itemSpace)")
                 }
             }
             dummyCount = itemCount
             if dummyCount >= 1 {
                 dummyWidth = CGFloat(dummyCount) * (itemSize.width + itemSpace)
-                log("successfully set dummyCount: \(dummyCount), dummyWidth: \(dummyWidth)")
+               // log("successfully set dummyCount: \(dummyCount), dummyWidth: \(dummyWidth)")
             }
             
             realViewCount = itemCount > 0 ? itemCount + dummyCount * 2 : 0
-            log("successfully set realViewCount: \(realViewCount)")
+          //  log("successfully set realViewCount: \(realViewCount)")
             
         } else {
             collectionView.alwaysBounceHorizontal = true
@@ -290,7 +290,7 @@ open class HFSwipeView: UIView {
         }
         (collectionView.collectionViewLayout as? HFSwipeViewFlowLayout)?.itemSize = itemSize
         setContentSizeWithoutCallingDelegate(contentSize)
-        log("successfully set content size: \(collectionView.contentSize)")
+       // log("successfully set content size: \(collectionView.contentSize)")
         
         return true
     }
@@ -351,7 +351,7 @@ extension HFSwipeView {
     open func movePage(_ page: Int, animated: Bool) {
         
         if page == currentPage {
-            log("movePage received same page(\(page)) == currentPage(\(currentPage))")
+          //  log("movePage received same page(\(page)) == currentPage(\(currentPage))")
             autoAlign(collectionView, indexPath: IndexPath(item: currentRealPage, section: 0))
             return
         }