diff --git a/Example/RDImageViewerController.xcworkspace/xcuserdata/akira.xcuserdatad/UserInterfaceState.xcuserstate b/Example/RDImageViewerController.xcworkspace/xcuserdata/akira.xcuserdatad/UserInterfaceState.xcuserstate
index b7b960a..fcdddeb 100644
Binary files a/Example/RDImageViewerController.xcworkspace/xcuserdata/akira.xcuserdatad/UserInterfaceState.xcuserstate and b/Example/RDImageViewerController.xcworkspace/xcuserdata/akira.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/Example/RDImageViewerController.xcworkspace/xcuserdata/akira.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/Example/RDImageViewerController.xcworkspace/xcuserdata/akira.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
index fd89c65..e10cb27 100644
--- a/Example/RDImageViewerController.xcworkspace/xcuserdata/akira.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
+++ b/Example/RDImageViewerController.xcworkspace/xcuserdata/akira.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
@@ -31,7 +31,7 @@
             ignoreCount = "0"
             continueAfterRunningActions = "No"
             filePath = "../RDImageViewerController/Classes/RDImageViewerController.swift"
-            timestampString = "577135342.8833359"
+            timestampString = "577297685.6991071"
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
             startingLineNumber = "270"
diff --git a/RDImageViewerController/Classes/RDImageContentData.swift b/RDImageViewerController/Classes/RDImageContentData.swift
index c09af54..df46801 100644
--- a/RDImageViewerController/Classes/RDImageContentData.swift
+++ b/RDImageViewerController/Classes/RDImageContentData.swift
@@ -49,9 +49,9 @@ open class RDImageContentData: RDPageContentData {
         return true
     }
     
-    override open func reload() {
+    @objc override open func reload(completion: ((RDPageContentData) -> Void)?) {
         image = nil
-        preload()
+        preload(completion: completion)
     }
     
     override open func stopPreload() {
diff --git a/RDImageViewerController/Classes/RDPageContentData.swift b/RDImageViewerController/Classes/RDPageContentData.swift
index 63748af..5c6f598 100644
--- a/RDImageViewerController/Classes/RDPageContentData.swift
+++ b/RDImageViewerController/Classes/RDPageContentData.swift
@@ -13,6 +13,7 @@ public protocol RDPageContentProtocol {
     func preload(completion: ((RDPageContentData) -> Void)?)
     func stopPreload()
     func reload()
+    func reload(completion: ((RDPageContentData) -> Void)?)
     func reuseIdentifier() -> String
     func size(inRect rect: CGRect, direction: RDPagingView.ForwardDirection) -> CGSize
 }
@@ -56,6 +57,10 @@ open class RDPageContentData: NSObject, RDPageContentProtocol {
     }
     
     @objc open func reload() {
+        reload(completion: nil)
+    }
+    
+    @objc open func reload(completion: ((RDPageContentData) -> Void)?) {
         NSException(name: NSExceptionName(rawValue: "RDPageContentData"), reason: "You have to override this method. \(#function)", userInfo: nil).raise()
     }
     
diff --git a/RDImageViewerController/Classes/RDRemoteImageContentData.swift b/RDImageViewerController/Classes/RDRemoteImageContentData.swift
index 69bea74..2c55197 100644
--- a/RDImageViewerController/Classes/RDRemoteImageContentData.swift
+++ b/RDImageViewerController/Classes/RDRemoteImageContentData.swift
@@ -31,13 +31,13 @@ open class RDRemoteImageContentData: RDImageContentData {
         }
     }
     
-    @objc override open func preload() {
-        preload(completion: nil)
+    @objc override open func reload(completion: ((RDPageContentData) -> Void)?) {
+        image = nil
+        preload(completion: completion)
     }
     
-    @objc override open func reload() {
-        image = nil
-        preload()
+    @objc override open func preload() {
+        preload(completion: nil)
     }
     
     open override func preload(completion: ((RDPageContentData) -> Void)?) {