diff --git a/.gitignore b/.gitignore
index 8615121..1c39ed8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,7 @@ DerivedData
 *.hmap
 *.ipa
 *.xcuserstate
+*.zip
 
 # CocoaPods
 #
diff --git a/WMPageController-Swift.xcodeproj/project.xcworkspace/xcuserdata/Mark.xcuserdatad/UserInterfaceState.xcuserstate b/WMPageController-Swift.xcodeproj/project.xcworkspace/xcuserdata/Mark.xcuserdatad/UserInterfaceState.xcuserstate
index 7e196c2..c9b5f09 100644
Binary files a/WMPageController-Swift.xcodeproj/project.xcworkspace/xcuserdata/Mark.xcuserdatad/UserInterfaceState.xcuserstate and b/WMPageController-Swift.xcodeproj/project.xcworkspace/xcuserdata/Mark.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/WMPageController-Swift.xcodeproj/xcshareddata/xcschemes/WMPageControllerSwiftFramework.xcscheme b/WMPageController-Swift.xcodeproj/xcshareddata/xcschemes/WMPageControllerSwiftFramework.xcscheme
index 81a32e4..1050907 100644
--- a/WMPageController-Swift.xcodeproj/xcshareddata/xcschemes/WMPageControllerSwiftFramework.xcscheme
+++ b/WMPageController-Swift.xcodeproj/xcshareddata/xcschemes/WMPageControllerSwiftFramework.xcscheme
@@ -15,7 +15,7 @@
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "4D45BF621CC7BC12003F0151"
-               BuildableName = "WMPageControllerSwiftFramework.framework"
+               BuildableName = "WMPageControllerSwift.framework"
                BlueprintName = "WMPageControllerSwiftFramework"
                ReferencedContainer = "container:WMPageController-Swift.xcodeproj">
             </BuildableReference>
@@ -46,7 +46,7 @@
          <BuildableReference
             BuildableIdentifier = "primary"
             BlueprintIdentifier = "4D45BF621CC7BC12003F0151"
-            BuildableName = "WMPageControllerSwiftFramework.framework"
+            BuildableName = "WMPageControllerSwift.framework"
             BlueprintName = "WMPageControllerSwiftFramework"
             ReferencedContainer = "container:WMPageController-Swift.xcodeproj">
          </BuildableReference>
@@ -64,7 +64,7 @@
          <BuildableReference
             BuildableIdentifier = "primary"
             BlueprintIdentifier = "4D45BF621CC7BC12003F0151"
-            BuildableName = "WMPageControllerSwiftFramework.framework"
+            BuildableName = "WMPageControllerSwift.framework"
             BlueprintName = "WMPageControllerSwiftFramework"
             ReferencedContainer = "container:WMPageController-Swift.xcodeproj">
          </BuildableReference>
diff --git a/WMPageController-Swift/PageController/PageController.swift b/WMPageController-Swift/PageController/PageController.swift
index 7d1471d..16a8145 100644
--- a/WMPageController-Swift/PageController/PageController.swift
+++ b/WMPageController-Swift/PageController/PageController.swift
@@ -96,6 +96,13 @@ public class PageController: UIViewController, UIScrollViewDelegate, MenuViewDel
     public lazy var titleColorNormal = UIColor.blackColor()
     public lazy var menuBGColor = UIColor(red: 244.0/255.0, green: 244.0/255.0, blue: 244.0/255.0, alpha: 1.0)
     
+    override public var edgesForExtendedLayout: UIRectEdge {
+        didSet {
+            hasInit = false
+            viewDidLayoutSubviews()
+        }
+    }
+    
     // MARK: - Private vars
     private var memoryWarningCount = 0
     private var viewHeight: CGFloat = 0.0
@@ -131,8 +138,6 @@ public class PageController: UIViewController, UIScrollViewDelegate, MenuViewDel
     
     override public func viewDidLoad() {
         super.viewDidLoad()
-        edgesForExtendedLayout = UIRectEdge.None
-        UIApplication.sharedApplication().delegate?.window??.backgroundColor = .whiteColor()
         view.backgroundColor = .whiteColor()
         guard childControllersCount > 0 else { return }
         calculateSize()
@@ -300,18 +305,23 @@ public class PageController: UIViewController, UIScrollViewDelegate, MenuViewDel
     }
     
     private func calculateSize() {
+        var navBarHeight = (navigationController != nil) ? CGRectGetMaxY(navigationController!.navigationBar.frame) : 0
+        if edgesForExtendedLayout == UIRectEdge.None {
+            navBarHeight = 0
+        }
+        
         if viewFrame == CGRectZero {
             viewWidth  = view.frame.size.width
-            viewHeight = view.frame.size.height - menuHeight
+            viewHeight = view.frame.size.height - menuHeight - navBarHeight
         } else {
             viewWidth = viewFrame.size.width
-            viewHeight = viewFrame.size.height
+            viewHeight = viewFrame.size.height - menuHeight
         }
         if showOnNavigationBar && (navigationController?.navigationBar != nil) {
             viewHeight += menuHeight
         }
         viewX = viewFrame.origin.x
-        viewY = viewFrame.origin.y
+        viewY = viewFrame.origin.y + navBarHeight
         childViewFrames.removeAll()
         for index in 0 ..< childControllersCount {
             let viewControllerFrame = CGRect(x: CGFloat(index) * viewWidth, y: 0, width: viewWidth, height: viewHeight)