From bb462f3928f78bad9a9e5e7ad94a965242017796 Mon Sep 17 00:00:00 2001
From: Ruslan <rsrbk1@gmail.com>
Date: Fri, 30 Sep 2016 11:37:50 +0300
Subject: [PATCH] shouldUpdateScrollViewInsets method

---
 .../HidingNavigationBarManager.swift          | 12 +++++++----
 .../Base.lproj/Main.storyboard                | 20 ++++++++++---------
 .../HidingNavViewController.swift             |  6 +++++-
 .../AppIcon.appiconset/Contents.json          | 10 ++++++++++
 4 files changed, 34 insertions(+), 14 deletions(-)

diff --git a/HidingNavigationBar/HidingNavigationBarManager.swift b/HidingNavigationBar/HidingNavigationBarManager.swift
index 36e1a53..0dfa4b1 100644
--- a/HidingNavigationBar/HidingNavigationBarManager.swift
+++ b/HidingNavigationBar/HidingNavigationBarManager.swift
@@ -9,6 +9,7 @@
 import UIKit
 
 public protocol HidingNavigationBarManagerDelegate: class {
+    func hidingNavigationBarManagerShouldUpdateScrollViewInsets(_ manager: HidingNavigationBarManager, insets: UIEdgeInsets) -> Bool
 	func hidingNavigationBarManagerDidUpdateScrollViewInsets(_ manager: HidingNavigationBarManager)
 	func hidingNavigationBarManagerDidChangeState(_ manager: HidingNavigationBarManager, toState state: HidingNavigationBarState)
 }
@@ -163,9 +164,7 @@ open class HidingNavigationBarManager: NSObject, UIScrollViewDelegate, UIGesture
 			frame.size.height = extensionView.bounds.size.height
 			extensionController.view.frame = frame
 		}
-		
-		updateContentInsets()
-		
+
 		if scrolledToTop {
 			var offset = scrollView.contentOffset
 			offset.y = -scrollView.contentInset.top
@@ -333,7 +332,12 @@ open class HidingNavigationBarManager: NSObject, UIScrollViewDelegate, UIGesture
 		updateScrollContentInsetTop(top)
 	}
 	
-	fileprivate func updateScrollContentInsetTop(_ top: CGFloat){
+	fileprivate func updateScrollContentInsetTop(_ top: CGFloat) {
+        let contentInset = UIEdgeInsets(top: top, left: scrollView.contentInset.top, bottom: scrollView.contentInset.left, right: scrollView.contentInset.right)
+        if delegate?.hidingNavigationBarManagerShouldUpdateScrollViewInsets(self, insets: contentInset) == false {
+            return
+        }
+        
         if viewController.automaticallyAdjustsScrollViewInsets {
             var contentInset = scrollView.contentInset
             contentInset.top = top
diff --git a/HidingNavigationBarSample/HidingNavigationBarSample/Base.lproj/Main.storyboard b/HidingNavigationBarSample/HidingNavigationBarSample/Base.lproj/Main.storyboard
index 50577b0..26957b3 100644
--- a/HidingNavigationBarSample/HidingNavigationBarSample/Base.lproj/Main.storyboard
+++ b/HidingNavigationBarSample/HidingNavigationBarSample/Base.lproj/Main.storyboard
@@ -1,7 +1,9 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="7702" systemVersion="14D136" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="rS3-R9-Ivy">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11201" systemVersion="15G1004" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="rS3-R9-Ivy">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7701"/>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11161"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
         <!--Master-->
@@ -24,27 +26,27 @@
             <objects>
                 <tableViewController title="Master" id="pGg-6v-bdr" customClass="MasterViewController" customModule="HidingNavigationBarSample" customModuleProvider="target" sceneMemberID="viewController">
                     <tableView key="view" opaque="NO" clipsSubviews="YES" clearsContextBeforeDrawing="NO" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="44" sectionHeaderHeight="22" sectionFooterHeight="22" id="mLL-gJ-YKr">
-                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                         <prototypes>
                             <tableViewCell contentMode="scaleToFill" selectionStyle="blue" accessoryType="disclosureIndicator" hidesAccessoryWhenEditing="NO" indentationLevel="1" indentationWidth="0.0" reuseIdentifier="Cell" textLabel="2pz-XF-uhl" style="IBUITableViewCellStyleDefault" id="m0d-ak-lc9">
-                                <rect key="frame" x="0.0" y="86" width="320" height="44"/>
+                                <rect key="frame" x="0.0" y="86" width="375" height="44"/>
                                 <autoresizingMask key="autoresizingMask"/>
                                 <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" tableViewCell="m0d-ak-lc9" id="d3P-M7-ByW">
-                                    <rect key="frame" x="0.0" y="0.0" width="287" height="43"/>
+                                    <frame key="frameInset" width="342" height="43"/>
                                     <autoresizingMask key="autoresizingMask"/>
                                     <subviews>
                                         <label opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" text="Title" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="2pz-XF-uhl">
-                                            <rect key="frame" x="15" y="0.0" width="270" height="43"/>
+                                            <frame key="frameInset" minX="15" width="325" height="43"/>
                                             <autoresizingMask key="autoresizingMask"/>
                                             <fontDescription key="fontDescription" type="boldSystem" pointSize="20"/>
                                             <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
-                                            <color key="highlightedColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                            <color key="highlightedColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                                         </label>
                                     </subviews>
                                 </tableViewCellContentView>
-                                <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
+                                <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                             </tableViewCell>
                         </prototypes>
                         <sections/>
diff --git a/HidingNavigationBarSample/HidingNavigationBarSample/HidingNavViewController.swift b/HidingNavigationBarSample/HidingNavigationBarSample/HidingNavViewController.swift
index fd0261b..e17da35 100644
--- a/HidingNavigationBarSample/HidingNavigationBarSample/HidingNavViewController.swift
+++ b/HidingNavigationBarSample/HidingNavigationBarSample/HidingNavViewController.swift
@@ -82,6 +82,10 @@ class HidingNavViewController: UIViewController, UITableViewDataSource, UITableV
     }
     
     func hidingNavigationBarManagerDidUpdateScrollViewInsets(_ manager: HidingNavigationBarManager) {
-        
+        print("kek")
+    }
+
+    func hidingNavigationBarManagerShouldUpdateScrollViewInsets(_ manager: HidingNavigationBarManager, insets: UIEdgeInsets) -> Bool {
+        return true
     }
 }
diff --git a/HidingNavigationBarSample/HidingNavigationBarSample/Images.xcassets/AppIcon.appiconset/Contents.json b/HidingNavigationBarSample/HidingNavigationBarSample/Images.xcassets/AppIcon.appiconset/Contents.json
index 118c98f..b8236c6 100644
--- a/HidingNavigationBarSample/HidingNavigationBarSample/Images.xcassets/AppIcon.appiconset/Contents.json
+++ b/HidingNavigationBarSample/HidingNavigationBarSample/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -1,5 +1,15 @@
 {
   "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
     {
       "idiom" : "iphone",
       "size" : "29x29",