black color

fixed scrolling performance, result of adding padding to the displaye…

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Change Log
 
+## 3.1.2
+
+Released on 16-9-2016
+
+#### Fixed
+- Scrolling performance slowed #145
+
 ## 3.1.1
 
 Released on 15-9-2016

SKPhotoBrowser.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "SKPhotoBrowser"
-  s.version      = "3.1.1"
+  s.version      = "3.1.2"
   s.summary      = "Simple PhotoBrowser/Viewer inspired by facebook, twitter photo browsers written by swift2.0."
   s.homepage     = "https://github.com/suzuki-0000/SKPhotoBrowser"
   s.license      = { :type => "MIT", :file => "LICENSE" }

SKPhotoBrowser.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		0AE527521DABB87500619FAD /* SKNavigationBar.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0AE527511DABB87500619FAD /* SKNavigationBar.swift */; };
 		210E53ED1C986D3A008DD5E3 /* UIView+Radius.swift in Sources */ = {isa = PBXBuildFile; fileRef = 210E53EC1C986D3A008DD5E3 /* UIView+Radius.swift */; };
 		210E53EF1C986D57008DD5E3 /* UIImage+Rotation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 210E53EE1C986D57008DD5E3 /* UIImage+Rotation.swift */; };
 		26C97AD51D0EB6870039F6CB /* SKCache.swift in Sources */ = {isa = PBXBuildFile; fileRef = 26C97AD41D0EB6870039F6CB /* SKCache.swift */; };
@@ -44,6 +45,7 @@
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
+		0AE527511DABB87500619FAD /* SKNavigationBar.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SKNavigationBar.swift; sourceTree = "<group>"; };
 		210E53EC1C986D3A008DD5E3 /* UIView+Radius.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = "UIView+Radius.swift"; path = "extensions/UIView+Radius.swift"; sourceTree = "<group>"; };
 		210E53EE1C986D57008DD5E3 /* UIImage+Rotation.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = "UIImage+Rotation.swift"; path = "extensions/UIImage+Rotation.swift"; sourceTree = "<group>"; };
 		26C97AD41D0EB6870039F6CB /* SKCache.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SKCache.swift; sourceTree = "<group>"; };
@@ -136,6 +138,7 @@
 				8909B5411BC791510060A053 /* SKPhotoBrowser.swift */,
 				89C24A811D657AD1005F09A9 /* SKPhotoBrowserOptions.swift */,
 				890A6F1F1D5D9E53003B01F0 /* SKToolbar.swift */,
+				0AE527511DABB87500619FAD /* SKNavigationBar.swift */,
 				8909B5331BC791280060A053 /* SKPhotoBrowser.h */,
 				8917B1AF1D5A13DE000CE1C4 /* SKPhotoBrowserDelegate.swift */,
 				89D0BA481D59966B002A811B /* SKMesurement.swift */,
@@ -300,6 +303,7 @@
 				8917B1B41D5A14B0000CE1C4 /* SKButtons.swift in Sources */,
 				89C24A821D657AD1005F09A9 /* SKPhotoBrowserOptions.swift in Sources */,
 				26C97AD51D0EB6870039F6CB /* SKCache.swift in Sources */,
+				0AE527521DABB87500619FAD /* SKNavigationBar.swift in Sources */,
 				210E53EF1C986D57008DD5E3 /* UIImage+Rotation.swift in Sources */,
 				8909B5431BC791510060A053 /* SKCaptionView.swift in Sources */,
 				8909B5491BC791510060A053 /* SKPhotoBrowser.swift in Sources */,

SKPhotoBrowser/SKNavigationBar.swift

@@ -0,0 +1,55 @@
+//
+//  SKNavigationBar.swift
+//  SKPhotoBrowser
+//
+//  Created by Григорий Уланов on 10.10.16.
+//  Copyright © 2016 suzuki_keishi. All rights reserved.
+//
+
+import UIKit
+
+class SKNavigationBar: UINavigationBar {
+    var showFrame: CGRect!
+    var hideFrame: CGRect!
+
+    private static let toolBarHeight: CGFloat = 64.0
+
+    private weak var browser: SKPhotoBrowser?
+
+    convenience init(browser: SKPhotoBrowser) {
+        self.init(frame: CGRect.zero)
+
+        self.browser = browser
+
+        translucent = false
+        tintColor = UIColor.whiteColor()
+        barTintColor = UIColor.blackColor()
+        titleTextAttributes = [NSForegroundColorAttributeName: UIColor.whiteColor()]
+
+        let navigationItem = UINavigationItem()
+        pushNavigationItem(navigationItem, animated: false)
+    }
+
+    func updateNavigationBar(currentPageIndex: Int) {
+        guard let browser = browser else { return }
+
+        if browser.numberOfPhotos > 1 {
+            self.topItem?.title = "\(currentPageIndex + 1) \(SKPhotoBrowserOptions.navigationBarCounterSepatator) \(browser.numberOfPhotos)"
+        } else {
+            self.topItem?.title = nil
+        }
+    }
+
+    func setNewFrame(rect: CGRect) {
+        self.frame = rect
+        showFrame = rect
+
+        hideFrame = CGRect(x: rect.origin.x, y: rect.origin.y - 20, width: rect.size.width, height: rect.size.height)
+    }
+
+    func updateFrame(parentSize: CGSize) {
+        let newRect = CGRect(x: 0, y: 0, width: parentSize.width, height: SKNavigationBar.toolBarHeight)
+        setNewFrame(newRect)
+    }
+
+}

SKPhotoBrowser/SKPhotoBrowser.swift

@@ -18,6 +18,8 @@ public class SKPhotoBrowser: UIViewController {
     private var closeButton: SKCloseButton!
     private var deleteButton: SKDeleteButton!
     private var toolbar: SKToolbar!
+
+    private var navigationBar: SKNavigationBar!
     
     // actions
     private var activityViewController: UIActivityViewController!
@@ -42,6 +44,10 @@ public class SKPhotoBrowser: UIViewController {
     
     // timer
     private var controlVisibilityTimer: NSTimer!
+
+    // blocks
+    public var willDismissPage: (() -> Void)?
+    public var didPresentPage: (() -> Void)?
     
     // delegate
     private let animator = SKAnimator()
@@ -112,11 +118,12 @@ public class SKPhotoBrowser: UIViewController {
         configureAppearance()
         configureCloseButton()
         configureDeleteButton()
+        configureNavigationBar()
         configureToolbar()
         
         animator.willPresent(self)
+        didPresentPage?()
     }
-
     
     override public func viewWillAppear(animated: Bool) {
         super.viewWillAppear(true)
@@ -135,6 +142,7 @@ public class SKPhotoBrowser: UIViewController {
         
         closeButton.updateFrame()
         deleteButton.updateFrame()
+        navigationBar.updateFrame(view.bounds.size)
         pagingScrollView.updateFrame(view.bounds, currentPageIndex: currentPageIndex)
         
         toolbar.frame = frameForToolbarAtOrientation()
@@ -184,6 +192,7 @@ public class SKPhotoBrowser: UIViewController {
         isPerformingLayout = true
         
         toolbar.updateToolbar(currentPageIndex)
+        navigationBar.updateNavigationBar(currentPageIndex)
         
         // reset local cache
         pagingScrollView.reload()
@@ -220,6 +229,7 @@ public class SKPhotoBrowser: UIViewController {
     public func determineAndClose() {
         delegate?.willDismissAtPageIndex?(currentPageIndex)
         animator.willDismiss(self)
+        willDismissPage?()
     }
 }
 
@@ -276,6 +286,7 @@ public extension SKPhotoBrowser {
             }
             isEndAnimationByToolBar = false
             toolbar.updateToolbar(currentPageIndex)
+            navigationBar.updateNavigationBar(currentPageIndex)
             
             let pageFrame = frameForPageAtIndex(index)
             pagingScrollView.animate(pageFrame)
@@ -445,7 +456,7 @@ internal extension SKPhotoBrowser {
             ? zoomingScrollView.center.y - viewHalfHeight
             : -(zoomingScrollView.center.y - viewHalfHeight)) / viewHalfHeight
         
-        view.backgroundColor = SKPhotoBrowserOptions.backgroundColor.colorWithAlphaComponent(max(0.7, offset))
+        view.alpha = max(0.7, offset)
         
         // gesture end
         if sender.state == .Ended {
@@ -470,6 +481,7 @@ internal extension SKPhotoBrowser {
                 UIView.setAnimationDuration(animationDuration)
                 UIView.setAnimationCurve(UIViewAnimationCurve.EaseIn)
                 view.backgroundColor = SKPhotoBrowserOptions.backgroundColor
+                view.alpha = 1
                 zoomingScrollView.center = CGPoint(x: finalX, y: finalY)
                 UIView.commitAnimations()
             }
@@ -559,6 +571,13 @@ private extension SKPhotoBrowser {
         deleteButton.hidden = !SKPhotoBrowserOptions.displayDeleteButton
         view.addSubview(deleteButton)
     }
+
+    func configureNavigationBar() {
+        navigationBar = SKNavigationBar(browser: self)
+        navigationBar.updateFrame(view.bounds.size)
+        navigationBar.hidden = !SKPhotoBrowserOptions.displayNavigationBar
+        view.addSubview(navigationBar)
+    }
     
     func configureToolbar() {
         toolbar = SKToolbar(frame: frameForToolbarAtOrientation(), browser: self)
@@ -584,6 +603,10 @@ private extension SKPhotoBrowser {
                     self.deleteButton.alpha = alpha
                     self.deleteButton.frame = hidden ? self.deleteButton.hideFrame : self.deleteButton.showFrame
                 }
+                if SKPhotoBrowserOptions.displayNavigationBar {
+                    self.navigationBar.alpha = alpha
+                    self.navigationBar.frame = hidden ? self.navigationBar.hideFrame : self.navigationBar.showFrame
+                }
                 captionViews.forEach { $0.alpha = alpha }
             },
             completion: nil)
@@ -607,6 +630,7 @@ private extension SKPhotoBrowser {
                 gotoPreviousPage()
             }
             toolbar.updateToolbar(currentPageIndex)
+            navigationBar.updateNavigationBar(currentPageIndex)
             
         } else if photos.count == 1 {
             dismissPhotoBrowser(animated: false)
@@ -636,6 +660,7 @@ extension SKPhotoBrowser: UIScrollViewDelegate {
         if currentPageIndex != previousCurrentPage {
             delegate?.didShowPhotoAtIndex?(currentPageIndex)
             toolbar.updateToolbar(currentPageIndex)
+            navigationBar.updateNavigationBar(currentPageIndex)
         }
     }
     

SKPhotoBrowser/SKPhotoBrowserDelegate.swift

@@ -71,5 +71,6 @@ import Foundation
      - Returns: the view to animate to
      */
     optional func viewForPhoto(browser: SKPhotoBrowser, index: Int) -> UIView?
+
 }
 

SKPhotoBrowser/SKPhotoBrowserOptions.swift

@@ -21,6 +21,7 @@ public struct SKPhotoBrowserOptions {
     public static var disableVerticalSwipe: Bool = false
     
     public static var displayCloseButton: Bool = true
+    public static var displayNavigationBar: Bool = true
     public static var displayDeleteButton: Bool = false
     
     public static var displayHorizontalScrollIndicator: Bool = true
@@ -30,13 +31,16 @@ public struct SKPhotoBrowserOptions {
     public static var enableZoomBlackArea: Bool = true
     public static var enableSingleTapDismiss: Bool = false
     
-    public static var imagePaddingX: CGFloat = 0
-    public static var imagePaddingY: CGFloat = 0
-    
     public static var backgroundColor = UIColor.blackColor()
     public static var textAndIconColor = UIColor.whiteColor()
     public static var toolbarTextShadowColor = UIColor.darkTextColor()
+
+    public static var navigationBarCounterSepatator: String = "из"
     
     public static var toolbarFont = UIFont(name: "Helvetica", size: 16.0)
     public static var captionFont = UIFont.systemFontOfSize(17.0)
-}
+    
+    // FIXED: Scrolling performance slowed #145
+    // public static var imagePaddingX: CGFloat = 0
+    // public static var imagePaddingY: CGFloat = 0
+}

SKPhotoBrowser/SKZoomingScrollView.swift

@@ -183,20 +183,22 @@ public class SKZoomingScrollView: UIScrollView {
         
         if let image = photo.underlyingImage {
             
+            // FIXED: Scrolling performance slowed #145
+ 
             // create padding
-            let width: CGFloat = image.size.width + SKPhotoBrowserOptions.imagePaddingX
+            // let width: CGFloat = image.size.width + SKPhotoBrowserOptions.imagePaddingX
-            let height: CGFloat = image.size.height + SKPhotoBrowserOptions.imagePaddingY;
+            // let height: CGFloat = image.size.height + SKPhotoBrowserOptions.imagePaddingY;
-            UIGraphicsBeginImageContextWithOptions(CGSizeMake(width, height), false, 0.0);
+            // UIGraphicsBeginImageContextWithOptions(CGSizeMake(width, height), false, 0.0);
-            let context: CGContextRef = UIGraphicsGetCurrentContext()!;
+            // let context: CGContextRef = UIGraphicsGetCurrentContext()!;
-            UIGraphicsPushContext(context);
+            // UIGraphicsPushContext(context);
-            let origin: CGPoint = CGPointMake((width - image.size.width) / 2, (height - image.size.height) / 2);
+            // let origin: CGPoint = CGPointMake((width - image.size.width) / 2, (height - image.size.height) / 2);
-            image.drawAtPoint(origin)
+            // image.drawAtPoint(origin)
-            UIGraphicsPopContext();
+            // UIGraphicsPopContext();
-            let imageWithPadding = UIGraphicsGetImageFromCurrentImageContext();
+            // let imageWithPadding = UIGraphicsGetImageFromCurrentImageContext();
-            UIGraphicsEndImageContext();
+            // UIGraphicsEndImageContext();
 
             // image
-            photoImageView.image = imageWithPadding
+            photoImageView.image = image
             photoImageView.contentMode = photo.contentMode
             photoImageView.backgroundColor = SKPhotoBrowserOptions.backgroundColor
             
@@ -336,4 +338,4 @@ private extension SKZoomingScrollView {
         
         return CGRect(x: x, y: y, width: w, height: h)
     }
-}
+}