WebKit Changes

WebKit

Modified WKBackForwardList.backItem

	Declaration
From	var backItem: WKBackForwardListItem! { get }
To	var backItem: WKBackForwardListItem? { get }

Modified WKBackForwardList.backList

	Declaration
From	var backList: [AnyObject]! { get }
To	var backList: [AnyObject] { get }

Modified WKBackForwardList.currentItem

	Declaration
From	var currentItem: WKBackForwardListItem! { get }
To	var currentItem: WKBackForwardListItem? { get }

Modified WKBackForwardList.forwardItem

	Declaration
From	var forwardItem: WKBackForwardListItem! { get }
To	var forwardItem: WKBackForwardListItem? { get }

Modified WKBackForwardList.forwardList

	Declaration
From	var forwardList: [AnyObject]! { get }
To	var forwardList: [AnyObject] { get }

Modified WKBackForwardList.itemAtIndex(Int) -> WKBackForwardListItem?

	Declaration	Introduction
From	func itemAtIndex(_ index: Int) -> WKBackForwardListItem!	iOS 8.0
To	func itemAtIndex(_ index: Int) -> WKBackForwardListItem?	iOS 8.1

Modified WKBackForwardListItem.URL

	Declaration
From	@NSCopying var URL: NSURL! { get }
To	@NSCopying var URL: NSURL { get }

Modified WKBackForwardListItem.initialURL

	Declaration
From	@NSCopying var initialURL: NSURL! { get }
To	@NSCopying var initialURL: NSURL { get }

Modified WKBackForwardListItem.title

	Declaration
From	var title: String! { get }
To	var title: String? { get }

Modified WKFrameInfo.request

	Declaration
From	@NSCopying var request: NSURLRequest! { get }
To	@NSCopying var request: NSURLRequest { get }

Modified WKNavigationAction.request

	Declaration
From	@NSCopying var request: NSURLRequest! { get }
To	@NSCopying var request: NSURLRequest { get }

Modified WKNavigationAction.sourceFrame

	Declaration
From	@NSCopying var sourceFrame: WKFrameInfo! { get }
To	@NSCopying var sourceFrame: WKFrameInfo? { get }

Modified WKNavigationAction.targetFrame

	Declaration
From	@NSCopying var targetFrame: WKFrameInfo! { get }
To	@NSCopying var targetFrame: WKFrameInfo? { get }

Modified WKNavigationDelegate.webView(WKWebView, decidePolicyForNavigationAction: WKNavigationAction, decisionHandler:(WKNavigationActionPolicy) -> Void)

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, decidePolicyForNavigationAction navigationAction: WKNavigationAction!, decisionHandler decisionHandler: ((WKNavigationActionPolicy) -> Void)!)	iOS 8.0
To	optional func webView(_ webView: WKWebView, decidePolicyForNavigationAction navigationAction: WKNavigationAction, decisionHandler decisionHandler: (WKNavigationActionPolicy) -> Void)	iOS 8.1

Declaration

Introduction

From

optional func webView(_ webView: WKWebView!, decidePolicyForNavigationAction navigationAction: WKNavigationAction!, decisionHandler decisionHandler: ((WKNavigationActionPolicy) -> Void)!)

iOS 8.0

optional func webView(_ webView: WKWebView, decidePolicyForNavigationAction navigationAction: WKNavigationAction, decisionHandler decisionHandler: (WKNavigationActionPolicy) -> Void)

iOS 8.1

Modified WKNavigationDelegate.webView(WKWebView, decidePolicyForNavigationResponse: WKNavigationResponse, decisionHandler:(WKNavigationResponsePolicy) -> Void)

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, decidePolicyForNavigationResponse navigationResponse: WKNavigationResponse!, decisionHandler decisionHandler: ((WKNavigationResponsePolicy) -> Void)!)	iOS 8.0
To	optional func webView(_ webView: WKWebView, decidePolicyForNavigationResponse navigationResponse: WKNavigationResponse, decisionHandler decisionHandler: (WKNavigationResponsePolicy) -> Void)	iOS 8.1

Declaration

Introduction

From

optional func webView(_ webView: WKWebView!, decidePolicyForNavigationResponse navigationResponse: WKNavigationResponse!, decisionHandler decisionHandler: ((WKNavigationResponsePolicy) -> Void)!)

iOS 8.0

optional func webView(_ webView: WKWebView, decidePolicyForNavigationResponse navigationResponse: WKNavigationResponse, decisionHandler decisionHandler: (WKNavigationResponsePolicy) -> Void)

iOS 8.1

Modified WKNavigationDelegate.webView(WKWebView, didCommitNavigation: WKNavigation!)

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, didCommitNavigation navigation: WKNavigation!)	iOS 8.0
To	optional func webView(_ webView: WKWebView, didCommitNavigation navigation: WKNavigation!)	iOS 8.1

Modified WKNavigationDelegate.webView(WKWebView, didFailNavigation: WKNavigation!, withError: NSError)

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, didFailNavigation navigation: WKNavigation!, withError error: NSError!)	iOS 8.0
To	optional func webView(_ webView: WKWebView, didFailNavigation navigation: WKNavigation!, withError error: NSError)	iOS 8.1

Declaration

Introduction

From

optional func webView(_ webView: WKWebView!, didFailNavigation navigation: WKNavigation!, withError error: NSError!)

iOS 8.0

optional func webView(_ webView: WKWebView, didFailNavigation navigation: WKNavigation!, withError error: NSError)

iOS 8.1

Modified WKNavigationDelegate.webView(WKWebView, didFailProvisionalNavigation: WKNavigation!, withError: NSError)

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, didFailProvisionalNavigation navigation: WKNavigation!, withError error: NSError!)	iOS 8.0
To	optional func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: NSError)	iOS 8.1

Declaration

Introduction

From

optional func webView(_ webView: WKWebView!, didFailProvisionalNavigation navigation: WKNavigation!, withError error: NSError!)

iOS 8.0

optional func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: NSError)

iOS 8.1

Modified WKNavigationDelegate.webView(WKWebView, didFinishNavigation: WKNavigation!)

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, didFinishNavigation navigation: WKNavigation!)	iOS 8.0
To	optional func webView(_ webView: WKWebView, didFinishNavigation navigation: WKNavigation!)	iOS 8.1

Modified WKNavigationDelegate.webView(WKWebView, didReceiveAuthenticationChallenge: NSURLAuthenticationChallenge, completionHandler:(NSURLSessionAuthChallengeDisposition, NSURLCredential!) -> Void)

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, didReceiveAuthenticationChallenge challenge: NSURLAuthenticationChallenge!, completionHandler completionHandler: ((NSURLSessionAuthChallengeDisposition, NSURLCredential!) -> Void)!)	iOS 8.0
To	optional func webView(_ webView: WKWebView, didReceiveAuthenticationChallenge challenge: NSURLAuthenticationChallenge, completionHandler completionHandler: (NSURLSessionAuthChallengeDisposition, NSURLCredential!) -> Void)	iOS 8.1

Declaration

Introduction

From

optional func webView(_ webView: WKWebView!, didReceiveAuthenticationChallenge challenge: NSURLAuthenticationChallenge!, completionHandler completionHandler: ((NSURLSessionAuthChallengeDisposition, NSURLCredential!) -> Void)!)

iOS 8.0

optional func webView(_ webView: WKWebView, didReceiveAuthenticationChallenge challenge: NSURLAuthenticationChallenge, completionHandler completionHandler: (NSURLSessionAuthChallengeDisposition, NSURLCredential!) -> Void)

iOS 8.1

Modified WKNavigationDelegate.webView(WKWebView, didReceiveServerRedirectForProvisionalNavigation: WKNavigation!)

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!)	iOS 8.0
To	optional func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!)	iOS 8.1

Declaration

Introduction

From

optional func webView(_ webView: WKWebView!, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!)

iOS 8.0

optional func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!)

iOS 8.1

Modified WKNavigationDelegate.webView(WKWebView, didStartProvisionalNavigation: WKNavigation!)

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, didStartProvisionalNavigation navigation: WKNavigation!)	iOS 8.0
To	optional func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!)	iOS 8.1

Declaration

Introduction

From

optional func webView(_ webView: WKWebView!, didStartProvisionalNavigation navigation: WKNavigation!)

iOS 8.0

optional func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!)

iOS 8.1

Modified WKNavigationResponse.response

	Declaration
From	@NSCopying var response: NSURLResponse! { get }
To	@NSCopying var response: NSURLResponse { get }

Modified WKScriptMessage.body

	Declaration
From	@NSCopying var body: AnyObject! { get }
To	@NSCopying var body: AnyObject { get }

Modified WKScriptMessage.frameInfo

	Declaration
From	@NSCopying var frameInfo: WKFrameInfo! { get }
To	@NSCopying var frameInfo: WKFrameInfo { get }

Modified WKScriptMessage.name

	Declaration
From	var name: String! { get }
To	var name: String { get }

Modified WKScriptMessage.webView

	Declaration
From	weak var webView: WKWebView! { get }
To	weak var webView: WKWebView? { get }

Modified WKScriptMessageHandler.userContentController(WKUserContentController, didReceiveScriptMessage: WKScriptMessage)

	Declaration	Introduction
From	func userContentController(_ userContentController: WKUserContentController!, didReceiveScriptMessage message: WKScriptMessage!)	iOS 8.0
To	func userContentController(_ userContentController: WKUserContentController, didReceiveScriptMessage message: WKScriptMessage)	iOS 8.1

Declaration

Introduction

From

func userContentController(_ userContentController: WKUserContentController!, didReceiveScriptMessage message: WKScriptMessage!)

iOS 8.0

func userContentController(_ userContentController: WKUserContentController, didReceiveScriptMessage message: WKScriptMessage)

iOS 8.1

Modified WKUIDelegate.webView(WKWebView, createWebViewWithConfiguration: WKWebViewConfiguration, forNavigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView?

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, createWebViewWithConfiguration configuration: WKWebViewConfiguration!, forNavigationAction navigationAction: WKNavigationAction!, windowFeatures windowFeatures: WKWindowFeatures!) -> WKWebView!	iOS 8.0
To	optional func webView(_ webView: WKWebView, createWebViewWithConfiguration configuration: WKWebViewConfiguration, forNavigationAction navigationAction: WKNavigationAction, windowFeatures windowFeatures: WKWindowFeatures) -> WKWebView?	iOS 8.1

Declaration

Introduction

From

optional func webView(_ webView: WKWebView!, createWebViewWithConfiguration configuration: WKWebViewConfiguration!, forNavigationAction navigationAction: WKNavigationAction!, windowFeatures windowFeatures: WKWindowFeatures!) -> WKWebView!

iOS 8.0

optional func webView(_ webView: WKWebView, createWebViewWithConfiguration configuration: WKWebViewConfiguration, forNavigationAction navigationAction: WKNavigationAction, windowFeatures windowFeatures: WKWindowFeatures) -> WKWebView?

iOS 8.1

Modified WKUIDelegate.webView(WKWebView, runJavaScriptAlertPanelWithMessage: String, initiatedByFrame: WKFrameInfo, completionHandler:() -> Void)

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, runJavaScriptAlertPanelWithMessage message: String!, initiatedByFrame frame: WKFrameInfo!, completionHandler completionHandler: (() -> Void)!)	iOS 8.0
To	optional func webView(_ webView: WKWebView, runJavaScriptAlertPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler completionHandler: () -> Void)	iOS 8.1

Declaration

Introduction

From

optional func webView(_ webView: WKWebView!, runJavaScriptAlertPanelWithMessage message: String!, initiatedByFrame frame: WKFrameInfo!, completionHandler completionHandler: (() -> Void)!)

iOS 8.0

optional func webView(_ webView: WKWebView, runJavaScriptAlertPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler completionHandler: () -> Void)

iOS 8.1

Modified WKUIDelegate.webView(WKWebView, runJavaScriptConfirmPanelWithMessage: String, initiatedByFrame: WKFrameInfo, completionHandler:(Bool) -> Void)

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, runJavaScriptConfirmPanelWithMessage message: String!, initiatedByFrame frame: WKFrameInfo!, completionHandler completionHandler: ((Bool) -> Void)!)	iOS 8.0
To	optional func webView(_ webView: WKWebView, runJavaScriptConfirmPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler completionHandler: (Bool) -> Void)	iOS 8.1

Declaration

Introduction

From

optional func webView(_ webView: WKWebView!, runJavaScriptConfirmPanelWithMessage message: String!, initiatedByFrame frame: WKFrameInfo!, completionHandler completionHandler: ((Bool) -> Void)!)

iOS 8.0

optional func webView(_ webView: WKWebView, runJavaScriptConfirmPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler completionHandler: (Bool) -> Void)

iOS 8.1

Modified WKUIDelegate.webView(WKWebView, runJavaScriptTextInputPanelWithPrompt: String, defaultText: String?, initiatedByFrame: WKFrameInfo, completionHandler:(String!) -> Void)

	Declaration	Introduction
From	optional func webView(_ webView: WKWebView!, runJavaScriptTextInputPanelWithPrompt prompt: String!, defaultText defaultText: String!, initiatedByFrame frame: WKFrameInfo!, completionHandler completionHandler: ((String!) -> Void)!)	iOS 8.0
To	optional func webView(_ webView: WKWebView, runJavaScriptTextInputPanelWithPrompt prompt: String, defaultText defaultText: String?, initiatedByFrame frame: WKFrameInfo, completionHandler completionHandler: (String!) -> Void)	iOS 8.1

Declaration

Introduction

From

optional func webView(_ webView: WKWebView!, runJavaScriptTextInputPanelWithPrompt prompt: String!, defaultText defaultText: String!, initiatedByFrame frame: WKFrameInfo!, completionHandler completionHandler: ((String!) -> Void)!)

iOS 8.0

optional func webView(_ webView: WKWebView, runJavaScriptTextInputPanelWithPrompt prompt: String, defaultText defaultText: String?, initiatedByFrame frame: WKFrameInfo, completionHandler completionHandler: (String!) -> Void)

iOS 8.1

Modified WKUserContentController.addScriptMessageHandler(WKScriptMessageHandler, name: String)

	Declaration	Introduction
From	func addScriptMessageHandler(_ scriptMessageHandler: WKScriptMessageHandler!, name name: String!)	iOS 8.0
To	func addScriptMessageHandler(_ scriptMessageHandler: WKScriptMessageHandler, name name: String)	iOS 8.1

Modified WKUserContentController.addUserScript(WKUserScript)

	Declaration	Introduction
From	func addUserScript(_ userScript: WKUserScript!)	iOS 8.0
To	func addUserScript(_ userScript: WKUserScript)	iOS 8.1

Modified WKUserContentController.removeScriptMessageHandlerForName(String)

	Declaration	Introduction
From	func removeScriptMessageHandlerForName(_ name: String!)	iOS 8.0
To	func removeScriptMessageHandlerForName(_ name: String)	iOS 8.1

Modified WKUserContentController.userScripts

	Declaration
From	var userScripts: [AnyObject]! { get }
To	var userScripts: [AnyObject] { get }

Modified WKUserScript.source

	Declaration
From	var source: String! { get }
To	var source: String { get }

Modified WKUserScript.init(source: String, injectionTime: WKUserScriptInjectionTime, forMainFrameOnly: Bool)

	Declaration	Introduction
From	init(source source: String!, injectionTime injectionTime: WKUserScriptInjectionTime, forMainFrameOnly forMainFrameOnly: Bool)	iOS 8.0
To	init(source source: String, injectionTime injectionTime: WKUserScriptInjectionTime, forMainFrameOnly forMainFrameOnly: Bool)	iOS 8.1

Declaration

Introduction

From

init(source source: String!, injectionTime injectionTime: WKUserScriptInjectionTime, forMainFrameOnly forMainFrameOnly: Bool)

iOS 8.0

init(source source: String, injectionTime injectionTime: WKUserScriptInjectionTime, forMainFrameOnly forMainFrameOnly: Bool)

iOS 8.1

Modified WKWebView.UIDelegate

	Declaration
From	weak var UIDelegate: WKUIDelegate!
To	weak var UIDelegate: WKUIDelegate?

Modified WKWebView.URL

	Declaration
From	@NSCopying var URL: NSURL! { get }
To	@NSCopying var URL: NSURL? { get }

Modified WKWebView.backForwardList

	Declaration
From	var backForwardList: WKBackForwardList! { get }
To	var backForwardList: WKBackForwardList { get }

Modified WKWebView.configuration

	Declaration
From	@NSCopying var configuration: WKWebViewConfiguration! { get }
To	@NSCopying var configuration: WKWebViewConfiguration { get }

Modified WKWebView.evaluateJavaScript(String, completionHandler:((AnyObject!, NSError!) -> Void)?)

	Declaration	Introduction
From	func evaluateJavaScript(_ javaScriptString: String!, completionHandler completionHandler: ((AnyObject!, NSError!) -> Void)!)	iOS 8.0
To	func evaluateJavaScript(_ javaScriptString: String, completionHandler completionHandler: ((AnyObject!, NSError!) -> Void)?)	iOS 8.1

Declaration

Introduction

From

func evaluateJavaScript(_ javaScriptString: String!, completionHandler completionHandler: ((AnyObject!, NSError!) -> Void)!)

iOS 8.0

func evaluateJavaScript(_ javaScriptString: String, completionHandler completionHandler: ((AnyObject!, NSError!) -> Void)?)

iOS 8.1

Modified WKWebView.init(frame: CGRect, configuration: WKWebViewConfiguration)

	Declaration	Introduction
From	init(frame frame: CGRect, configuration configuration: WKWebViewConfiguration!)	iOS 8.0
To	init(frame frame: CGRect, configuration configuration: WKWebViewConfiguration)	iOS 8.1

Modified WKWebView.goBack() -> WKNavigation?

	Declaration	Introduction
From	func goBack() -> WKNavigation!	iOS 8.0
To	func goBack() -> WKNavigation?	iOS 8.1

Modified WKWebView.goForward() -> WKNavigation?

	Declaration	Introduction
From	func goForward() -> WKNavigation!	iOS 8.0
To	func goForward() -> WKNavigation?	iOS 8.1

Modified WKWebView.goToBackForwardListItem(WKBackForwardListItem) -> WKNavigation?

	Declaration	Introduction
From	func goToBackForwardListItem(_ item: WKBackForwardListItem!) -> WKNavigation!	iOS 8.0
To	func goToBackForwardListItem(_ item: WKBackForwardListItem) -> WKNavigation?	iOS 8.1

Modified WKWebView.loadHTMLString(String, baseURL: NSURL?) -> WKNavigation?

	Declaration	Introduction
From	func loadHTMLString(_ string: String!, baseURL baseURL: NSURL!) -> WKNavigation!	iOS 8.0
To	func loadHTMLString(_ string: String, baseURL baseURL: NSURL?) -> WKNavigation?	iOS 8.1

Modified WKWebView.loadRequest(NSURLRequest) -> WKNavigation?

	Declaration	Introduction
From	func loadRequest(_ request: NSURLRequest!) -> WKNavigation!	iOS 8.0
To	func loadRequest(_ request: NSURLRequest) -> WKNavigation?	iOS 8.1

Modified WKWebView.navigationDelegate

	Declaration
From	weak var navigationDelegate: WKNavigationDelegate!
To	weak var navigationDelegate: WKNavigationDelegate?

Modified WKWebView.reload() -> WKNavigation?

	Declaration	Introduction
From	func reload() -> WKNavigation!	iOS 8.0
To	func reload() -> WKNavigation?	iOS 8.1

Modified WKWebView.reloadFromOrigin() -> WKNavigation?

	Declaration	Introduction
From	func reloadFromOrigin() -> WKNavigation!	iOS 8.0
To	func reloadFromOrigin() -> WKNavigation?	iOS 8.1

Modified WKWebView.scrollView

	Declaration
From	var scrollView: UIScrollView! { get }
To	var scrollView: UIScrollView { get }

Modified WKWebView.title

	Declaration
From	var title: String! { get }
To	var title: String? { get }

Modified WKWebViewConfiguration.preferences

	Declaration
From	var preferences: WKPreferences!
To	var preferences: WKPreferences

Modified WKWebViewConfiguration.processPool

	Declaration
From	var processPool: WKProcessPool!
To	var processPool: WKProcessPool

Modified WKWebViewConfiguration.userContentController

	Declaration
From	var userContentController: WKUserContentController!
To	var userContentController: WKUserContentController

Modified WKWindowFeatures.allowsResizing

	Declaration
From	var allowsResizing: NSNumber! { get }
To	var allowsResizing: NSNumber? { get }

Modified WKWindowFeatures.height

	Declaration
From	var height: NSNumber! { get }
To	var height: NSNumber? { get }

Modified WKWindowFeatures.menuBarVisibility

	Declaration
From	var menuBarVisibility: NSNumber! { get }
To	var menuBarVisibility: NSNumber? { get }

Modified WKWindowFeatures.statusBarVisibility

	Declaration
From	var statusBarVisibility: NSNumber! { get }
To	var statusBarVisibility: NSNumber? { get }

Modified WKWindowFeatures.toolbarsVisibility

	Declaration
From	var toolbarsVisibility: NSNumber! { get }
To	var toolbarsVisibility: NSNumber? { get }

Modified WKWindowFeatures.width

	Declaration
From	var width: NSNumber! { get }
To	var width: NSNumber? { get }

Modified WKWindowFeatures.x

	Declaration
From	var x: NSNumber! { get }
To	var x: NSNumber? { get }

Modified WKWindowFeatures.y

	Declaration
From	var y: NSNumber! { get }
To	var y: NSNumber? { get }