import UIKit
import WebKit
class ViewController: UIViewController, WKNavigationDelegate {
var wkWebView: WKWebView!
let observerKeyName = ["estimatedProgress", "loading", "title", "URL", "hasOnlySecureContent", "canGoBack", "canGoForward"]
override func viewDidLoad() {
super.viewDidLoad()
wkWebView = WKWebView()
wkWebView.navigationDelegate = self
view = wkWebView
addObserver()
// スワイプで戻るを許可
wkWebView.allowsBackForwardNavigationGestures = true
if let url = URL(string:"https://gist.github.com/KentarouKanno/27d260c6d834f290266d") {
let req = NSURLRequest(url:url)
wkWebView.load(req as URLRequest)
}
}
// MARK: --- Observer ---
deinit {
removeOvserver()
}
func addObserver() {
observerKeyName.forEach{ wkWebView.addObserver(self, forKeyPath: $0, options: .new, context: nil)}
}
func removeOvserver() {
observerKeyName.forEach{ wkWebView.removeObserver(self, forKeyPath: $0) }
}
// プロパティ監視
override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey: Any]?, context: UnsafeMutableRawPointer?) {
if let keyPath = keyPath {
switch keyPath {
case "estimatedProgress":
if let change = change, let progress = change[NSKeyValueChangeKey.newKey] as? Float {
if(progress < 1.0) {
// プログレスバーを更新する
print("loading :\(progress)")
UIApplication.shared.isNetworkActivityIndicatorVisible = true
} else {
print("loaded : Finish")
UIApplication.shared.isNetworkActivityIndicatorVisible = false
}
}
case "loading" :
print("observe --- loading")
if let change = change, let loading = change[NSKeyValueChangeKey.newKey] as? NSNumber {
print(loading) // 0 => loading終了, 1 => loading開始
}
case "title" :
print("observe --- title")
if let change = change, let title = change[NSKeyValueChangeKey.newKey] as? String {
self.title = title
}
case "URL" :
print("observe --- URL")
if let change = change, let url = change[NSKeyValueChangeKey.newKey] as? NSURL {
print(url)
}
case "hasOnlySecureContent": print("observe --- hasOnlySecureContent")
case "canGoBack" :
print("observe --- canGoBack")
if let change = change, let canGoBack = change[NSKeyValueChangeKey.newKey] as? NSNumber {
print(canGoBack) // 0 => Back不可 , 1 => Back可能
}
case "canGoForward":
print("observe --- canGoForward")
if let change = change, let canGoForward = change[NSKeyValueChangeKey.newKey] as? NSNumber {
print(canGoForward) // 0 => Forward不可 , 1 => Forward可能
}
default: break
}
}
}
// MARK: --- WKNavigationDelegate ---
func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
// ページ読み込みが開始された時
print("didStartProvisionalNavigation")
}
func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {
// 遷移開始時
print("didCommitNavigation")
}
func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
// title = webView.title
// ページ読み込みが完了した時
print("didFinishNavigation")
}
func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
// 遷移中にエラーが発生した時
print("didFailNavigation")
}
func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!) {
// リダイレクトされた時
print("didReceiveServerRedirectForProvisionalNavigation")
}
func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {
// ページ読み込み時にエラーが発生した時
print("didFailProvisionalNavigation")
}
func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
// Webサイトにリクエストを送る前に判断する
decisionHandler(.allow) // .Allow or .Cancel
// ※.Cancelにすると処理がここで終了
print("request ---", navigationAction.request) // 遷移先に関してのNSURLRequestオブジェクト
// print(navigationAction.sourceFrame) // 遷移元に関してのWKFrameInfoオブジェクト
print("targetFrame ---",navigationAction.targetFrame ?? "") // 遷移先に関してのWKFrameInfoオブジェクト
print("navigationType ---",navigationAction.navigationType.rawValue) // 遷移の種類を示すenum値
/*
case LinkActivated = 0 : aタグによる遷移
case FormSubmitted = 1 : フォームの送信による遷移
case BackForward = 2 : 進む、戻るによる遷移
case Reload = 3 : 更新による遷移
case FormResubmitted = 4 : フォームの再送信による遷移
case Other = 5 : その他の方法による遷移
*/
print("decidePolicyForNavigationAction")
}
func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse, decisionHandler: @escaping (WKNavigationResponsePolicy) -> Void) {
// Webサイトからレスポンスが帰ってきた後に判断する
decisionHandler(.allow) // .Allow or .Cancel
// ※.CancelにするとdidFailProvisionalNavigationが呼ばれる
print("response ---", navigationResponse.response) // 遷移先に関してのNSURLResponseオブジェクト
print("forMainFrame ---", navigationResponse.isForMainFrame) // 遷移がmainFrameで行われるかを示すbool値？
print("canShowMIMEType ---", navigationResponse.canShowMIMEType) // 遷移先のMIMETypeが表示可能かどうかを示すbool値
print("decidePolicyForNavigationResponse")
}
/*
func webView(webView: WKWebView, didReceiveAuthenticationChallenge challenge: NSURLAuthenticationChallenge, completionHandler: (NSURLSessionAuthChallengeDisposition, NSURLCredential?) -> Void) {
print("didReceiveAuthenticationChallenge")
}
*/
}★ iOS9 ATS
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>★ blankページが開けない場合の対応その１
import UIKit
import WebKit
class ViewController: UIViewController, WKNavigationDelegate, WKUIDelegate {
var wkWebView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
wkWebView = WKWebView()
wkWebView.navigationDelegate = self
wkWebView.uiDelegate = self
view = wkWebView
// スワイプで戻るを許可
wkWebView.allowsBackForwardNavigationGestures = true
if let url = URL(string:"http://game.granbluefantasy.jp/#authentication") {
let req = NSURLRequest(url:url)
wkWebView.load(req as URLRequest)
}
}
func webView(_ webView: WKWebView, createWebViewWith configuration: WKWebViewConfiguration, for navigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView? {
guard let url = navigationAction.request.url else {
return nil
}
guard let targetFrame = navigationAction.targetFrame, targetFrame.isMainFrame else {
webView.load(URLRequest(url: url))
return nil
}
return nil
}
}★ blankページが開けない場合の対応その２
WKUIDelegate
wkWebView.uiDelegate = self
func webView(_ webView: WKWebView, createWebViewWith configuration: WKWebViewConfiguration, for navigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView? {
guard let url = navigationAction.request.url else {
return nil
}
guard let targetFrame = navigationAction.targetFrame, targetFrame.isMainFrame else {
webView.load(URLRequest(url: url))
return nil
}
return nil
}★ Create folder referenceで追加したhtmlを取得して表示する
import UIKit
import WebKit
class ViewController: UIViewController, WKNavigationDelegate, WKUIDelegate {
var wkWebView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
wkWebView = WKWebView()
wkWebView.navigationDelegate = self
wkWebView.uiDelegate = self
view = wkWebView
let path = Bundle.main.url(forResource: "html/lisence/lisence", withExtension: "html")
wkWebView.load(URLRequest(url: path!))
}
}