デリゲートを埋め込む
WKUIDelegate を埋め込む
class MyViewController: WKNavigationDelegate, WKUIDelegate {
}
_webview.uiDelegate をセットする
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.webView.uiDelegate = self
self.webView.navigationDelegate = self
}
webView:createWebViewWithConfiguration:メソッドを実装
対象URL(target=“_blank”)をSafariで開く
func webView(_ webView: WKWebView, createWebViewWith configuration: WKWebViewConfiguration, for navigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView? {
if navigationAction.targetFrame == nil {
if let url = navigationAction.request.url {
UIApplication.shared.open(url, options: [:], completionHandler: nil)
}
}
return nil
}