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ios Webview click link open safari iOS強制開safari

在webview裡面限制超連結點擊時必開新瀏覽器safari閱讀

必須在webview class 裡面引用  WKNavigationDelegate

原本方法是這樣
    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
        <#code#>

    }
修改其方法

    //MARK: - WKNavigationDelegate
    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
        var action: WKNavigationActionPolicy?
        
        //return前一定會執行的方法
        defer {
            decisionHandler(action ?? .allow)
        }
        
        //get webview的url
        guard let url = navigationAction.request.url else { return }
        //如果是超連結,網址前綴是https，就新開safari視窗，其他照常
        if navigationAction.navigationType == .linkActivated, url.absoluteString.hasPrefix("https://") {
            action = .cancel                  // Stop in WebView
            UIApplication.shared.open(url, options: [:], completionHandler: nil)
        }
    }


即可對內嵌在app的瀏覽器每次點擊連結時開safari瀏覽

來源
https://stackoverflow.com/questions/37509990/migrating-from-uiwebview-to-wkwebview
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