我使用的是Xcode 9.1和Swift 4，但我无法再通过Webview进行身份验证。以下是我的代码：
import UIKit
protocol AuthViewControllerDelegate{
func getAccessToken(_ code: String)
}
class AuthViewController: UIViewController, NSURLConnectionDelegate {
@IBOutlet weak var navItem: UINavigationItem!
@IBOutlet weak var webView: UIWebView!
var delegate: AuthViewControllerDelegate?
override func viewDidLoad() {
super.viewDidLoad()
var link: "https://home.nest.com/login/oauth2?client_id=…"
if let encodeURL = link.URLEncodedString(), let url = URL(string: encodeURL) {
webView.loadRequest(URLRequest(url: url))
}
}
override var preferredStatusBarStyle : UIStatusBarStyle {
return .lightContent
}
@IBAction func CancelPressed(_ sender: UIBarButtonItem) {
self.dismiss(animated: true, completion: nil)
}
func webView(_ webView: UIWebView, shouldStartLoadWithRequest request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool {
if let url = request.url?.absoluteString, url.contains("code=") {
if let code = getQueryStringParameter(url,param: "code"){
self.dismiss(animated: true, completion: { () -> Void in
UIApplication.shared.isNetworkActivityIndicatorVisible = false
self.delegate?.getAccessToken(code)
})
}
}
return true
}
func webViewDidStartLoad(_ webView: UIWebView){
UIApplication.shared.isNetworkActivityIndicatorVisible = true
}
func webViewDidFinishLoad(_ webView: UIWebView){
UIApplication.shared.isNetworkActivityIndicatorVisible = false
}
func getQueryStringParameter(_ url: String?, param: String) -> String? {
if let url = url, let urlComponents = URLComponents(string: url), let queryItems = (urlComponents.queryItems) {
return queryItems.filter({ (item) in item.name == param }).first?.value!
}
return nil
}
}
这是日志中出现的错误信息：
2017-11-07 20:49:30.836087+0000 TestApp[1851:1259046] TIC TCP 连接失败 [32:0x1c0365280]: 3:-9800 Err(-9800) 2017-11-07 20:49:30.836472+0000 TestApp[1851:1259046] NSURLSession/NSURLConnection HTTP 加载失败 (kCFStreamErrorDomainSSL, -9800) 2017-11-07 20:49:30.836578+0000 TestApp[1851:1259046] 任务 <0A675AA1-7110-4FCC-99B2-054380D22F01>.<0> HTTP 加载失败 (error code: -1200 [3:-9800]) 2017-11-07 20:49:30.837548+0000 TestApp[1851:1258708] NSURLConnection 错误码为 -1200
同时，我已经将以下内容添加到我的 .plist 文件中：
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>
注意：这段代码在Swift 3.2中完美运行。