回复：https://www.facebook.com/connect/login_success.html#access_token=BLAHTOKENRESPONSE&expires_in=5114338
当SafariViewController重定向时,我想获取响应URL并存储它,以便我可以获取令牌.这是我的代码：
import SafariServices
let kSafariViewControllerCloseNotification = "kSafariViewControllerCloseNotification"
import UIKit
// facebook OAuth URL for service
let authURL = NSURL(string: "https://www.facebook.com/dialog/oauth?client_id=3627644767&redirect_uri=https://www.facebook.com/connect/login_success.html&scope=basic_info,email,public_profile,user_about_me,user_activities,user_birthday,user_education_history,user_friends,user_interests,user_likes,user_location,user_photos,user_relationship_details&response_type=token")
class ViewController: UIViewController,SFSafariViewControllerDelegate {
var safariVC: SFSafariViewController?
@IBOutlet weak var loginButton: UIButton!
@IBAction func loginButtonTapped(sender: UIButton) {
safariVC = SFSafariViewController(URL: authURL!)
safariVC!.delegate = self
self.presentViewController(safariVC!,animated: true,completion: nil)
}
override func viewDidLoad() {
super.viewDidLoad()
// not firing the safariLogin function below
NSNotificationCenter.defaultCenter().addObserver(self,selector: #selector(ViewController.safariLogin(_:)),name: kSafariViewControllerCloseNotification,object: nil)
}
func safariLogin(notification: NSNotification) {
print("Safari Login call")
// get the url form the auth callback
let url = notification.object as! NSURL
print(url)
self.safariVC!.dismissViewControllerAnimated(true,completion: nil)
}
func application(application: UIApplication,openURL url: NSURL,sourceApplication: String?,annotation: AnyObject) -> Bool {
print("application call")
// just making sure we send the notification when the URL is opened in SFSafariViewController
if (sourceApplication == "com.application.SafariViewTest") {
NSNotificationCenter.defaultCenter().postNotificationName(kSafariViewControllerCloseNotification,object: url)
return true
}
return true
}
}
它打开authURL并重定向到正确的响应URL,但观察者不会触发safariLogin函数来获取URL.任何帮助将非常感激！
非常感谢！
iOS 12 Beta已经弃用了SFAuthenticationSession(见下文)而支持ASWebAuthenticationSession.看起来它的使用方式完全相同,但需要新的AuthenticationServices框架.
iOS 11
iOS 11引入了SFAuthenticationSession,它更容易处理.鉴于其性质,此测试版API可能仍会发生变化,但互联网上已有几个例子(1,2).首先,您需要一个使用身份验证请求的结果调用的完成处理程序：
let completion : SFAuthenticationSession.CompletionHandler = { (callBack:URL?,error:Error?) in
guard error == nil,let successURL = callBack else {
return
}
let oauthToken = NSURLComponents(string: (successURL.absoluteString))?.queryItems?.filter({$0.name == "oauth_token"}).first
// Do what you have to do...
}
然后,您只需创建一个SFAuthenticationSession并启动它.
let authURL = "https://the.service.you/want/toAuthorizeWith?..." let scheme = "YOURSCHEME://" let authSession = SFAuthenticationSession(url: authURL,callbackURLScheme: scheme,completionHandler: completion) authSession.start()
iOS 10及之前的版本
正如一些人在评论中指出的那样,接受的答案是不完整的,不会单独发挥作用.漫步在Strawberry Code的博客文章中,可以找到link to the related GitHub project.该项目的README.MD解释了设置的关键部分,即将重定向URI添加到Info.plist.所以这一切都是这样的：
AppDelegate.swift
func application(_ app: UIApplication,open url: URL,options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {
if let sourceApplication = options[.sourceApplication] {
if (String(describing: sourceApplication) == "com.apple.SafariViewService") {
NotificationCenter.default.post(name: Notification.Name("CallbackNotification"),object: url)
return true
}
}
return false
}
ViewController.swift
注册通知以在合理的地方呼叫您的处理程序.我建议不要在viewDidLoad()中进行,而只是在实际呈现SFSafariViewController之前.
NotificationCenter.default.addObserver(self,selector: #selector(safariLogin(_:)),name: Notification.Name("CallbackNotification"),object: nil)
let safariVC = SFSafariViewController(URL: authURL)
safariVC.delegate = self
self.present(safariVC,completion: nil)
然后删除处理程序中的observance：
@objc func safariLogin(_ notification : Notification) {
NotificationCenter.default.removeObserver(self,object: nil)
guard let url = notification.object as? URL else {
return
}
// Parse url ...
}
请记住,用户可以通过点击Done按钮来关闭SFSafariViewController,所以一定要采用SFSafariViewControllerDelegate协议并删除这样的遵守：
func safariViewControllerDidFinish(_ controller: SFSafariViewController) {
NotificationCenter.default.removeObserver(self,object: nil)
}
的Info.plist
要使其全部工作,您需要将重定向URI方案添加到Info.plist：
<key>CFBundleURLTypes</key>
<array>
<dict>
<key>CFBundleURLName</key>
<string>com.YOUR.BUNDLE.IDENTIFIER</string>
<key>CFBundleURLSchemes</key>
<array>
<string>YOURSCHEME</string>
</array>
</dict>
</array>
