如何從didReceiveRemoteNotification獲取數據返回數據？

Question

與swift3運行在xcode8

下面是AppDelegate.swift

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) { 
    print("==== didReceiveRemoteNotification ====") 
    print(userInfo) 
} 

我的代碼時，我得到的通知，並點擊它，我的調試區將如何像下面

==== didReceiveRemoteNotification ==== 
[AnyHashable("type"): order, AnyHashable("aps"): { 
    alert = "[TestMessage]"; 
    badge = "<null>"; 
    category = alert; 
    sound = default; 
}, AnyHashable("url"): http://www.google.com] 

我的問題是我如何使用userInfo從AnyHashable（「url」）獲取數據，即「www.google.com」？

我嘗試

print(userInfo[AnyHashable("url")]) 

但在調試區輸出

Optional(http://www.google.com) 

Answer 1

if let url = userInfo["url"] as? String { 
    //do whatever you need with the url 
} 

Answer 2

嘗試print(userInfo[AnyHashable("url")] as? String ?? "")或者你可以將它轉換爲URL

Answer 3

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) { 
    if let aps = userInfo["aps"] as? NSDictionary { 
     print(aps) 
     let alert = (aps.object(forKey: "alert") as? String)! 
    } 

    let url = userInfo?["url"] as? String { 
     print(url) 
    } 
}