添加查詢參數在Swift3

Question

在iOS中獲取URL我有

https://api.asiancar.com/api/applicationsettings

的URL它基本上是一個GET URL，所以我需要傳遞一個boolean「isMobile」和timestamp作爲查詢參數。如何實現這一目標作爲傳遞查詢後，最終的URL看起來像這樣：

https://api.asiancar.com/api/applicationsettings?timestamp=111122244556789879&isMobile=true

let queryItems = [ 
    NSURLQueryItem(timestamp: "1234568878788998989", isMobile: true), 
    NSURLQueryItem(timestamp: "1234568878788998989", isMobile: true) 
] 
let urlComps = NSURLComponents(string: "www.api.asiancar.com/api/applicationsettings")! 
urlComps.queryItems = queryItems 
let URL = urlComps.URL! 

我做正確的或任何其他修改？請告訴。

Answer 1

您可以通過使用字符串

嘗試另一種方式

let baseUrlString = "https://api.asiancar.com/api/" 
let timeStamp = 1234568878788998989 
let isMobile = true 
let settingsUrlString = "\(baseUrlString)applicationsettings?timestamp=\(timeStamp)&isMobile=\(isMobile)" 
print(settingsUrlString) 
let url = URL(string: settingsUrlString) 

輸出：https://api.asiancar.com/api/applicationsettings?timestamp=1234568878788998989&isMobile=true

Answer 2

除非你有子類NSURLQueryItem，那麼你的init方法是不正確的。每Apple's documentation爲NSURLQueryItem，init方法的簽名是：

init(name: String, value: String?) 

這意味着你的查詢項目應該這樣創建：

let queryItems = [NSURLQueryItem(name: "timestamp" value: "1234568878788998989"), NSURLQueryItem(name: "isMobile", value: "true")] 

這將正常它們添加到格式的URL你期待。

Answer 3

試試這個：

let API_PREFIX = "www.api.asiancar.com/api/applicationsettings" 

var url : URL? = URL.init(string: API_PREFIX + queryItems(dictionary: [name: "isMobile", value: "true"] as [String : Any])) 

func queryItems(dictionary: [String:Any]) -> String { 
     var components = URLComponents() 
     print(components.url!) 
     components.queryItems = dictionary.map { 
      URLQueryItem(name: $0, value: $1 as String) 
     } 
     return (components.url?.absoluteString)! 
    }