Xcode Swift 3 NSURLSession.sharedSession
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Xcode Swift 3 NSURLSession.sharedSession
提问by Júlíus Gueni
Im trying to update my basic weather app i made with swift 2 to swift 3 this is my code:
我正在尝试更新我用 swift 2 到 swift 3 制作的基本天气应用程序，这是我的代码：
func getWeather(city: String) {
let path = "http://api.openweathermap.org/data/2.5/weather?q=London,uk&appid=095711373620570aa92ee530246dc8af"
let url = NSURL(string: path)
let session = NSURLSession.sharedSession()
let task = session.dataTaskWithURL(url!) { (data: NSData?, response: NSURLResponse?, error: NSError?) -> Void in
print(">>>> \(data)")
}
and NSURLSession.sharedSession(5th line) and NSURLResponse(6th line) print out an error
和 NSURLSession.sharedSession(5th line) 和 NSURLResponse(6th line) 打印出错误
回答by vadian
Don't annotate types in the completion handler signature and use the Swift 3 native structures:
不要在完成处理程序签名中注释类型并使用 Swift 3 本机结构：
func getWeather(city: String) {
let path = "http://api.openweathermap.org/data/2.5/weather?q=London,uk&appid=095711373620570aa92ee530246dc8af"
let url = URL(string: path)
let session = URLSession.shared
let task = session.dataTask(with:url!) { (data, response, error) -> Void in
print(">>>> \(data)")
}
回答by Matthew Becker
Swift 3 update
斯威夫特 3 更新
URLSession.shared.dataTask()
URLSession.shared.dataTask()
