如何快速使用NSURLConnectioncompleteHandler [英] How to use NSURLConnection completionHandler with swift

问题描述

有人知道处理程序(块)如何快速工作吗?我正在尝试使此代码运行，但我找不到任何用于completeHandler的正确语法的文档.

Does anybody know how handlers (blocks) work in swift? I am trying to get this code running but i can't find any documentation of the right syntax for the completionHandler.

let url:NSURL = NSURL(string:"some url")
let request:NSURLRequest = NSURLRequest(URL:url)
let queue:NSOperationQueue = NSOperationQueue()

NSURLConnection.sendAsynchronousRequest(request:request, queue:queue, completionHandler handler:((NSURLResponse!, NSData!, NSError!) -> Void)!)

推荐答案

像这样:

NSURLConnection.sendAsynchronousRequest(request, queue: queue, completionHandler:{ response, data, error in /* Your code */ })

或更详细的变体.

NSURLConnection.sendAsynchronousRequest(request, queue: queue, completionHandler:{ (response: NSURLResponse!, data: NSData!, error: NSError!) -> Void in
    /* Your code */
})

这篇关于如何快速使用NSURLConnectioncompleteHandler的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！