使用iOS 8的Swift 3中的Alamofire

Question

我已经更新到最新版本的Xcode(8),在将代码升级到Swift 3之后,Alamofire突然停止工作并抛出了很多错误.

经过大量的研究,我发现Alamofire for Swift 3与iOS9 +兼容,所以现在我必须找到另一个适用于iOS8 +的版本.

你知道我怎样才能为iOS8的Alamofire提供相同的功能？

Answer 1

我没有找到适用于 iOS 8 的 Alamofire 的“真正”替代品，因此我尝试使用 Apple Swift 本身的 URLRequest。

所以这是我经过多次尝试最终得到的例子（即使没有 SwiftyJSON）：

func searchPosts() -> [Post] {
    var request = URLRequest(url: URL(string: "https://www.mywebsite.com/searchPosts.php")!)
    request.httpMethod = "POST"
    let postString = ""
    request.httpBody = postString.data(using: .utf8)
    request.addValue("application/json", forHTTPHeaderField: "Content-Type")
    request.addValue("application/json", forHTTPHeaderField: "Accept")

    let task = URLSession.shared.dataTask(with: request) { data, response, error in

        if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 {
            print(httpStatus.statusCode)
            self.showError()
        } else {
            do {
                self.listPosts = [Post]()
                // Convert NSData to Dictionary where keys are of type String, and values are of any type
                let json = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.mutableContainers) as! [String:AnyObject]

                for field in json["posts"] as? [AnyObject] ?? [] {

                    // Create "Post" object
                    let post = Post(
                        id: (field["id"])! as! String,
                        title: (field["title"] as! String),
                        alias: (field["alias"] as! String),
                        catid: (field["catid"] as! String),
                        catname: (field["catname"] as! String),
                        date: (field["date"] as! String),
                        image: (field["image"] as! String),
                        introtext: (field["introtext"] as! String),
                        fulltext: (field["fulltext"] as! String)
                    )
                    self.listPosts.append(post)
                }

                DispatchQueue.main.async {
                    self.tableView.reloadData()
                }
            } catch {
                self.showError()
            }
        }
    }

    task.resume()

    return listPosts
}

我希望它可以帮助其他开发者。如果有人找到此问题的另一种可能的解决方案，我将不胜感激。

问候