なぜこのコードは「Expected '、' separator？

Question

swift 3に移行すると、なぜこのコードは機能しなくなり、 '、'区切り記号が必要なのでしょうか？

あなたが (があるはずです .持っ

import UIKit 

    class ProfileButton: UIButton { 

     func setProfileImage(address: String?) { 
      self.setImage(UIImage(named: "iconProfile"), for: []) 
      if let img = address { 
       if !img.isEmpty { 
        URLSession.shared().dataTask(URLRequest.with: imgRequest(image: img) as URLRequest, completionHandler: {(data: Data?, response: URLResponse?, error: Error?) in 
         if let imageData = data, image = UIImage(data: imageData) { 
          dispatch_async(dispatch_get_main_queue()) { 
           self.setImage(image.profileImage(), forState: .Normal) 
          } 
         } else if let status = (response as? HTTPURLResponse)?.statusCode { 
          print("image loading status code: \(status)") 
         } 
        }).resume() 
       } 
      } 
     } 
    } 

Answer 1

：

URLSession.shared().dataTask(URLRequest.with: //... 

は次のようになります。

URLSession.shared().dataTask(URLRequest(with: //... 

あなたは運命のピラミッドの軽度のケースを持っているし。これはどうですか？

class ProfileButton: UIButton { 

    func setProfileImage(address: String) { 
     self.setImage(UIImage(named: "iconProfile"), for: []) 

     guard !address.isEmpty else { return } 

     let request = URLRequest(with: imgRequest(image: address) as URLRequest){ 
      data, response, error in 
      if let imageData = data, image = UIImage(data: imageData) { 
       dispatch_async(dispatch_get_main_queue()) { 
        self.setImage(image.profileImage(), forState: .Normal) 
       } 
      } else if let status = (response as? HTTPURLResponse)?.statusCode { 
       print("image loading status code: \(status)") 
      } 
     } 

     URLSession.shared().dataTask(request).resume() 
    } 
}