Comment télécharger le fichier pdf de json dans swift et alamofire dans ios?

Question

Comment télécharger un fichier PDF dans IOS en utilisant Swift 3.0 et Alamofire. Je peux récupérer l'URL avec nsurlsession. Mais je suis à la recherche de code alamofire. s'il vous plaît voir mon code.

func downloadPdffile(_ sender : UIButton) { 
    print(sender.tag) 
    print("ARRAY VALUES FROM CELL",totalSyllabusArray.object(at: sender.tag)) 
    var localDic :NSDictionary! 
    localDic = totalSyllabusArray.object(at: sender.tag) as! NSDictionary 
    let filepath = localDic["filepath"] as! String 
    print("pressed ") 
    let strURL1:String = FETCH_InMegh_Image_BaseURL + filepath 
    print("strURL1 is ",strURL1) 
    let pathURL = URL(string: strURL1)! 
    let sessionConfig = URLSessionConfiguration.default 
    let session = URLSession(configuration: sessionConfig) 
    let request = try! URLRequest(url: pathURL, method: .get) 
    let task = session.downloadTask(with: request) { (tempLocalUrl, response, error) in 
     if let tempLocalUrl = tempLocalUrl, error == nil { 
      // Success 
      if let statusCode = (response as? HTTPURLResponse)?.statusCode { 
       print("Success: \(statusCode)") 
       print("tempLocalUrl: \(tempLocalUrl)") 
           } else { 
       print("Failure: %@", error?.localizedDescription); 
      } 
     } 
    } 
} 

}

Answer 1

Définissez votre destination quelque chose comme ça:

let destination: DownloadRequest.DownloadFileDestination = { _, _ in 
    let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0] 
    let fileURL = documentsURL.appendingPathComponent("your.pdf") 
    return (fileURL, [.removePreviousFile, .createIntermediateDirectories]) 
} 

Et appelez Alamofire.download avec votre URL et destination:

Alamofire.download(yourUrl), to: destination).response { response in 
     let parentView = (self.superview?.superview as! UITableView).dataSource as! ProcedureViewController 
     parentView.hideActivityIndicator() 
     if response.error == nil, let _ = response.destinationURL?.path { 
      //open pdf in UIDocumentInteractionController 
      self.docController = UIDocumentInteractionController.init(url: response.destinationURL!) 
      self.docController?.delegate = self.delegate! 
      self.docController?.name = "" 
      self.docController?.presentOptionsMenu(from: self.parentView!.bounds, in: self.parentView!, animated: true) 
     } 
    }