Swift - Alamofire - 从照片库上传文件

Question

我正在尝试使用 Alamofire 从我的照片库上传:

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    guard let image = info[UIImagePickerControllerOriginalImage] as? UIImage else {
        return
    }

    let documentDirectory: NSString = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first! as NSString

    let imageName = "temp"
    let imagePath = documentDirectory.appendingPathComponent(imageName)

    if let data = UIImageJPEGRepresentation(image, 80) {
        do {
            try data.write(to: URL(fileURLWithPath: imagePath), options: .atomic)
        } catch let error {
            print(error)
        }
    }

    Alamofire.upload(.POST, "\(self.app_url)/user/upload", multipartFormData: { formData in
        let filePath = NSURL(fileURLWithPath: image)
        formData.appendBodyPart(fileURL: filePath, name: "upload")
        formData.appendBodyPart(data: "Alamofire".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name: "test")
    }, encodingCompletion: { encodingResult in
        switch encodingResult {
        case .Success:
            print("SUCCESS")
        case .Failure(let error):
            print(error)
        }
    })

    self.dismiss(animated: true, completion: nil)
}

它打印:

Ambiguous reference to member 'upload(_:to:method:headers:)'

有人可以解释一下如何解决这个问题吗？

谢谢并问候!

Answer 1

在 Swift 3 和 Alamofire 4 中

这里是如何使用 Alamofire 上传的完整实现

1. 将以下内容添加到您的 ViewController 类中:

   UIImagePickerControllerDelegate 和 UINavigationControllerDelegate

2. 创建按钮:

首先创建一个按钮并在选择器 View 中实现以下方法

@IBAction func btnSelectProfileImageClicked(_ sender: Any) {
    
    let ImagePicker = UIImagePickerController()
    ImagePicker.delegate = self
    ImagePicker.sourceType = UIImagePickerControllerSourceType.photoLibrary
    
    self.present(ImagePicker, animated: true, completion: nil)
    
    
}

然后实现以下 UIPicker 方法:

func imagePickerController( _ picker: UIImagePickerController,didFinishPickingMediaWithInfo info:[String : Any] )
{Imgprofile.image = info[UIImagePickerControllerOriginalImage] as? UIImage
self.dismiss(animated: true, completion: nil)}

制作另一个按钮，使用 Alamofire 将数据传递到 URL，并为其提供一个 @IBAction 导出:

输入以下数据

 @IBAction func btnUpdateProfileSelected(_ sender: Any) {
    
    Alamofire.upload(multipartFormData: { (multipartFormData) in
        multipartFormData.append(UIImageJPEGRepresentation(self.Imgprofile.image!, 1)!, withName: "Prescription", fileName: "Profile_Image.jpeg", mimeType: "image/jpeg")
    }, to:" Your URL Here where You want to Upload")
    { (result) in
        switch result {
        case .success(let upload, _, _):
            print(result)
            
            upload.uploadProgress(closure: { (progress) in
                print(progress)
            })
            
            upload.responseJSON { response in
                //print response.result
                print(response);
            }
            
        case .failure(let encodingError):
            print(encodingError);
        }
    }
}

仅此而已

希望这有帮助

For Full sample code or any doubts please comment. I will provide you the sample code for this. Which Includes the Fetching as well as upload data using Alamofire.

谢谢