如何在图像成功上传到服务器时显示蓝色勾号，以及上传图像的加载时钟

如何解决如何在图像成功上传到服务器时显示蓝色勾号，以及上传图像的加载时钟

您好，我正在开发一个应用程序，我将多个图像上传到服务器并加载到桌面上。我需要做的是我需要为成功加载到服务器的图像显示一个蓝色勾号，并为正在上传或未上传的图像显示一个加载器。下面是代码

 Alamofire.upload(multipartFormData: { multipartFormData in for imageData in imagesData {
            multipartFormData.append(imageData,withName: "\(imageParameterName)[]",fileName: "\(Date().timeIntervalSince1970).jpeg",mimeType: "image/jpeg")
        }
        for (key,value) in parameters {
            multipartFormData.append(value.data(using: String.Encoding.utf8)!,withName: key)
        }
    },to: urlString,encodingCompletion: { encodingResult in
            switch encodingResult {
            case .success(let upload,_,_):
                upload.responseJSON { response in

                }
            case .failure(let error):
                print(error)
            }

    })

欢迎对流程或流程提出任何建议。

解决方法

您可以使用 DispatchGroup()

let syncGroup = DispatchGroup()
 for i in results {
     self.syncGroup.enter()
     **/* For Like Example api call and success in blue tick image update */**
     let image = UIImage(data: i.imageData! as Data)
     self.viewModel.postUploadImage(imgUpload: image!,description: i.descriptionn,location: i.location,allowPublish: i.allow_publish,cropID: i.crop_id,diseasesID: i.disease_id){
        let count = self.syncGroup.debugDescription.components(separatedBy: ",").filter({$0.contains("count")}).first!.components(separatedBy: CharacterSet.decimalDigits.inverted).filter({Int($0) != nil})
            if count.first != "0"{
               self.syncGroup.leave()
               print("Leave")
               // Blue tick image set
            }
        }
    }
 }
self.syncGroup.notify(queue: DispatchQueue.main,execute: {
      print("Finished all requests.")
}