how to download images from the url and show in your image view in swift 3.0 and objective c

downloadImage.swift

 //  swift code 3.0
    func downloadImage(url: URL)
    {
        print("Download Started \(url)")
        getDataFromUrl(url: url) { (data, response, error)  in
            guard let data = data, error == nil else { return }
            
            //print(response?.suggestedFilename)
            print(url.lastPathComponent)
            
            if(url.lastPathComponent != "safe_image.php"){
                
                
                
                print("Download Finished")
                
                DispatchQueue.main.async() { () -> Void in
                    if let image = UIImage(data: data){
                        let image1 : ImageClass = ImageClass(image: image)
                        self.Images.add(image1)
                        self.ImageView.reloadData()
                    }else{
                        print("No Image")
                    }
                }
            }
        }
    }

func getDataFromUrl(url: URL, completion: @escaping (_ data: Data?, _  response: URLResponse?, _ error: Error?) -> Void) {
        URLSession.shared.dataTask(with: url) {
            (data, response, error) in
            completion(data, response, error)
            }.resume()
    }


// objective c code 

-(void)DownloadImage:(NSString*)imageUrl{
    
    NSURL  *url = [NSURL URLWithString:imageUrl];
    NSData *urlData = [NSData dataWithContentsOfURL:url];
    if ( urlData )
    {
        NSLog(@"Downloading started...");
        NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        NSString *documentsDirectory = [paths objectAtIndex:0];
        NSString *filePath = [NSString stringWithFormat:@"%@/%@", documentsDirectory,@"dwnld_image.png"];
        NSLog(@"FILE : %@",filePath);
        [urlData writeToFile:filePath atomically:YES];
        UIImage *image1=[UIImage imageWithContentsOfFile:filePath];
        self.user_Image.image = image1;
        NSLog(@"Completed...");
    }
}