在UITableview中显示图像

Question

我试图在桌面视图中显示来自api的图像，但我没有得到图像或任何东西。 ImageTableViewCell只有图像的出口。

import UIKit 
import Alamofire 
import SwiftyJSON 
import Haneke 

class SlideViewController: UIViewController , UITableViewDelegate , UITableViewDataSource { 

@IBOutlet weak var tableview : UITableView! 

var images = [String]() 




override func viewDidLoad() { 
    super.viewDidLoad() 

    tableview.delegate = self 
    tableview.dataSource = self 

    getJSON() 


} 


func numberOfSections(in tableView: UITableView) -> Int { 
    return 0 
} 


func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { 
    return images.count 
} 



func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { 

    let cell = tableView.dequeueReusableCell(withIdentifier: "imageCell", for: indexPath) as! ImageTableViewCell 


    let url = URL(string: images[indexPath.row]) 

    cell.images.hnk_setImage(from: url!) 

    return cell 
} 




func getJSON() { 

    let url = "http://localhost:8000/api/hello" 
    request(url , method: .get, encoding: JSONEncoding.default ) 
     .responseJSON { response in 

      if let value: AnyObject = response.result.value as AnyObject? { 
       //Handle the results as JSON 
       do{ 
        if let albums = try JSONSerialization.jsonObject(with: response.data!, options: []) as? [String: Any], 
         let pics = albums["pic"] as? [Any] { 

         self.images = pics as! [String] 

         for kick in pics { 
          self.images.append(kick as! String) 

         } 

        } 

       }catch { 
        print("Error with Json: \(error)") 
       } 
       DispatchQueue.main.async { 
        self.tableview.reloadData() 
       } 

    } 
    } 
    } 

    } 

任何帮助将不胜感激。我尝试了很多方法，但这似乎很简单，并且易于跟踪

Answer 1

的jsonObject(with:options:)到[String:Any]结果，而不是[[String: AnyObject]]您必须至少有一个部分展现。

func numberOfSections(in tableView: UITableView) -> Int { 
    return 1 
} 

Answer 2

您的JSON响应是Dictionary而不是Array，其中包含pic数组。所以，键入

do{ 
    if let albums = try JSONSerialization.jsonObject(with: response.data!, options: []) as? [String: Any], 
     let pics = albums["pics"] as? [Any] { 

     images = pics.flatMap{ $0 as? String } 
    } 
}catch { 
    print("Error with Json: \(error)") 
} 
DispatchQueue.main.async { 
    self.tableview.reloadData() 
} 

Answer 3

检查下面的代码

var images = [String]() 

func getJSON() { 

    let url = "http://localhost:8000/api/hello" 
    request(url , method: .get, encoding: JSONEncoding.default ) 
     .responseJSON { response in 

      if let value: AnyObject = response.result.value as AnyObject? { 
       //Handle the results as JSON 
       do{ 
        let albums = try JSONSerialization.jsonObject(with: response.data!, options:.allowFragments) as! [[String: AnyObject]] 
        print(albums) 
        if let pics = album["pic"] 
        { 
         for album in pics 
         { 
          images.append(album) 
         } 
        } 

       }catch { 
        print("Error with Json: \(error)") 
       } 
       self.tableview.reloadData() 

      } 
    } 
}