斯威夫特：的tableView

Question

我有以下的tableView定義：

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { 
    let cell = tableView.dequeueReusableCellWithIdentifier("ProductCell", forIndexPath:indexPath) 
    print("Pass it to tableview \(courseName2) ") 
    print("Pass it to tableview \(codeName2) ") 
    var count = 0 


    getTime((self.courseName2!), courseCode: (self.codeName2!), completion:{(success:[ClassSchedule]) -> Void in 
      count = classes[0].total! 
      print("TOTAL CKASSESSSs \(count) ") 
      dispatch_async(dispatch_get_main_queue(),{ 
       self.tableView.reloadData() 
       for var i = 0; i < count; ++i 
       { 
        //print("FOR LOOP COUNT: \(i)") 
        cell.textLabel?.text = "\(classes[i].section!)" 
        // Start Time: \(classes[i].start!)End Time: \(classes[i].end!) 
        print("FOR LOOP COUNT: \(i) Section\(classes[i].section!)") 
       } 

      }); 

    }) 
    return cell 
} 

在print語句for循環的功能從「類」陣列提供正確的信息，但是當我模擬代碼，只有最後一個元素填滿每一行。

相反 'TST 101' 的，我希望它顯示 'LEC 001'， 'LEC 002'， 'LEC 003'， 'LEC 004'， 'TST 101' 在順序，這是包含在'類'數組中。

的getTime功能，通過JSON電話獲取數據：

// Read the JSON 
    do { 
     let data: NSData? = NSData(contentsOfURL: url) 
     if let jsonResult: NSDictionary = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers) as? NSDictionary 
     { 
      //////ARRAY/////// 
      let dataArray = jsonResult["data"] as! NSArray 
      ////// 
      let arrayLength = dataArray.count 
      var count = 0 
      //classes.append(ClassSchedule(course: item["subject"] as! String, code: item["catalog_number"] as! String, section: item["section"] as! String)) 

      print("TOTAL OF CLASSES: \(arrayLength)"); 

      for item in dataArray 
      { 

       classes.append(ClassSchedule(course: "TEMP", code: "TEMP", section: "TEMP", days:"TEMP", start:"TEMP", end:"TEMP", building:"TEMP", room:"TEMP", total: arrayLength)) 

       classes[count].course = (item["subject"] as! String) 
       classes[count].code = (item["catalog_number"] as! String) 
       classes[count].section = (item["section"] as! String) 
       print("Subject: \(classes[count].course!) \(classes[count].code!)"); 
       print("Section: \(classes[count].section!)"); 
       // print("Section: \(section_numb)"); 

       let subjectArray = item["classes"] as! NSArray 

       for item2 in subjectArray{ 

        let dateDictionary = item2["date"] as! NSDictionary 
        //let startTime = dateDictionary["start_time"]! 
        //self.performSelectorOnMainThread("updateIPLabel:", withObject: startTime, waitUntilDone: false) 
        //let endTime = dateDictionary["end_time"]! 
        classes[count].days = (dateDictionary["weekdays"] as! String) 
        classes[count].start = (dateDictionary["start_time"] as! String) 
        classes[count].end = (dateDictionary["end_time"] as! String) 
        string1 = classes[count].start! 
        print("Weekdays: \(classes[count].days!)"); 
        print("START TIME: \(classes[count].start!)"); 
        print("End Time: \(classes[count].end!)"); 


        let locationDictionary = item2["location"] as! NSDictionary 
        classes[count].building = (locationDictionary["building"] as? String) 
        classes[count].room = (locationDictionary["room"] as? String) 
        print("Building: \(classes[count].building) \(classes[count].room)"); 


        count += 1 
        print(count) 
        print("") 

       } 

      } 
      //let subject = dataArray["subject"] 
     } 

    } catch { 
     print("bad things happened") 
    } 

    //print("ASDIAWDWD: \(classes[0].section)") 
    // print("ASDIAWDWASDASDD: \(classes[1].section)") 
    completion(classes: classes) 
    }).resume() 

Answer 1

很難告訴你想要做什麼，但你不應該使用表格視圖數據源方法中的任何異步方法。這些方法應該只代表你已有的數據。好像你可以用cell.textLabel?.text = "\(classes[indexPath.row].section!)"替換整個getTime塊。