PFQueryTableViewController - CellForRowAtIndexPath未被调用/无法正常工作

时间:2017-02-10 02:14:01

标签: ios swift parse-platform pfquerytableviewcontrolle

我一直在尝试实现PFQueryTableViewController,以便向我的Parse服务器显示数据。无论出于何种原因,我的自定义原型单元都没有被使用。相反,表格只是显示(x表示数字)。我已经检查过以确保我的所有插座都正确连接,并且重用标识符与我在故事板中设置的标识符相对应。不确定问题是什么。我的PFQueryTableViewController和PFTableViewCell的代码如下。如果有人可以帮助我,我会很感激。

PFQueryTableViewController类:

import UIKit
import ParseUI
import Parse

class HomePagePFQueryTable: PFQueryTableViewController {



override func queryForTable() -> PFQuery<PFObject>
{
    let query = PFQuery(className: "Posts")
    //query.cachePolicy = .cacheElseNetwork
    query.order(byDescending: "createdAt")
    return query
}

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath, object: PFObject?) -> PFTableViewCell?
{
    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath as IndexPath) as! HomePagePFQueryTableCell

    cell.titleLabel?.text = object?.object(forKey: "Title") as? String

    let imageFile = object?.object(forKey: "imageFile") as? PFFile
    print(cell.titleLabel.text)
    cell.mainImageView?.file = imageFile

    cell.mainImageView.loadInBackground()

    return cell
}




override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view.
    print("Loaded")
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}


}

PFTableViewCell类:

import UIKit
import Parse
import ParseUI

class HomePagePFQueryTableCell: PFTableViewCell {
@IBOutlet weak var mainImageView: PFImageView!

@IBOutlet weak var titleLabel: UILabel!
/*
// Only override draw() if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
override func draw(_ rect: CGRect) {
    // Drawing code
}
*/

}

1 个答案:

答案 0 :(得分:0)

哇,刚想通了。我所要做的就是在cellForRowAtIndexPath函数的第一个tableView前放置一个_