ios - 隐藏特定单元格的自定义 ViewTableCell 按钮

Question

我遇到了 UITableViewCell 的问题。

当我生成我的 tableCells 时，我会检查一个值是否等于某个值，如果是，我会隐藏我在原型(prototype)单元格中制作的自定义按钮。问题是，带有我隐藏的标识符的按钮隐藏在每个单元格中，而不是仅隐藏在当前单元格中......

我环顾四周，但找不到事可做...你能帮忙吗？这是我的代码，请查看行 if currentPost.valueForKey... == "noLink"。谢谢 !

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{
        var cell = tableView.dequeueReusableCellWithIdentifier("postCell", forIndexPath: indexPath) as! PostTableViewCell
        var currentCell = indexPath
        var currentPost = post[indexPath.row]
        var currentUser = followedInfo[currentPost.valueForKey("userID") as! String]

        cell.username.contentHorizontalAlignment = UIControlContentHorizontalAlignment.Left


        cell.userProfil.layer.cornerRadius = 0.5 * cell.userProfil.bounds.size.width
        cell.username.setTitle(currentUser?.valueForKey("username") as? String, forState: UIControlState.Normal)
        cell.postArtist.text = currentPost.valueForKey("artistName") as? String
        cell.postDescription.text = currentPost.valueForKey("postDescription") as? String
        cell.postTitle.text = currentPost.valueForKey("songName") as? String
        cell.postTime.text = "7J"
        cell.postDescription.sizeToFit()

        if currentPost.valueForKey("itunesLink") as? String == "noLink" {

            cell.postItunes.hidden = true;

        }else{
            cell.postItunes.addTarget(self, action: "getToStore:", forControlEvents: .TouchUpInside)
        }

        if currentPost.valueForKey("previewLink") as? String == "noPreview" {
            cell.postPlay.alpha = 0;
        }else{
            cell.postPlay.addTarget(self, action: "getPreview:", forControlEvents: .TouchUpInside)
        }

        if currentPost.valueForKey("location") as? String == "noLocalisation" {
            cell.postLocation.text = "Inconnu"
        }else{
            cell.postLocation.text = currentPost.valueForKey("location") as? String
        }


        if currentUser?.valueForKey("profilePicture")! != nil{
            var pictureFile: AnyObject? = currentUser?.valueForKey("profilePicture")!
            pictureFile!.getDataInBackgroundWithBlock({ (imageData, error) -> Void in
                var theImage = UIImage(data: imageData!)
                cell.userProfil.image = theImage
            })
        }

        if currentPost.valueForKey("coverLink") as? String == "customImage" {
            var profilPictureFile: AnyObject? = currentPost.valueForKey("postImage")

            profilPictureFile!.getDataInBackgroundWithBlock { (imageData , imageError ) -> Void in

                if imageError == nil{
                    let image = UIImage(data: imageData!)
                    cell.postPicture.image = image
                }
            }
        }else{
            if currentPost.valueForKey("coverLink") as? String == "noCover"{

                var cover = UIImage(named: "noCover")
                cell.postPicture.image = cover

            }else{
                var finalURL = NSURL(string: currentPost.valueForKey("coverLink") as! String)
                let request: NSURLRequest = NSURLRequest(URL: finalURL!)
                NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue(), completionHandler: {(response: NSURLResponse!,data: NSData!,error: NSError!) -> Void in
                    if error == nil {
                        var image = UIImage(data: data)


                        cell.postPicture.image = image

                    }
                    else {
                        println("Error: \(error.localizedDescription)")
                    }
                })
            }
        }









        return cell;
    }

Answer 1

如果你想让它显示，你不会将底部设置回可见，因为你正在重复使用单元格，最后一个设置是单元格的一部分，所以一旦你将它设置为隐藏为真，它仍然会隐藏直到您将 hidden 设置回 false，使用可重用单元格的最佳方法是始终将所有选项设置为您希望该单元格的选项，以避免设置为旧单元格。

    if currentPost.valueForKey("itunesLink") as? String == "noLink" {
        cell.postItunes.hidden = true;
    }else{
        cell.postItunes.hidden = false;
        cell.postItunes.addTarget(self, action: "getToStore:", forControlEvents: .TouchUpInside)
    }