iOS 8上的UITableView中存在重叠标签，但iOS 7中不存在重叠标签

如果我在iOS 8上运行应用程序，而不是在iOS 7上运行应用程序，则标签（lblscore）似乎重叠。当我检查它时，

cell.addSubviews（lblscore）

导致了它，但我无法删除它，因为如果我这样做，该标签将根本不会显示。我没有用故事板

这是我在CellForRowatineXpath中的代码

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! UITableViewCell
    var i = 0
    var lblname = UILabel()
    var lblmsg = UILabel()
    let row = indexPath.row
    var forName = ""
    var forScore = 0
    if let not_me = threads[row]["not_me"] as? NSDictionary{
        if let username = not_me["username"] as? String{
            forName = username
        }
        if let score = threads[row]["partner_score"] as? Int{
            forScore = score
        }
        if (not_me == [:]){
            if let username = defaults.valueForKey("username") as? String{
                forName = username
            }
            if let score = threads[row]["author_score"] as? Int{
                forScore = score
            }
        }
    }
    for sub in cell.subviews{
        if (sub.subviews.count>6){
            for sub1 in sub.subviews{
                i++
                if ((i>0) && !(i==7)){
                    switch (i){
                    case 3:
                        lblmsg = sub1 as! UILabel
                        lblmsg.text = ""
                        lblmsg.text = threads[row]["content"] as? String
                        lblmsg.sizeToFit()
                    case 4:
                        lblname = sub1 as! UILabel
                        lblname.text = ""
                        lblname.sizeToFit()
                        lblname.text = forName
                        lblname.sizeToFit()
                        lblname.frame = CGRectMake(40, 10, lblname.bounds.width, lblname.bounds.height+4)
                        lblmsg.frame = CGRectMake(40, lblname.bounds.height-5, UIScreen.mainScreen().bounds.width-100,50)
                    case 5:
                        let lbldate : UILabel = sub1 as! UILabel
                        lbldate.text = ""
                        lbldate.sizeToFit()
                        lbldate.text = threads[row]["timeAgo"] as? String
                        lbldate.sizeToFit()
                        lbldate.frame = CGRectMake(UIScreen.mainScreen().bounds.width/3*2, 15, lbldate.bounds.width, 15)
                    case 6:
                        let lblscore : UILabel = sub1 as! UILabel
                        lblscore.text = ""
                        lblscore.sizeToFit()
                        lblscore.text = "\(forScore)"
                        lblscore.sizeToFit()
                        if(lblscore.bounds.width == 15){
                            lblscore.frame = CGRectMake(lblname.bounds.width+50, 10, lblscore.bounds.width+5, lblscore.bounds.height+4)}
                        else{
                            lblscore.frame = CGRectMake(lblname.bounds.width+50, 10, lblscore.bounds.width+10, lblscore.bounds.height+4)}
                    default:
                        print("")
                    }
                }
                if (i==7){
                    let btnDelete = sub1 as! UIButton
                    btnDelete.tag = row
                }
            }
        }
        else{
            cell.alpha = 0
            let lblscore = UILabel()
            let btnDelete = UIButton(frame: CGRectMake(UIScreen.mainScreen().bounds.width-18, 22.5, 22, 30))
            btnDelete.tag = row
            btnDelete.addTarget(self, action: "openDeleteBar:", forControlEvents: UIControlEvents.TouchUpInside)
            lblscore.backgroundColor = UIColor(red: (102/255), green: (193/255), blue: (144/255), alpha: 1)
            btnDelete.backgroundColor = UIColor(patternImage: UIImage(named: "grayBin")!)
            lblname.text = forName
            lblname.sizeToFit()
            lblscore.text = "\(forScore)"
            lblscore.sizeToFit()
            lblname.frame = CGRectMake(40, 10, lblname.bounds.width, lblname.bounds.height+4)
            let lblmsg = UILabel(frame: CGRectMake(40, lblname.bounds.height-5, UIScreen.mainScreen().bounds.width-100,50))
            lblmsg.text = threads[row]["content"] as? String
            if(lblscore.bounds.width == 15){
                lblscore.frame = CGRectMake(lblname.bounds.width+40, 10, lblscore.bounds.width+5, lblscore.bounds.height+4)}
            else{
                lblscore.frame = CGRectMake(lblname.bounds.width+40, 10, lblscore.bounds.width+10, lblscore.bounds.height+4)}
            lblscore.layer.borderWidth = 1
            lblscore.clipsToBounds = true
            lblscore.layer.cornerRadius = 10
            lblscore.textAlignment = .Center
            let lbldate = UILabel()
            lbldate.text = threads[row]["timeAgo"] as? String
            lbldate.sizeToFit()
            lbldate.frame = CGRectMake(UIScreen.mainScreen().bounds.width/3*2, 15, lbldate.bounds.width, 15)
            lblname.font = UIFont(name: "Roboto", size: 15)
            lblmsg.font = UIFont(name: "Roboto", size: 13)
            lbldate.font = UIFont(name: "Roboto", size: 13)
            lblscore.font = UIFont(name: "Roboto", size: 15)
            lbldate.textColor = UIColor.lightGrayColor()
            lblmsg.textColor = UIColor.lightGrayColor()
            lblscore.textColor = UIColor.whiteColor()
            cell.selectionStyle = .None
            cell.addSubview(lblmsg)
            cell.addSubview(lblname)
            cell.addSubview(lbldate)
                cell.addSubview(lblscore)
            cell.addSubview(btnDelete)
            UIView.animateWithDuration(0.2, delay: 0, options: nil, animations: {
                cell.alpha = 1
                }, completion: nil)
        }
    }
    return cell
}

---

我希望这将有助于任何人与这种情况。我自己找到了解决办法。因为我的应用程序可以在iOS 8和iOS 7中运行，所以首先要做的是识别版本，然后识别手机。要知道单元格是否为空，“cell==nil”永远不会工作，因为在iOS8中，单元格已经有2个子视图（内容视图和分隔符）。在iOS 7中，在获得电池之前，必须先检查它的包装器

为了进一步解释

let version = "\(Array(String(UIDevice.currentDevice().systemVersion))[0])"//get device version
if (version == "7"){//if iOS 7
    for wrapper in cell.subviews{//go to the wrapper
        if (wrapper.subviews.count==2){//if the wrapper contains the content view and the separator only
            //Here you will add the contents of the cell
        }
        else{//if wrapper has more subview which indicate that it is already filled
        var i = 0
                for sub in wrapper.subviews{//scan all subviews of wrapper
                    i++
                    if (i>2){//delete items 3 and beyond since the content view and separator is in the first 2
                        sub.removeFromSuperview()//remove them
                    }
                }
                //Here you will add the contents of the cell
        }
}
}
else{//if iOS 8
if (cell.subviews.count==2){//if the cell contains the content view and the separator only
            //Here you will add the contents of the cell
        }
        else{//if cell has more subview which indicate that it is already filled
        var i = 0
                for sub in cell.subviews{//scan all subviews of wrapper
                    i++
                    if (i>2){//delete items 3 and beyond since the content view and separator is in the first 2
                        sub.removeFromSuperview()//remove them
                    }
                }
                //Here you will add the contents of the cell
        }
    }
}

---

现在，当表尝试重用单元格时，它将在添加新内容之前删除该单元格的内容。我希望这将帮助很多人。

从可读性的角度来看，您应该使用camelCase来编写

let

/

var

语句。此外，为

let

/

var

提供更具描述性的名称也有助于提高可读性。例如：

让labelScore=UILabel（）

而不是

让lblscore=UILabel（）

我的眼睛！他们烧了！你在用故事板吗？如果是，请使用具有自动布局和约束的原型单元。根据屏幕边界设置内容很容易失败。在故事板中用自定义单元格子类和原型单元格替换所有代码。另外，不要使用硬编码字体大小-使用动态类型。尽量不要使用非标准字体——使用苹果提供的系统字体。我不使用故事板。我很抱歉，我没有注意到，我没有使用骆驼的情况下，因为它是在赶时间，但我太累了，改变它。字体是客户端提供的，所以我没有保留。嗯，

Roboto

typeface。。。您正在从android移植代码吗？；）