willDisplayCell第一行不斯威夫特

Question

工作，我想进行自定义的角落圆角背景为我定制的细胞，并将其与下面的代码的工作，但第一行是不会受到影响，我应该把它的滚动起来，使其有一个背景

func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell, forRowAtIndexPath indexPath: NSIndexPath) { 
     if indexPath.row != 0 { 
      cell.contentView.backgroundColor = UIColor.clearColor() 
      var whiteRoundedCornerView: UIView = UIView(frame: CGRectMake(10, 10, 365, 250)) 
      whiteRoundedCornerView.backgroundColor = UIColor.lightGrayColor() 
      whiteRoundedCornerView.layer.masksToBounds = false 
      whiteRoundedCornerView.layer.cornerRadius = 20 
      whiteRoundedCornerView.layer.shadowOffset = CGSizeMake(-0, -1) 
      whiteRoundedCornerView.layer.shadowOpacity = 0.1 

      cell.contentView.addSubview(whiteRoundedCornerView) 
      cell.contentView.sendSubviewToBack(whiteRoundedCornerView) 
     } 


    } 

Answer 1

代码中的问题是if语句。当indexPath.row为0（这是第一行）时，您的配置代码不会执行。要解决这个问题，只需从代码中删除if声明。它应该看起来像这样：

func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell, forRowAtIndexPath indexPath: NSIndexPath) { 
    cell.contentView.backgroundColor = UIColor.clearColor() 
    var whiteRoundedCornerView: UIView = UIView(frame: CGRectMake(10, 10, 365, 250)) 
    whiteRoundedCornerView.backgroundColor = UIColor.lightGrayColor() 
    whiteRoundedCornerView.layer.masksToBounds = false 
    whiteRoundedCornerView.layer.cornerRadius = 20 
    whiteRoundedCornerView.layer.shadowOffset = CGSizeMake(-0, -1) 
    whiteRoundedCornerView.layer.shadowOpacity = 0.1 

    cell.contentView.addSubview(whiteRoundedCornerView) 
    cell.contentView.sendSubviewToBack(whiteRoundedCornerView) 
}