的UITableViewCell - 基于内容

Question

选择背景大小我有这样的代码来获取表格单元

func getCell(_ tableView: UITableView) -> UITableViewCell? { 
    var cell:UITableViewCell? = tableView.dequeueReusableCell(withIdentifier: CELL_REUSE_ID) 

    if (cell == nil) 
    { 
     //init and configure the cell 
     cell = UITableViewCell(style: UITableViewCellStyle.default, reuseIdentifier: CELL_REUSE_ID) 

     let selectedView:UIView = UIView(frame: CGRect(x: 0, y: 0, width: cell!.frame.size.width, height: cell!.frame.size.height)) 
     selectedView.backgroundColor = UIColor.black.withAlphaComponent(0.3) 

     let layer = selectedView.layer 
     layer.borderColor = UIColor.blue.cgColor 
     layer.borderWidth = getCellBorderWidth(); 
     layer.cornerRadius = getCellCornerRadius(); 
     layer.backgroundColor = UIColor.blue.cgColor 

     cell!.selectedBackgroundView = selectedView 
    } 

    return cell 
} 


override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell 
    { 
     let cell:UITableViewCell? = getCell(tableView) 

     cell!.backgroundColor = UIColor.clear 

     cell!.textLabel!.textColor = UIColor.darkText 
     cell!.textLabel!.text = tableData[indexPath.row] 
     cell!.textLabel!.textAlignment = .right 
     cell!.textLabel!.numberOfLines = 1 
     cell!.textLabel!.adjustsFontSizeToFitWidth = true 

     return cell! 
    } 

细胞与表中的代码生成，没有xibs。现在，如果我选择单元格，背景将覆盖整个表格的宽度。我如何为某些单元格创建背景，这只是表格宽度的一半（或其他百分比）？

Answer 1

我觉得你可以添加其他视图selectedBackgroundView

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { 
    var cell = tableView.dequeueReusableCell(withIdentifier: "cell") 
    if cell == nil { 
     cell = UITableViewCell(style: .default, reuseIdentifier: "cell") 
     // selectedBackgroundView 
     let backgroundView = UIView() 
     backgroundView.backgroundColor = UIColor(white: 0, alpha: 0) 
     // add another view to selectedBackgroundView, and set any frame for this view 
     let selectView = UIView(frame: CGRect(x: 0, y: 0, width: 200, height: 40)) 
     selectView.backgroundColor = .red 
     backgroundView.addSubview(selectView) 
     cell?.selectedBackgroundView = backgroundView 
    } 

    return cell! 

}