我制作了一个列出 UITableView 中项目的应用程序。当我选择项目并向下滚动直到它们离开屏幕时，它们将在视觉上被取消选择，这意味着：
我们设置的复选框图像和背景颜色被重置为原始状态。
然而，系统本身确实知道选择了什么，没有选择什么。
代码：
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell:TblCell! = self.tableView.dequeueReusableCellWithIdentifier("cell") as TblCell!
cell.lblCarName.text = tableData[indexPath.row]
cell.lblPrice.text = tablePrice[indexPath.row]
if (tableAvailability[indexPath.row] == "NO") {
cell.imgCarName.image = UIImage(named: "nonselectable")
cell.lblPrice.textColor = UIColor(red: 172/255, green: 76/255, blue: 67/255, alpha: 1);
} else {
cell.imgCarName.image = UIImage(named: "deselected")
}
cell.selectionStyle = UITableViewCellSelectionStyle.None;
return cell
}
func tableView(tableView: UITableView!, didSelectRowAtIndexPath indexPath: NSIndexPath!) {
let cell:TblCell = tableView.cellForRowAtIndexPath(indexPath) as TblCell
if (tableAvailability[indexPath.row] == "YES") {
println("Row \(indexPath.row) selected")
//var myBackView = UIView(frame: cell.frame)
cell.backgroundColor = UIColor(red: 190/255, green: 225/255, blue: 255/255, alpha: 1);
//cell.selectedBackgroundView = myBackView
cell.imgCarName.image = UIImage(named: "selected")
}
}
func tableView(tableView: UITableView!, didDeselectRowAtIndexPath indexPath: NSIndexPath!) {
let cell:TblCell = tableView.cellForRowAtIndexPath(indexPath) as TblCell
if (tableAvailability[indexPath.row] == "YES") {
println("Row \(indexPath.row) deselected")
//var myBackView = UIView(frame: cell.frame)
cell.backgroundColor = UIColor(red: 1, green: 1, blue: 1, alpha: 1);
//cell.selectedBackgroundView = myBackView
cell.imgCarName.image = UIImage(named: "deselected")
}
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 70
}
关于如何解决这个问题的任何想法？
提前致谢。