我检查表格单元格时,向下滚动复选标记。 我知道这是由于细胞重用,但不知道如何解决它。
填充表格的功能
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let item = self.myEvents[indexPath.row]
let cell = tableView.dequeueReusableCellWithIdentifier("row", forIndexPath: indexPath) as! UITableViewCell
cell.textLabel!.text = self.myEvents[indexPath.row]
return cell
}
//使表格可检查的功能
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
println("indexpath: \(indexPath)")
let cell: UITableViewCell = tableView.cellForRowAtIndexPath(indexPath)!
let text = cell.textLabel!.text
if cell.accessoryType == UITableViewCellAccessoryType.None {
cell.accessoryType = UITableViewCellAccessoryType.Checkmark
//let text = cell.textLabel!.text
if(checkedEvents[0] == ""){
checkedEvents[0] = text!
}else{
checkedEvents.append(text!)
}
} else {
cell.accessoryType = UITableViewCellAccessoryType.None
var index = 0
for event in checkedEvents{
if event == text{
self.checkedEvents.removeAtIndex(index)
index++
}
}
}
tableView.deselectRowAtIndexPath(indexPath, animated: true)
}
答案 0 :(得分:1)
首先,您需要将所选行的编号存储在某处。 self.selectedRowNumber
怎么样?
var selectedRowNumber: Int? = nil
当用户选择一行(短版)时设置:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let cell: UITableViewCell = tableView.cellForRowAtIndexPath(indexPath)!
cell.accessoryType = .Checkmark
self.selectedRowNumber = indexPath.row
// You'll also need some code here to loop through all the other visible cells and remove the checkmark from any cells that aren't this one.
}
现在修改您的-tableView:cellForRowAtIndexPath:
方法以清除附件(如果它不是所选行),或者添加它(如果它是:
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("row", forIndexPath: indexPath) as! UITableViewCell
cell.textLabel!.text = self.myEvents[indexPath.row]
cell.accessoryType = .None
if let selectedRowNumber = self.selectedRowNumber {
if indexPath.row == selectedRowNumber {
cell.accessoryType = .Checkmark
}
}
return cell
}
此代码在浏览器中编写,可能需要一些修复才能编译。
答案 1 :(得分:0)
如果只想进行一次选择,请将tableView.reloadData()放入didSelectRowAtIndexPath函数中