我要在tableview中添加多个选择,并在tableview中添加部分,所以当用户单击将存储在数组中作为选定项的特定部分中的单元格时,如何存储该部分的索引以及该单元格的索引路径以供显示反映在cellForRowAtindexpath中,更好的解决方案值得赞赏
func numberOfSections(in tableView: UITableView) -> Int {
return sections.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return itemsInSections[section].count
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return self.sections.count;
}
func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
let header = view as! UITableViewHeaderFooterView
header.textLabel?.textColor = UIColor(red: 8/255, green: 38/255, blue: 76/255, alpha: 1.0)
header.backgroundColor = UIColor.clear
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tablheaders.dequeueReusableCell(withIdentifier: "Cell", for: indexPath as IndexPath)
let section = indexPath.section
if checkdarray.count > 0
{
if (self.checkdarray[section][indexPath.row] as Int == 1)
{
cell.accessoryType = .checkmark;
}
else
{
cell.accessoryType = .none;
}
}
cell.textLabel?.text = itemsInSections[indexPath.section][indexPath.row] as! String
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let section = indexPath.section as Int
let indepaths = indexPath.row as Int
tableView.cellForRow(at: indexPath as IndexPath)?.accessoryType = .checkmark
checkdarray.insert([1], at: [section][indepaths])
}
func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
tableView.cellForRow(at: indexPath as IndexPath)?.accessoryType = .none
// checkdarray.remove(at: indexPath.row)
//checkdarray.insert(0, at: indexPath.row)
}
答案 0 :(得分:0)
I have used button in table...
// declare var
var checkarrMenu = Set<IndexPath>()
// In tableView
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return array.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = mManageTableView.dequeueReusableCell(withIdentifier: "TableViewCellID")as! TableViewCell
cell.mRadioBtnAct.tag = indexPath.row
cell.mRadioBtnAct.addTarget(self, action: #selector(mRadioCheck(sender:)), for: .touchUpInside)
if checkarrMenu.contains(indexPath){
cell.mradioimage.image = UIImage(named: "Radiochecked")
}else{
cell.mradioimage.image = UIImage(named: "Radio checkedlightRadio3")
}
return cell
}
// on radio btn Action
@objc func mRadioCheck(sender:UIButton){
let touchPoint: CGPoint = sender.convert(CGPoint.zero, to: mManageTableView)
// maintable --> replace your tableview name
let clickedButtonIndexPath = mManageTableView.indexPathForRow(at: touchPoint)
if checkarrMenu.contains(clickedButtonIndexPath){
checkarrMenu.remove(clickedButtonIndexPath)
}else{
checkarrMenu.insert(clickedButtonIndexPath)
}
tableView.reloadData()
}
// hope its works for you!
答案 1 :(得分:0)
最有效,最可靠的解决方案是将isSelected
状态保留在数据模型中。
使用结构作为数据模型,并添加成员isSelected
以及所需的其他信息。
struct Model {
var isSelected = false
var someOtherMember : String
// other declarations
}
在cellForRow
中,根据isSelected
成员设置复选标记
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) // use always the passed tableView instance
let model = itemsInSections[indexPath.section][indexPath.row]
cell.accessoryType = model.isSelected ? .checkmark : .none
cell.textLabel?.text = model.someOtherMember
return cell
}
在didSelectRowAt
和didDeselectRowAt
中更新模型并重新加载行
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
itemsInSections[indexPath.section][indexPath.row].isSelected = true
tableView.reloadRows(at: [indexPath], with: .none)
}
func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
itemsInSections[indexPath.section][indexPath.row].isSelected = false
tableView.reloadRows(at: [indexPath], with: .none)
}
从不使用额外的数组来保存索引路径。不要那样做