func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int{
return arrayVerbCount.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell{
let cell = self.tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! MesTalentsChoixCell
cell.verb!.text = arrayVerbCount[indexPath.row].verb
if cell.isSelected
{
cell.isSelected = false
if cell.accessoryType == UITableViewCellAccessoryType.none
{
cell.accessoryType = UITableViewCellAccessoryType.checkmark
}
else
{
cell.accessoryType = UITableViewCellAccessoryType.none
}
}
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath){
let cell = tableView.cellForRow(at: indexPath)
if cell!.isSelected
{
cell!.isSelected = false
if cell!.accessoryType == UITableViewCellAccessoryType.none
{
cell!.accessoryType = UITableViewCellAccessoryType.checkmark
}
else
{
cell!.accessoryType = UITableViewCellAccessoryType.none
}
}
}
我的自定义单元格类:
class MesTalentsChoixCell: UITableViewCell {
@IBOutlet weak var verb: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
答案 0 :(得分:2)
你应该这样做,如果只有一个部分,这是非常简单的解决方案。
像这样初始化selectedItems
数组,
var selectedItems: [Int] = []
查找下面的UITableViewDataSource
方法
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "CustomCell") as! CustomCell
cell.tmpValue.text = data[indexPath.row]
if selectedItems.contains(indexPath.row) {
cell.accessoryType = .checkmark
} else {
cell.accessoryType = .none
}
return cell
}
查找以下UITableViewDelegate
方法。
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
if selectedItems.contains(indexPath.row) {
let index = selectedItems.index(of: indexPath.row)
selectedItems.remove(at: index!)
} else {
selectedItems.append(indexPath.row)
}
tableView.reloadRows(at: [indexPath], with: .none)
}
代码将根据您的要求和自定义单元格进行更改。希望你能按照自己的方式去做。谢谢。
<强>更新强>
您甚至可以像这样使用Set
,
var setSelectedItems: Set<Int> = []
UITableViewDataSource
方法,
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "CustomCell") as! CustomCell
cell.tmpValue.text = data[indexPath.row]
if setSelectedItems.contains(indexPath.row) {
cell.accessoryType = .checkmark
} else {
cell.accessoryType = .none
}
return cell
}
UITableViewDelegate
方法,
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
if setSelectedItems.contains(indexPath.row) {
setSelectedItems.remove(indexPath.row)
} else {
setSelectedItems.insert(indexPath.row)
}
tableView.reloadRows(at: [indexPath], with: .none)
}
答案 1 :(得分:1)
滚动时使bool数组稳定,即
var arrStatusBool = [Bool]()
现在在 didSelectRowAt
中设置indexPath.row的值public func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
{
if self.arrStatusBool[indexPath.row]
{
self.arrStatusBool[indexPath.row] = false
}
else
{
self.arrStatusBool[indexPath.row] = true
}
}
并将其放在 cellForRowAt 中以避免滚动问题。
if self.arrStatusBool[indexPath.row]
{
tableView.cellForRow(at: indexPath)?.accessoryType = .checkmark
}
else
{
tableView.cellForRow(at: indexPath)?.accessoryType = .none
}
希望这有帮助!
答案 2 :(得分:0)
对于多重选择,您应该跟踪Dictionary
中的选定单元格,以便更快地访问选定和未选定的indexPath,允许您使用多个部分,因为我们的Dictionary的键值是由(IndexPath.section)+形成的字符串+ (IndexPath.row)始终是唯一组合
var selectedIndexPaths : [String:Bool] = [:]
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let currentIndexPathStr = "\(indexPath.section)\(indexPath.row)"
if(self.selectedIndexPaths[currentIndexPathStr] == nil || !self.selectedIndexPaths[currentIndexPathStr]!) {
self.selectedIndexPaths[currentIndexPathStr] = true
}else{
self.selectedIndexPaths[currentIndexPathStr] = false
}
self.tableView.reloadRows(at: [indexPath], with: .automatic)
}
public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "npCell", for: indexPath) as! NewPlaylistTableViewCell
cell.mTitle.text = musics[indexPath.row]["title"] as! String?
cell.mArtist.text = musics[indexPath.row]["artist"] as! String?
cell.accessoryType = .checkmark
let currentIndexPathStr = "\(indexPath.section)\(indexPath.row)"
if(self.selectedIndexPaths[currentIndexPathStr] == nil || !self.selectedIndexPaths[currentIndexPathStr]!) {
cell.accessoryType = .none
}
return cell
}
<强>结果
答案 3 :(得分:0)
只是一个小小的改变
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell{
let cell = self.tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! MesTalentsChoixCell
cell.verb!.text = arrayVerbCount[indexPath.row].verb
if cell.isSelected
{
cell.accessoryType = UITableViewCellAccessoryType.checkmark
}
else
{
cell.accessoryType = UITableViewCellAccessoryType.none
}
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath){
let cell = tableView.cellForRow(at: indexPath)
//toggle the state
cell!.isSelected = !cell!.isSelected
if cell!.isSelected
{
cell!.accessoryType = UITableViewCellAccessoryType.checkmark
}
else
{
cell!.accessoryType = UITableViewCellAccessoryType.none
}
}
注意:您还应该为公共代码创建方法: - )