Ios 获取嵌入在UITableViewCell中的UITable单元格的indexPath
下面是TableView的结构: 有一个主UITableView,在每个UITableView单元格中有另一个UITableView 截图: 每个UITableViewCells都被设计为自定义视图,并通过在cellForRowAtIndexPath函数中从Nib加载来添加 我要做的是,对于在内部表视图中选择的任何选项,我要获取嵌入表视图的单元格的索引路径 文件布局: 我试图遵循Paulw11所提到的代表方法: 注意:Paulw11建议的方法非常有效 代码(TableVC):Ios 获取嵌入在UITableViewCell中的UITable单元格的indexPath,ios,swift,uitableview,Ios,Swift,Uitableview,下面是TableView的结构: 有一个主UITableView,在每个UITableView单元格中有另一个UITableView 截图: 每个UITableViewCells都被设计为自定义视图,并通过在cellForRowAtIndexPath函数中从Nib加载来添加 我要做的是,对于在内部表视图中选择的任何选项,我要获取嵌入表视图的单元格的索引路径 文件布局: 我试图遵循Paulw11所提到的代表方法: 注意:Paulw11建议的方法非常有效 代码(TableVC): class
class TableVC: UITableViewController, QuestionCellDelegate {
override func viewDidLoad() {
super.viewDidLoad()
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return 5
}
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 220.0
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = Bundle.main.loadNibNamed("QuestionCell", owner: self, options: nil)?.first as! QuestionCell
cell.delegate = self
return cell
}
func sendCellInfo(cell: UITableViewCell) {
print(cell)
let indexPathForQuestion = tableView.indexPath(for: cell)
print(indexPathForQuestion)
}}
protocol QuestionCellDelegate: class {
func sendCellInfo(cell: UITableViewCell)
}
class QuestionCell: UITableViewCell, UITableViewDelegate, UITableViewDataSource{
@IBOutlet weak var optionsTableview: UITableView!
var delegate: QuestionCellDelegate?
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
self.optionsTableview.delegate = self
self.optionsTableview.dataSource = self
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = Bundle.main.loadNibNamed("OptionsCell", owner: self, options: nil)?.first as! OptionsCell
return cell
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 4
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let selectedCell = optionsTableview.cellForRow(at: indexPath)
print("selectedCell")
self.delegate?.sendCellInfo(cell: selectedCell!)
}}
class OptionsCell: UITableViewCell {
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
}}
func sendCellInfo(cell: UITableViewCell) {
/*** Take the cell passed and convert to a CGPoint wrt to TableView ***/
let cellPosition: CGPoint = cell.convert(cell.bounds.origin, to: self.tableView)
/*** wrt to CGPoint find index on current TableView ***/
/*** Returns as Section,Cell ***/
let indexPathForSelectedCell = (tableView.indexPathForRow(at: cellPosition)?.row)
print(indexPathForSelectedCell)
}
代码(问题单元格):
class TableVC: UITableViewController, QuestionCellDelegate {
override func viewDidLoad() {
super.viewDidLoad()
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return 5
}
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 220.0
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = Bundle.main.loadNibNamed("QuestionCell", owner: self, options: nil)?.first as! QuestionCell
cell.delegate = self
return cell
}
func sendCellInfo(cell: UITableViewCell) {
print(cell)
let indexPathForQuestion = tableView.indexPath(for: cell)
print(indexPathForQuestion)
}}
protocol QuestionCellDelegate: class {
func sendCellInfo(cell: UITableViewCell)
}
class QuestionCell: UITableViewCell, UITableViewDelegate, UITableViewDataSource{
@IBOutlet weak var optionsTableview: UITableView!
var delegate: QuestionCellDelegate?
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
self.optionsTableview.delegate = self
self.optionsTableview.dataSource = self
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = Bundle.main.loadNibNamed("OptionsCell", owner: self, options: nil)?.first as! OptionsCell
return cell
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 4
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let selectedCell = optionsTableview.cellForRow(at: indexPath)
print("selectedCell")
self.delegate?.sendCellInfo(cell: selectedCell!)
}}
class OptionsCell: UITableViewCell {
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
}}
func sendCellInfo(cell: UITableViewCell) {
/*** Take the cell passed and convert to a CGPoint wrt to TableView ***/
let cellPosition: CGPoint = cell.convert(cell.bounds.origin, to: self.tableView)
/*** wrt to CGPoint find index on current TableView ***/
/*** Returns as Section,Cell ***/
let indexPathForSelectedCell = (tableView.indexPathForRow(at: cellPosition)?.row)
print(indexPathForSelectedCell)
}
代码(选项单元格):
class TableVC: UITableViewController, QuestionCellDelegate {
override func viewDidLoad() {
super.viewDidLoad()
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return 5
}
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 220.0
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = Bundle.main.loadNibNamed("QuestionCell", owner: self, options: nil)?.first as! QuestionCell
cell.delegate = self
return cell
}
func sendCellInfo(cell: UITableViewCell) {
print(cell)
let indexPathForQuestion = tableView.indexPath(for: cell)
print(indexPathForQuestion)
}}
protocol QuestionCellDelegate: class {
func sendCellInfo(cell: UITableViewCell)
}
class QuestionCell: UITableViewCell, UITableViewDelegate, UITableViewDataSource{
@IBOutlet weak var optionsTableview: UITableView!
var delegate: QuestionCellDelegate?
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
self.optionsTableview.delegate = self
self.optionsTableview.dataSource = self
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = Bundle.main.loadNibNamed("OptionsCell", owner: self, options: nil)?.first as! OptionsCell
return cell
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 4
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let selectedCell = optionsTableview.cellForRow(at: indexPath)
print("selectedCell")
self.delegate?.sendCellInfo(cell: selectedCell!)
}}
class OptionsCell: UITableViewCell {
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
}}
func sendCellInfo(cell: UITableViewCell) {
/*** Take the cell passed and convert to a CGPoint wrt to TableView ***/
let cellPosition: CGPoint = cell.convert(cell.bounds.origin, to: self.tableView)
/*** wrt to CGPoint find index on current TableView ***/
/*** Returns as Section,Cell ***/
let indexPathForSelectedCell = (tableView.indexPathForRow(at: cellPosition)?.row)
print(indexPathForSelectedCell)
}
注意:当前O/p为nil
注意:根据pbasdf的注释更改了代码,意识到了错误
使用以下命令:
tableView.CellForRowatineXpath(YourIndexPath)为!OptionCell
您可以将自己的indexPath作为全局变量,并将其归档到didSelectRow方法中
YourIndexPath=indexPath找到了解决方案,原因是pbasdf注释: 表VC中的委托函数:
class TableVC: UITableViewController, QuestionCellDelegate {
override func viewDidLoad() {
super.viewDidLoad()
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return 5
}
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 220.0
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = Bundle.main.loadNibNamed("QuestionCell", owner: self, options: nil)?.first as! QuestionCell
cell.delegate = self
return cell
}
func sendCellInfo(cell: UITableViewCell) {
print(cell)
let indexPathForQuestion = tableView.indexPath(for: cell)
print(indexPathForQuestion)
}}
protocol QuestionCellDelegate: class {
func sendCellInfo(cell: UITableViewCell)
}
class QuestionCell: UITableViewCell, UITableViewDelegate, UITableViewDataSource{
@IBOutlet weak var optionsTableview: UITableView!
var delegate: QuestionCellDelegate?
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
self.optionsTableview.delegate = self
self.optionsTableview.dataSource = self
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = Bundle.main.loadNibNamed("OptionsCell", owner: self, options: nil)?.first as! OptionsCell
return cell
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 4
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let selectedCell = optionsTableview.cellForRow(at: indexPath)
print("selectedCell")
self.delegate?.sendCellInfo(cell: selectedCell!)
}}
class OptionsCell: UITableViewCell {
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
}}
func sendCellInfo(cell: UITableViewCell) {
/*** Take the cell passed and convert to a CGPoint wrt to TableView ***/
let cellPosition: CGPoint = cell.convert(cell.bounds.origin, to: self.tableView)
/*** wrt to CGPoint find index on current TableView ***/
/*** Returns as Section,Cell ***/
let indexPathForSelectedCell = (tableView.indexPathForRow(at: cellPosition)?.row)
print(indexPathForSelectedCell)
}
下面的答案添加了@Supratik Majumdar请求我所说的逻辑 请尝试使用以下代码,我希望您能完成您的需求
//Initialize your question or answer in viewDidLoad or where ever you like to as shown below
self.questionArray = ["Question1", "Question2"]
self.optionArray = [["Option 1", "Option 2", "Option 3", "Option 4"], ["Option 1", "Option 2", "Option 3", "Option 4"]]
//Make us of the following tableview delegate & datasource code
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return self.questionArray.count
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.OptionArray[section].count
}
func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String {
return self.questionArray[section]
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! UITableViewCell
let currentOptionArray = self.questionArray[section]
let currentOption = currentOptionArray[indexPath.row]
cell.textLabel.text = currentOption
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let selectedIndex = indexPath
let selectedQuestionIndex = indexPath.section
let selectedOptionIndex = indexPath.row
//Make use of the data you need in the above values
}
我不知道您为什么要采用这种方法,我建议您使用带部分(问题标题)的simple UITableView&每个部分都有特定数量的单元格(选项)。使用这种方法,您可以轻松处理上述情况。根据我对上述案例的理解,如果它不能满足您的需求,请忽略它。@Bharath是的,这是一个更简单的方法,甚至更好的设计。但是,我想知道如何做到这一点。如果你想知道,你在错误的地方使用了委托设计模式。您的
QuestionCell
应定义协议,并具有符合协议的delegate
属性。您的TableVC
应该采用协议并实现相应的方法(并且,在cellForRowAt:
中,将celldelegate
属性设置为self)。QuestionCell
中的didSelectRowAt
方法应该在self.delegate?
@pbasdf上调用协议方法:你是对的。同样谢谢你。我确实做了更改,但现在我得到的O/P是nil@SupratikMajumdar尝试self.delegate?.sendCellInfo(cell:self)
而不是self.delegate?.sendCellInfo(cell:selectedCell!)
(即问题单元格,而不是选项单元格)。