如何将数据从表格视图单元格传回表格视图类？
Posted
技术标签:
【中文标题】如何将数据从表格视图单元格传回表格视图类？【英文标题】：how to pass the data back from table view cell to table view class? 【发布时间】：2017-08-21 04:32:30 【问题描述】：在这三个部分中，我需要最后一个部分 tableviewcell 数据需要传递给 table view 类，而第一部分中的另一个部分我有单选按钮，只要它被启用，那么只需要显示第三部分在表格视图上，如果不是应该隐藏
表格视图类
let url = "http://www.json-generator.com/api/json/get/bMlqRPbjGW?indent=2"
let urlString = "http://www.json-generator.com/api/json/get/bVWKKHtWbm?indent=2"
var shippingArray :[[String: AnyObject]] = []
var keys = [String]()
let myActivityIndicator = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.gray)
var arrayss = [String:AnyObject]()
var checkIsRadioselect = [Int]()
var checkIsButtonEnable = [Int]()
var checkIsPaymentRadioSelect = [Int]()
let response : [Int] = []
var chekIndex:IndexPath?
var selected: Bool = true
var dataArray :[Any] = []
var A: [Any] = []
var B: [Any] = []
override func viewDidLoad()
super.viewDidLoad()
_ = UIApplication.shared.statusBarOrientation
tableDetails.isHidden = true
continueButton.layer.cornerRadius = 5
myActivityIndicator.frame = CGRect(x: 130, y: 320, width: 30, height: 30)
myActivityIndicator.hidesWhenStopped = true
myActivityIndicator.startAnimating()
view.addSubview(myActivityIndicator)
myActivityIndicator.translatesAutoresizingMaskIntoConstraints = false
let horizontalConstraint = NSLayoutConstraint(item: myActivityIndicator, attribute: NSLayoutAttribute.centerX, relatedBy: NSLayoutRelation.equal, toItem: view, attribute: NSLayoutAttribute.centerX, multiplier: 1, constant: 0)
view.addConstraint(horizontalConstraint)
let verticalConstraint = NSLayoutConstraint(item: myActivityIndicator, attribute: NSLayoutAttribute.centerY, relatedBy: NSLayoutRelation.equal, toItem: view, attribute: NSLayoutAttribute.centerY, multiplier: 1, constant: 0)
view.addConstraint(verticalConstraint)
self.shippingaddressURL()
tableDetails.delegate = self
tableDetails.dataSource = self
tableDetails.separatorInset = UIEdgeInsets.zero
tableDetails.rowHeight = UITableViewAutomaticDimension
tableDetails.estimatedRowHeight = 50
self.title = "Checkout"
// Do any additional setup after loading the view.
func shippingaddressURL()
let url = NSURL(string: self.url)
URLSession.shared.dataTask(with: (url as URL?)!, completionHandler: (data, response, error) -> Void in
if let jsonObj = try? JSONSerialization.jsonObject(with: data!, options: .allowFragments) as? NSDictionary
self.shippingArray = (jsonObj!.value(forKey: "address") as? [[String: AnyObject]])!
OperationQueue.main.addOperation(
self.tableDetails.reloadData()
)
).resume()
@IBAction func selectRadioButton(_ sender: KGRadioButton)
let chekIndex = self.checkIsRadioSelect.index(of: sender.tag)
_ = self.checkIsButtonEnable.index(of: sender.tag)
if sender.isSelected
else
if(chekIndex == nil)
self.checkIsRadioSelect.removeAll(keepingCapacity: false)
self.checkIsRadioSelect.append(sender.tag)
self.checkIsButtonEnable.removeAll(keepingCapacity: false)
self.checkIsButtonEnable.append(sender.tag)
self.tableDetails.reloadData()
func numberOfSections(in tableView: UITableView) -> Int
return 3
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String?
if (section == 0)
return "SHIPPING ADDRESS"
else if (section == 2)
return "SHIPPING METHOD"
else
return ""
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat
if (indexPath.section == 0)
return UITableViewAutomaticDimension
else if (indexPath.section == 1)
return 62
else
return 282
func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int)
let header = view as! UITableViewHeaderFooterView
header.textLabel?.textColor = UIColor.gray
header.textLabel?.textAlignment = NSTextAlignment.center
header.textLabel?.font = UIFont(name: "Futura", size: 17)
@IBAction func newAddressAction(_ sender: Any)
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let addtoCartVC = storyboard.instantiateViewController(withIdentifier: "newAddress") as! NewAddressViewController
self.navigationController?.pushViewController(addtoCartVC, animated: true)
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
if (section == 0)
return shippingArray.count
else
return 1
@IBAction func continueButtonAction(_ sender: Any)
if selected == false
let radiobutton = SCLAlertView()
_ = radiobutton.showError("Warning", subTitle: "Please select shipping method", closeButtonTitle: "OK")
else
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let addtoCartVC = storyboard.instantiateViewController(withIdentifier: "payment") as! PaymentMethodViewController
self.navigationController?.pushViewController(addtoCartVC, animated: true)
@IBAction func deleteAction(_ sender: UIButton)
shippingArray.remove(at:sender.tag)
self.tableDetails.reloadData()
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
if (indexPath.section == 0)
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! AddressTableViewCell
tableDetails.isHidden = false
myActivityIndicator.stopAnimating()
let arr = shippingArray[indexPath.row]
cell.deleteButton.tag = indexPath.row
cell.nameLabel.text = arr["name"] as? String
cell.addressLabel.text = arr["address"]as? String
let mobilenumber : Any = arr["number"] as AnyObject
cell.mobileNumberLabel.text = "\(mobilenumber)"
cell.radioButton.tag = indexPath.row
cell.editButton.tag = indexPath.row
cell.deleteButton.tag = indexPath.row
cell.editButton.isHidden = true
cell.deleteButton.isHidden = true
let checkIndex = self.checkIsRadioSelect.index(of: indexPath.row)
if(checkIndex != nil)
cell.radioButton.isSelected = true
cell.editButton.isHidden = false
cell.deleteButton.isHidden = false
else
cell.radioButton.isSelected = false
cell.editButton.isHidden = true
cell.deleteButton.isHidden = true
return cell
else if (indexPath.section == 1)
let cell = tableView.dequeueReusableCell(withIdentifier: "addresscell", for: indexPath) as! CreateNewAddressTableViewCell
cell.newAddressButton.addTarget(self, action: #selector(newAddressAction(_:)), for: .touchUpInside)
return cell
else
let cell = tableView.dequeueReusableCell(withIdentifier: "shippingmethodcell", for: indexPath) as! MethodTableViewCell
return cell
表格视图单元格类
var chekIndex:IndexPath?
var arrayss = [String:AnyObject]()
var keys = [String]()
let urlString = "http://www.json-generator.com/api/json/get/bVgbyVQGmq?indent=2"
override func awakeFromNib()
super.awakeFromNib()
self.shippingmethodURL()
shippingTableView.delegate = self
shippingTableView.dataSource = self
shippingTableView.rowHeight = UITableViewAutomaticDimension
shippingTableView.estimatedRowHeight = shippingTableView.rowHeight
// Initialization code
@IBAction func paymentRadioAction(_ sender: KGRadioButton)
_ = sender.center
let centralPoint = sender.superview?.convert(sender.center, to:self.shippingTableView)
let indexPath = self.shippingTableView.indexPathForRow(at: centralPoint!)
if sender.isSelected
else
chekIndex = indexPath
isSelected = true
self.shippingTableView.reloadData()
func shippingmethodURL()
let url = NSURL(string: self.urlString)
URLSession.shared.dataTask(with: (url as URL?)!, completionHandler: (data, response, error) -> Void in
if let jsonObj = try? JSONSerialization.jsonObject(with: data!, options: .allowFragments) as? NSDictionary
self.arrayss = jsonObj as! [String : AnyObject]
print(self.arrayss)
self.keys = jsonObj?.allKeys as! [String]
print(self.keys)
OperationQueue.main.addOperation(
self.shippingTableView.reloadData()
let sectionHeight = self.arrayss.count * 31
let cellHeight = self.keys.count * 44
self.shippingHeightConstraint.constant = CGFloat(sectionHeight + cellHeight)
)
).resume()
func numberOfSections(in tableView: UITableView) -> Int
return arrayss.count
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String?
return self.keys[section]
func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int)
let header = view as! UITableViewHeaderFooterView
header.tintColor = UIColor.white
header.textLabel?.textColor = UIColor.darkGray
header.textLabel?.textAlignment = NSTextAlignment.left
header.textLabel?.font = UIFont(name: "Futura", size: 17)
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
let key = self.keys[section]
let a :[Any] = arrayss[key] as! [Any]
return a.count
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
let cell = tableView.dequeueReusableCell(withIdentifier: "shippingCell", for: indexPath) as! ShippingMethodTableViewCell
let bgColorView = UIView()
bgColorView.backgroundColor = UIColor.white
cell.selectedBackgroundView = bgColorView
let key = self.keys[indexPath.section]
var a :[Any] = arrayss[key] as! [Any]
var dictionary = a[indexPath.row] as! [String:Any]
let name = dictionary["name"]
let price = dictionary ["price"]
cell.methodLabel.text = name as? String
cell.priceLabel.text = price as? String
cell.radioButton.addTarget(self, action: #selector(paymentRadioAction), for: .touchUpInside)
if chekIndex == indexPath
cell.radioButton.isSelected = true
else
cell.radioButton.isSelected = false
return cell
这里的布局如下所示
【问题讨论】：
【参考方案1】：var addressSelected : Bool = false
@IBAction func selectRadioButton(_ sender: KGRadioButton)
let chekIndex = self.checkIsRadioSelect.index(of: sender.tag)
_ = self.checkIsButtonEnable.index(of: sender.tag)
tableDetails.tableFooterView?.isHidden = false
if sender.isSelected
else
if(chekIndex == nil)
self.checkIsRadioSelect.removeAll(keepingCapacity: false)
self.checkIsRadioSelect.append(sender.tag)
self.checkIsButtonEnable.removeAll(keepingCapacity: false)
self.checkIsButtonEnable.append(sender.tag)
self.tableDetails.reloadData()
self.addressSelected = true
tableDetails.reloadData()
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
if (addressSelected == false)
if (section == 0)
return shippingArray.count
else if (section == 1)
return 1
else
return 0
else
if (section == 0)
return shippingArray.count
else
return 1
【讨论】：
还需要如何将数据从表格视图单元格传递到表格视图类？以上是关于如何将数据从表格视图单元格传回表格视图类？的主要内容，如果未能解决你的问题，请参考以下文章