【发布时间】：2016-06-05 15:48:20
【问题描述】：
当我从 UIPickerView 中选择一些值时，我希望更新自定义 UITableViewCell 中的 UITextFiled.text。
如果你看一下图片，我点击自定义 UITableViewCell 中的 UITextField 并显示 UIPickerView。然后我选择数字和标签“完成”按钮。但我不知道如何将选定的值从 UIPickerView 传递到我的自定义 UITableViewCell，其中是我的 UITextFiled.text。
谁能帮帮我？谢谢
自定义单元格
class JamkaTableViewCell: UITableViewCell, pickerChangedDelegate {
@IBOutlet weak var jmenoHraceLabel: UILabel!
@IBOutlet weak var parTextField: UITextField!
func onPickerChanged(val: String) {
self.parTextField.text = val
print(self.parTextField.text)
}
}
视图控制器
import UIKit
protocol pickerChangedDelegate {
func onPickerChanged(val: String)
}
class JamkaViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, UIPickerViewDelegate, UIPickerViewDataSource, UITextFieldDelegate {
@IBOutlet weak var vzdalenostLabel: UILabel!
@IBOutlet weak var jmenoLabel: UILabel!
@IBOutlet weak var parJamkyLabel: UILabel!
@IBOutlet weak var tableView: UITableView!
@IBOutlet weak var scrollView: UIScrollView!
@IBOutlet weak var jamkaView: UIView!
var picker: UIPickerView!
var karta:Karta = Karta.init()
var index = 0
var vzdalenost:Int!
var jmenoJamky:String = ""
var parJamky:Int!
var pocetKopu:[String] = []
var hrac:Hrac!
var delegate: pickerChangedDelegate? = nil
override func viewDidLoad() {
super.viewDidLoad()
vzdalenostLabel.text = "\(self.vzdalenost)"
jmenoLabel.text = self.jmenoJamky
parJamkyLabel.text = "\(self.parJamky)"
//Vypocitat pocet kopu a trestných bodů
pocetKopu(self.parJamky)
//Jamka view
self.jamkaView.layer.cornerRadius = 5
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.karta.seznamHracu.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cellIdentifier = "Cell"
let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath: indexPath) as! JamkaTableViewCell
self.hrac = self.karta.seznamHracu[indexPath.row]
//Vybiratko na pary
self.picker = UIPickerView.init()
self.picker.delegate = self
self.picker.dataSource = self
self.picker.backgroundColor = svetleSeda
let pickerToolbar = UIToolbar()
pickerToolbar.barStyle = .Default
pickerToolbar.sizeToFit()
pickerToolbar.tintColor = UIColor.blackColor()
let hotovoTlacitko = UIBarButtonItem(barButtonSystemItem: .Done, target: self, action: #selector(JamkaViewController.skrytPickerView))
pickerToolbar.setItems([hotovoTlacitko], animated: true)
pickerToolbar.userInteractionEnabled = true
cell.parTextField.inputView = self.picker
cell.parTextField.inputAccessoryView = pickerToolbar
cell.jmenoHraceLabel.text = self.hrac.jmeno
print(cell.parTextField.text)
return cell
}
func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return self.pocetKopu.count
}
func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return self.pocetKopu[row]
}
func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
delegate?.onPickerChanged(self.pocetKopu[row])
print("did select \(self.pocetKopu[row])")
}
func pocetKopu(parJamky: Int) -> [String] {
let maximalniPocetKopu = (3*parJamky)
for i in 1...maximalniPocetKopu {
let str = String(i)
self.pocetKopu.append(str)
}
//Trestne body
let trestneBody = String(4*parJamky)
self.pocetKopu.append(trestneBody)
return self.pocetKopu
}
func textFieldShouldBeginEditing(textField: UITextField) -> Bool {
let pointInTable:CGPoint = textField.superview!.convertPoint(textField.frame.origin, toView:self.tableView)
var contentOffset:CGPoint = self.tableView.contentOffset
contentOffset.y = pointInTable.y
if let accessoryView = textField.inputAccessoryView {
contentOffset.y -= accessoryView.frame.size.height
}
self.tableView.contentOffset = contentOffset
return true;
}
func textFieldDidEndEditing(textField: UITextField) {
self.tableView.setContentOffset(CGPointMake(0, 0), animated: true)
scrollView.setContentOffset(CGPointMake(0, 0), animated: true)
}
func textFieldShouldReturn(textField: UITextField) -> Bool {
textField.resignFirstResponder()
return true
}
func skrytPickerView() -> () {
self.view.endEditing(true)
}
}
【问题讨论】：
标签： swift uipickerview