我在几个按钮上使用了一个UIPickerView，当我按下第一个按钮时，它显示了正确的数据，但是问题是当我按下第二个和第三个按钮时，其余按钮显示了第一个按钮的数据相同，而不是每个按钮连接的数据。我尝试了很多事情，但仍然无法正常工作。我不知道如果有人可以帮助我，会是什么问题
class SearchBuyVC: UIViewController {
@IBOutlet weak var optionV: UIView!
@IBOutlet weak var mainPV: UIPickerView!
@IBOutlet weak var typePV: UIPickerView!
@IBOutlet weak var PricePV: UIPickerView!
@IBOutlet weak var priceMaxPV: UIPickerView!
@IBOutlet weak var buildMinPV: UIPickerView!
@IBOutlet weak var buildMaxPV: UIPickerView!
@IBOutlet weak var tenurePV: UIPickerView!
@IBOutlet weak var doneBtn: UIButton!
@IBOutlet weak var searchBtn: UIButton!
@IBOutlet weak var typeBtn: UIButton!
@IBOutlet weak var minPriceBtn: UIButton!
@IBOutlet weak var maxPriceBtn: UIButton!
@IBOutlet weak var buildMinBtn: UIButton!
@IBOutlet weak var tenureBtn: UIButton!
@IBOutlet weak var buildMaxBtn: UIButton!
@IBOutlet weak var bedView: UILabel!
@IBOutlet weak var bathView: UILabel!
var optionSelector = 0
let searchData = ["Search by Areas", "Search by Map", "Search by LRT/MRTs", "Search by Schools", "Search by Propery Name"]
let typeData = ["All Residential", "All Commerical"]
let minPriceData = ["Any", "100 k", "200 k", "300 k", "400 k", "500 k", "600 k", "700 k", "800 k", "900 k"]
let maxPriceData = ["Any", "700 k", "800 k", "900 k", "1 m", "2 m", "4 m", "6 m", "8 m", "10 m"]
let buildMinData = ["Any", "500", "1,000", "1,500", "2,000", "2,500", "3,000", "3,500"]
let buildMaxData = ["Any", "4,000", "4,500", "5,000", "6,000", "8,000", "10,000", "20,000"]
let tenureData = ["Any", "Freehold", "Leasehold", "MalayReserve Land"]
override func viewDidLoad() {
super.viewDidLoad()
setUpNav(arrowType: 2)
mainPV.delegate = self
typePV.delegate = self
PricePV.delegate = self
priceMaxPV.delegate = self
buildMinPV.delegate = self
buildMaxPV.delegate = self
tenurePV.delegate = self
}
override func viewDidAppear(_ animated: Bool) {
self.navigationController?.setNavigationBarHidden(false, animated: true)
}
@IBAction func selectOptionsPressed(_ sender: Any) {
openOptions()
}
@IBAction func typeOptionPressed(_ sender: Any) {
openOptions()
}
@IBAction func minPriceOptionPressed(_ sender: Any) {
openOptions()
}
@IBAction func maxPriceOptionPressed(_ sender: Any) {
openOptions()
}
@IBAction func buildMaxOptionPressed(_ sender: Any) {
openOptions()
}
@IBAction func buildMinOptionPressed(_ sender: Any) {
openOptions()
}
@IBAction func donePressed(_ sender: Any) {
switch optionSelector {
case 0:
FiltersController.instance.showAreaFilter(nc: self.navigationController!)
case 1:
FiltersController.instance.showMapFilter(nc: self.navigationController!)
case 2:
FiltersController.instance.showTrainStations(nc: self.navigationController!)
case 3:
FiltersController.instance.showSchoolFilter(nc: self.navigationController!)
default:
FiltersController.instance.showNameFilter(nc: self.navigationController!)
}
closeOptions()
}
func openOptions() {
optionV.isHidden = false
mainPV.isHidden = false
doneBtn.isHidden = false
typePV.isHidden = false
PricePV.isHidden = false
priceMaxPV.isHidden = false
buildMinPV.isHidden = false
buildMaxPV.isHidden = false
tenurePV.isHidden = false
}
func closeOptions(){
optionV.isHidden = true
mainPV.isHidden = true
doneBtn.isHidden = true
typePV.isHidden = true
PricePV.isHidden = true
priceMaxPV.isHidden = true
buildMinPV.isHidden = true
buildMaxPV.isHidden = true
tenurePV.isHidden = true
}
@IBAction func nextPressed(_ sender: Any) {
ListingController.instance.showBuyListing(nc: self.navigationController!)
}
}
extension SearchBuyVC: UIPickerViewDelegate, UIPickerViewDataSource {
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
if pickerView.tag == 0{
return searchData.count
}
if pickerView.tag == 1{
return typeData.count
}
if pickerView.tag == 2{
return minPriceData.count
}
if pickerView.tag == 3{
return maxPriceData.count
}
if pickerView.tag == 4{
return buildMinData.count
}
if pickerView.tag == 5{
return buildMaxData.count
}
if pickerView.tag == 6{
return tenureData.count
}
return 0
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
if pickerView.tag == 0{
return searchData[row]
}
if pickerView.tag == 1{
return typeData[row]
}
if pickerView.tag == 2{
return minPriceData[row]
}
if pickerView.tag == 3{
return maxPriceData[row]
}
if pickerView.tag == 4{
return buildMinData[row]
}
if pickerView.tag == 5{
return buildMaxData[row]
}
if pickerView.tag == 6{
return tenureData[row]
}
return ""
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
if pickerView.tag == 0{
searchBtn.setTitle(searchData[row], for: .normal)
if pickerView.tag == 1{
typeBtn.setTitle(typeData[row], for: .normal)
}
if pickerView.tag == 2{
minPriceBtn.setTitle(minPriceData[row], for: .normal)
}
if pickerView.tag == 3{
maxPriceBtn.setTitle(maxPriceData[row], for: .normal)
}
if pickerView.tag == 4{
buildMinBtn.setTitle(buildMinData[row], for: .normal)
}
if pickerView.tag == 5{
buildMaxBtn.setTitle(buildMaxData[row], for: .normal)
}
if pickerView.tag == 6{
tenureBtn.setTitle(tenureData[row], for: .normal)
}
}
}
}
答案 0 :(得分：1)
仅具有一个选择器视图，并在按钮操作上更改数据源。然后重新加载pickerview。
创建selectedBtn变量以存储当前所选按钮引用，并创建tempArr变量以存储当前所选按钮的数据以显示在选择器视图中。
class SearchBuyVC: UIViewController {
@IBOutlet weak var pickerView: UIPickerView!
@IBOutlet weak var doneBtn: UIButton!
@IBOutlet weak var searchBtn: UIButton!
@IBOutlet weak var typeBtn: UIButton!
@IBOutlet weak var minPriceBtn: UIButton!
@IBOutlet weak var maxPriceBtn: UIButton!
@IBOutlet weak var buildMinBtn: UIButton!
@IBOutlet weak var tenureBtn: UIButton!
@IBOutlet weak var buildMaxBtn: UIButton!
@IBOutlet weak var bedView: UILabel!
@IBOutlet weak var bathView: UILabel!
var optionSelector = 0
let searchData = ["Search by Areas", "Search by Map", "Search by LRT/MRTs", "Search by Schools", "Search by Propery Name"]
let typeData = ["All Residential", "All Commerical"]
let minPriceData = ["Any", "100 k", "200 k", "300 k", "400 k", "500 k", "600 k", "700 k", "800 k", "900 k"]
let maxPriceData = ["Any", "700 k", "800 k", "900 k", "1 m", "2 m", "4 m", "6 m", "8 m", "10 m"]
let buildMinData = ["Any", "500", "1,000", "1,500", "2,000", "2,500", "3,000", "3,500"]
let buildMaxData = ["Any", "4,000", "4,500", "5,000", "6,000", "8,000", "10,000", "20,000"]
let tenureData = ["Any", "Freehold", "Leasehold", "MalayReserve Land"]
var tempArr = [String]()
var selectedBtn = UIButton()
override func viewDidLoad() {
super.viewDidLoad()
pickerView.delegate = self
pickerView.dataSource = self
}
@IBAction func allButtionActions(_ sender: UIButton) {
selectedBtn = sender
if sender == typeBtn {
tempArr = typeData
} else if sender == minPriceBtn {
tempArr = minPriceData
} else if sender == maxPriceBtn {
tempArr = maxPriceData
} else if sender == buildMinBtn {
tempArr = buildMinData
} else if sender == tenureBtn {
tempArr = tenureData
} else if sender == buildMaxBtn {
tempArr = buildMaxData
}
pickerView.reloadAllComponents()
pickerView.isHidden = false
}
}
extension SearchBuyVC: UIPickerViewDelegate, UIPickerViewDataSource {
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return tempArr.count
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return tempArr[row]
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
selectedBtn.setTitle(tempArr[row], for: .normal)
}
}