我正在为几个按钮使用一个 UIPickerView，当我按下第一个按钮时，它会显示正确的数据，但问题是当我按下第二个和第三个以及其余按钮时向我显示第一个按钮的相同数据，而不是连接到每个按钮的数据。我尝试了很多东西，但它仍然不起作用。我不知道是什么问题，如果有人可以帮助我，我会是
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)
}
}
}
}
最佳答案
只有一个选择器 View 并根据按钮操作更改数据源。然后重新加载pickerview。
创建 selectedBtn 变量来存储当前选定的按钮引用和 tempArr 变量来存储当前选定按钮的数据以显示在选择器 View 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)
}
}
关于ios - 我如何将一个 PickerView 用于显示不同数据的几个按钮，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/55486948/