我有多个UIPickerView的问题,我在UICollectionView上有8个,当我滚动第一个PickerView并且第五个PickerView开始自己滚动并获取第一个的相同值时,我滚动第二个PickerView和取第六个PickerView的相同值,依此类推。有这个问题的解决方案吗?谢谢你们。
以下是此问题的视频:Video
代码:
import UIKit
class Cards: UICollectionViewCell {
var number: [String] = []
let firaSansFont = FiraSansFont()
let cardView: UIView = {
let view = UIView()
view.backgroundColor = #colorLiteral(red: 1, green: 1, blue: 1, alpha: 1)
view.layer.cornerRadius = 14
view.layer.shadowOpacity = 0.20
view.layer.shadowOffset = CGSize(width: 0, height: 10)
view.layer.shadowRadius = 10
view.frame.size = CGSize(width: 200, height: 200)
return view
}()
let productoTitle: UILabel = {
let attributes: [NSAttributedStringKey:Any] = [.foregroundColor : #colorLiteral(red: 0.2901960784, green: 0.2901960784, blue: 0.2901960784, alpha: 1)]
let label = UILabel()
label.attributedText = NSAttributedString(string: "Titulo", attributes: attributes)
label.frame = CGRect(x: 16, y: 16, width: 200, height: 30)
label.textAlignment = .left
return label
}()
let backgroundCard: UIImageView = {
let image = UIImageView(image: #imageLiteral(resourceName: "tortillaNormal"))
image.contentMode = .scaleAspectFit
image.layer.opacity = 0.5
image.frame = CGRect(x: 20, y: 20, width: 160, height: 160)
return image
}()
let numberPicker: UIPickerView = {
let picker = UIPickerView()
picker.frame = CGRect(x: 20, y: 70, width: 160, height: 100)
return picker
}()
override init(frame: CGRect) {
super.init(frame: frame)
backgroundColor = #colorLiteral(red: 1, green: 1, blue: 1, alpha: 1)
layer.cornerRadius = 14
layer.shadowOpacity = 0.20
layer.shadowOffset = CGSize(width: 0, height: 10)
layer.shadowRadius = 10
addViews()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func addViews() {
for i in 0...100 { number.append(String(i)) }
addSubview(cardView)
addSubview(backgroundCard)
productoTitle.font = firaSansFont.regular(size: 28)
addSubview(productoTitle)
numberPicker.dataSource = self
numberPicker.delegate = self
addSubview(numberPicker)
let cantidadLabel: UILabel = {
let label = UILabel()
label.frame = CGRect(x: 0, y: 70, width: 200, height: 20)
label.text = "Cantidad"
label.font = UIFont.systemFont(ofSize: 16, weight: .semibold)
label.textAlignment = .center
return label
}()
addSubview(cantidadLabel)
}
}
extension Cards: UIPickerViewDelegate, UIPickerViewDataSource {
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return 100
}
func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
var pickerLabel: UILabel? = (view as? UILabel)
if pickerLabel == nil {
pickerLabel = UILabel()
pickerLabel?.font = UIFont.systemFont(ofSize: 30, weight: .bold)
pickerLabel?.textAlignment = .center
}
pickerLabel?.text = number[row]
return pickerLabel!
}
}
extension ViewController: UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 8
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = cardCollectionView.dequeueReusableCell(withReuseIdentifier: cellID, for: indexPath) as! Cards
cell.productoTitle.text = productosTitles[indexPath.item]
cell.backgroundCard.image = productosImages[indexPath.item]
return cell
}
}