我必须使用UITableView中的数据填充UIViewController。因此,当用户单击每个UITableview Cell时,应显示另一个屏幕,其中填充了来自相应单击的UITableView Cell的一些数据。我不确定是否应该使用“Segue”到另一个屏幕,或者是否有更好和“干净”的方式来做到这一点。你们会建议我做什么?
故事板:
详细信息屏幕:
import UIKit
class TelaDetalheProdutos: UIViewController {
@IBOutlet weak var ImageView: UIImageView!
@IBOutlet weak var labelNomeEDesc: UILabel!
@IBOutlet weak var labelDe: UILabel!
@IBOutlet weak var labelPor: UILabel!
@IBOutlet weak var labelNomeProduto: UILabel!
@IBOutlet weak var labelDescricao: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
}
}
的ViewController:
import UIKit
class ViewController: UIViewController, UICollectionViewDataSource, UITableViewDataSource {
@IBOutlet weak var tableViewTopSell: UITableView!
@IBOutlet var collectionView: UICollectionView!
@IBOutlet weak var collectionViewBanner: UICollectionView!
var dataSource: [Content] = [Content]()
var dataBanner: [Banner] = [Banner]()
var dataTopSold: [Top10] = [Top10]()
override func viewDidLoad() {
super.viewDidLoad()
//SetupNavBarCustom
self.navigationController?.navigationBar.CustomNavigationBar()
let logo = UIImage(named: "tag.png")
let imageView = UIImageView(image:logo)
self.navigationItem.titleView = imageView
//CallAPIData
getTopSold { (data) in
DispatchQueue.main.async {
self.dataTopSold = data
self.tableViewTopSell.reloadData()
}
}
getBanner { (data) in
DispatchQueue.main.async {
self.dataBanner = data
self.collectionViewBanner.reloadData()
}
}
getAudiobooksAPI { (data) in
DispatchQueue.main.async {
self.dataSource = data
self.collectionView.reloadData()
}
}
}
//CollectionView
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
if (collectionView == self.collectionView) {
return self.dataSource.count
}else{
return self.dataBanner.count
}}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if (collectionView == self.collectionView) {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "collectionViewCell", for: indexPath) as! CollectionViewCell
let content = self.dataSource[indexPath.item]
cell.bookLabel.text = content.descricao
cell.bookImage.setImage(url: content.urlImagem, placeholder: "")
return cell
}else if (collectionView == self.collectionViewBanner) {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "collectionViewCellBanner", for: indexPath) as! CollectionViewCell
let content = self.dataBanner[indexPath.item]
cell.bannerImage.setImage(url: content.urlImagem, placeholder: "")
return cell
}
return UICollectionViewCell()
}
//TableView
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.dataTopSold.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "topSoldCell", for: indexPath) as! TableViewCell
let content = self.dataTopSold[indexPath.item]
cell.labelNomeTopSell.text = content.nome
cell.imageViewTopSell.setImage(url: content.urlImagem, placeholder: "")
cell.labelPrecoDe.text = "R$ \(content.precoDe)"
cell.labelPrecoPor.text = "R$ 119.99"
return cell
}
}
extension UIImageView{
func setImage(url : String, placeholder: String, callback : (() -> Void)? = nil){
self.image = UIImage(named: "no-photo")
URLSession.shared.dataTask(with: NSURL(string: url)! as URL, completionHandler: { (data, response, error) -> Void in
guard error == nil else{
return
}
DispatchQueue.main.async(execute: { () -> Void in
let image = UIImage(data: data!)
self.image = image
if let callback = callback{
callback()
}
})
}).resume()
}
}
答案 0 :(得分:2)
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
switch segue.destination{
case is DestinationViewController:
let vc = segue.destination as! DestinationViewController
//Share your data to DestinationViewController
//Like vc.variableName = value
default:
break
}
}
答案 1 :(得分:0)
确保您的共享数据在DestinationViewController中变为实际变量,如var artistToDisplay: String?
,而不是IBOutlet。
您可能还需要实施tableView(_:didSelectRowAt:_)
和performSegue(withIdentifier:sender:)
方法来开始segue。