我正在尝试创建一个根据URL末尾的ID解析我的JSON的函数。例如：（https://alodjinha.herokuapp.com/produto?categoriaId=1）。在这种情况下，＆＃34; categoriaId = 1＆＃34;会给我一个＆＃34;游戏＆＃34;类别作为填充游戏的JSON。它应该根据用户点击我的UICollectionView类别的每个类别而改变。因此，如果用户点击＆＃34;电影＆＃34;在我的UICollectionView上，我必须将url更改为id 2（例如）https://alodjinha.herokuapp.com/produto?categoriaId=2然后我将获得充满电影的JSON，依此类推。但是，它做错了我做错了什么？
这就是我尝试获取类别ID的方式：
func getCategoriaPorID(IdCategoria:Int, completion:@escaping ([CategoriaIDItems])->Void) {
let url = URL(string: "https://alodjinha.herokuapp.com/produto?categoriaId=\(IdCategoria)")
let session = URLSession.shared
let request = URLRequest(url: url!)
let dataTask = session.dataTask(with: request) { (data, response, error) in
guard let unwrappedData = data else { print("Error data"); return}
do {
let jsonTop10 = try JSONDecoder().decode(CategoriaIDItemsData.self, from: unwrappedData)
completion(jsonTop10.data)
}catch{
print("Could no get API data")
}
}
dataTask.resume()
}
型号：
import Foundation
//Categorias
struct Contents : Decodable {
let data : [Content]
}
struct Content : Decodable {
let id : Int
let descricao : String
let urlImagem : String
}
//Banner
struct BannerData : Decodable {
let data : [Banner]
}
struct Banner : Decodable {
let id : Int
let urlImagem : String
let linkUrl : String
}
//Top10
struct Top10Data:Decodable {
let data: [Top10]
}
struct Top10:Decodable {
let id : Int
let nome : String
let urlImagem : String
let descricao : String
let precoDe : Int
}
struct CategoriaIDItemsData:Decodable {
let data : [CategoriaIDItems]
}
struct CategoriaIDItems:Decodable {
let id : Int
let nome : String
let urlImagem : String
let descricao : String
let precoDe : Int
}
好吧，之后我继续进入主文件（ViewController），其中包含我的所有表格，例如UITableView和UICollectionview（所有类别都在哪里）。
import UIKit
class ViewController: UIViewController, UICollectionViewDataSource, UITableViewDataSource, UITableViewDelegate, UICollectionViewDelegate {
@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]()
var dataCategoriaID: [CategoriaIDItems] = [CategoriaIDItems]()
override func viewDidLoad() {
super.viewDidLoad()
//Delegate TableView
self.tableViewTopSell.delegate = self
//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()
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
var indexPathId: Int
if (collectionView == self.collectionView) {
let content = self.dataSource[indexPath.item]
indexPathId = content.id
}else if (collectionView == self.collectionViewBanner) {
let content = self.dataBanner[indexPath.item]
indexPathId = content.id
}
getCategoriaPorID(IdCategoria: indexPathId) { (data) in
self.dataCategoriaID = data
self.performSegue(withIdentifier: "segueCategorias", sender:self.dataCategoriaID)
print(self.dataCategoriaID)
}
}
//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.row]
cell.labelNomeTopSell.text = content.nome
cell.imageViewTopSell.setImage(url: content.urlImagem, placeholder: "")
cell.labelPrecoDe.text = "R$ \(content.precoDe)"
//Colocar strike em cima do Preco Antigo
let oldPrice = "R$ \(content.precoDe)"
let promotionString = oldPrice + ""
let attributedStr = NSMutableAttributedString(string: promotionString)
let crossAttr = [NSAttributedStringKey.strikethroughStyle: NSUnderlineStyle.styleSingle.rawValue]
attributedStr.addAttributes(crossAttr, range: NSMakeRange(0, oldPrice.count))
cell.labelPrecoDe.attributedText = attributedStr
//
cell.labelPrecoPor.text = "R$ 119.99"
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
performSegue(withIdentifier: "segueId", sender:self.dataTopSold[indexPath.row])
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "segueId" {
let des = segue.destination as? TelaDetalheProdutos
//.item possui uma propriedade instanciada na TelaDetalheProdutos
des?.item = (sender as? Top10)
//Segue para CollectionView Categorias
} else if segue.identifier == "segueCategorias" {
let desc = segue.destination as? TelaCategorias
desc?.item = (sender as? CategoriaIDItems)
}
}
}
//Cast UIImage Extension
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()
}
}
将接收数据的屏幕：
import UIKit
class TelaCategorias: UIViewController, UITableViewDataSource, UITableViewDelegate {
//Class Instanciated
var item:CategoriaIDItems?
var nome = String()
override func viewDidLoad() {
super.viewDidLoad()
????
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return ???
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "tableIDCategorias", for: indexPath) as! TelaCategoriasCell
????
return cell
}
}
应用图片：
答案 0 :(得分：0)
问题已成功解决。
已修复
