我在将数据解析到具有自定义单元格的uicollectionview的详细viewcontroller时出现问题，但我使用相同的数据处理了uitableview。
以下是我的代码的segue部分准备：
override func prepare(for segue: UIStoryboardSegue, sender: Any?){
if segue.identifier == "movetodetail" {
if let indexPath = topTableView.indexPathForSelectedRow{
let selectedRow = indexPath.row
let detailVC = segue.destination as! DetailedFirstMainViewController
detailVC.topImage = self.QponsArray[selectedRow].offer_image2_loc
detailVC.topTitletxt = self.QponsArray[selectedRow].offer_title
detailVC.topProfileIMG = self.QponsArray[selectedRow].offer_image_loc
detailVC.topDes = self.QponsArray[selectedRow].offer_desc
detailVC.offerStart = self.QponsArray[selectedRow].offer_start
detailVC.offerEnd = self.QponsArray[selectedRow].offer_end
}
else if segue.identifier == "movetodetail1" {
guard let cell = sender as? TopCollectionViewCell else {
return
}
guard let indexPath1 = topCollectionView.indexPath(for: cell) else {
return
}
let detailVC1 = segue.destination as! DetailedFirstMainViewController
detailVC1.topImage = QponsArray[indexPath1.row].offer_image2_loc
detailVC1.topTitletxt = self.QponsArray[indexPath1.row].offer_title
detailVC1.topProfileIMG = self.QponsArray[indexPath1.row].offer_image_loc
detailVC1.topDes = self.QponsArray[indexPath1.row].offer_desc
detailVC1.offerStart = self.QponsArray[indexPath1.row].offer_start
detailVC1.offerEnd = self.QponsArray[indexPath1.row].offer_end
}
没有发送任何内容，详细视图对所有属性重新调整为零。我确实质疑这是否是Optionals的一个问题但是我没有得出任何结论或者可以找到任何问题，但我已经碰壁了。
我们非常感谢所需的任何帮助或示例。
以下是此视图的完整代码：
import UIKit
import SwiftyJSON
import SDWebImage
import CenteredCollectionView
struct Qpons {
let offer_id: Int
let offer_title: String
let offer_image_loc: String
let offer_image2_loc: String
let offer_start: String
let offer_end: String
let company_id: Int
let address_id: Int
let user_id: Int
let offer_type: String
let offer_desc: String
let address_line1: String
let address_line2: String
let address_town: String
let address_county: String
let address_postcode: String
let address_type: String
let address_long: Double
let address_lat: Double
let address_payments_cash: Int
let address_payments_cheque: Int
let address_payments_contactless: Int
let address_payments_visa: Int
let address_payments_mastercard: Int
let address_payments_maestro: Int
let address_payments_americanexpress: Int
let address_payments_jcb: Int
let address_payments_dinersclub: Int
let company_legal_name: String
let company_trading_name: String
let company_type: String
let company_vat: String
let company_reg_no: String
let company_logo_loc: String
let company_website: String
let company_facebook: String
let company_twitter: String
let company_instagram: String
var cat_name: String
let sub_cat_name: String
}
class FirstMainViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, UICollectionViewDelegate, UICollectionViewDataSource {
@IBOutlet weak var dateLbl: UILabel!
@IBOutlet weak var topCollectionView: UICollectionView!
@IBOutlet weak var topTableView: UITableView!
var QponsArray: [Qpons] = []
final let url = URL(string: "http://***/test-site/app_calls/getalloffers.php")
override func viewDidLoad() {
super.viewDidLoad()
downloadJson()
let dateformatter = DateFormatter()
dateformatter.dateFormat = "EEEE MMMM dd, yyyy"
let now = dateformatter.string(from: NSDate() as Date)
dateLbl.text = now
topTableView.register(UINib(nibName: "TopTableViewCell", bundle: nil), forCellReuseIdentifier: "topCell")
let nibName = UINib(nibName: "TopCollectionViewCell", bundle:nil)
topCollectionView.register(nibName, forCellWithReuseIdentifier: "topCCell")
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func downloadJson() {
guard let downloadURL = url else { return }
URLSession.shared.dataTask(with: downloadURL) { data, urlResponse, error in
guard let data = data, error == nil, urlResponse != nil else {
print("something is wrong")
return
}
print("downloaded")
do
{
let jsonArray = try JSON(data: data)
for (index, dict) in jsonArray {
let thisObject = Qpons(
offer_id: dict["offer_id"].intValue,
offer_title: dict["offer_title"].stringValue,
offer_image_loc: dict["offer_image_loc"].stringValue,
offer_image2_loc: dict["offer_image2_loc"].stringValue,
offer_start: dict["offer_start"].stringValue,
offer_end: dict["offer_end"].stringValue,
company_id: dict["company_id"].intValue,
address_id: dict["address_id"].intValue,
user_id: dict["user_id"].intValue,
offer_type: dict["offer_type"].stringValue,
offer_desc: dict["offer_desc"].stringValue,
address_line1: dict["address_line1"].stringValue,
address_line2: dict["address_line2"].stringValue,
address_town: dict["address_town"].stringValue,
address_county: dict["address_country"].stringValue,
address_postcode: dict["address_postcode"].stringValue,
address_type: dict["address_type"].stringValue,
address_long: dict["address_long"].doubleValue,
address_lat: dict["address_lat"].doubleValue,
address_payments_cash: dict["address_payments_cash"].intValue,
address_payments_cheque: dict["address_payments_cheque"].intValue,
address_payments_contactless: dict["address_payments_contactless"].intValue,
address_payments_visa: dict["address_payments_visa"].intValue,
address_payments_mastercard: dict["address_payments_mastercard"].intValue,
address_payments_maestro: dict["address_payments_maestro"].intValue,
address_payments_americanexpress: dict["address_payments_americanexpress"].intValue,
address_payments_jcb: dict["address_payments_jcb"].intValue,
address_payments_dinersclub: dict["address_payments_dinersclub"].intValue,
company_legal_name: dict["company_legal_name"].stringValue,
company_trading_name: dict["company_trading_name"].stringValue,
company_type: dict["company_type"].stringValue,
company_vat: dict["company_vat"].stringValue,
company_reg_no: dict["company_reg_no"].stringValue,
company_logo_loc: dict["company_logo_loc"].stringValue,
company_website: dict["company_website"].stringValue,
company_facebook: dict["company_facebook"].stringValue,
company_twitter: dict["company_twitter"].stringValue,
company_instagram: dict["company_instgram"].stringValue,
cat_name: dict["cat_name"].stringValue,
sub_cat_name: dict["sub_cat_name"].stringValue
)
self.QponsArray.append(thisObject)
}
// let offers = json["offer_title"].string
// print(offers)
print(self.QponsArray)
DispatchQueue.main.async {
self.topTableView.reloadData()
self.topCollectionView.reloadData()
}
} catch {
print("something wrong after downloaded")
}
}.resume()
}
public func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) ->
UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "topCCell", for: indexPath) as! TopCollectionViewCell
let qponImage = QponsArray[indexPath.row].offer_image_loc
cell.qponImage.sd_setImage(with: URL(string: "http://****/test-site/images/qpon_logos/\(qponImage)"), placeholderImage: UIImage(named: "placeholder.png"))
return (cell)
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return self.QponsArray.count
}
public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return self.QponsArray.count
}
public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
let cell = tableView.dequeueReusableCell(withIdentifier: "topCell", for: indexPath) as! TopTableViewCell
let qponImage = QponsArray[indexPath.row].offer_image_loc
cell.qponImage.sd_setImage(with: URL(string: "http://****/test-site/images/qpon_logos/\(qponImage)"), placeholderImage: UIImage(named: "placeholder.png"))
cell.qponTitle.text = QponsArray[indexPath.row].offer_title
cell.qponDes.text = QponsArray[indexPath.row].offer_desc
cell.selectionStyle = .none
return (cell)
}
public func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
self.performSegue(withIdentifier: "movetodetail", sender: indexPath)
}
public func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
self.performSegue(withIdentifier: "movetodetail1", sender: indexPath)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?){
if segue.identifier == "movetodetail" {
if let indexPath = topTableView.indexPathForSelectedRow{
let selectedRow = indexPath.row
let detailVC = segue.destination as! DetailedFirstMainViewController
detailVC.topImage = self.QponsArray[selectedRow].offer_image2_loc
detailVC.topTitletxt = self.QponsArray[selectedRow].offer_title
detailVC.topProfileIMG = self.QponsArray[selectedRow].offer_image_loc
detailVC.topDes = self.QponsArray[selectedRow].offer_desc
detailVC.offerStart = self.QponsArray[selectedRow].offer_start
detailVC.offerEnd = self.QponsArray[selectedRow].offer_end
}
else if segue.identifier == "movetodetail1" {
guard let cell = sender as? TopCollectionViewCell else {
return
}
guard let indexPath1 = topCollectionView.indexPath(for: cell) else {
return
}
let detailVC1 = segue.destination as! DetailedFirstMainViewController
detailVC1.topImage = QponsArray[indexPath1.row].offer_image2_loc
detailVC1.topTitletxt = self.QponsArray[indexPath1.row].offer_title
detailVC1.topProfileIMG = self.QponsArray[indexPath1.row].offer_image_loc
detailVC1.topDes = self.QponsArray[indexPath1.row].offer_desc
detailVC1.offerStart = self.QponsArray[indexPath1.row].offer_start
detailVC1.offerEnd = self.QponsArray[indexPath1.row].offer_end
}
}
}
}
添加数据的详细视图如下：
class DetailedFirstMainViewController: UIViewController {
@IBOutlet weak var topCover: UIImageView!
@IBOutlet weak var topTitle: UILabel!
@IBOutlet weak var topProfile: UIImageView!
@IBOutlet weak var textDes: UILabel!
@IBOutlet weak var offerstartLB: UILabel!
@IBOutlet weak var offerendLB: UILabel!
@IBOutlet weak var line2: UIView!
@IBOutlet weak var line1: UIView!
var topImage: String = ""
var topTitletxt: String = ""
var topProfileIMG: String = ""
var topDes: String = ""
var offerStart: String = ""
var offerEnd: String = ""