问题
I got my json link data from TableViewCell , and then retrieve that data from server and display in collectionView with related TableViewCell data. How to display this data in swift3? Please, help me.
I got url link (mainThemeList.main_associated_url,main_name) from TableViewCell.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let mainThemeList = mainHomeThemeTable[(indexPath as NSIndexPath).row]
let cell = tableView.dequeueReusableCell(withIdentifier: "homecell") as! HomeCategoryRowCell
DispatchQueue.main.async {
cell.categoryTitle.text = mainThemeList.main_name
cell.mainAssociatedURL.text = mainThemeList.main_associated_url
self.prefs.set(mainThemeList.main_name, forKey: "main_name")
cell.categoryTitle.font = UIFont.boldSystemFont(ofSize: 17.0)
cell.collectionView.reloadData()
}
DispatchQueue.main.async {
self.retrieveDataFromServer(associated_url: mainThemeList.main_associated_url,main_name: mainThemeList.main_name)
}
return cell
}
And then data related url link data from Server.
private func retrieveDataFromServe(associated_url : String , main_name: String) {
SwiftLoading().showLoading()
if Reachability().isInternetAvailable() == true {
self.rest.auth(auth: prefs.value(forKey: "access_token") as! String!)
rest.get(url: StringResource().mainURL + associated_url , parma: [ "show_min": "true" ], finished: {(result : NSDictionary, status : Int) -> Void in
self.assetsTable.removeAll()
if(status == 200){
let data = result["data"] as! NSArray
if (data.count>0){
for item in 0...(data.count) - 1 {
let themes : AnyObject = data[item] as AnyObject
let created = themes["created"] as! String
let assets_id = themes["id"] as! Int
let name = themes["name"] as! String
var poster_img_url = themes["poster_image_url"] as! String
let provider_id = themes["provider_id"] as! Int
poster_img_url = StringResource().posterURL + poster_img_url
self.assetsTable.append(AssetsTableItem(main_name: main_name,created: created,assets_id: assets_id, name: name, poster_image_url: poster_img_url,provider_id: provider_id))
}
}
SwiftLoading().hideLoading()
}else{
SwiftLoading().hideLoading()
}
})
}
}
Retrieve data from Server data store in assetsTable.
And then assetsTable data display in CollectionViewCell.
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "videoCell", for: indexPath) as! HomeVideoCell
cell.movieTitle.text = list.name
cell.imageView.image = list.image
return cell
}
My problem is collectionViewCell data are duplicate with previous assetsTable data and didn't show correct data in CollectionView.
My tableViewCell show (Action, Drama) label and My CollectionViewCell show movies Name and Movie Image. I retrieve data for CollectionViewCell from server but CollectionViewCell didn't display related data.
回答1:
in HomeVideoCell Subclass clean up data in prepareforreuse
override func prepareForReuse() {
super.prepareForReuse()
self.movieTitle.text = ""
self.imageView.image = nil
}
来源：https://stackoverflow.com/questions/44650058/how-to-display-dynamically-data-from-server-in-collectionviewcell-in-tableviewce