Downloading file names from firebase storage - ios

Question

As i read in the documentation i can access single url in firebase storage like this:
`// Create a reference to the file you want to download
let starsRef = storageRef.child("images/stars.jpg")
// Fetch the download URL starsRef.downloadURL { url, error in
if let error = error {
// Handle any errors }
else {
// Get the download URL for 'images/stars.jpg'
} }`
However, i have many files there, so how can i skip giving direct path and instead iterate through all files in the given directory?
Thanks for tips.

Answer 1

DownloadURL takes single string at a time. In case you want to show all the files inside a folder to a tableview like me, here is the
full code:
import UIKit import Firebase
My very First View Controller-
class FolderList: UIViewController {
var folderList: [StorageReference]?
lazy var storage = Storage.storage()
#IBOutlet weak var tableView : UITableView!
override func viewDidLoad() {
super.viewDidLoad()
self.storage.reference().child("TestFolder").listAll(completion: {
(result,error) in
print("result is \(result)")
self.folderList = result.items
DispatchQueue.main.async {
self.tableView.reloadData()
}
})
} }
extension FolderList : UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return folderList?.count ?? 0
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
guard let cell = tableView.dequeueReusableCell(withIdentifier: "FolderListCell", for:
indexPath) as? FolderListCell else {return UITableViewCell()}
cell.itemName.text = folderList?[indexPath.row].name
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 64.0
} }
extension FolderList : UITableViewDelegate {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let storyBoard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
guard let downloadVC = storyBoard.instantiateViewController(withIdentifier:
"DownloadedItemView") as? DownloadedItemView else {
return
}
downloadVC.storageRef = folderList?[indexPath.row]
self.navigationController?.pushViewController(downloadVC, animated: true)
}
}
You each cell:
class FolderListCell: UITableViewCell {
#IBOutlet weak var itemName : UILabel!
}