Playing songs downloaded into the cache directory - swift

Question

Downloading an mp3 and saving it into the Library/caches folder works, But accessing it later doesn't.
Checking if the song really exists, i opened up Finder and went to the simulator folders. and my folder looks like this:
My song is located at: Library/Caches/Digger/Flower.mp3
Trying to access this using AVPlayer:
let folderName = "Digger"
let fileName = "Flower.mp3"
let url = FileManager.default
.urls(for: .cachesDirectory, in: .userDomainMask)[0]
.appendingPathComponent(folderName).appendingPathComponent(fileName)
var urlString = url.absoluteString
print("MyPath: \(urlString)")
urlString.removeSubrange(urlString.range(of: "file://")!)
let player = AVPlayer(url: URL(string: urlString)!)
let playerViewController = AVPlayerViewController()
playerViewController.player = player
self.present(playerViewController, animated: true) {
player.play()
}
But it doesn't work.
Simulator screenshot upon runtime:

Answer 1

Your URL handling is incorrect.
Replace these lines:
var urlString = url.absoluteString
print("MyPath: \(urlString)")
urlString.removeSubrange(urlString.range(of: "file://")!)
let player = AVPlayer(url: URL(string: urlString)!)
with:
let player = AVPlayer(url: url)
url already is the URL that you need. No need to try to convert it in any way.
For reference, use url.path to convert a file URL into a path string. And if you need to create a URL from a path string, use URL(fileURLWithPath:), not URL(string:). Only use URL(string:) with a string that has a URL scheme such as file://, https://, etc.