Map mp3 s in Documents directory and convert to AVPlayerItems

Question

I am using this method to convert an mp3 in my main bundle path to an avplayer item:

let path = Bundle.main.path(forResource: "Baroon", ofType: "mp3")
let url = URL(fileURLWithPath: path!)
let asset = AVAsset(url: url)
let item = AVPlayerItem(asset: asset)

How can I convert every mp3 that exist in the Documents directory automatically?

Answer 1

You can use FileManager's contentsOfDirectory(of: URL) method to get all files in your documents directory and map the ones that contains the mp3 pathExtension:

let documents = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
do {
    let playesItems = try FileManager.default.contentsOfDirectory(at: documents, includingPropertiesForKeys: nil).compactMap {
        $0.pathExtension == "mp3" ? $0.asset.playerItem : nil
    }
    for item in playesItems {
        print(item.asset.duration)
    }
} catch { print(error) }

---

Don't forget to add those helpers to your project:

import UIKit
import AVKit

extension URL {
    var asset: AVAsset {
        return AVAsset(url: self)
    }
}
extension AVAsset {
    var playerItem: AVPlayerItem {
        return AVPlayerItem(asset: self)
    }
}