Map mp3 s in Documents directory and convert to AVPlayerItems

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?

2 Answers
2

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:

contentsOfDirectory(of: URL)

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)




The Bundle class has a method urls(forResourcesWithExtension:subdirectory:) That will return all the files in the bundle (or in a subdirectory of that bundle) with a given file extension. Use that to search for all files with the extension "mp3" and then iterate through them and create AVPlayerItems out of each one.

Bundle

urls(forResourcesWithExtension:subdirectory:)

AVPlayerItem

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