ios - Swift - How do I get the file path inside a folder

Question

I have a set of audio files inside a folder. I am able to access the file when the file is placed at main bundle, but if the files are moved inside the folder I am not able to access the files.

Code:

let audioFileName:String = "audioFiles/" + String(index)
let audioFile = NSBundle.mainBundle().pathForResource(audioFileName, ofType: "mp3")!

I have an audio file inside the folder audioFiles and I would want to get its path.

Error:

fatal error: unexpectedly found nil while unwrapping an Optional value

Answer 1

First make sure when you drag your folder audioFiles to your project to check copy items if needed and select create folder references. Make sure it shows a blue folder if your project.

Also NSBundle method pathForResource has an initialiser that you can specify in which directory your files are located:

let audioFileName = "audioName" 

if let audioFilePath = Bundle.main.path(forResource: audioFileName, ofType: "mp3", inDirectory: "audioFiles") {
    print(audioFilePath)
}

If you would like to get that file URL you can use NSBundle method URLForResource(withExtension:, subdirectory:)

if let audioFileURL = Bundle.main.url(forResource: audioFileName, withExtension: "mp3", subdirectory: "audioFiles") {
    print(audioFileURL)
}