Value of optional type 'String?' not unwrapped; did you mean to use '!' or '?'?

Question

I define a class in Swift like that:

class RecordedAudio: NSObject {
    var title: String!
    var filePathUrl: NSURL!

    init(title: String, filePathUrl: NSU         


        

Answer 1

lastPathComponent returns an optional String:

but your RecordedAudio seems to require String not String?. There are two easy ways to fix it:

Add ! in case you are sure lastPathComponent will never return nil

recordedAudio = RecordedAudio(title: recorder.url.lastPathComponent!, filePathUrl: recorder.url)

or

Use a default title in case lastPathComponent is nil

recordedAudio = RecordedAudio(title: recorder.url.lastPathComponent ?? "Default title", filePathUrl: recorder.url)