从String转换为NSURL始终返回nil

Question

I am trying to fetch the path of an audio file that I have added to the main bundle of my app. When I print the path as String it prints normally.

But, when I try to print the NSURL of the same after converting it, returns a nil

let audioPath: String = NSBundle.mainBundle().pathForResource("Test", ofType: "mp3")!
    print(audioPath)

    let audioPathURL: NSURL? = NSURL(string: audioPath)
    print(audioPathURL)

Answer 1

An URL in the file system must be initialized with the method NSURL(fileURLWithPath:) not NSURL(string:) .

Or you use the URL based methods of NSBundle

Answer 2

您需要使用特定于filePath的初始化程序

let audioPathURL: NSURL? = NSURL(fileURLWithPath: audioPath)