stringByRemovingPercentEncoding resulting in null string-CodePudding

I've got a file path /Users/alexandra/Downloads/folder with spaces/ and I want to remove the percent encoding and make it a file URL. Using the method stringByRemovingPercentEncoding makes the string null.

The documentation says "A new string with the percent-encoded sequences removed, or nil if the receiver contains an invalid percent-encoding sequence.", but I don't see for a space being wrong?

CodePudding user response：

You didn't show us your non-working code in Objective-C, but this works fine on my machine (in Swift):

if let path = "/Users/alexandra/Downloads/folder with spaces/".removingPercentEncoding {
    let url = URL(fileURLWithPath: path)
    print(url) // file:///Users/alexandra/Downloads/folder with spaces/
}

On the other hand, since you've already wrongly acquired percent encoding in a string pathname, why not just stick file:// in front of it and be done with it?

let path = "/Users/alexandra/Downloads/folder with spaces/"
if let url = URL(string: "file://"   path) {
    print(url)
}