How to get the filename from the filepath in swift - ios

Question

How to get the filename from the given file path string?
For example if I have a filepath string as
file:///Users/DeveloperTeam/Library/Developer/CoreSimulator/Devices/F33222DF-D8F0-448B-A127-C5B03C64D0DC/data/Containers/Data/Application/5D0A6264-6007-4E69-A63B-D77868EA1807/tmp/trim.D152E6EA-D19D-4E3F-8110-6EACB2833CE3.MOV
and I would like to get the return result as
trim.D152E6EA-D19D-4E3F-8110-6EACB2833CE3.MOV

Answer 1

Objective C
NSString* theFileName = [string lastPathComponent]
Swift
let theFileName = (string as NSString).lastPathComponent

Answer 2

SWIFT 3.x or SWIFT 4:
Shortest and cleanest way of doing this is below. In this example url variable is type of URL in this way we can have a human readable String result of the full file name with extension like My file name.txt and Not like My%20file%20name.txt
// Result like: My file name.txt
let fileName = url.lastPathComponent

Answer 3

If you want to get the current file name such as for logging purposes, I use this.
Swift 4
URL(fileURLWithPath: #file).lastPathComponent

Answer 4

Swift 2:
var file_name = NSURL(fileURLWithPath: path_to_file).lastPathComponent!

Answer 5

let theURL = URL(string: "yourURL/somePDF.pdf") //use your URL
let fileNameWithExt = theURL?.lastPathComponent //somePDF.pdf
let fileNameLessExt = theURL?.deletingPathExtension().lastPathComponent //somePDF
In order for this to work your url must be of type URL not a string so don't convert it to a string before hand.
You can copy and paste this code directly into playground to see how it works.

Answer 6

Try this
let filename: String = "your file name"
let pathExtention = filename.pathExtension
let pathPrefix = filename.stringByDeletingPathExtension
Updated :
extension String {
var fileURL: URL {
return URL(fileURLWithPath: self)
}
var pathExtension: String {
return fileURL.pathExtension
}
var lastPathComponent: String {
return fileURL.lastPathComponent
}
}
Hope it helps.

Answer 7

Below code is working for me in Swift 4.X
let filename = (self.pdfURL as NSString).lastPathComponent // pdfURL is your file url
let fileExtention = (filename as NSString).pathExtension // get your file extension
let pathPrefix = (filename as NSString).deletingPathExtension // File name without extension
self.lblFileName.text = pathPrefix // Print name on Label

Answer 8

You can pass the url in fileUrl, like I did below:-
let fileUrl: String = "https://www.himgs.com/imagenes/hello/social/hello-fb-logo.png" // Pass the URL
let lastPathComponent = URL.init(string: fileUrl)?.lastPathComponent ?? "" // With this you will get last path component
let fileNameWithExtension = lastPathComponent
//This last path component will provide you file Name with extension.

Answer 9

I've done some performance tests (iOS 14, real device, release configuration):
(#file as NSString).lastPathComponent // The fastest option.
URL(string: #file)!.lastPathComponent // 2.5 times slower than NSString.
#file.components(separatedBy: "/").last! // 7 times slower than NSString.
Bonus:
URL(fileURLWithPath: #file, isDirectory: false).lastPathComponent // About the same as URL(string:).
URL(fileURLWithPath: #file).lastPathComponent // 2.5 times slower than with explicit isDirectory.

Answer 10

Swift 5. This one works faster than both URL and NSString options:
path.components(separatedBy: "/").last

Answer 11

To retrieve filename without its extension from a URL in Swift >= 4.2:
let urlWithoutFileExtension: URL = originalFileUrl.deletingPathExtension()
let fileNameWithoutExtension: String = urlWithoutFileExtension.lastPathComponent

Answer 12

Creates unique "file name" form url including two previous folders
func createFileNameFromURL (colorUrl: URL) -> String {
var arrayFolders = colorUrl.pathComponents
// -3 because last element from url is "file name" and 2 previous are folders on server
let indx = arrayFolders.count - 3
var fileName = ""
switch indx{
case 0...:
fileName = arrayFolders[indx] + arrayFolders[indx+1] + arrayFolders[indx+2]
case -1:
fileName = arrayFolders[indx+1] + arrayFolders[indx+2]
case -2:
fileName = arrayFolders[indx+2]
default:
break
}
return fileName
}