Get Imagename from Url in swift - ios

Question

I have this url https://storage.googleapis.com/user_avatars/63/img_-qLgH80SBqNhMRYbDQeccg.jpg
I need only qLgH80SBqNhMRYbDQeccg image name from this link In ui Image

Answer 1

You can use NSURL to safely isolate the filename then use substring to get the part you want.
let s = "https://storage.googleapis.com/user_avatars/63/img_-qLgH80SBqNhMRYbDQeccg.jpg"
Swift 2
if let url = NSURL(string: s),
withoutExt = url.URLByDeletingPathExtension,
name = withoutExt.lastPathComponent {
let result = name.substringFromIndex(name.startIndex.advancedBy(5))
print(result)
}
Swift 3
if let url = URL(string: s),
withoutExt = try? url.deletingPathExtension(),
name = withoutExt.lastPathComponent {
let result = name.substring(from: name.index(name.startIndex, offsetBy: 5))
print(result)
}
Swift 4
if let url = URL(string: s) {
let withoutExt = url.deletingPathExtension()
let name = withoutExt.lastPathComponent
let result = name.substring(from: name.index(name.startIndex, offsetBy: 5))
print(result)
}
Prints:
qLgH80SBqNhMRYbDQeccg

Answer 2

What about something that uses NSURLComponents to break up the URL:
func parseURLForFileName(url:String) ->String?
{
let components = NSURLComponents(string: url)
if let path:NSString = components?.path
{
let filename = path.lastPathComponent
if let range = filename.rangeOfString("_-")
{
return filename.substringFromIndex(range.endIndex)
}
}
return nil
}
You would then call it like this:
let name = parseURLForFileName("https://storage.googleapis.com/user_avatars/63/img_-qLgH80SBqNhMRYbDQeccg.jpg")
print(name)