function to get the file name of an URL

Question

I have some source code to get the file name of an url

for example:

http://www.google.com/a.pdf

I hope to get a.pdf

because the way to join 2 NSS

Answer 1

Try this:

Edit: from blow comment

NSString *url = @"http://www.google.com/a.pdf";
NSArray *parts = [url componentsSeparatedByString:@"/"];
NSString *filename = [parts lastObject];

Answer 2

Swift 3

Let's say that your url is http://www.google.com/a.pdf

    let filename = url.lastPathComponent

    \\filename = "a.pdf"

Answer 3

I haven't tried this yet, but it seems like you might be trying to do this the hard way. The iPhone libraries have the NSURL class, and I imagine that you could simply do:

NSString *url = [NSURL URLWithString:@"http://www.google.com/a.pdf"];
NSString *path = [url path];

Definitely look for a built in function. The libraries have far more testing and will handle the edge cases better than anything you or I will write in an hour or two (generally speaking).

Answer 4

I think if you have already had the NSURL object, there is lastPathComponent method available from the iOS 4 onwards.

NSURL *url = [NSURL URLWithString:@"http://www.google.com/a.pdf"];
NSString *filename = [url lastPathComponent];

Answer 5

This is more error free and meant for getting the localized name in the URL.

NSString *localizedName = nil;
[url getResourceValue:&localizedName forKey:NSURLLocalizedNameKey error:NULL];

Answer 6

The following line does the job if url is a NSString:

NSString *filename = [url lastPathComponent];

If url is a NSURL, then the following does the job:

NSString *filename = [[url path] lastPathComponent];