Append NSString to NSURL?

Question

I have an NSURL, a file path, and I want to add an NSString to the end of it (the file name) how can I do this? But after this is don't I want the entire thing to be an NSURL.

Thanks.

score 111 · Answer 1 · edited Oct 16 '15 at 21:16

111

I think it's good solution:

NSURL *bUrl = [aUrl URLByAppendingPathComponent:@"newString"];

In Swift you could do the following,

var bURL = aURL.URLByAppendingPathComponent( "newString" )

You can also state whether the URL is a directory,

var bURL = aURL.URLByAppendingPathComponent( "newString", isDirectory: true )

edited Oct 16 '15 at 21:16

cjohnson318

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answered Nov 04 '11 at 10:19

lyzkov

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Note this does url encoding of the path component string – amleszk May 31 '12 at 14:03
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This also prepends a slash before the string. – Rudolf Adamkovič Jan 18 '14 at 15:38
In Swift 3, Xcode 8.2.1, this is now: `appendingPathComponent(_:)`. [Docs.](https://developer.apple.com/reference/foundation/nsurl/1410614-appendingpathcomponent) – Todd Feb 02 '17 at 09:17

score 8 · Accepted Answer · answered Mar 14 '11 at 19:29

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I think it's as simple as:

    NSString *s = [aUrl.path stringByAppendingString:@"newString"];

answered Mar 14 '11 at 19:29

Andy Milburn

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If you use this, to get an NSURL in the end, you will have to do this: `[NSURL URLWithString:[aUrl.path stringByAppendingString:@"newString"]]` – Myxtic Jul 31 '14 at 04:58

Jim Luther · Answer 3 · 2016-12-10T17:48:05.713

If you have a file NSURL to a directory and you want to end up with a NSString containing the NSURL's path with a file name appended to it, use this:

NSURL *url = [NSURL fileURLWithPath:@"/System" isDirectory:YES];
NSString *filename = @"foo";
NSString *result = [url.path stringByAppendingPathComponent:filename];

You can also use URLByAppendingPathComponent but that adds an extra step which creates an extra NSURL object that isn't needed.

NSURL *url = [NSURL fileURLWithPath:@"/System" isDirectory:YES];
NSString *filename = @"foo";
NSURL *newURL = [url URLByAppendingPathComponent:filename];
NSString *result = newURL.path;

Append NSString to NSURL?

3 Answers3