Check if NSString end with string

Question

I would like to check if my NSString end with @2x.png (case insensitive). How can I do that?

I have this code now, but it seems to ignore the @2x part.

    NSString *fileName = [_sourcePath lastPathComponent];
    [fileName stringByReplacingOccurrencesOfString:@"@2x" withString:@""];
    [fileName stringByReplacingOccurrencesOfString:@"@2X" withString:@""];
    NSLog(@"Filename: %@", fileName);

2012-01-01 21:00:55.600 NewApp[23930:707] Filename: [email protected]

Answer 1

Try something like this:

NSRange range = [fileName rangeOfString:@"@2x.png" options:NSCaseInsensitiveSearch];

if ( range.location != NSNotFound &&
     range.location + range.length == [fileName length] )
{
    NSLog(@"%@ ends with @2x.png",fileName);
}

ps. Note that you should assure that fileName is not nil before calling rangeOfString, since you're calling a method which does not return id. Calling a method on nil returns nil, which is not compatible with the NSRange type, and will lead to unexpected results.