nsurl

I have to access a web server using a GET with international characters (Hebrew in my case but could be anything). So I make an NSString just fine but [NSURL URLWithString:urlString]; // returns nil. I realize I probably have to convert the international characters to percent codes. Is there a built in method in Objective-c to do so? Yes there is, you need -stringByAddingPercentEscapesUsingEncoding: method: [NSURL URLWithString:[string stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; This would ensure NSURL *url does not return nil because of the "|" in the urlString .

Can someone confirm that -checkResourceIsReachableAndReturnError: method of NSURL is working as expected. I have tried using it for known URLs and it is always returning NO . I am using XCode's iPhone Simulator 4.1. Thank you. According to NSURL Class Reference Returns whether the resource pointed to by a file URL can be reached. ... Discussion This method is unimplemented in iOS, so it performs no operation So it only works for file URLs (which your URL probably isn't) and it only works on Mac OS X anyway. You can use this method: - (BOOL) validateUrl: (NSString *) url { NSString *theURL = @"

I recently had a problem when comparing two NSURLs and compare one NSURL with an NSString(which is a URL address), the situation is I got an NSURLRequest from somewhere, I may or may not know the URL address it points to, and I have an URL NSString, say "http://m.google.com", now I need to check if the URL in that NSURLRequest is the same as the URL string I had: [[request.URL.absoluteString lowercaseString] isEqualToString: [self.myAddress lowercaseString]]; this returns NO as the absoluteString gives me "http://m.google.com/" whereas my string is "http://m.google.com" without a slash in the

Snow Leopard introduced many new methods to use NSURL objects to refer to files, not pathnames or Core Services' FSRefs. However, there's one task I can't find a URL-based method for: Testing whether a file exists. I'm looking for a URL-based version of -[NSFileManager fileExistsAtPath: ] . Like that method, it should return YES if the URL describes anything, whether it's a regular file, a directory, or anything else. I could attempt to look up various resource values , but none of them are explicitly guaranteed to not exist if the file doesn't, and some of them (e.g., NSURLEffectiveIconKey )