iphone download text file

self.fileManager = [NSFileManager defaultManager];
NSArray *filePaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
self.documentsDirectory = [filePaths objectAtIndex: 0];
[self.fileManager changeCurrentDirectoryPath:self.documentsDirectory];

NSLog(@"The documents directory is: %@", self.documentsDirectory);

NSURL* completeURL = [[NSURL alloc]initWithString:@"http://www.mydomain.com/full/path/of/file.txt"];
 
NSMutableURLRequest* request =[NSMutableURLRequest requestWithURL:completeURL]; 
[[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:YES];

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data

 // get the Resource path name
 NSString *dir = [[NSBundle mainBundle] resourcePath]; 
 // get an array with all .txt files in the bundle
 NSArray *files = [NSBundle pathsForResourcesOfType:@"txt" inDirectory:dir]; 
 for (NSString *fileName in files) // loop over array
 {
 // do whatever you want with the file named "filename"
 }

+ (id)stringWithContentsOfFile:(NSString *)path encoding:(NSStringEncoding)enc error:(NSError **)error

+ (id)stringWithContentsOfURL:(NSURL *)url encoding:(NSStringEncoding)enc error:(NSError **)error