downloading using NSURLConnection not downloading anything? - iphone

Question

i am using NSURLConnection to download mp3 data from the server , my code is here
- (IBAction)downloadData:(id)sender
{
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
NSURL *url = [[NSURL alloc] initWithString:#"http://viadj.viastreaming.net/start/psalmsmedia/ondemand/Nin%20snehamethrayo.mp3"];
[request setURL:url];
[url release];
url = nil;
NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
responseData = [[NSMutableData alloc] init];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[responseData appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
[responseData release];
[connection release];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSLog(#"Succeeded! Received %d bytes of data",[responseData
length]);
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *fileName = [[paths objectAtIndex:0] stringByAppendingPathComponent:#"myFile"];
[responseData writeToFile:fileName atomically:YES];
responseData = nil;
self->imageConnection = nil;
}
am little bit confused about the path given to download. when i click download button i shows "Succeeded! Received 1329 bytes of data" but nothing is downloading. need some help. how will we specify the local path of iPhone to store downloaded data?

Answer 1

- (IBAction)downloadData:(id)sender
{
NSURL *url = [[NSURL alloc] initWithString:#"http://viadj.viastreaming.net/start/psalmsmedia/ondemand/Nin%20snehamethrayo.mp3"];
NSMutableURLRequest *theRequest_to = [NSMutableURLRequest requestWithURL:url];
[url release];
NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:theRequest_to delegate:self];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse*)response
{
NSString *filepath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent:#"snehamethrayo.mp3"]; // here you can set your filename which you can get from url
[[NSFileManager defaultManager] createFileAtPath:filepath contents:nil attributes:nil];
file = [[NSFileHandle fileHandleForUpdatingAtPath:filepath] retain];// Here file is object of NSFileHandle and its declare in .h File
[file seekToEndOfFile];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[file seekToEndOfFile];
[file writeData:data];
}
- (void)connectionDidFinishLoading:(NSURLConnection*)connection
{
[file closeFile];
}

Answer 2

No need for any code change I think.Just put an nslog and see...
NSString *fileName = [[paths objectAtIndex:0] stringByAppendingPathComponent:#"myFile"];
NSLog(#"%#",fileName);
That will list the file location like this
/Users/me/Library/Application Support/iPhone Simulator/5.0/Applications/(your app)/Documents/myFile. ie the downloaded file is in your document folder.
note: don't forget to put the file format ie
NSString *fileName = [[paths objectAtIndex:0] stringByAppendingPathComponent:#"myFile.mp3"];