How can I upload/download data from a server in Cocoa Touch. Here's what I have so far...
-(void)uploadSchedule:(id)sender
{
NSData *content = [NSData dataWithContentsOfFile:self.dataFilePath];
NSString *stuff = [[NSString alloc] initWithData:content encoding:NSASCIIStringEncoding];
NSURL *url = [NSURL URLWithString:@"http://thetis.lunarmania.com"];
NSMutableURLRequest* urlRequest = [[NSMutableURLRequest alloc]initWithURL:url];
[urlRequest setHTTPMethod:@"POST"];
[urlRequest setHTTPBody:[stuff dataUsingEncoding:NSASCIIStringEncoding]];
NSLog(@"great success!");
}
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
// this method is called when the server has determined that it
// has enough information to create the NSURLResponse
// it can be called multiple times, for example in the case of a
// redirect, so each time we reset the data.
// receivedData is declared as a method instance elsewhere
[receivedData setLength:0];
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
// append the new data to the receivedData
// receivedData is declared as a method instance elsewhere
[receivedData appendData:data];
}
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
// release the connection, and the data object
[connection release];
// receivedData is declared as a method instance elsewhere
[receivedData release];
// inform the user
NSLog(@"Connection failed! Error - %@ %@",
[error localizedDescription],
[[error userInfo] objectForKey:NSErrorFailingURLStringKey]);
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
// do something with the data
UIImage *image = [[UIImage alloc] initWithData:receivedData];
[cat setImage:image];
[image release];
// receivedData is declared as a method instance elsewhere
NSLog(@"Succeeded! Received %d bytes of data",[receivedData length]);
// release the connection, and the data object
[connection release];
[receivedData release];
}
-(void)connection:(NSURLConnection *)connection
didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
{
if ([challenge previousFailureCount] == 0) {
NSURLCredential *newCredential;
newCredential=[NSURLCredential credentialWithUser:@"[email protected]"
password:@"icanican"
persistence:NSURLCredentialPersistenceNone];
[[challenge sender] useCredential:newCredential
forAuthenticationChallenge:challenge];
} else {
[[challenge sender] cancelAuthenticationChallenge:challenge];
// inform the user that the user name and password
// in the preferences are incorrect
//[self showPreferencesCredentialsAreIncorrectPanel:self];
}
}
I'm so lost...