How to identify WHICH NSURLConnection did finish loading when there are multiple ones?

Question

Multiple NSURLConnections being started (in a single UIViewController) to gather different kinds of data. When they return (-connectionDidFinishLoading) I wanna do stuff wit

Answer 1

You keep pointers to both connections in the delegate, and compare these to the connection parameter in connection:didReceiveData: and connectiondidFinishLoading:

For example:

@interface Foo : NSObject {
    NSURLConnection *connection1;
    NSURLConnection *connection2;
}

and

connection1 = [NSURLConnection connectionWithRequest:request1 delegate:self];
connection2 = [NSURLConnection connectionWithRequest:request2 delegate:self];

and

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
    if(connection == connection1) {
        // Connection 1
    } else if(connection == connection2) {
        // Connection 2
    }
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
    if(connection == connection1) {
        // Connection 1
    } else if(connection == connection2) {
        // Connection 2
    }
}