Question

Can anyone explain about delegate methods in TwitPic API and tell me the architecture of those delegate methods, I mean which method calls first,second like that.

In my code I have added TwitterRequest external classes and implemented. When I build my app I am getting message “No response from Delegate”. Anyone help me regarding this.

Thanks in advance.

Answer 1

From the code sample in the tutorial you followed, it looks like this message is logged when delegate you passed in doesn’t implement the callback selector you also passed in when you made the call to the TwitterRequest class.

For example, suppose we were making a request to update status:

TwitterRequest *request = [[TwitterRequest alloc] init];
[request statuses_update:@"My status" delegate:self requestSelector:@selector(didUpdateStatus)];

This code would log the message you’re seeing unless self implemented the callback didUpdateStatus. (Where self might be a view controller or similar.)

I would need to have implemented a method in my view controller something like this:

- (void)didUpdateStatus {
    NSLog(@"Updated status successfully");
}

Check that you’ve assigned and implemented such a method. Note that this looks to be optional – if you don’t want to know if your request succeeded you can either ignore this message, or implement an empty callback such as I have in this example.