问题
Currently, I am making an NSURLConnection whenever mySearchBar.text did change. I am experiencing an issue whereby if the user enters text too quickly, The respondData gets corrupted.
So, I was wondering is there a way to check whether the same NSURLConnection is still loading? If yes, How do I drop the current connection and start a new one?
回答1:
Add a property for that NSURLConnection and before starting new connection, do:
[self.conn cancel];
self.conn = nil;
回答2:
You could try to use asynchronous request. A good library for such call is ASIHTTPRequest.
set [request cancel]; whenever you need to make another new request.
来源：https://stackoverflow.com/questions/7229261/stop-current-nsurlconnection