iphone - NSOperation for drawing UI while parsing data? -

Hope you guys can help me :)

In the main thread, I have a NS operation I am in a queue that this operation connects to the data server with the NSRR connection, saves the data received and parses it.

Operation.M

  - (zero) start {NSLog (@ "operaion for and left;% @ activation"), [CMD Description]); [Will Will Changewellfall: @ "Exerting"]; _isExecuting = yes; [AUTO KEYCHENGEVALFORICI: @ "Expreting"]; NSMutableURLRequest * Request = [NSMutableURL request url with url: _url]; [Set http system: @ "post"]; [Request Set Value: [NSString stringWithFormat: @ "Multipart / Form-Data; limit =% @", MBO and more] forHTTPHeaderField: @ "Content-Type"]; [Request set http: bb: _page]; _connection = [[NSUK connection alloc] InitvuthRequest: Request Rep: Auto]; If (_connection == zero) [self finishes]; }  

Then in this NSURL delegation method I parse the data I just received from the server.

Operation.m

- (zero) connectionDifffish: Loading: (NSUrCon Connection *) Connection {[Self Pars Itims]; }

In the data, for example, I can get items such as screenittum, cellitum, textitem, which I send to portray them during the main thread.

Using this to send the item to the main thread:

Operation.M

/ Strong >

[Auto_readScreen]] break;; case cell: {[auto_seed: [auto_readcell]]; breakdown; // ... many different items}}} - (zero) _send: (citem *) _ Item {[NSNation Centers Default Center] PostNotificationName: @ "New Eatam" Object: _Item];}

then in the notification receiver:

AppDelegate.m

  - (zero) _newItemArrived: (nsnification *) notification { Self-demonstration detectorOnMineTrade: @Sylector (Process Input :) with Object: [Notification Object] WaitingTone: No];}  

My problem is that the UI has not been portrayed until the end of the noopartition I thought that NSOPRIATION would not block the main thread having a different thread, but Wish Believe what is happening.

Some suggestions for this issue?

Thanks a lot for reading!

Are you using NSOperationQueue ?

Check Questions for a simple example of how to update the UI with information from asynchronous running NS operations on any other thread. > NSURL connection supports asynchronous connection with itself with a delegate. You should use it if you have specific problems, you should describe them.

Check the library.

If you really want to use this approach, you can try running NSURLConnection synchronously, class method). The connection is on a background thread because your app will remain liable though, you will not be able to update anything until you receive all the data.