startBatch method

Syntax

Parameters

• None –

  // instantiate the shared network queue
  NetworkQueue* networkQueue = [NetworkQueue queue];
  // set various delegates and selectors
  // subscribe for download progress notifications
  [networkQueue setDownloadProgressDelegate:self]; 
  // for accurate progress tracking
  [networkQueue setShowAccurateProgress:YES];
  // register ourselves as delegate
  [networkQueue setDelegate:self];
  [networkQueue setRequestDidFailSelector:(downloadFailed:)];
  [networkQueue setRequestDidFinishSelector:(downloadFinished:)];
  [networkQueue setQueueDidFinishSelector:(queueFinished:)];     //there is no queueFailed selector: the queue is always finished even if some or all the belonging requests fail
  // create and add the requests (internally an NSOperationQueue is used to store and concurrently handle the requests)
  // Request#1
  Request* request = [Request requestWithUrl:[NSURL URLWithString:"http://www.yahoo.com"]];
  [networkQueue addOperation:request];

Remarks

// start the queue (all operations are on hold when added)
[networkQueue startBatch];