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PONetwork communication in main UI thread
 

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    <p>I have following concern..</p> <p>My application downloads 6 MB of data when it is started for the first time. During that process <code>UIView</code> with information about ongoing download is presented, and generally there is no interaction with user.</p> <p>Because of that I do all downloading of data in main UI Thread, using <code>dispatch_async</code>, but now I don't know if this is the best solution and what will Apple say when I will submit my application.</p> <p>Could you please guide my if this is Ok or not ? </p> <p><strong>Update</strong><br> Dispatch code</p> <pre><code>//Called at the end of [UIViewController viewDidLoad] -(void)splashScreenAppeared { myTabBarController_.loadingLabel.text = NSLocalizedString(@"Checking for updates",@"launch progress"); dispatch_queue_t d_queue = dispatch_get_main_queue(); [self launchActionCheckIfDataIsStored:d_queue]; } //... -(void)launchActionCheckIfDataIsStored:(dispatch_queue_t)queue { dispatch_async(queue, ^ { //If there is no data stored in core data then download xml data files and images if (![self isAnyDataStoredInCoreData]) { launchNoDataStored_ = YES; [self launchDownloadData:queue]; } else { launchNoDataStored_ = NO; [self launchCheckNewVersion:queue]; } }); } //... -(void)launchDownloadData:(dispatch_queue_t)queue { myTabBarController_.loadingLabel.text = NSLocalizedString(@"Downloading catalog data",@"launch progress"); dispatch_async(queue, ^ { [self loadMenuData]; if (seriousError_) { [self launchSeriousError:queue]; return; } myTabBarController_.loadingLabel.text = NSLocalizedString(@"Downloading products details",@"launch progress"); dispatch_async(queue, ^ { [self loadProductsData]; if (seriousError_) { [self launchSeriousError:queue]; return; } //... //And so on with other parts of download } </code></pre>
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    1. COPost your dispatch code.
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    2. CO@DavidH added :)
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      1. USMichK
 

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