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POHow do I create a reusable Loading Screen?
 

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  1. POHow do I create a reusable Loading Screen?
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    <p>How do I create a loading screen that can be reused at any given time. I'm aware of the Default.png but I need the flexibility to plug in a loading screen at any point during the application life cycle.</p> <p>This is what I have thus far.</p> <pre><code>//inside a method that gets called by a UIButton LoadingViewController* loadController = [[LoadingViewController alloc] initWithNibName:@"Loading" bundle:nil vertical:NO]; [self.view addSubview: loadController.view]; //some method call that takes a few seconds to execute [self doSomething]; //This loads some other view, my final view [self.view addSubview: someOtherView] </code></pre> <p>but it seems that the loading view is never displayed. Instead the previous view stays there until the "someOtherView" gets added. I put trace logs and the code does seem to get executed, I even replaced [self doSomething] with a sleep(2), but the intermediate loading view is never displayed. </p> <p>If I remove [self.view addSubview:someOtherView]; then after a few seconds...(after doSomething finishes executing) the load view is displayed since there is no view that is pushed on top of it, however this is obviously not the functionality I want.</p> <p>Can explain this behavior? Is there something about the rendering cycle that I am misunderstanding because it doesn't seem like the view (on the screen at least) is instantly updated, even though I call a [self.view addSubview: loadController.view];</p> <p>Would I need to create a separate thread? </p>
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