iPhone simulator only shows a black screen after launching the app

Question

Hi

I am moving my 3.x app to use iOS4 features like background processing, fast-app switching. I have been able to get the app running fine. But now whenever I launch the app on the simulator, it just shows a black screen. The app launches, status in XCode changes to running but nothing shows up other than the black screen.

The app runs fine on a device so I know there's nothing wrong with the code. Any idea what could be happening? I have tried reinstalling the SDK but it did not make a difference.

And yes, I have the [window makeKeyAndVisible]; line in the code. So that is not the issue. I am using application:didFinishLaunchingWithOptions: to handle the app launch.

Thanks.

Answer 1

Some features do not work in the simulator, I know that when you try to access the iPod library in your app the simulator will just hang like this (it was this way back in 3.1 at least). Make sure you aren't using a feature that the simulator doesn't support.