I’ve noticed when starting apps on the iPhone, they first appear as small windows gradually getting bigger and bigger, until filling the entire screen. These small windows look like the applications. However, when running my applications on my iPhone, the zooming windows are always black. Why is that?
I’ve noticed when starting apps on the iPhone, they first appear as small windows
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You can add a picture to your project, name it Default.png, with the dimensions 320×480, and that will cause it to show when you start up the application.
http://iosdevelopertips.com/cocoa/defaultpng-the-secret-of-the-load-screen.html