Default.png shows when applicationWillEnterForeground and using handleOpenURL

I'm implementing an iOS application with the Facebook SDK which switches to the Safari browser for authentication and then back to the app using application:handleOpenURL:. The authentication works just fine, but when it switches back to my app, it shows the Default.png screen again for a beat. I'm not understanding why it's showing this since the application reports that it is entering the background and then back to the foreground and didFinishLaunchingWithOptions is only called when the app first starts. How can I get a seamless transition back to my app without showing the Default.png screen a开发者_如何学运维gain?

I also ran into this problem recently, and figured out a workaround. Read how I solved it here:

iPhone App in suspended state, launched by URL, showing Default.png

The summary is, if your exit point to Facebook is fairly predictable, create a Default-scheme.png (eg. Default-fb12345.png) screenshot.