setNeedsStatusBarAppearanceUpdate unrecognized selector

Question

I had an issue with my iOS phonegap app having the status bar overlap the webview in iOS 7. I found this answer which fixed the problem, but the second step, calling

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Answer 1

Turns out it is unnecessary to add [self setNeedsStatusBarAppearanceUpdate]; and the app ran fine in iOS 6 and iOS 7.