Testing iOS 6 apps on device running iOS7

Question

I have an iPhone 4s. I receive iOS 7 update in my phone. So the question is: can I run iOS 6 apps from Xcode on my iOS 7 device?

NOTE: I haven\'t go

Answer 1

  if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
        self.edgesForExtendedLayout = UIRectEdgeNone; 

// iOS 7(x)