How to check in which position (landscape or portrait) is the iPhone now?

Question

I have an app with a tab bar, and nav controllers in each tab. When user shakes the device, a UIImageView appears as a child view in the nav controller. But the

Answer 1

To addon to the already answered question:

You use [[UIDevice currentDevice] orientation] which will yield one of these values:

typedef enum {
   UIDeviceOrientationUnknown,
   UIDeviceOrientationPortrait,
   UIDeviceOrientationPortraitUpsideDown,
   UIDeviceOrientationLandscapeLeft,
   UIDeviceOrientationLandscapeRight,
   UIDeviceOrientationFaceUp,
   UIDeviceOrientationFaceDown
} UIDeviceOrientation;

The documentation can be found here - (orientation) and here - (UIDeviceOrientation).

(I don't mean to claim the former anwser, but this information was to big for a comment.)