UIDeviceOrientationUnknown in landscape mode

I am trying to figure out what orientation the iphone has in the simulator and instead of giving it to me using the UIDevice orientation property I just get UIDeviceOrientationUnknown.

Does this property not work in the simulator? What could be the possi开发者_如何学编程ble reason for this happening?

I am using opengl es

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You can also use:

UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];  

which works even without calling beginGeneratingDeviceOrientationNotifications.

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first of all, from the documentation about orientation property of UIDevice instance

The value of this property always returns 0 unless orientation notifications have been enabled by calling beginGeneratingDeviceOrientationNotifications.

and yes, it will work only on the real device. but you can use, for example, this accelerometer simulator.