How to get the iPhone view's current orientation or the device's last orientation?

In my app an image appears when user shakes the device. There are different images for landscape and portrait 开发者_C百科mode. If the iPhone's orientation is portrait or landscape, it works fine. But if it is UIDeviceOrientationFaceDown or UIDeviceOrientationFaceUp, the image should depend on the last orientation used, because the view is still displayed for this orientation.

How can I get the last orientation of the device?

I've figured it out! I had to check the status bar's orientation!

[UIApplication sharedApplication].statusBarOrientation

Well in the shouldAutoRotate method of a class it passes in a parameter called interfaceOrientation. This method is called anytime the device orientation changes. You can store this as a variable and the look at it at a later time to determine the last orientation.

 1 = standard portrait
 2 = upsidedown
 3 = button right landscape
 4 = button left landscape. 

Also the call of self.interfaceOrientation will give you the current device orientation.

Hope this at least get you started in the correct direction.