iPad : Unable to implement variants of Portrait Orientation

I need to implement both variants of my Portrait orientation in iPad app.

I am using the code shown below to implement both Portrait and PortraitUpsideDown orientations.

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation ==  UIInterfaceOrientationPortrai开发者_JS百科t || interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown);
}

But orientation does not change when Orientation is PortraitUpsideDown.

What could be wrong?

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Got it working.

Added both the variants of Portrait Orientations to Supported Interface Orientation to my info.plist for my app.

This has worked for me.

Hope this helps everyone.

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you could use

return UIDeviceOrientationIsPortrait(interfaceOrientation)

which is just a macro for what you're trying to get.I'm not sure both will work on simulator.