Auto rotate in iOS7 and iOS8 - ios

Question

I am developing an application which is in portrait mode.
But I want one view controller should display in landscape as well as in portrait mode.
I tried the following code but it doesn't work (not called).
- (BOOL) shouldAutorotate
{
return NO;
}
- (BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
return UIInterfaceOrientationMaskPortrait;
}

Answer 1

First, you need to set in your plist all the orientations your app supports, this can be done in the 'General' tab in the project under "Deployment Info", for example:
Then, you can use the method supportedInterfaceOrientations,
I assume you are presenting the view controller modally, so simply override it, on the presenting viewController, which need to be only in portrait use:
- (NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskPortrait;
}
and in your presented viewController, which should also supports landscape, use: (or whatever orientation mask you would like)
- (NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskAllButUpsideDown;
}
P.S - there is a different behavior for viewController that is presented modally and for a viewController that push in a navigationController stack:
modalViewController will call its own supportedInterfaceOrientations, and will support these orientations
pushedViewController will call its navigationController supportedInterfaceOrientations, and will support these orientation.
So, if you are presenting the viewController modally, you need to override its own supportedInterfaceOrientations, but if you push this viewController, you need to set some BOOL property in the navigationController, so it will know which orientations to supports.
I advise you to present this viewController modally, it's more natural to use modalViewController for different device orientations.
P.S #2: about shouldAutorotate: if it returns 'NO', than supportedInterfaceOrientations is not called, so return 'YES'. It only says, if to rotate automatically when the device rotates. if it returns 'NO', you need to explicit rotate the viewController.
Well I hope I helped and didn't write an answer that is completely not regarded to what you asked... :)