This project comes from my frustration with iOS trying to find a way to have completely different layouts between portrait and landscape and between iPhone and iPad.
So this is the way I handle rotating the screen in iOS. I wanted to stick to Interface Builder for the layout of my views as I can handle them out to a designer and let him rearrange the content as he likes. At the same time I wanted to reduce the code which is dependant on the orientation to a minimum.
As you will see, the concepts behind the courtains are simple:
- Everything is cointained in an UINavigationController that has the toolbar hidden.
- On application startup, we attach either the iPad or iPhone portrait UIViewController depending on the device.
- When orientation changes to landscape, we push the correct landscape UIViewController on the stack.
- When orientation goes back to portrait, we pop the landscape UIViewController from the stack.
On top of those basic principles there are a few issues that we have to handle:
- What if we have a modal controller on top of our portrait/landscape controller? We can't just push and pop if we rotate the device as we will close the modal as well.
- How should we set the autoresizing masks for the elements in our different controllers?
- Can we use a base class to handle all of the common IBOutlets?
All of this is covered in the code of the project.
I hope this can save you some time as it really took me some effort to come up with a satisfying solution. I'm not saying that this is the best, but it certainly fits my needs.
Author: Valerio Santinelli <tanis2000@hotmail.com>
Copyright (c) 2011 Valerio Santinelli.
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