According to other threads on this subject, when you select ‘Universal’ from the Target Devices drop down menu, it should create a Resource-iPad folder. Alternately, I read that you can duplicate an existing target with an option to transition to iPad or to transition to Universal.
However, neither of these behaviors occurs for me. I can set it as Universal, but since there is still only one target, how do you separate which resources are for the iPhone version and which are for iPad?
Additionally, how do you separate where the launch images and app icons go for each version?
To make matters worse, I decided to delete and re-add the target, and then try the transition over. But now none of my resources or classes allow me to attach to this new target at all, so I can’t even run the project.
UPDATE: I created a new project and moved all my classes and resources into it, made the target universal and at least it is running on both. However, it is not clear to me how to have the app load one image file resource for iphone and a different one for iPad. The Apple documentation says to append “-iphone” to a file name for resources that are for iphone runtime, but this is not proving to be successful.
I’m in the process of Universal-izing an app, and since you mention the Simulator:
iPads (and iPhones) file systems are case-sensitive. So you need to use “MyImage~ipad.png” and not “MyImage~iPad.png” (which was my first inclination).
Other than that, it’s all nicely automatic. Most if not all resources (.xibs, .pngs, etc.) load iPad specific versions with no code changes.