I'm developing a universal iOS app that only supports portrait and upside-down interface orientations. When supplying the launch images in Xcode, I see that I have warnings for landscape orientations, even having only portrait and upside down enabled in device orientations settings. Does this mean that I need to supply landscape launch images anyway? I don't find this clear in Apple's documentation.
Thanks
No. These are warnings. Apple would prefer you support all orientations on iPad, and recommend you do, but they do not require it. (Yet)