My app supports only iPhone, and the three default orientations (portrait, landscape left, landscape right).
I have a launch storyboard. If my iPhone 7 Plus is in landscape mode on the home screen when I launch my app, the storyboard appears in landscape mode. How do I tell iOS to always display the storyboard in portrait mode, as if the device were in portrait mode before the app was launched?
Please don't ask why I want this, or tell me it's a bad idea — there's context that would be a distraction to go into in this question.
