Launching into portrait-orientation from an iPhone 6 Plus home screen in landscape orientation results in wrong orientation

Question

The actual title for this question is longer than I can possibly fit:

Launching an app whose root view controller only supports portrait-orientation but which otherw

Answer 1

Please try the following code. Probably this problem caused by size of keywindow on landscape launch.

// in application:didFinishLaunchingWithOptions: ...

self.window.rootViewController = self.viewController;
[self.window makeKeyAndVisible];
[self.window setFrame:[[UIScreen mainScreen] bounds]]; //<- ADD!!