Very Intermittent Orientation on Device & Simulator

Question

I've noticed that I'm getting very intermittent orientation on my device & the simulator.

I have a modal view controller that I present, and that is the only thing in my app which supports rotation.

If I launch the app in portrait without moving the device, open the modal VC and then rotate the device, it usually works. However sometimes if I open the app holding the device in landscape, then rotate to portrait, launch the VC and then rotate the device, no rotation occurs. It seems very intermittent. Sometimes if I launch the app in portrait mode and then open the VC and rotate the device, nothing happens, and until I quit and relaunch it no orientation occurs in the app.

It's strange because 50% of the time it works! Whenever I launch it through Xcode and set breakpoints in shouldAutorotateToInterfaceOrientation it always works!

Anyone ever had this or know what's going on?

Answer 1

Since as you mentioned "intermittent", i would say it has something to do with what are you doing after the rotation.

To find the bug, i suggest removing any code after the rotation happens. Comment out any network activities or OpenGL operations. Could also help to close XCode and reopen it.

If nothing helps, i would make a new project and start moving the files one by one and test.