How lock screen in iOS for it to have only portrait orientation?

Question

I have created an app with many views and I want to have some of them only in portrait orientation. I have coded this in .m file:

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    return NO;
}

Do I need to do something else? May be in .h file?

Answer 1

Cleanest solution for me:

Go to Info.plist file and for the "Supported interface orientations", remove every value except "Portrait (bottom home button)".