Compose UIBarButtonItem changes position slightly when coming into view

Question

When presenting a new view with a UIBarButtonSystemItemCompose button in the navigation bar, the position is slightly off and adjusts after the view has come into view.

Answer 1

Yes, this is IOS8 bug.

It happens because jumping not a navigation bar item position, its jumping image position inside compose item. This item type seems hasn't override for push animation or something similar, as for example back button.

I think you should create bug on radar and for fix your current trouble, just create custom UIBarButtonItem with the same image.