Hi, thanks for the feedback. Actually I have read the blog post by Sarunw before I write the article, I don’t see any relationship between the animation glitches and the bar appearance. Correct me if I am wrong, but base on my understanding iOS should be smart enough to offset the content so that it won’t be covered by the navigation bar. Would be great if you could elaborate more on how you solve the problem by adjusting the bar appearance. Thanks.