How to implement a slide down setting view in a sidebar view, jut like Gmail on iOS <p>I am searching for a easy or good way to implement a slide down setting view in sidebar view, just like what Gmail did on iOS. If you click the small down arrow on Gmail's side bar view, it will show a setting view with animation down to the bottom.</p> <p>I am using SWRevealViewController for side bar implementation.</p> <p>Want hear from you masters how to start implement it especially based on SWRevealViewController</p>