Time spent: 13h
[x] User can view a list of movies from Rotten Tomatoes. Poster images must be loading asynchronously.[x] User can view movie details by tapping on a cell.
[x] User sees loading state while waiting for movies API. Use one of the 3rd party libraries at www.cocoacontrols.com/search?q=hud..
[x] User sees error message when there's a networking error. May not use UIAlertView or a 3rd party library to display the error.
[x] User can pull to refresh the movie list.
[x] For the larger poster, load the low-res first and switch to high-res when complete.[x] Customize the navigation bar.
[x] Add a tab bar for Box Office and DVD.
[x] Add a search bar: complete the search on tabview and on collection view. But it has error after click cell on search result.