UITableView with Dropdown cell (like in Tweetbot)

This is an example application which shows how to do dropdown menu in UITableViewCell like it is done in Tweetbot. Written in Swift.

Goals

• When a user taps on cell, additional view in UITableViewCell containing buttons unfolds with animation under the cell. When a user taps it again, or taps on another cell - current cell should fold and new one unfolds.
• When a user has selected the cell and scroll the table - the selected cell should be persisted and correctly redrawed when user will scroll back to it.
• When a user unfolds a cell's dropdown menu and there are not enough space on the screen to fit it - the view should scroll to fit the entire cell with unfolded menu.

Technical Goals

• Autolayout
• As little as possible count of bicycles in the code :)

Result

Read more

Link to the article in my blog