When we set up to design the new Hot or Not version, our designers and developers came up with a really nice way to hint users that the photos they scroll horizontally, can be seen as a grid.

animated

We thought this is rarely done in iOS apps, so we would like to share it with the community. You can find the control here.

Technically, the component is very simple, but we set out to develop it’s internal logic in a TDD fashion, so what normally would be implemented as a single class, is actually split into 2, for testability purposes: A control and a driver.