DubDub17

A sample project based on the WWDC App for learning Coordinator and Model View ViewModel (MVVM) design patterns in iOS and Swift 3.

Solving a Problem

'Massive View Controllers' are a thing. An elegant and testable way to avoid this is using the coordinator pattern.

Core Concepts

• A coordinator is way to lift a number of tasks up and outside of a view controller.
• View controllers should know nothing about their parent or sibling view controllers.
• Each view controller manages the views inside in a trivial manner.
• When a view controller has distinct states, it switches on them using an enum.
• A view controller (when appropriate) provides a delegate so a coordinator can react to the steps in a given workflow, while still keeping the view controller in the dark.

Designing the App

This app is based on the awesome WWDC app that Apple updates each year.

• Services like Videos, Schedule, News, and Venue are all represented in the app as coordinators.
• If there are smaller workflows (e.g. providing feedback, picking a photo) their may be child coordiantors.
• Each coordinator has a single start() method.

Learning Apple Frameworks

This is a great example for working with a complex data set, calendars, video, and location services all in one place.

Todo List

This is a work in progress. Trying to make it happen by the end of WWDC week!

• Setting Up Tabbed Interface
  • App Coordinator
  • Managing Tabbed Interface
• Modeling Our Data
  • Videos
  • Session
  • Announcement
  • Account
• Videos Tab
  • Listing Videos
  • Switching View Controllers between All and Featured
    • Featured Videos View Controller
      • Grid Layout using Table and Collection Views
    • All Videos View Controller
      • List Layout using Table and Collection Views
      • Filtering Videos based on Track, Year, etc.
      • Searching Videos based on Title, Description
  • Viewing Details of a Video
    • Playing a Video
    • Marking a Video as a Favorite
    • Providing Feedback on a Video
• Schedule Tab
  • Listing Sessions
  • Switching View Controllers between and