Dependency injection is a simple programming technique with a bit of a scary name, but it turns out that it’s excellent for highlighting the connections between classes within an app. Ben walks Jelly through the basics of using dependency injection, why singletons are bad, and places you might already be using this techique without even knowing it.

• ButterKnife (Dependency Injection Library for Android)
• Dagger (Dependency Injection Library for Android)
• Allow distinguishing between public access and public overridability (swift-evolution on GitHub)
• Mantle (GitHub)
• mogenerator (GitHub)

We'd love it if you got in touch! We are @_mobilecouch on Twitter and you can even email us at [email protected], if you're so inclined!