Day071 — Dependency Injection

Dependency Injection is a concept easy to understand, but really difficult to get the head around with the implementation of Dagger. I am overwhelmed by the number of annotations I needed to use in multiple interface and class. Therefore, after reading many resources online, I created a learning path for other beginners to follow. Below listed with the ones I consider the best. I read below article and video more than three times.

Dependency Injection Made Simple

The first 15 min gives you a very clear introduction of what is dependency injection and why we need it. The remaining part of the video goes to the implementation detail of Dagger 1, which I am not interested in.

Dependency Injection Made Simple

Dagger 2 for Android Beginners — Introduction

It is a great tutorial for a beginner. Read it before anything else.

Dagger 2 for Android Beginners — Introduction

Dagger 2 Tutorial by CodingInFlow

It is a great series. I watched the whole playlist(1.5x — 2x speed).

Dependency Injection with Dagger 2

It is a good tutorial on DI.

Dependency Injection with Dagger 2 | CodePath Android Cliffnotes

The Future of Dependency Injection with Dagger 2 by Jake Wharton

Finally, revision yourself with below video. (I watch it with 1.5x speed)

And of course,

Dagger 2 by Gregory Kick

Some other useful resources:

Google官方MVP+Dagger2架构详解【从零开始搭建android框架系列（6）】

Introduction to Dagger 2, Using Dependency Injection in Android: Part 1

Dagger2 Android Tutorial - 'Cause You're Stuck

Using Dagger 2 for dependency injection in Android - Tutorial

7 steps to implement Dagger 2 in Android

Intermediate resources:

Dagger 2 on Android: The Simple Way

Dagger 2 on Android: The Official Guidelines You Should Be Following

Why and how you should switch to Dagger 2.12+?