This is a good question in fact and I am here today to give you some thoughts I think it will convince you to use DI. So DI creates your dependencies in someplace and returns your dependencies to you when you need them it is like magic. Now let us go back to our software Domain when we have class A that uses some methods form another class B so class A is a client and class B is a service. Let me give you an example form our real life when we say you rely on transportation means to reach to your work this means you are dependent on the transportation you need them and without transportation, you can not be able to go to your work so in this case you are a dependent (Client) and transportation is your dependency (Service). In the beginning, I need you to understand the dependency meaning before understanding DI. I know you may not understand this definition correctly so let me explain more in detail. A “dependency” is an object that can be used, for example as a service In software engineering, dependency injection is a technique whereby one object supplies the dependencies of another object. Intermediate level as Android DeveloperĬlone the Repo from Github What is Dependency Injection(DI).To be able to get most out of this tutorial you will need: After finishing this tutorial you will be able to understand the following

Because of the popularity of Kotlin as a new official language for developing Android Apps, I will use Kotlin in this tutorial so I hope you are familiar with it. GETTING STARTED TO DAGGER 2 WITH KOTLIN FOR ANDROID APP DEVELOPMENTĭagger is one of the most popular Dependency Injection Libraries for Java Programming Language and for Android App Development also.

Dagger kotlin