Kotlin Programming Cookbook

How to do it…

When you've defined all the dependency objects you need in the module class, you can get the component. Let's take look at the mentioned steps:

1. To inject the object, you just need to add the @Inject annotation before the variable, then the object will be injected there. Let’s look at the following example:

@Injectlateinit var mPresenter:AddActivityMvpPresenter

We have also used the lateinit modifier to void null checks before using the variable.

2. Another way to do it is by constructor injection. To understand it, let’s take a look at the given code:

@Moduleclass AddActivityModule {  @Provides @ControllerScope fun providesAddActivityPresenter(addActivityPresenter: AddActivityPresenter):AddActivityMvpPresenter =addActivityPresenter ...