dagger android injector post main activity

MainActivity.kt

class MainActivity : AppCompatActivity(), View {

  @Inject lateinit var userAction: MainContract.UserAction

  override fun onCreate(savedInstanceState: Bundle?) {
    AndroidInjection.inject(this)
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)
    setSupportActionBar(toolbar)

    fab.setOnClickListener { view ->
      userAction.createTopic(this)
    }
  }

  override fun showClickText() {
    textView.setText("Fab was clicked")
  }
}