LoginActivity.kt

class LoginActivity : DaggerAppCompatActivity() {

    @Inject lateinit var sessionManager: SessionManager

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_login)
        Timber.d("sessionManager = $sessionManager")

        goMain.setOnClickListener {
            sessionManager.loginUser()
            startActivity(Intent(this, MainActivity::class.java))
        }
    }
}