compile 'com.google.dagger:dagger:2.11'
kapt 'com.google.dagger:dagger-compiler:2.11'
provided 'org.glassfish:javax.annotation:10.0-b28'
apply plugin: 'kotlin-kapt' (top of file)

class TempClass {}

@Module
class TempClassModule {
@Singleton
@Provides
fun provideTempClass() : TempClass = TempClass()
}

@Component (modules = arrayOf(TempClassModule::class))
interface TempClassComponent {
fun inject(mainActivity: MainActivity)
}

class MyApp : Application() {
companion object {
    lateinit var tempComponent : TempClassComponent
   }

override fun onCreate() {
    super.onCreate()
    prepareComponents()
   }

fun prepareComponents():Unit {
    tempComponent = DaggerTempClassComponent.builder().build()
   }
}

class MainActivity : AppCompatActivity() {

@Inject lateinit var tempClass : TempClass

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)
    MyApp.tempComponent.inject(this)

   }
}