mrmojtabaa

class mainActivity {
}

mrmojtabaa

dependencies {
    .
    .
    implementation "com.google.dagger:dagger-android:2.16"
    .
}

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class myApplication : Application(), HasActivityInjector {
    @Inject
    lateinit var activityInjector: DispatchingAndroidInjector<Activity>
    
    override fun onCreate() {
        super.onCreate()
        
    }
    
    override fun activityInjector(): AndroidInjector<Activity> {

mrmojtabaa

@Component(
    modules = [
        ActivitiesModule::class
    ]
)
interface AppComponent {
    fun inject(myApplication: MyApplication)
}

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@Module
abstract class ActivitiesModule {
    @ContributesAndroidInjector
    abstract fun contributeMainActivity(): MainActivity
}

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class MainActivity : AppCompatActivity() {

    @Inject
    lateinit var viewModel: MainActivityViewModel

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

mrmojtabaa

class MainActivityViewModel @Inject constructor() {

    var someData = "MyString"

}

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class myApplication : Application(), HasActivityInjector {
    @Inject
    lateinit var activityInjector: DispatchingAndroidInjector<Activity>
    
    override fun onCreate() {
        super.onCreate()
        
        var appComponent = DaggerAppComponent.create()
        appComponent.inject(this)
    }

mrmojtabaa

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

apply plugin: 'kotlin-kapt' // Kotlin Annotation processing tool

android {
    compileSdkVersion 28