create DatabaseService and NetworkService when onCreate method called

MyApplication.kt

class MyApplication : Application() {
    var networkService: NetworkService? = null
    var databaseService: DatabaseService? = null
    override fun onCreate() {
        super.onCreate()
        networkService = NetworkService(this, "SOME_API_KEY")
        databaseService = DatabaseService(this, "dummy_db", 1)
    }
}