How do I use MainActivity to trigger this MainViewModel to run?

# android

[Aiden]

How do I use MainActivity to trigger this MainViewModel to run?

[pawegio]

Do you mean constructor invocation? Did you instantiate it in MainActivity using e.g. ViewModelProviders factory?

[Lebohang]

On the MainActivity you will create a variable for your viewmodel e.g private lateinit var viewmodel within the onCreate() method you will instantiate the viewmodel in the following format viewmodel = ViewModelProviders.of(this, factory).get(MainViewModel::class.java) , factory represent the factory for you view model. But you can also do it the following way if you are using new android version: private val viewModel by viewModels<MainViewModel> { factory }