CODEWITHSUNDEEP
androidandroid-jetpackandroid-viewmodelandroid-architecture-components
AndrazP
AndrazP

Reputation: 297

Android ViewModel - how to force recreation on certain configuration changes

ViewModel's purpose is to retain data on life cycle events and configuration changes.

But for certain configuration changes, like locale change, I would like to get a fresh instance of viewModel. How can I force recreation?

class HomeActivity : AppCompatActivity() {

    var viewModelFactory: ViewModelProvider.Factory

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        // How to get new instance on locale change?
        var viewModel = ViewModelProviders.of(this, viewModelFactory)
        .get(HomeViewModel::class.java)
    }
}

Upvotes: 7

Views: 2380

Answers (1)

AndrazP
AndrazP

Reputation: 297

Answering my own question :)

I had the chance to speak with Yigit Boyar (lead for Architecture Components) on Google I/O 2019.
He confirmed it's intentionally not possible to force recreation on ViewModel. The right solution is to observe changes and act on them.

Upvotes: 8

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