A modern programming language that makes developers happier.

kotlinlang

It took me ages to find this ‘documentation’ on custom `NavType` in Jetpack Navigation.

You shouldn’t have to lean on this too often, as it’s not considered good practice to pass structured data via navigation arguments if you’re using route-based navigation. Instead, it’s better to pass an identifier for your data, and then go and retrieve it from your repository - if you can.

But, if your data isn’t uniquely-identifiable, or it only really exists at the UI layer, then there are times when it can be useful to serialize your structured data and pass it around. That’s where custom `NavType` comes in handy - and there’s a little explanation of how to do it, buried in this guide to the navigation DSL:

<https://developer.android.com/guide/navigation/navigation-kotlin-dsl#custom-types>

It might be a shameless plug, but very recently I made a tutorial about it.
<https://www.youtube.com/watch?v=MeTbydjEc90>
You can check it out if you want.