Does anyone know of any samples using navigation compose spe

Question

Does anyone know of any samples using navigation compose specifically the passing and receiving of arguments The current <https github com androidx androidx blob androidx master dev navigation navigation compose samples src main java androidx navigation compose samples NavigationSamples kt|samples> don t use arguments

Ian Lake · Answer

There s more in the demos <https github com androidx androidx blob androidx master dev navigation navigation compose integration tests navigation demos src main java androidx navigation compose demos NavWithArgsDemo kt|https github com androidx androidx blob androidx master dev navigation navigation compose integration tests navigation demos src main java androidx navigation compose demos NavWithArgsDemo kt>

pourpre · Answer

Thanks for the link String manipulation does not seem like a particularly Kotlin thing to do I was hoping for something that took advantage of the arguments parameter in composable eg `composable route=MY ROUTE arguments = listOf ` `navArgument arg1 ` `defaultValue = DEFAULT ` `nullable = true` ` backStackEntry gt MyRouteComposable args=backStackEntry arguments ` and `navController navigate route=MY ROUTE args=bundleOf arg1 to param1 `

Ian Lake · Answer

As per the docs <https developer android com jetpack compose navigation nav with args> and previous discussions here this isn t how routing works in Navigation Compose Just like a web URL the arguments are part of the route part of the very definition of where you are going

Ian Lake · Answer

So `profile profileId ` is a route to a specific profile

Ian Lake · Answer

The testing part of that same doc explains how you should be removing any navigation code from your actual composable itself Instead pass parsed type safe arguments into your composable and type safe on click listeners that you then transform into navigate calls

pourpre · Answer

Cheers for that I was focusing so much on the source code I forgot about the online docs Is it my imagination or is the documentation about optional arguments wrong ```composable profile userId= userId arguments = listOf navArgument userId defaultValue = me backStackEntry gt Profile navController backStackEntry arguments getString userId ``` Shouldn t this be the route name with no arguments ```composable profile arguments = listOf navArgument userId defaultValue = me backStackEntry gt Profile navController backStackEntry arguments getString userId ```

Ian Lake · Answer

you still need to pass all arguments via the route optional or not