Using the new nav3 dev builds in a Compose Multiplatform project, and migrating a custom backstack w...

# multiplatform

[galex]

Using the new nav3 dev builds in a Compose Multiplatform project, and migrating a custom backstack with its own saver (to survive process death on Android), what is the equivalent of saving something parcelable (for typed routes) ?

[skominas.ainis]

Is Nav3 even supporting KMP?

[galex]

it started to, this last week

[galex]

Settings.gradle.kts:

dependencyResolutionManagement {
    repositories {
        //(...)
        maven { url = URI.create("<https://maven.pkg.jetbrains.space/public/p/compose/dev>") }
    }
}

libs.version.toml:

[versions]
navigation3 = "1.0.0+dev2849"

[libraries]
androidx-navigation3-runtime = { module = "org.jetbrains.androidx.navigation3:navigation3-runtime", version.ref = "navigation3" }
androidx-navigation3-ui = { module = "org.jetbrains.androidx.navigation3:navigation3-ui", version.ref = "navigation3" }

[bundles]
nav3 = [
    "androidx-navigation3-runtime",
    "androidx-navigation3-ui"
]

In your composeApp build.gradle.kts:

commonMain.dependencies {

    implementation(libs.bundles.nav3)
}

Enjoy 😊

[skominas.ainis]

Niiice, thanks! Had in my todo to try nav3 on Android, will do it on CMP too:)

[efemoney]

My rec would be to use kotlinx-serialization.

[galex]

@אליהו הדס What do you mean, just serialize and deserialize into a string manually?

[skominas.ainis]

I think KMP SavedState recently migrated in 1.8.2 does that under the hood already

[galex]

oh, so I can just transform that list into a list of strings, interesting, I'll try that

[galex]

Coz I couldn't find anything receiving Any or T

[skominas.ainis]

That's my guess, I still need to try out Nav3 too and see what are the limitations and whatnot:) Report your findings, would be nice to hear too~

[Jaypalsinh Barad]

I have one question, is there any documentation or GitHub repo to track the latest version of this library?

[skominas.ainis]

Release changes: https://developer.android.com/jetpack/androidx/releases/navigation3#1.0.0-alpha08
Examples: https://github.com/android/nav3-recipes
Docs: https://developer.android.com/guide/navigation/navigation-3

And if you are really curious about development, you can use cs.android.com

[Jaypalsinh Barad]

Is androidx.navigation3:navigation3 and org.jetbrains.androidx.navigation3 are the same?

I don't think it will be the same version for both libraries.

[skominas.ainis]

• androidx - Android-only
• org.jetbrains - KMP-compatible

[galex]

This new talk released yesterday answers to my question 😊

[galex]

https://www.youtube.com/watch?v=jDz_yNZkEzk▾