CODEWITHSUNDEEP
kotlinviewmodelandroid-viewmodelkotlin-multiplatformcompose-multiplatform
Samuel Marks
Samuel Marks

Reputation: 1884

viewModel on Kotlin Multiplatform?

How do I import androidx.lifecycle.viewmodel.compose.viewModel on Kotlin Multiplatform (iOS, web, desktop, Android)?

Attempts:

[versions]
androidx-activityCompose = "1.10.0-alpha02"
androidx-compose-runtime = "1.8.0-alpha03"
androidx-lifecycle-viewmodel = "2.9.0-alpha04"
lifecycleViewmodel = "2.9.0-dev1873"

[libraries]
androidx-activity-compose = { module = "androidx.activity:activity-compose", version.ref = "androidx-activityCompose" }
androidx-lifecycle-viewmodel-compose = { module = "androidx.lifecycle:lifecycle-viewmodel-compose", version.ref = "androidx-lifecycle-viewmodel" }
androidx-runtime = { module = "androidx.compose.runtime:runtime", version.ref = "androidx-compose-runtime" }
jetbrains-lifecycle-viewmodel = { module = "org.jetbrains.androidx.lifecycle:lifecycle-viewmodel", version.ref = "lifecycleViewmodel" }
lifecycle-viewmodel = { module = "androidx.lifecycle:lifecycle-viewmodel", version.ref = "androidx-lifecycle-viewmodel" }

Then in kotlin.sourceSets.commonMain.dependencies of build.gradle:

runtimeOnly(libs.androidx.runtime)
runtimeOnly(libs.androidx.lifecycle.viewmodel.compose)
runtimeOnly(libs.lifecycle.viewmodel)
implementation(libs.jetbrains.lifecycle.viewmodel)

Unfortunately that doesn't work:

Unresolved reference: viewModel

Upvotes: 1

Views: 183

Answers (3)

Robert Jamison
Robert Jamison

Reputation: 299

All my projects use this import statement now, instead of the one you're using

import androidx.lifecycle.ViewModel

But I'm not even seeing the lifecycle dependency in my toml files anymore. Is it possible you are missing the compose compiler and JetBrains Compose plugins that automatically add it?

Toml file:

[plugins]
jetbrainsCompose = { id = "org.jetbrains.compose", version.ref = "compose-plugin" }
compose-compiler = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
kotlinMultiplatform = { id = "org.jetbrains.kotlin.multiplatform", version.ref = "kotlin" }
androidApplication = { id = "com.android.application", version.ref = "agp" }

Build.Gradle file:

plugins {
    alias(libs.plugins.kotlinMultiplatform)
    alias(libs.plugins.jetbrainsCompose)
    alias(libs.plugins.compose.compiler)
    alias(libs.plugins.androidApplication)
}

Sorry for any typos. Write this on my phone to avoid opening the laptop tonight.

Upvotes: 0

Samuel Marks
Samuel Marks

Reputation: 1884

Reusing lifecycleViewmodel = "2.9.0-dev1873", I was able to add:

lifecycle-viewmodel-compose = { module = 
                 "org.jetbrains.androidx.lifecycle:lifecycle-viewmodel-compose",
                                version.ref = "lifecycleViewmodel" }

(with implementation(libs.lifecycle.viewmodel.compose) in my kotlin.sourceSets.commonMain.dependencies)

Upvotes: 0

KomTraus87
KomTraus87

Reputation: 1

It looks like your dependency has an typo. "kotlin.sourceSets.ommonMain.dependencies" of build.gradle

Upvotes: -1

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