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feat: basic nav3

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This commit is contained in:
Cilly Leang 2026-01-23 21:24:53 +11:00
parent 2cb53ee962
commit 1b3b465112
Signed by: cilly
GPG key ID: 6500251E087653C9
8 changed files with 152 additions and 42 deletions
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6
composeApp/build.gradle.kts
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@ -3,6 +3,7 @@ import org.jetbrains.kotlin.gradle.dsl.JvmTarget
plugins {
alias(libs.plugins.kotlinMultiplatform)
alias(libs.plugins.kotlinSerialization)
alias(libs.plugins.androidApplication)
alias(libs.plugins.composeMultiplatform)
alias(libs.plugins.composeCompiler)
@ -34,6 +35,11 @@ kotlin {
implementation(libs.compose.uiToolingPreview)
implementation(libs.androidx.lifecycle.viewmodelCompose)
implementation(libs.androidx.lifecycle.runtimeCompose)
implementation(libs.androidx.lifecycle.viewmodel.nav3)
implementation(libs.androidx.nav3.ui)
implementation(libs.compose.material3.adaptive)
implementation(libs.compose.material3.adaptive.nav3)
}
commonTest.dependencies {
implementation(libs.kotlin.test)

1
composeApp/src/androidMain/kotlin/moe/lava/neon/MainActivity.kt
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@ -6,6 +6,7 @@ import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.runtime.Composable
import androidx.compose.ui.tooling.preview.Preview
import androidx.navigation3.ui.defaultPredictivePopTransitionSpec
import moe.lava.neon.ui.App
class MainActivity : ComponentActivity() {

88
composeApp/src/commonMain/kotlin/moe/lava/neon/ui/App.kt
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@ -1,48 +1,54 @@
package moe.lava.neon.ui
import androidx.compose.animation.AnimatedVisibility
import androidx.compose.foundation.Image
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.safeContentPadding
import androidx.compose.material3.Button
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Text
import androidx.compose.runtime.*
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.tooling.preview.Preview
import moe.lava.neon.resources.Res
import moe.lava.neon.resources.compose_multiplatform
import org.jetbrains.compose.resources.painterResource
import androidx.compose.runtime.Composable
import androidx.navigation3.runtime.NavKey
import androidx.navigation3.runtime.entryProvider
import androidx.navigation3.runtime.rememberNavBackStack
import androidx.navigation3.ui.NavDisplay
import androidx.savedstate.serialization.SavedStateConfiguration
import kotlinx.serialization.Serializable
import kotlinx.serialization.modules.SerializersModule
import kotlinx.serialization.modules.polymorphic
import moe.lava.neon.ui.screens.Login
import moe.lava.neon.ui.screens.Sample
@Composable
@Preview
fun App() {
MaterialTheme {
var showContent by remember { mutableStateOf(false) }
Column(
modifier = Modifier
.background(MaterialTheme.colorScheme.primaryContainer)
.safeContentPadding()
.fillMaxSize(),
horizontalAlignment = Alignment.CenterHorizontally,
) {
Button(onClick = { showContent = !showContent }) {
Text("Click me!")
}
AnimatedVisibility(showContent) {
val greeting = remember { Greeting().greet() }
Column(
modifier = Modifier.fillMaxWidth(),
horizontalAlignment = Alignment.CenterHorizontally,
) {
Image(painterResource(Res.drawable.compose_multiplatform), null)
Text("Compose: $greeting")
}
}
private object Route {
@Serializable
data object Login : NavKey
@Serializable
data class Sample(val token: String) : NavKey
}
private val config = SavedStateConfiguration {
serializersModule = SerializersModule {
polymorphic(NavKey::class) {
subclass(Route.Login::class, Route.Login.serializer())
subclass(Route.Sample::class, Route.Sample.serializer())
}
}
}
@Composable
fun App() {
MaterialTheme {
val backStack = rememberNavBackStack(config, Route.Login)
NavDisplay(
backStack = backStack,
onBack = { backStack.removeLastOrNull() },
entryProvider = entryProvider {
entry<Route.Login> {
Login(
onSuccess = { token ->
backStack.add(Route.Sample(token))
}
)
}
entry<Route.Sample> { key ->
Sample(key.token)
}
}
)
}
}

38
composeApp/src/commonMain/kotlin/moe/lava/neon/ui/screens/Login.kt Normal file
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@ -0,0 +1,38 @@
package moe.lava.neon.ui.screens
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.safeContentPadding
import androidx.compose.material3.Button
import androidx.compose.material3.OutlinedTextField
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import androidx.compose.ui.Modifier
@Composable
fun Login(
onSuccess: (token: String) -> Unit,
) {
Column(
modifier = Modifier
// .background(MaterialTheme.colorScheme.primaryContainer)
.safeContentPadding()
.fillMaxSize()
) {
Text("Login!")
var token by rememberSaveable { mutableStateOf("") }
OutlinedTextField(
value = token,
onValueChange = { token = it },
label = { Text("Enter token") },
)
Button(onClick = { onSuccess(token) }) {
Text("Submit")
}
}
}

50
composeApp/src/commonMain/kotlin/moe/lava/neon/ui/screens/Sample.kt Normal file
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@ -0,0 +1,50 @@
package moe.lava.neon.ui.screens
import androidx.compose.animation.AnimatedVisibility
import androidx.compose.foundation.Image
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.safeContentPadding
import androidx.compose.material3.Button
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import moe.lava.neon.resources.Res
import moe.lava.neon.resources.compose_multiplatform
import moe.lava.neon.ui.Greeting
import org.jetbrains.compose.resources.painterResource
@Composable
fun Sample(token: String) {
var showContent by remember { mutableStateOf(false) }
Column(
modifier = Modifier
.background(MaterialTheme.colorScheme.primaryContainer)
.safeContentPadding()
.fillMaxSize(),
horizontalAlignment = Alignment.CenterHorizontally,
) {
Button(onClick = { showContent = !showContent }) {
Text("Click me!")
}
AnimatedVisibility(showContent) {
val greeting = remember { Greeting().greet() }
Column(
modifier = Modifier.fillMaxWidth(),
horizontalAlignment = Alignment.CenterHorizontally,
) {
Image(painterResource(Res.drawable.compose_multiplatform), null)
Text("Compose: $greeting")
Text("Passed token: $token")
}
}
}
}