Merge branch 'main' into firebase-ktx

.github/dependabot.yml

@@ -0,0 +1,25 @@
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "gradle"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    registries: "*"
+    labels: [ "version update" ]
+    groups:
+      kotlin-ksp-compose:
+        patterns:
+          - "org.jetbrains.kotlin:*"
+          - "org.jetbrains.kotlin.jvm"
+          - "com.google.devtools.ksp"
+          - "androidx.compose.compiler:compiler"
+registries:
+  maven-google:
+    type: "maven-repository"
+    url: "https://maven.google.com"
+    replaces-base: true

.github/renovate.json

@@ -1,16 +0,0 @@
-{
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "config:base", "group:all", ":dependencyDashboard", "schedule:daily"
-  ],
-  "packageRules": [
-    {
-      "matchPackageNames": ["org.objenesis:objenesis"],
-      "allowedVersions": "<=2.6"
-    },
-    {
-      "matchPackageNames": ["com.google.protobuf"],
-      "allowedVersions": "<=0.8.19"
-    }
-  ]
-}

.github/workflows/Build.yaml

@@ -39,6 +39,9 @@ jobs:
       - name: Setup Gradle
         uses: gradle/gradle-build-action@v2
 
+      - name: Check build-logic
+        run: ./gradlew check -p build-logic
+
       - name: Check spotless
         run: ./gradlew spotlessCheck --init-script gradle/init.gradle.kts --no-configuration-cache
 

app-nia-catalog/build.gradle.kts

@@ -69,3 +69,7 @@ dependencies {
     implementation(projects.core.ui)
     implementation(libs.androidx.activity.compose)
 }
+
+dependencyGuard {
+    configuration("releaseRuntimeClasspath")
+}

app-nia-catalog/dependencies/releaseRuntimeClasspath.txt

@@ -0,0 +1,167 @@
+androidx.activity:activity-compose:1.8.0
+androidx.activity:activity-ktx:1.8.0
+androidx.activity:activity:1.8.0
+androidx.annotation:annotation-experimental:1.3.0
+androidx.annotation:annotation-jvm:1.6.0
+androidx.annotation:annotation:1.6.0
+androidx.appcompat:appcompat-resources:1.6.1
+androidx.arch.core:core-common:2.2.0
+androidx.arch.core:core-runtime:2.2.0
+androidx.autofill:autofill:1.0.0
+androidx.browser:browser:1.6.0
+androidx.collection:collection:1.2.0
+androidx.compose.animation:animation-android:1.5.4
+androidx.compose.animation:animation-core-android:1.5.4
+androidx.compose.animation:animation-core:1.5.4
+androidx.compose.animation:animation:1.5.4
+androidx.compose.foundation:foundation-android:1.5.4
+androidx.compose.foundation:foundation-layout-android:1.5.4
+androidx.compose.foundation:foundation-layout:1.5.4
+androidx.compose.foundation:foundation:1.5.4
+androidx.compose.material3:material3:1.1.2
+androidx.compose.material:material-icons-core-android:1.5.4
+androidx.compose.material:material-icons-core:1.5.4
+androidx.compose.material:material-icons-extended-android:1.5.4
+androidx.compose.material:material-icons-extended:1.5.4
+androidx.compose.material:material-ripple-android:1.5.4
+androidx.compose.material:material-ripple:1.5.4
+androidx.compose.runtime:runtime-android:1.5.4
+androidx.compose.runtime:runtime-livedata:1.5.4
+androidx.compose.runtime:runtime-saveable-android:1.5.4
+androidx.compose.runtime:runtime-saveable:1.5.4
+androidx.compose.runtime:runtime:1.5.4
+androidx.compose.ui:ui-android:1.5.4
+androidx.compose.ui:ui-geometry-android:1.5.4
+androidx.compose.ui:ui-geometry:1.5.4
+androidx.compose.ui:ui-graphics-android:1.5.4
+androidx.compose.ui:ui-graphics:1.5.4
+androidx.compose.ui:ui-text-android:1.5.4
+androidx.compose.ui:ui-text:1.5.4
+androidx.compose.ui:ui-tooling-preview-android:1.5.4
+androidx.compose.ui:ui-tooling-preview:1.5.4
+androidx.compose.ui:ui-unit-android:1.5.4
+androidx.compose.ui:ui-unit:1.5.4
+androidx.compose.ui:ui-util-android:1.5.4
+androidx.compose.ui:ui-util:1.5.4
+androidx.compose.ui:ui:1.5.4
+androidx.compose:compose-bom:2023.10.01
+androidx.concurrent:concurrent-futures:1.1.0
+androidx.core:core-ktx:1.12.0
+androidx.core:core:1.12.0
+androidx.customview:customview-poolingcontainer:1.0.0
+androidx.customview:customview:1.0.0
+androidx.datastore:datastore-core:1.0.0
+androidx.datastore:datastore:1.0.0
+androidx.documentfile:documentfile:1.0.0
+androidx.emoji2:emoji2:1.4.0
+androidx.exifinterface:exifinterface:1.3.6
+androidx.fragment:fragment:1.5.1
+androidx.interpolator:interpolator:1.0.0
+androidx.legacy:legacy-support-core-utils:1.0.0
+androidx.lifecycle:lifecycle-common-java8:2.6.1
+androidx.lifecycle:lifecycle-common:2.6.1
+androidx.lifecycle:lifecycle-livedata-core:2.6.1
+androidx.lifecycle:lifecycle-livedata:2.6.1
+androidx.lifecycle:lifecycle-process:2.6.1
+androidx.lifecycle:lifecycle-runtime-ktx:2.6.1
+androidx.lifecycle:lifecycle-runtime:2.6.1
+androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.1
+androidx.lifecycle:lifecycle-viewmodel-savedstate:2.6.1
+androidx.lifecycle:lifecycle-viewmodel:2.6.1
+androidx.loader:loader:1.0.0
+androidx.localbroadcastmanager:localbroadcastmanager:1.0.0
+androidx.metrics:metrics-performance:1.0.0-alpha04
+androidx.print:print:1.0.0
+androidx.privacysandbox.ads:ads-adservices-java:1.0.0-beta05
+androidx.privacysandbox.ads:ads-adservices:1.0.0-beta05
+androidx.profileinstaller:profileinstaller:1.3.1
+androidx.room:room-common:2.6.0
+androidx.room:room-ktx:2.6.0
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+androidx.sqlite:sqlite-framework:2.4.0
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+androidx.startup:startup-runtime:1.1.1
+androidx.tracing:tracing-ktx:1.1.0
+androidx.tracing:tracing:1.1.0
+androidx.vectordrawable:vectordrawable-animated:1.1.0
+androidx.vectordrawable:vectordrawable:1.1.0
+androidx.versionedparcelable:versionedparcelable:1.1.1
+androidx.viewpager:viewpager:1.0.0
+com.caverock:androidsvg-aar:1.4
+com.google.accompanist:accompanist-drawablepainter:0.30.1
+com.google.android.datatransport:transport-api:3.0.0
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+com.google.android.gms:play-services-ads-identifier:18.0.0
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+com.google.android.gms:play-services-measurement-api:21.4.0
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+com.google.android.gms:play-services-measurement-sdk-api:21.4.0
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+com.google.android.gms:play-services-measurement:21.4.0
+com.google.android.gms:play-services-stats:17.0.2
+com.google.android.gms:play-services-tasks:18.0.2
+com.google.code.findbugs:jsr305:3.0.2
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+com.google.errorprone:error_prone_annotations:2.11.0
+com.google.firebase:firebase-analytics-ktx:21.4.0
+com.google.firebase:firebase-analytics:21.4.0
+com.google.firebase:firebase-annotations:16.2.0
+com.google.firebase:firebase-bom:32.4.0
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+com.google.firebase:firebase-iid-interop:17.1.0
+com.google.firebase:firebase-installations-interop:17.1.1
+com.google.firebase:firebase-installations:17.2.0
+com.google.firebase:firebase-measurement-connector:19.0.0
+com.google.firebase:firebase-messaging-ktx:23.3.0
+com.google.firebase:firebase-messaging:23.3.0
+com.google.guava:failureaccess:1.0.1
+com.google.guava:guava:31.1-android
+com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava
+com.google.j2objc:j2objc-annotations:1.3
+com.google.protobuf:protobuf-javalite:3.24.4
+com.google.protobuf:protobuf-kotlin-lite:3.24.4
+com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:1.0.0
+com.squareup.okhttp3:logging-interceptor:4.12.0
+com.squareup.okhttp3:okhttp:4.12.0
+com.squareup.okio:okio-jvm:3.6.0
+com.squareup.okio:okio:3.6.0
+com.squareup.retrofit2:retrofit:2.9.0
+io.coil-kt:coil-base:2.4.0
+io.coil-kt:coil-compose-base:2.4.0
+io.coil-kt:coil-compose:2.4.0
+io.coil-kt:coil-svg:2.4.0
+io.coil-kt:coil:2.4.0
+javax.inject:javax.inject:1
+org.checkerframework:checker-qual:3.12.0
+org.jetbrains.kotlin:kotlin-stdlib-common:1.9.10
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.9.10
+org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.10
+org.jetbrains.kotlin:kotlin-stdlib:1.9.10
+org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.3
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+org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.3
+org.jetbrains.kotlinx:kotlinx-coroutines-play-services:1.7.3
+org.jetbrains.kotlinx:kotlinx-datetime-jvm:0.4.1
+org.jetbrains.kotlinx:kotlinx-datetime:0.4.1
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+org.jetbrains:annotations:23.0.0

app/build.gradle.kts

@@ -144,3 +144,7 @@ baselineProfile {
     // Instead enable generation directly for the release build variant.
     automaticGenerationDuringBuild = false
 }
+
+dependencyGuard {
+    configuration("prodReleaseRuntimeClasspath")
+}

app/dependencies/prodReleaseRuntimeClasspath.txt

@@ -0,0 +1,211 @@
+androidx.activity:activity-compose:1.8.0
+androidx.activity:activity-ktx:1.8.0
+androidx.activity:activity:1.8.0
+androidx.annotation:annotation-experimental:1.3.0
+androidx.annotation:annotation-jvm:1.6.0
+androidx.annotation:annotation:1.6.0
+androidx.appcompat:appcompat-resources:1.6.1
+androidx.appcompat:appcompat:1.6.1
+androidx.arch.core:core-common:2.2.0
+androidx.arch.core:core-runtime:2.2.0
+androidx.autofill:autofill:1.0.0
+androidx.browser:browser:1.6.0
+androidx.collection:collection-ktx:1.1.0
+androidx.collection:collection:1.2.0
+androidx.compose.animation:animation-android:1.5.4
+androidx.compose.animation:animation-core-android:1.5.4
+androidx.compose.animation:animation-core:1.5.4
+androidx.compose.animation:animation:1.5.4
+androidx.compose.foundation:foundation-android:1.5.4
+androidx.compose.foundation:foundation-layout-android:1.5.4
+androidx.compose.foundation:foundation-layout:1.5.4
+androidx.compose.foundation:foundation:1.5.4
+androidx.compose.material3:material3-window-size-class:1.1.2
+androidx.compose.material3:material3:1.1.2
+androidx.compose.material:material-icons-core-android:1.5.4
+androidx.compose.material:material-icons-core:1.5.4
+androidx.compose.material:material-icons-extended-android:1.5.4
+androidx.compose.material:material-icons-extended:1.5.4
+androidx.compose.material:material-ripple-android:1.5.4
+androidx.compose.material:material-ripple:1.5.4
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+com.google.protobuf:protobuf-kotlin-lite:3.24.4
+com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:1.0.0
+com.squareup.okhttp3:logging-interceptor:4.12.0
+com.squareup.okhttp3:okhttp:4.12.0
+com.squareup.okio:okio-jvm:3.6.0
+com.squareup.okio:okio:3.6.0
+com.squareup.retrofit2:retrofit:2.9.0
+io.coil-kt:coil-base:2.4.0
+io.coil-kt:coil-compose-base:2.4.0
+io.coil-kt:coil-compose:2.4.0
+io.coil-kt:coil-svg:2.4.0
+io.coil-kt:coil:2.4.0
+io.github.aakira:napier-android:1.4.1
+io.github.aakira:napier:1.4.1
+javax.inject:javax.inject:1
+org.checkerframework:checker-qual:3.12.0
+org.jetbrains.kotlin:kotlin-stdlib-common:1.9.10
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.9.10
+org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.10
+org.jetbrains.kotlin:kotlin-stdlib:1.9.10
+org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.3
+org.jetbrains.kotlinx:kotlinx-coroutines-bom:1.7.3
+org.jetbrains.kotlinx:kotlinx-coroutines-core-jvm:1.7.3
+org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.3
+org.jetbrains.kotlinx:kotlinx-coroutines-guava:1.7.3
+org.jetbrains.kotlinx:kotlinx-coroutines-play-services:1.7.3
+org.jetbrains.kotlinx:kotlinx-datetime-jvm:0.4.1
+org.jetbrains.kotlinx:kotlinx-datetime:0.4.1
+org.jetbrains.kotlinx:kotlinx-serialization-bom:1.6.0
+org.jetbrains.kotlinx:kotlinx-serialization-core-jvm:1.6.0
+org.jetbrains.kotlinx:kotlinx-serialization-core:1.6.0
+org.jetbrains.kotlinx:kotlinx-serialization-json-jvm:1.6.0
+org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.0
+org.jetbrains:annotations:23.0.0

build-logic/convention/build.gradle.kts

@@ -43,6 +43,13 @@ dependencies {
     compileOnly(libs.ksp.gradlePlugin)
 }
 
+tasks {
+    validatePlugins {
+        enableStricterValidation = true
+        failOnWarning = true
+    }
+}
+
 gradlePlugin {
     plugins {
         register("androidApplicationCompose") {

build-logic/convention/src/main/kotlin/AndroidApplicationConventionPlugin.kt

@@ -15,10 +15,10 @@
  */
 
 import com.android.build.api.dsl.ApplicationExtension
-import com.google.samples.apps.nowinandroid.configureGradleManagedDevices
 import com.android.build.api.variant.ApplicationAndroidComponentsExtension
 import com.android.build.gradle.BaseExtension
 import com.google.samples.apps.nowinandroid.configureBadgingTasks
+import com.google.samples.apps.nowinandroid.configureGradleManagedDevices
 import com.google.samples.apps.nowinandroid.configureKotlinAndroid
 import com.google.samples.apps.nowinandroid.configurePrintApksTask
 import org.gradle.api.Plugin
@@ -33,6 +33,7 @@ class AndroidApplicationConventionPlugin : Plugin<Project> {
                 apply("com.android.application")
                 apply("org.jetbrains.kotlin.android")
                 apply("nowinandroid.android.lint")
+                apply("com.dropbox.dependency-guard")
             }
 
             extensions.configure<ApplicationExtension> {

build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/Badging.kt

@@ -26,11 +26,14 @@ import org.gradle.api.Project
 import org.gradle.api.file.DirectoryProperty
 import org.gradle.api.file.RegularFileProperty
 import org.gradle.api.provider.Property
+import org.gradle.api.tasks.CacheableTask
 import org.gradle.api.tasks.Copy
 import org.gradle.api.tasks.Input
 import org.gradle.api.tasks.InputFile
 import org.gradle.api.tasks.OutputDirectory
 import org.gradle.api.tasks.OutputFile
+import org.gradle.api.tasks.PathSensitive
+import org.gradle.api.tasks.PathSensitivity
 import org.gradle.api.tasks.TaskAction
 import org.gradle.configurationcache.extensions.capitalized
 import org.gradle.kotlin.dsl.register
@@ -40,14 +43,17 @@ import java.io.File
 import java.nio.file.Files
 import javax.inject.Inject
 
+@CacheableTask
 abstract class GenerateBadgingTask : DefaultTask() {
 
     @get:OutputFile
     abstract val badging: RegularFileProperty
 
+    @get:PathSensitive(PathSensitivity.NONE)
     @get:InputFile
     abstract val apk: RegularFileProperty
 
+    @get:PathSensitive(PathSensitivity.NONE)
     @get:InputFile
     abstract val aapt2Executable: RegularFileProperty
 
@@ -68,6 +74,7 @@ abstract class GenerateBadgingTask : DefaultTask() {
     }
 }
 
+@CacheableTask
 abstract class CheckBadgingTask : DefaultTask() {
 
     // In order for the task to be up-to-date when the inputs have not changed,
@@ -76,9 +83,11 @@ abstract class CheckBadgingTask : DefaultTask() {
     @get:OutputDirectory
     abstract val output: DirectoryProperty
 
+    @get:PathSensitive(PathSensitivity.NONE)
     @get:InputFile
     abstract val goldenBadging: RegularFileProperty
 
+    @get:PathSensitive(PathSensitivity.NONE)
     @get:InputFile
     abstract val generatedBadging: RegularFileProperty
 

build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/PrintTestApks.kt

@@ -30,7 +30,10 @@ import org.gradle.api.tasks.Input
 import org.gradle.api.tasks.InputDirectory
 import org.gradle.api.tasks.InputFiles
 import org.gradle.api.tasks.Internal
+import org.gradle.api.tasks.PathSensitive
+import org.gradle.api.tasks.PathSensitivity
 import org.gradle.api.tasks.TaskAction
+import org.gradle.work.DisableCachingByDefault
 import java.io.File
 
 internal fun Project.configurePrintApksTask(extension: AndroidComponentsExtension<*, *, *>) {
@@ -62,10 +65,14 @@ internal fun Project.configurePrintApksTask(extension: AndroidComponentsExtensio
     }
 }
 
+@DisableCachingByDefault(because = "Prints output")
 internal abstract class PrintApkLocationTask : DefaultTask() {
+
+    @get:PathSensitive(PathSensitivity.RELATIVE)
     @get:InputDirectory
     abstract val apkFolder: DirectoryProperty
 
+    @get:PathSensitive(PathSensitivity.RELATIVE)
     @get:InputFiles
     abstract val sources: ListProperty<Directory>
 

build.gradle.kts

@@ -36,6 +36,7 @@ plugins {
     alias(libs.plugins.baselineprofile) apply false
     alias(libs.plugins.kotlin.jvm) apply false
     alias(libs.plugins.kotlin.serialization) apply false
+    alias(libs.plugins.dependencyGuard) apply false
     alias(libs.plugins.firebase.crashlytics) apply false
     alias(libs.plugins.firebase.perf) apply false
     alias(libs.plugins.gms) apply false

core/designsystem/src/main/kotlin/com/google/samples/apps/nowinandroid/core/designsystem/component/scrollbar/AppScrollbars.kt

@@ -16,10 +16,10 @@
 
 package com.google.samples.apps.nowinandroid.core.designsystem.component.scrollbar
 
+import android.annotation.SuppressLint
 import androidx.compose.animation.animateColorAsState
 import androidx.compose.animation.core.Spring
 import androidx.compose.animation.core.SpringSpec
-import androidx.compose.foundation.background
 import androidx.compose.foundation.gestures.Orientation
 import androidx.compose.foundation.gestures.Orientation.Horizontal
 import androidx.compose.foundation.gestures.Orientation.Vertical
@@ -38,12 +38,22 @@ import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.State
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.Size
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.ColorProducer
+import androidx.compose.ui.graphics.Outline
+import androidx.compose.ui.graphics.drawOutline
+import androidx.compose.ui.graphics.drawscope.ContentDrawScope
+import androidx.compose.ui.node.DrawModifierNode
+import androidx.compose.ui.node.ModifierNodeElement
+import androidx.compose.ui.node.invalidateDraw
+import androidx.compose.ui.unit.LayoutDirection
 import androidx.compose.ui.unit.dp
 import com.google.samples.apps.nowinandroid.core.designsystem.component.scrollbar.ThumbState.Active
 import com.google.samples.apps.nowinandroid.core.designsystem.component.scrollbar.ThumbState.Dormant
@@ -130,12 +140,7 @@ private fun ScrollableState.DraggableScrollbarThumb(
                     Horizontal -> height(12.dp).fillMaxWidth()
                 }
             }
-            .background(
+            .scrollThumb(this, interactionSource),
-                color = scrollbarThumbColor(
-                    interactionSource = interactionSource,
-                ),
-                shape = RoundedCornerShape(16.dp),
-            ),
     )
 }
 
@@ -155,31 +160,72 @@ private fun ScrollableState.DecorativeScrollbarThumb(
                     Horizontal -> height(2.dp).fillMaxWidth()
                 }
             }
-            .background(
+            .scrollThumb(this, interactionSource),
-                color = scrollbarThumbColor(
-                    interactionSource = interactionSource,
-                ),
-                shape = RoundedCornerShape(16.dp),
-            ),
     )
 }
 
+// TODO: This lint is removed in 1.6 as the recommendation has changed
+// remove when project is upgraded
+@SuppressLint("ComposableModifierFactory")
+@Composable
+private fun Modifier.scrollThumb(
+    scrollableState: ScrollableState,
+    interactionSource: InteractionSource,
+): Modifier {
+    val colorState = scrollbarThumbColor(scrollableState, interactionSource)
+    return this then ScrollThumbElement { colorState.value }
+}
+
+private data class ScrollThumbElement(val colorProducer: ColorProducer) :
+    ModifierNodeElement<ScrollThumbNode>() {
+    override fun create(): ScrollThumbNode = ScrollThumbNode(colorProducer)
+    override fun update(node: ScrollThumbNode) {
+        node.colorProducer = colorProducer
+        node.invalidateDraw()
+    }
+}
+
+private class ScrollThumbNode(var colorProducer: ColorProducer) : DrawModifierNode, Modifier.Node() {
+    private val shape = RoundedCornerShape(16.dp)
+
+    // naive cache outline calculation if size is the same
+    private var lastSize: Size? = null
+    private var lastLayoutDirection: LayoutDirection? = null
+    private var lastOutline: Outline? = null
+
+    override fun ContentDrawScope.draw() {
+        val color = colorProducer()
+        val outline =
+            if (size == lastSize && layoutDirection == lastLayoutDirection) {
+                lastOutline!!
+            } else {
+                shape.createOutline(size, layoutDirection, this)
+            }
+        if (color != Color.Unspecified) drawOutline(outline, color = color)
+
+        lastOutline = outline
+        lastSize = size
+        lastLayoutDirection = layoutDirection
+    }
+}
+
 /**
  * The color of the scrollbar thumb as a function of its interaction state.
  * @param interactionSource source of interactions in the scrolling container
  */
 @Composable
-private fun ScrollableState.scrollbarThumbColor(
+private fun scrollbarThumbColor(
+    scrollableState: ScrollableState,
     interactionSource: InteractionSource,
-): Color {
+): State<Color> {
     var state by remember { mutableStateOf(Dormant) }
     val pressed by interactionSource.collectIsPressedAsState()
     val hovered by interactionSource.collectIsHoveredAsState()
     val dragged by interactionSource.collectIsDraggedAsState()
-    val active = (canScrollForward || canScrollForward) &&
+    val active = (scrollableState.canScrollForward || scrollableState.canScrollBackward) &&
-        (pressed || hovered || dragged || isScrollInProgress)
+        (pressed || hovered || dragged || scrollableState.isScrollInProgress)
 
-    val color by animateColorAsState(
+    val color = animateColorAsState(
         targetValue = when (state) {
             Active -> MaterialTheme.colorScheme.onSurface.copy(0.5f)
             Inactive -> MaterialTheme.colorScheme.onSurface.copy(alpha = 0.2f)

core/designsystem/src/main/kotlin/com/google/samples/apps/nowinandroid/core/designsystem/component/scrollbar/Scrollbar.kt

@@ -16,8 +16,9 @@
 
 package com.google.samples.apps.nowinandroid.core.designsystem.component.scrollbar
 
-import androidx.compose.animation.core.animateDpAsState
 import androidx.compose.foundation.gestures.Orientation
+import androidx.compose.foundation.gestures.Orientation.Horizontal
+import androidx.compose.foundation.gestures.Orientation.Vertical
 import androidx.compose.foundation.gestures.detectHorizontalDragGestures
 import androidx.compose.foundation.gestures.detectTapGestures
 import androidx.compose.foundation.gestures.detectVerticalDragGestures
@@ -28,31 +29,28 @@ import androidx.compose.foundation.interaction.PressInteraction
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.offset
-import androidx.compose.foundation.layout.width
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.Immutable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableFloatStateOf
+import androidx.compose.runtime.mutableLongStateOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberUpdatedState
 import androidx.compose.runtime.setValue
-import androidx.compose.ui.Alignment
+import androidx.compose.runtime.snapshotFlow
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.input.pointer.PointerInputChange
 import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.layout.Layout
+import androidx.compose.ui.layout.layout
 import androidx.compose.ui.layout.onGloballyPositioned
 import androidx.compose.ui.layout.positionInRoot
-import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.IntOffset
 import androidx.compose.ui.unit.IntSize
 import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.max
 import androidx.compose.ui.util.packFloats
 import androidx.compose.ui.util.unpackFloat1
 import androidx.compose.ui.util.unpackFloat2
@@ -61,6 +59,7 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.withTimeout
 import kotlin.math.max
 import kotlin.math.min
+import kotlin.math.roundToInt
 
 /**
  * The delay between scrolls when a user long presses on the scrollbar track to initiate a scroll
@@ -74,21 +73,59 @@ private const val SCROLLBAR_PRESS_DELAY_MS = 10L
  */
 private const val SCROLLBAR_PRESS_DELTA_PCT = 0.02f
 
+class ScrollbarState {
+    private var packedValue by mutableLongStateOf(0L)
+
+    internal fun onScroll(stateValue: ScrollbarStateValue) {
+        packedValue = stateValue.packedValue
+    }
+
+    /**
+     * Returns the thumb size of the scrollbar as a percentage of the total track size
+     */
+    val thumbSizePercent
+        get() = unpackFloat1(packedValue)
+
+    /**
+     * Returns the distance the thumb has traveled as a percentage of total track size
+     */
+    val thumbMovedPercent
+        get() = unpackFloat2(packedValue)
+
+    /**
+     * Returns the max distance the thumb can travel as a percentage of total track size
+     */
+    val thumbTrackSizePercent
+        get() = 1f - thumbSizePercent
+}
+
+/**
+ * Returns the size of the scrollbar track in pixels
+ */
+private val ScrollbarTrack.size
+    get() = unpackFloat2(packedValue) - unpackFloat1(packedValue)
+
+/**
+ * Returns the position of the scrollbar thumb on the track as a percentage
+ */
+private fun ScrollbarTrack.thumbPosition(
+    dimension: Float,
+): Float = max(
+    a = min(
+        a = dimension / size,
+        b = 1f,
+    ),
+    b = 0f,
+)
+
 /**
  * Class definition for the core properties of a scroll bar
  */
 @Immutable
 @JvmInline
-value class ScrollbarState internal constructor(
+value class ScrollbarStateValue internal constructor(
     internal val packedValue: Long,
-) {
+)
-    companion object {
-        val FULL = ScrollbarState(
-            thumbSizePercent = 1f,
-            thumbMovedPercent = 0f,
-        )
-    }
-}
 
 /**
  * Class definition for the core properties of a scroll bar track
@@ -105,54 +142,23 @@ private value class ScrollbarTrack(
 }
 
 /**
- * Creates a [ScrollbarState] with the listed properties
+ * Creates a [ScrollbarStateValue] with the listed properties
  * @param thumbSizePercent the thumb size of the scrollbar as a percentage of the total track size.
  *  Refers to either the thumb width (for horizontal scrollbars)
  *  or height (for vertical scrollbars).
  * @param thumbMovedPercent the distance the thumb has traveled as a percentage of total
  * track size.
  */
-fun ScrollbarState(
+fun scrollbarStateValue(
     thumbSizePercent: Float,
     thumbMovedPercent: Float,
-) = ScrollbarState(
+) = ScrollbarStateValue(
     packFloats(
         val1 = thumbSizePercent,
         val2 = thumbMovedPercent,
     ),
 )
 
-/**
- * Returns the thumb size of the scrollbar as a percentage of the total track size
- */
-val ScrollbarState.thumbSizePercent
-    get() = unpackFloat1(packedValue)
-
-/**
- * Returns the distance the thumb has traveled as a percentage of total track size
- */
-val ScrollbarState.thumbMovedPercent
-    get() = unpackFloat2(packedValue)
-
-/**
- * Returns the size of the scrollbar track in pixels
- */
-private val ScrollbarTrack.size
-    get() = unpackFloat2(packedValue) - unpackFloat1(packedValue)
-
-/**
- * Returns the position of the scrollbar thumb on the track as a percentage
- */
-private fun ScrollbarTrack.thumbPosition(
-    dimension: Float,
-): Float = max(
-    a = min(
-        a = dimension / size,
-        b = 1f,
-    ),
-    b = 0f,
-)
-
 /**
  * Returns the value of [offset] along the axis specified by [this]
  */
@@ -197,8 +203,6 @@ fun Scrollbar(
     thumb: @Composable () -> Unit,
     onThumbMoved: ((Float) -> Unit)? = null,
 ) {
-    val localDensity = LocalDensity.current
-
     // Using Offset.Unspecified and Float.NaN instead of null
     // to prevent unnecessary boxing of primitives
     var pressedOffset by remember { mutableStateOf(Offset.Unspecified) }
@@ -210,23 +214,6 @@ fun Scrollbar(
 
     var track by remember { mutableStateOf(ScrollbarTrack(packedValue = 0)) }
 
-    val thumbTravelPercent = when {
-        interactionThumbTravelPercent.isNaN() -> state.thumbMovedPercent
-        else -> interactionThumbTravelPercent
-    }
-    val thumbSizePx = max(
-        a = state.thumbSizePercent * track.size,
-        b = with(localDensity) { minThumbSize.toPx() },
-    )
-    val thumbSizeDp by animateDpAsState(
-        targetValue = with(localDensity) { thumbSizePx.toDp() },
-        label = "scrollbar thumb size",
-    )
-    val thumbMovedPx = min(
-        a = track.size * thumbTravelPercent,
-        b = track.size - thumbSizePx,
-    )
-
     // scrollbar track container
     Box(
         modifier = modifier
@@ -320,50 +307,76 @@ fun Scrollbar(
                 }
             },
     ) {
-        val scrollbarThumbMovedDp = max(
-            a = with(localDensity) { thumbMovedPx.toDp() },
-            b = 0.dp,
-        )
         // scrollbar thumb container
-        Box(
+        Layout(content = { thumb() }) { measurables, constraints ->
-            modifier = Modifier
+            val measurable = measurables.first()
-                .align(Alignment.TopStart)
+
-                .run {
+            val thumbSizePx = max(
-                    when (orientation) {
+                a = state.thumbSizePercent * track.size,
-                        Orientation.Horizontal -> width(thumbSizeDp)
+                b = minThumbSize.toPx(),
-                        Orientation.Vertical -> height(thumbSizeDp)
+            )
-                    }
+
+            val trackSizePx = when (state.thumbTrackSizePercent) {
+                0f -> track.size
+                else -> (track.size - thumbSizePx) / state.thumbTrackSizePercent
             }
-                .offset(
+
-                    y = when (orientation) {
+            val thumbTravelPercent = max(
-                        Orientation.Horizontal -> 0.dp
+                a = min(
-                        Orientation.Vertical -> scrollbarThumbMovedDp
+                    a = when {
-                    },
+                        interactionThumbTravelPercent.isNaN() -> state.thumbMovedPercent
-                    x = when (orientation) {
+                        else -> interactionThumbTravelPercent
-                        Orientation.Horizontal -> scrollbarThumbMovedDp
-                        Orientation.Vertical -> 0.dp
                     },
+                    b = state.thumbTrackSizePercent,
                 ),
-        ) {
+                b = 0f,
-            thumb()
+            )
+
+            val thumbMovedPx = trackSizePx * thumbTravelPercent
+
+            val y = when (orientation) {
+                Horizontal -> 0
+                Vertical -> thumbMovedPx.roundToInt()
             }
+            val x = when (orientation) {
+                Horizontal -> thumbMovedPx.roundToInt()
+                Vertical -> 0
             }
 
-    if (onThumbMoved == null) return
+            val updatedConstraints = when (orientation) {
+                Horizontal -> {
+                    constraints.copy(
+                        minWidth = thumbSizePx.roundToInt(),
+                        maxWidth = thumbSizePx.roundToInt(),
+                    )
+                }
+                Vertical -> {
+                    constraints.copy(
+                        minHeight = thumbSizePx.roundToInt(),
+                        maxHeight = thumbSizePx.roundToInt(),
+                    )
+                }
+            }
 
-    // State that will be read inside the effects that follow
+            val placeable = measurable.measure(updatedConstraints)
-    // but will not cause re-triggering of them
+            layout(placeable.width, placeable.height) {
-    val updatedState by rememberUpdatedState(state)
+                placeable.place(x, y)
+            }
+        }
+    }
+
+    if (onThumbMoved == null) return
 
     // Process presses
-    LaunchedEffect(pressedOffset) {
+    LaunchedEffect(Unit) {
+        snapshotFlow { pressedOffset }.collect { pressedOffset ->
             // Press ended, reset interactionThumbTravelPercent
             if (pressedOffset == Offset.Unspecified) {
                 interactionThumbTravelPercent = Float.NaN
-            return@LaunchedEffect
+                return@collect
             }
 
-        var currentThumbMovedPercent = updatedState.thumbMovedPercent
+            var currentThumbMovedPercent = state.thumbMovedPercent
             val destinationThumbMovedPercent = track.thumbPosition(
                 dimension = orientation.valueOf(pressedOffset),
             )
@@ -387,12 +400,14 @@ fun Scrollbar(
                 delay(SCROLLBAR_PRESS_DELAY_MS)
             }
         }
+    }
 
     // Process drags
-    LaunchedEffect(draggedOffset) {
+    LaunchedEffect(Unit) {
+        snapshotFlow { draggedOffset }.collect { draggedOffset ->
             if (draggedOffset == Offset.Unspecified) {
                 interactionThumbTravelPercent = Float.NaN
-            return@LaunchedEffect
+                return@collect
             }
             val currentTravel = track.thumbPosition(
                 dimension = orientation.valueOf(draggedOffset),
@@ -400,4 +415,5 @@ fun Scrollbar(
             onThumbMoved(currentTravel)
             interactionThumbTravelPercent = currentTravel
         }
+    }
 }

core/designsystem/src/main/kotlin/com/google/samples/apps/nowinandroid/core/designsystem/component/scrollbar/ScrollbarExt.kt

@@ -24,7 +24,8 @@ import androidx.compose.foundation.lazy.grid.LazyGridState
 import androidx.compose.foundation.lazy.staggeredgrid.LazyStaggeredGridItemInfo
 import androidx.compose.foundation.lazy.staggeredgrid.LazyStaggeredGridState
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.produceState
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.remember
 import androidx.compose.runtime.snapshotFlow
 import kotlinx.coroutines.flow.distinctUntilChanged
 import kotlinx.coroutines.flow.filterNotNull
@@ -40,11 +41,9 @@ import kotlin.math.min
 fun LazyListState.scrollbarState(
     itemsAvailable: Int,
     itemIndex: (LazyListItemInfo) -> Int = LazyListItemInfo::index,
-): ScrollbarState = produceState(
+): ScrollbarState {
-    initialValue = ScrollbarState.FULL,
+    val state = remember { ScrollbarState() }
-    key1 = this,
+    LaunchedEffect(this, itemsAvailable) {
-    key2 = itemsAvailable,
-) {
         snapshotFlow {
             if (itemsAvailable == 0) return@snapshotFlow null
 
@@ -80,7 +79,7 @@ fun LazyListState.scrollbarState(
                 a = itemsVisible / itemsAvailable,
                 b = 1f,
             )
-        ScrollbarState(
+            scrollbarStateValue(
                 thumbSizePercent = thumbSizePercent,
                 thumbMovedPercent = when {
                     layoutInfo.reverseLayout -> 1f - thumbTravelPercent
@@ -90,8 +89,10 @@ fun LazyListState.scrollbarState(
         }
             .filterNotNull()
             .distinctUntilChanged()
-        .collect { value = it }
+            .collect { state.onScroll(it) }
-}.value
+    }
+    return state
+}
 
 /**
  * Calculates a [ScrollbarState] driven by the changes in a [LazyGridState]
@@ -103,11 +104,9 @@ fun LazyListState.scrollbarState(
 fun LazyGridState.scrollbarState(
     itemsAvailable: Int,
     itemIndex: (LazyGridItemInfo) -> Int = LazyGridItemInfo::index,
-): ScrollbarState = produceState(
+): ScrollbarState {
-    initialValue = ScrollbarState.FULL,
+    val state = remember { ScrollbarState() }
-    key1 = this,
+    LaunchedEffect(this, itemsAvailable) {
-    key2 = itemsAvailable,
-) {
         snapshotFlow {
             if (itemsAvailable == 0) return@snapshotFlow null
 
@@ -153,7 +152,7 @@ fun LazyGridState.scrollbarState(
                 a = itemsVisible / itemsAvailable,
                 b = 1f,
             )
-        ScrollbarState(
+            scrollbarStateValue(
                 thumbSizePercent = thumbSizePercent,
                 thumbMovedPercent = when {
                     layoutInfo.reverseLayout -> 1f - thumbTravelPercent
@@ -163,8 +162,10 @@ fun LazyGridState.scrollbarState(
         }
             .filterNotNull()
             .distinctUntilChanged()
-        .collect { value = it }
+            .collect { state.onScroll(it) }
-}.value
+    }
+    return state
+}
 
 /**
  * Remembers a [ScrollbarState] driven by the changes in a [LazyStaggeredGridState]
@@ -177,11 +178,9 @@ fun LazyGridState.scrollbarState(
 fun LazyStaggeredGridState.scrollbarState(
     itemsAvailable: Int,
     itemIndex: (LazyStaggeredGridItemInfo) -> Int = LazyStaggeredGridItemInfo::index,
-): ScrollbarState = produceState(
+): ScrollbarState {
-    initialValue = ScrollbarState.FULL,
+    val state = remember { ScrollbarState() }
-    key1 = this,
+    LaunchedEffect(this, itemsAvailable) {
-    key2 = itemsAvailable,
-) {
         snapshotFlow {
             if (itemsAvailable == 0) return@snapshotFlow null
 
@@ -219,15 +218,17 @@ fun LazyStaggeredGridState.scrollbarState(
                 a = itemsVisible / itemsAvailable,
                 b = 1f,
             )
-        ScrollbarState(
+            scrollbarStateValue(
                 thumbSizePercent = thumbSizePercent,
                 thumbMovedPercent = thumbTravelPercent,
             )
         }
             .filterNotNull()
             .distinctUntilChanged()
-        .collect { value = it }
+            .collect { state.onScroll(it) }
-}.value
+    }
+    return state
+}
 
 private inline fun <T> List<T>.floatSumOf(selector: (T) -> Float): Float {
     var sum = 0f

core/designsystem/src/main/kotlin/com/google/samples/apps/nowinandroid/core/designsystem/component/scrollbar/ThumbExt.kt

@@ -26,6 +26,7 @@ import androidx.compose.runtime.mutableFloatStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberUpdatedState
 import androidx.compose.runtime.setValue
+import kotlin.math.roundToInt
 
 /**
  * Remembers a function to react to [Scrollbar] thumb position displacements for a [LazyListState]
@@ -79,7 +80,7 @@ private inline fun rememberDraggableScroller(
 
     LaunchedEffect(percentage) {
         if (percentage.isNaN()) return@LaunchedEffect
-        val indexToFind = (itemCount * percentage).toInt()
+        val indexToFind = (itemCount * percentage).roundToInt()
         scroll(indexToFind)
     }
     return remember {

core/ui/src/main/kotlin/com/google/samples/apps/nowinandroid/core/ui/NewsFeed.kt

@@ -30,9 +30,6 @@ import androidx.compose.foundation.lazy.staggeredgrid.StaggeredGridCells
 import androidx.compose.foundation.lazy.staggeredgrid.items
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.toArgb
 import androidx.compose.ui.platform.LocalContext
@@ -64,9 +61,6 @@ fun LazyStaggeredGridScope.newsFeed(
                 key = { it.id },
                 contentType = { "newsFeedItem" },
             ) { userNewsResource ->
-                val resourceUrl by remember {
-                    mutableStateOf(Uri.parse(userNewsResource.url))
-                }
                 val context = LocalContext.current
                 val analyticsHelper = LocalAnalyticsHelper.current
                 val backgroundColor = MaterialTheme.colorScheme.background.toArgb()
@@ -79,7 +73,8 @@ fun LazyStaggeredGridScope.newsFeed(
                         analyticsHelper.logNewsResourceOpened(
                             newsResourceId = userNewsResource.id,
                         )
-                        launchCustomChromeTab(context, resourceUrl, backgroundColor)
+                        launchCustomChromeTab(context, Uri.parse(userNewsResource.url), backgroundColor)
+
                         onNewsResourceViewed(userNewsResource.id)
                     },
                     hasBeenViewed = userNewsResource.hasBeenViewed,

gradle/libs.versions.toml

@@ -31,6 +31,7 @@ androidxUiAutomator = "2.2.0"
 androidxWindowManager = "1.1.0"
 androidxWork = "2.9.0-rc01"
 coil = "2.4.0"
+dependencyGuard = "0.4.3"
 firebaseBom = "32.6.0"
 firebaseCrashlyticsPlugin = "2.9.9"
 firebasePerfPlugin = "1.4.2"
@@ -67,6 +68,7 @@ androidx-appcompat = { group = "androidx.appcompat", name = "appcompat", version
 androidx-benchmark-macro = { group = "androidx.benchmark", name = "benchmark-macro-junit4", version.ref = "androidxMacroBenchmark" }
 androidx-browser = { group = "androidx.browser", name = "browser", version.ref = "androidxBrowser" }
 androidx-compose-bom = { group = "androidx.compose", name = "compose-bom", version.ref = "androidxComposeBom" }
+androidx-compose-compiler = { group = "androidx.compose.compiler", name = "compiler", version.ref = "androidxComposeCompiler" }
 androidx-compose-foundation = { group = "androidx.compose.foundation", name = "foundation" }
 androidx-compose-foundation-layout = { group = "androidx.compose.foundation", name = "foundation-layout" }
 androidx-compose-material-iconsExtended = { group = "androidx.compose.material", name = "material-icons-extended" }
@@ -155,6 +157,7 @@ android-application = { id = "com.android.application", version.ref = "androidGr
 android-library = { id = "com.android.library", version.ref = "androidGradlePlugin" }
 android-test = { id = "com.android.test", version.ref = "androidGradlePlugin" }
 baselineprofile = { id = "androidx.baselineprofile", version.ref = "androidxMacroBenchmark"}
+dependencyGuard = { id = "com.dropbox.dependency-guard", version.ref = "dependencyGuard" }
 firebase-crashlytics = { id = "com.google.firebase.crashlytics", version.ref = "firebaseCrashlyticsPlugin" }
 firebase-perf = { id = "com.google.firebase.firebase-perf", version.ref = "firebasePerfPlugin" }
 gms = { id = "com.google.gms.google-services", version.ref = "gmsPlugin" }