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Bořek Leikep
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Baseline profile setup for the Catalog app and the published libraries.
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‎.idea/runConfigurations/Generate_Baseline_Profile.xml

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‎baselineprofile/.gitignore

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/build

‎baselineprofile/build.gradle.kts

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@file:Suppress("UnstableApiUsage")
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import com.android.build.api.dsl.ManagedVirtualDevice
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plugins {
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kotlin("android")
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id("com.android.test")
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id("androidx.baselineprofile")
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id("org.jmailen.kotlinter")
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}
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android {
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namespace = "kiwi.orbit.compose.baselineprofile"
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compileSdk = libs.versions.compileSdk.get().toInt()
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compileOptions {
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sourceCompatibility = JavaVersion.VERSION_1_8
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targetCompatibility = JavaVersion.VERSION_1_8
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}
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defaultConfig {
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minSdk = 28
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targetSdk = libs.versions.targetSdk.get().toInt()
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testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
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}
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lint {
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abortOnError = true
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warningsAsErrors = true
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}
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targetProjectPath = ":catalog"
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testOptions {
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animationsDisabled = true
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managedDevices.devices {
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create<ManagedVirtualDevice>("pixel6Api33") {
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device = "Pixel 6"
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apiLevel = 33
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systemImageSource = "google-atd"
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}
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}
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}
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}
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kotlinter {
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reporters = arrayOf("json")
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}
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baselineProfile {
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managedDevices += "pixel6Api33"
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useConnectedDevices = false
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}
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dependencies {
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implementation(projects.catalog.semantics)
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implementation(libs.androidx.benchmark.macro)
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implementation(libs.androidx.test.espresso)
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implementation(libs.androidx.test.ext.junit)
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implementation(libs.androidx.test.uiAutomator)
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}

‎baselineprofile/src/main/java/com/example/baselineprofile/BaselineProfileGenerator.kt

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package com.example.baselineprofile
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import androidx.benchmark.macro.MacrobenchmarkScope
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import androidx.benchmark.macro.junit4.BaselineProfileRule
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import androidx.test.filters.LargeTest
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import androidx.test.uiautomator.By
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import androidx.test.uiautomator.UiScrollable
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import androidx.test.uiautomator.UiSelector
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import androidx.test.uiautomator.Until
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import kiwi.orbit.compose.catalog.semantics.AlertScreenSemantics
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import kiwi.orbit.compose.catalog.semantics.ButtonScreenSemantics
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import kiwi.orbit.compose.catalog.semantics.DialogScreenSemantics
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import kiwi.orbit.compose.catalog.semantics.MainScreenSemantics
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import kiwi.orbit.compose.catalog.semantics.PillButtonScreenSemantics
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import kiwi.orbit.compose.catalog.semantics.SelectFieldScreenSemantics
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import kiwi.orbit.compose.catalog.semantics.SubScreenSemantics
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import kiwi.orbit.compose.catalog.semantics.ToastScreenSemantics
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import kiwi.orbit.compose.catalog.semantics.TopAppBarScreenSemantics
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import org.junit.Rule
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import org.junit.Test
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import org.junit.runner.RunWith
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/**
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* This test class generates a basic startup baseline profile for the target package.
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*
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* We recommend you start with this but add important user flows to the profile to improve their performance.
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* Refer to the [baseline profile documentation](https://d.android.com/topic/performance/baselineprofiles)
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* for more information.
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*
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* You can run the generator with the Generate Baseline Profile run configuration,
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* or directly with `generateBaselineProfile` Gradle task:
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* ```
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* ./gradlew :catalog:generateReleaseBaselineProfile -Pandroid.testInstrumentationRunnerArguments.androidx.benchmark.enabledRules=BaselineProfile
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* ```
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* The run configuration runs the Gradle task and applies filtering to run only the generators.
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*
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* Check [documentation](https://d.android.com/topic/performance/benchmarking/macrobenchmark-instrumentation-args)
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* for more information about available instrumentation arguments.
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*
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* After you run the generator, you can verify the improvements running the [StartupBenchmarks] benchmark.
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**/
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@RunWith(AndroidJUnit4::class)
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@LargeTest
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internal class BaselineProfileGenerator {
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private companion object {
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const val TIMEOUT = 5000L
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}
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@get:Rule
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val rule = BaselineProfileRule()
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@Test
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fun generate() {
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rule.collect(
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packageName = "kiwi.orbit.compose.catalog",
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maxIterations = 5,
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stableIterations = 2,
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) {
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pressHome()
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startActivityAndWait()
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profileSubScreen(MainScreenSemantics.ColorsItemTag)
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profileSubScreen(MainScreenSemantics.IconsItemTag)
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profileSubScreen(MainScreenSemantics.IllustrationsItemTag)
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profileSubScreen(MainScreenSemantics.TypographyItemTag)
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profileSubScreen(MainScreenSemantics.AlertItemTag) {
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device.findObject(By.res(AlertScreenSemantics.NormalTabTag)).click()
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device.findObject(By.res(AlertScreenSemantics.SuppressedTabTag)).click()
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device.findObject(By.res(AlertScreenSemantics.InlineTabTag)).click()
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}
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profileSubScreen(MainScreenSemantics.BadgeItemTag)
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profileSubScreen(MainScreenSemantics.BadgeListItemTag)
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profileSubScreen(MainScreenSemantics.ButtonItemTag) {
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device.findObject(By.res(ButtonScreenSemantics.ButtonTabTag)).click()
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device.findObject(By.res(ButtonScreenSemantics.ButtonLinkTabTag)).click()
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}
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profileSubScreen(MainScreenSemantics.CardItemTag)
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profileSubScreen(MainScreenSemantics.CheckboxItemTag)
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profileSubScreen(MainScreenSemantics.ChoiceTileItemTag)
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profileSubScreen(MainScreenSemantics.CollapseItemTag)
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profileSubScreen(MainScreenSemantics.DialogItemTag) {
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device.findObject(By.res(DialogScreenSemantics.OrbitDialogButtonTag))
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.clickAndWait(Until.newWindow(), TIMEOUT)
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device.pressBack()
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device.findObject(By.res(DialogScreenSemantics.M3DialogButtonTag))
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.clickAndWait(Until.newWindow(), TIMEOUT)
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device.pressBack()
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device.findObject(By.res(DialogScreenSemantics.M3TimePickerButtonTag))
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.clickAndWait(Until.newWindow(), TIMEOUT)
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device.pressBack()
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device.findObject(By.res(DialogScreenSemantics.M3DatePickerButtonTag))
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.clickAndWait(Until.newWindow(), TIMEOUT)
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device.pressBack()
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}
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profileSubScreen(MainScreenSemantics.EmptyStateItemTag)
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profileSubScreen(MainScreenSemantics.KeyValueItemTag)
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profileSubScreen(MainScreenSemantics.ListItemTag)
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profileSubScreen(MainScreenSemantics.ListChoiceItemTag)
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profileSubScreen(MainScreenSemantics.LoadingItemTag)
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profileSubScreen(MainScreenSemantics.PillButtonItemTag) {
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device.findObject(By.res(PillButtonScreenSemantics.ShowWithIconButtonTag)).click()
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}
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profileSubScreen(MainScreenSemantics.ProgressIndicatorItemTag)
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profileSubScreen(MainScreenSemantics.RadioItemTag)
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profileSubScreen(MainScreenSemantics.SeatItemTag)
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profileSubScreen(MainScreenSemantics.SegmentedSwitchItemTag)
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profileSubScreen(MainScreenSemantics.SelectFieldItemTag) {
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device.findObject(By.res(SelectFieldScreenSemantics.CountrySelectFieldTag)).click() // open
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device.findObject(By.res(SelectFieldScreenSemantics.CountrySelectFieldTag)).click() // close
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Thread.sleep(1000L) // back navigation is blocked until the popup is fully closed
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}
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profileSubScreen(MainScreenSemantics.SliderItemTag)
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profileSubScreen(MainScreenSemantics.StepperItemTag)
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profileSubScreen(MainScreenSemantics.SurfaceCardItemTag)
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profileSubScreen(MainScreenSemantics.SwitchItemTag)
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profileSubScreen(MainScreenSemantics.TabsItemTag)
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profileSubScreen(MainScreenSemantics.TagItemTag)
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profileSubScreen(MainScreenSemantics.TextFieldItemTag)
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profileSubScreen(MainScreenSemantics.TileItemTag)
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profileSubScreen(MainScreenSemantics.TileGroupItemTag)
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profileSubScreen(MainScreenSemantics.TimelineItemTag)
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profileSubScreen(MainScreenSemantics.ToastItemTag) {
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device.findObject(By.res(ToastScreenSemantics.ToastSignedInButtonTag)).click()
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}
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profileSubScreen(MainScreenSemantics.TopAppBarItemTag) {
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device.findObject(By.res(TopAppBarScreenSemantics.NormalSimpleButtonTag)).click()
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device.wait(Until.hasObject(By.res(TopAppBarScreenSemantics.NormalSimpleScreenTag)), TIMEOUT)
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device.pressBack()
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device.wait(Until.hasObject(By.res(SubScreenSemantics.Tag)), TIMEOUT)
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device.findObject(By.res(TopAppBarScreenSemantics.LargeSimpleButtonTag)).click()
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device.wait(Until.hasObject(By.res(TopAppBarScreenSemantics.LargeSimpleScreenTag)), TIMEOUT)
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device.pressBack()
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}
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}
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}
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private fun MacrobenchmarkScope.profileSubScreen(
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mainScreenItemTag: String,
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profileContent: MacrobenchmarkScope.() -> Unit = {},
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) {
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val mainScreenScrollable = UiScrollable(UiSelector().scrollable(true))
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mainScreenScrollable.scrollIntoView(UiSelector().resourceId(mainScreenItemTag))
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device.wait(Until.hasObject(By.res(mainScreenItemTag)), TIMEOUT)
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device.findObject(By.res(mainScreenItemTag)).click()
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device.wait(Until.hasObject(By.res(SubScreenSemantics.Tag)), TIMEOUT)
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profileContent()
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device.pressBack()
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device.wait(Until.hasObject(By.res(MainScreenSemantics.Tag)), TIMEOUT)
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}
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}

‎baselineprofile/src/main/java/com/example/baselineprofile/StartupBenchmarks.kt

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package com.example.baselineprofile
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import androidx.benchmark.macro.BaselineProfileMode
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import androidx.benchmark.macro.CompilationMode
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import androidx.benchmark.macro.StartupMode
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import androidx.benchmark.macro.StartupTimingMetric
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import androidx.benchmark.macro.junit4.MacrobenchmarkRule
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import androidx.test.filters.LargeTest
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import org.junit.Rule
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import org.junit.Test
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import org.junit.runner.RunWith
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/**
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* This test class benchmarks the speed of app startup.
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* Run this benchmark to verify how effective a Baseline Profile is.
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* It does this by comparing [CompilationMode.None], which represents the app with no Baseline
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* Profiles optimizations, and [CompilationMode.Partial], which uses Baseline Profiles.
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*
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* Run this benchmark to see startup measurements and captured system traces for verifying
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* the effectiveness of your Baseline Profiles. You can run it directly from Android
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* Studio as an instrumentation test, or run all benchmarks with this Gradle task:
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* ```
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* ./gradlew :baselineprofile:connectedAndroidTest -Pandroid.testInstrumentationRunnerArguments.androidx.benchmark.enabledRules=Macrobenchmark
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* ```
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*
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* You should run the benchmarks on a physical device, not an Android emulator, because the
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* emulator doesn't represent real world performance and shares system resources with its host.
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*
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* For more information, see the [Macrobenchmark documentation](https://d.android.com/macrobenchmark#create-macrobenchmark)
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* and the [instrumentation arguments documentation](https://d.android.com/topic/performance/benchmarking/macrobenchmark-instrumentation-args).
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**/
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@RunWith(AndroidJUnit4::class)
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@LargeTest
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internal class StartupBenchmarks {
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@get:Rule
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val rule = MacrobenchmarkRule()
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@Test
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fun startupCompilationNone() {
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benchmark(CompilationMode.None())
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}
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@Test
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fun startupCompilationBaselineProfiles() {
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benchmark(CompilationMode.Partial(BaselineProfileMode.Require))
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}
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private fun benchmark(compilationMode: CompilationMode) {
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rule.measureRepeated(
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packageName = "kiwi.orbit.compose.catalog",
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metrics = listOf(StartupTimingMetric()),
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compilationMode = compilationMode,
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startupMode = StartupMode.COLD,
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iterations = 10,
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setupBlock = { pressHome() },
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) {
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startActivityAndWait()
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}
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}
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}

‎build.gradle.kts

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kotlin("multiplatform") version "1.9.10" apply false
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kotlin("plugin.serialization") version "1.9.10" apply false
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id("com.android.library") version "8.0.2" apply false
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id("com.android.test") version "8.0.2" apply false
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id("androidx.baselineprofile") version "1.2.0-beta01" apply false
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id("app.cash.paparazzi") version "1.3.1" apply false
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id("com.google.firebase.appdistribution") version "4.0.0" apply false
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id("com.vanniktech.maven.publish.base") version "0.25.3" apply false

‎catalog/build.gradle.kts

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kotlin("android")
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kotlin("plugin.serialization")
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id("com.android.application")
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id("androidx.baselineprofile")
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id("org.jmailen.kotlinter")
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id("com.google.firebase.appdistribution")
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kotlin("plugin.parcelize")
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implementation(projects.ui)
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implementation(projects.icons)
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implementation(projects.illustrations)
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implementation(projects.catalog.semantics)
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implementation(libs.androidx.core)
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implementation(libs.androidx.activityCompose)
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implementation(libs.accompanist.systemController)
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implementation(libs.kiwi.navigationComposeTyped)
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baselineProfile(projects.baselineprofile)
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coreLibraryDesugaring(libs.android.desugarJdk)
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debugImplementation(libs.compose.tooling)
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debugImplementation(libs.androidx.customView)
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debugImplementation(libs.androidx.customViewPoolingContainer)
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lintChecks(libs.slack.composeLintChecks)
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lintChecks(project(":lint"))
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lintChecks(projects.lint)
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}

‎catalog/semantics/.gitignore

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/build

‎catalog/semantics/build.gradle.kts

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plugins {
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kotlin("android")
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id("com.android.library")
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id("org.jmailen.kotlinter")
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}
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android {
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namespace = "kiwi.orbit.compose.catalog.semantics"
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compileSdk = libs.versions.compileSdk.get().toInt()
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defaultConfig {
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minSdk = libs.versions.minSdk.get().toInt()
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}
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compileOptions {
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sourceCompatibility = JavaVersion.VERSION_1_8
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targetCompatibility = JavaVersion.VERSION_1_8
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}
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lint {
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abortOnError = true
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warningsAsErrors = true
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}
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}
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kotlinter {
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reporters = arrayOf("json")
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}

‎catalog/semantics/src/main/kotlin/kiwi/orbit/compose/catalog/semantics/AlertScreenSemantics.kt

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package kiwi.orbit.compose.catalog.semantics
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object AlertScreenSemantics {
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const val NormalTabTag = "alert_screen_normal_tab_tag"
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const val SuppressedTabTag = "alert_screen_suppressed_tab_tag"
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const val InlineTabTag = "alert_screen_inline_tab_tag"
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}

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