init

benchmark/.gitignore

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+/build

benchmark/build.gradle.kts

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+import com.android.build.api.dsl.ManagedVirtualDevice
+
+kotlin {
+    jvmToolchain(21)
+}
+plugins {
+    alias(libs.plugins.android.test)
+    alias(libs.plugins.kotlin.android)
+}
+
+android {
+    namespace = "cc.n0th1ng.benchmark"
+    compileSdk = 36
+
+    defaultConfig {
+        minSdk = 24
+        targetSdk = 36
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunnerArguments["androidx.compose.ui.test.tagsAsResourceId"] = "true"
+    }
+
+    testOptions.managedDevices.devices {
+        create<ManagedVirtualDevice>("pixel6Api31") {
+            device = "Pixel 6"
+            apiLevel = 31
+            systemImageSource = "aosp"
+        }
+    }
+
+    buildTypes {
+        create("benchmark") {
+            isDebuggable = true
+            signingConfig = getByName("debug").signingConfig
+            matchingFallbacks += listOf("release")
+        }
+    }
+
+    targetProjectPath = ":app"
+    experimentalProperties["android.experimental.self-instrumenting"] = true
+}
+
+dependencies {
+    implementation(libs.androidx.junit)
+    implementation(libs.androidx.espresso.core)
+    implementation(libs.androidx.uiautomator)
+    implementation(libs.androidx.benchmark.macro.junit4)
+}
+
+androidComponents {
+    beforeVariants(selector().all()) {
+        it.enable = it.buildType == "benchmark"
+    }
+}

benchmark/src/main/AndroidManifest.xml

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+<manifest />

benchmark/src/main/java/cc/n0th1ng/benchmark/BaselineProfileGenerator.kt

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+package cc.n0th1ng.benchmark
+
+import android.os.Build
+import androidx.annotation.RequiresApi
+import androidx.benchmark.macro.junit4.BaselineProfileRule
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.internal.runner.junit4.AndroidJUnit4ClassRunner
+import androidx.test.uiautomator.By
+import androidx.test.uiautomator.Direction
+import androidx.test.uiautomator.Until
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4ClassRunner::class)
+class BaselineProfileGenerator {
+
+    @RequiresApi(Build.VERSION_CODES.P)
+    @get:Rule
+    val rule = BaselineProfileRule()
+
+    @RequiresApi(Build.VERSION_CODES.P)
+    @Test
+    fun startup() = rule.collect(
+        maxIterations = 1,
+        packageName = "cc.n0th1ng.tripmoney",
+        profileBlock = {
+            device.executeShellCommand(
+                "rm -rf /data/data/cc.n0th1ng.tripmoney/files/datastore/"
+            )
+            startActivityAndWait()
+            device.wait(Until.hasObject(By.text("Włochy")), 10_000)
+            device.findObject(By.text("Włochy")).click()
+            val isVisible = device.wait(Until.hasObject(By.desc("expensesList")), 10_000)
+            assert(isVisible)
+            val expensesList = device.findObject(By.desc("expensesList"))
+            expensesList.setGestureMargin(device.displayWidth / 5)
+            expensesList.fling(Direction.DOWN)
+            expensesList.fling(Direction.UP)
+            expensesList.fling(Direction.DOWN)
+            expensesList.fling(Direction.UP)
+        }
+    )
+
+
+}

benchmark/src/main/java/cc/n0th1ng/benchmark/ExampleStartupBenchmark.kt

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+package cc.n0th1ng.benchmark
+
+import androidx.benchmark.macro.CompilationMode
+import androidx.benchmark.macro.StartupMode
+import androidx.benchmark.macro.StartupTimingMetric
+import androidx.benchmark.macro.junit4.MacrobenchmarkRule
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.uiautomator.By
+import androidx.test.uiautomator.Until
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+/**
+ * This is an example startup benchmark.
+ *
+ * It navigates to the device's home screen, and launches the default activity.
+ *
+ * Before running this benchmark:
+ * 1) switch your app's active build variant in the Studio (affedaggcts Studio runs only)
+ * 2) add `<profileable android:shell="true" />` to your app's manifest, within the `<application>` tag
+ *
+ * Run this benchmark from Studio to see startup measurements, and captured system traces
+ * for investigating your app's performance.
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleStartupBenchmark {
+    @get:Rule
+    val benchmarkRule = MacrobenchmarkRule()
+
+    @Test
+    fun startup() = benchmarkRule.measureRepeated(
+        packageName = "cc.n0th1ng.tripmoney",
+        metrics = listOf(StartupTimingMetric()),
+        iterations = 5,
+        startupMode = StartupMode.COLD
+    ) {
+        pressHome()
+        startActivityAndWait()
+        device.wait(Until.hasObject(By.pkg("cc.n0th1ng.tripmoney")), 10_000)
+        device.waitForIdle()
+    }
+}