Code for Compose Performance Codelab

PerformanceCodelab/.gitignore

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+*.iml
+.gradle
+local.properties
+.idea/*
+!.idea/copyright
+# Keep the code styles.
+!/.idea/codeStyles
+/.idea/codeStyles/*
+!/.idea/codeStyles/Project.xml
+!/.idea/codeStyles/codeStyleConfig.xml
+
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx

PerformanceCodelab/README.md

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+# Performance with Jetpack Compose Codelab
+
+The folder contains the source code for the Performance with Jetpack Compose codelab.
+
+## Formatting
+To run spotless use the following command
+```
+./gradlew spotlessApply
+```
+
+## License
+```
+Copyright 2024 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+```

PerformanceCodelab/app/.gitignore

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+/build

PerformanceCodelab/app/build.gradle.kts

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+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+plugins {
+    alias(libs.plugins.com.android.application)
+    alias(libs.plugins.org.jetbrains.kotlin.android)
+    alias(libs.plugins.androidx.baselineprofile)
+    alias(libs.plugins.compose)
+}
+
+android {
+    namespace = "com.compose.performance"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.compose.performance"
+        minSdk = 21
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables {
+            useSupportLibrary = true
+        }
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = true
+            isProfileable = true
+            isShrinkResources = true
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+        isCoreLibraryDesugaringEnabled = true
+    }
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_17.toString()
+    }
+    buildFeatures {
+        compose = true
+    }
+    packaging {
+        resources {
+            excludes += "/META-INF/{AL2.0,LGPL2.1}"
+        }
+    }
+}
+
+composeCompiler {
+    // This settings enables strong-skipping mode for all module in this project.
+    // As an effect, Compose can skip a composable even if it's unstable by comparing it's instance equality (===).
+    // TODO Codelab task: Enable Strong Skipping Mode
+    enableStrongSkippingMode = false
+
+    // TODO Codelab task: Enable Stability Configuration file
+}
+
+dependencies {
+    coreLibraryDesugaring(libs.desugar.jdk.libs)
+    implementation(libs.kotlinx.datetime)
+    implementation(libs.core.ktx)
+    implementation(libs.lifecycle.runtime.ktx)
+    implementation(libs.activity.compose)
+    implementation(platform(libs.compose.bom))
+    implementation(libs.ui)
+    implementation(libs.ui.graphics)
+    implementation(libs.ui.tooling.preview)
+    implementation(libs.material3)
+    implementation(libs.androidx.material.icons.core)
+    implementation(libs.androidx.lifecycle.viewmodel.compose)
+    implementation(libs.profileinstaller)
+    implementation(libs.androidx.tracing.ktx)
+
+    // TODO Codelab task: Add androidx.runtime-tracing dependency to enable Composition Tracing
+
+    implementation(libs.coil.compose)
+    implementation(libs.androidx.media3.exoplayer)
+    implementation(libs.androidx.media3.ui)
+
+    baselineProfile(project(":measure"))
+
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.androidx.test.ext.junit)
+    androidTestImplementation(libs.espresso.core)
+    androidTestImplementation(platform(libs.compose.bom))
+    androidTestImplementation(libs.ui.test.junit4)
+
+    debugImplementation(libs.ui.tooling)
+    debugImplementation(libs.ui.test.manifest)
+}

PerformanceCodelab/app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
+
+# Please add these rules to your existing keep rules in order to suppress warnings.
+# This is generated automatically by the Android Gradle plugin.
+-dontwarn kotlinx.serialization.KSerializer
+-dontwarn kotlinx.serialization.Serializable
+
+-dontobfuscate

PerformanceCodelab/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.ComposePerformance"
+        tools:targetApi="31">
+        <activity
+            android:name="com.compose.performance.MainActivity"
+            android:exported="true"
+            android:theme="@style/Theme.ComposePerformance">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>