chore: migrate Flutter SDK from v3.7 to v3.19

.github/workflows/unit-tests.yml

@@ -16,7 +16,7 @@ jobs:
         uses: subosito/flutter-action@v2
         with:
           channel: 'stable'
-          flutter-version: '3.7.6'
+          flutter-version: '3.19.6'
       - name: Install Protoc
         uses: arduino/setup-protoc@v1
         with:
@@ -25,7 +25,7 @@ jobs:
       - name: Create ephemeral files
         run: |
           flutter config --no-analytics &&
-          dart pub global activate protoc_plugin ^20.0.1 &&
+          dart pub global activate protoc_plugin ^21.1.2 &&
           export PATH="$PATH:$HOME/.pub-cache/bin" &&
           make flutter/prepare
       - name: Run Flutter tests

datasets/docker/Dockerfile

@@ -26,7 +26,7 @@ RUN apt-get update && apt-get upgrade -y && apt-get autoremove -y && \
     apt-get install -y --no-install-recommends \
        python3 python3-pip libpython3.6-dev python3.6-venv libgl1-mesa-glx libglib2.0 cython3 gcc make curl unzip libc++1-8 \
        git locales openssh-client ca-certificates tar gzip parallel \
-       zip bzip2 gnupg wget python3-six python3-pip libncurses5 openjdk-11-jdk-headless clang-format-10 golang-1.13-go build-essential
+       zip bzip2 gnupg wget python3-six python3-pip libncurses5 openjdk-17-jdk-headless clang-format-10 golang-1.13-go build-essential
 
 RUN pip3 install pip==21.3.1 setuptools==31.0.1
 RUN pip3 install tensorflow-cpu==1.15

docs/build-and-run.md

@@ -188,7 +188,7 @@ Visual Studio projects generated by Flutter don't have any backend files,
 but you can drag and drop files from `cpp` folders to open them in Visual Studio and set breakpoints.
 
 Run `flutter build windows` to build release folder with the app.
-The release folder will be located in `flutter/build/windows/runner/Release/`.
+The release folder will be located in `flutter/build/windows/x64/runner/Release/`.
 To create redistributable copy the following files into the application directory:
 
 ```text

docs/environment-setup/env-setup-android.md

@@ -26,7 +26,7 @@ These steps are required to build native libs only.
     gnupg \
     make \
     python3 python3-pip \
-    openjdk-11-jdk-headless \
+    openjdk-17-jdk-headless \
     protobuf-compiler
   ```
 
@@ -75,7 +75,7 @@ Flutter requires native libs so you must complete [Setting up Bazel on Ubuntu](#
   * Install Flutter:
 
     ```bash
-    mkdir -p ~/tools && cd ~/tools && curl https://storage.googleapis.com/flutter_infra_release/releases/stable/linux/flutter_linux_3.7.6-stable.tar.xz | tar Jxf -
+    mkdir -p ~/tools && cd ~/tools && curl https://storage.googleapis.com/flutter_infra_release/releases/stable/linux/flutter_linux_3.19.6-stable.tar.xz | tar Jxf -
     ```
 
   * Add flutter binary folders to path: `export PATH=$PATH:~/tools/flutter/bin:~/.pub-cache/bin`  
@@ -91,7 +91,7 @@ Flutter requires native libs so you must complete [Setting up Bazel on Ubuntu](#
 
     You will need to restart your WSL instance to apply changes.  
     Run `wsl --shutdown` in Windows, and then reopen WSL.
-* Enable protobuf plugin: `dart pub global activate protoc_plugin ^20.0.1`
+* Enable protobuf plugin: `dart pub global activate protoc_plugin ^21.1.2`
 
 * Install dependencies via sdkmanager, accept licenses for dependencies:
 

docs/environment-setup/env-setup-ios.md

@@ -25,36 +25,36 @@ Otherwise, you can get errors about missing pods
   * Download flutter repo:
 
     ```bash
-    mkdir -p ~/tools && git clone --branch 3.7.6 --depth 1 https://github.com/flutter/flutter.git ~/tools/flutter
+    mkdir -p ~/tools && git clone --branch 3.19.6 --depth 1 https://github.com/flutter/flutter.git ~/tools/flutter
     ```
 
   * Add flutter binary folders to path: `export PATH="$PATH:$HOME/tools/flutter/bin:$HOME/.pub-cache/bin"`  
     If you use zsh: `echo export PATH="\$PATH:\$HOME/tools/flutter/bin:\$HOME/.pub-cache/bin" >>~/.zshrc`
-  * Enable protobuf plugin: `dart pub global activate protoc_plugin ^20.0.1`
+  * Enable protobuf plugin: `dart pub global activate protoc_plugin ^21.1.2`
 * Go to `ios` directory and install pods: `pod install`
 
 ## Tested environment
 
 The app was built and tested successfully in this environment:
 
 ```shell
-macOS 13.2.1
-Xcode 14.2
+macOS 14.4.1
+Xcode 15.4
 
 $ flutter --version
-Flutter 3.7.6 • channel stable • https://github.com/flutter/flutter.git
-Framework • revision 12cb4eb7a0 (11 days ago) • 2023-03-01 10:29:26 -0800
-Engine • revision ada363ee93
-Tools • Dart 2.19.3 • DevTools 2.20.1
+Flutter 3.19.6 • channel stable • https://github.com/flutter/flutter.git
+Framework • revision 54e66469a9 (4 weeks ago) • 2024-04-17 13:08:03 -0700
+Engine • revision c4cd48e186
+Tools • Dart 3.3.4 • DevTools 2.31.1
 
 $ bazel --version
-bazel 5.3.2
+bazel 6.3.2
 
 $ protoc --version
-libprotoc 3.21.9
+libprotoc 23.2
 
 $ pod --version
-1.11.3
+1.15.2
 
 $ python3 --version
 Python 3.9.16

docs/environment-setup/env-setup-windows.md

@@ -25,7 +25,7 @@ However, using Chocolatey greatly simplifies installation.
   * `choco install -y msys2`
   * `choco install -y flutter`
   * `choco install -y protoc`
-  * `dart pub global activate protoc_plugin ^20.0.1`
+  * `dart pub global activate protoc_plugin ^21.1.2`
 * Configure python
   * You must have command `python3` in your PATH.  
   Python installed via Chocolatey provides only `python.exe` file, so you will need to create `python3` yourself.  
@@ -40,7 +40,7 @@ However, using Chocolatey greatly simplifies installation.
 * Set python path env, paths must use forward slashes
 * Install python dependencies: `python3 -m pip install --user numpy absl-py`
 * Add MSYS2 bin folder to PATH: `C:/tools/msys64/usr/bin`
-* Enable protobuf plugin: `dart pub global activate protoc_plugin ^20.0.1`
+* Enable protobuf plugin: `dart pub global activate protoc_plugin ^21.1.2`
 * Add dart pub cache bin folder to PATH: `%LOCALAPPDATA%/Pub/Cache/bin`
 * Turn on the developer mode in Windows settings.
   * This option should be located in `Update & Security` → `For developers`.

flutter/android/app/build.gradle

@@ -1,3 +1,11 @@
+plugins {
+    id "com.android.application"
+    id "kotlin-android"
+    id "dev.flutter.flutter-gradle-plugin"
+    id 'com.google.gms.google-services'
+    id 'com.google.firebase.crashlytics'
+}
+
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
@@ -6,31 +14,18 @@ if (localPropertiesFile.exists()) {
     }
 }
 
-def flutterRoot = localProperties.getProperty('flutter.sdk')
-if (flutterRoot == null) {
-    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
-}
-
 def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
 if (flutterVersionCode == null) {
-    throw new GradleException("versionCode not found. Define flutter.versionCode in the local.properties file.")
+    throw new RuntimeException("versionCode not found. Define flutter.versionCode in the local.properties file.")
 }
 
 def flutterVersionName = localProperties.getProperty('flutter.versionName')
 if (flutterVersionName == null) {
-    throw new GradleException("versionName not found. Define flutter.versionName in the local.properties file.")
+    throw new RuntimeException("versionName not found. Define flutter.versionName in the local.properties file.")
 }
 
-apply plugin: 'com.android.application'
-// START: FlutterFire Configuration
-apply plugin: 'com.google.gms.google-services'
-apply plugin: 'com.google.firebase.crashlytics'
-// END: FlutterFire Configuration
-apply plugin: 'kotlin-android'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
-
 android {
-    compileSdkVersion 33
+    compileSdkVersion 34
 
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
@@ -54,14 +49,14 @@ android {
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 
-   signingConfigs {
-       release {
-           keyAlias System.env['SIGNING_KEY_ALIAS']
-           keyPassword System.env['SIGNING_KEY_PASSWORD']
-           storeFile System.env['SIGNING_STORE_FILE'] ? file(System.env['SIGNING_STORE_FILE']) : null
-           storePassword System.env['SIGNING_STORE_PASSWORD']
-       }
-   }
+    signingConfigs {
+        release {
+            keyAlias System.env['SIGNING_KEY_ALIAS']
+            keyPassword System.env['SIGNING_KEY_PASSWORD']
+            storeFile System.env['SIGNING_STORE_FILE'] ? file(System.env['SIGNING_STORE_FILE']) : null
+            storePassword System.env['SIGNING_STORE_PASSWORD']
+        }
+    }
 
     buildTypes {
         release {
@@ -92,7 +87,6 @@ flutter {
 }
 
 dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test:runner:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

flutter/android/build.gradle

@@ -1,20 +1,3 @@
-buildscript {
-    ext.kotlin_version = '1.8.22'
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:7.1.2'
-        // START: FlutterFire Configuration
-        classpath 'com.google.gms:google-services:4.3.10'
-        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.8.1'
-        // END: FlutterFire Configuration
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-    }
-}
-
 allprojects {
     repositories {
         google()
@@ -28,6 +11,6 @@ subprojects {
     project.evaluationDependsOn(':app')
 }
 
-task clean(type: Delete) {
+tasks.register("clean", Delete) {
     delete rootProject.buildDir
 }

flutter/android/docker/Dockerfile

@@ -6,7 +6,7 @@ FROM ubuntu:20.04
 # JDK package downloads ~500 MB from slow mirrors, which can take a lot of time,
 #   so a separate layer for it makes image rebuild faster in case we change any other dependencies.
 RUN apt-get update >/dev/null && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-    openjdk-11-jdk-headless && \
+    openjdk-17-jdk-headless && \
     rm -rf /var/lib/apt/lists/*
 RUN apt-get update >/dev/null && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
     build-essential \
@@ -19,6 +19,7 @@ RUN apt-get update >/dev/null && DEBIAN_FRONTEND=noninteractive apt-get install
     make \
     protobuf-compiler \
     python3 \
+    python3-dev \
     python3-pip && \
     rm -rf /var/lib/apt/lists/*
 
@@ -40,9 +41,11 @@ RUN yes | sdkmanager --licenses >/dev/null
 RUN yes | sdkmanager \
     "platform-tools" \
     "build-tools;30.0.3" \
+    "build-tools;34.0.0" \
     "platforms;android-29" \
     "platforms;android-31" \
-    "platforms;android-33"
+    "platforms;android-33" \
+    "platforms;android-34"
 # Install NDK in a separate layer to decrease max layer size.
 RUN yes | sdkmanager "ndk;25.2.9519653"
 ENV ANDROID_NDK_ROOT=$ANDROID_SDK_ROOT/ndk/25.2.9519653
@@ -54,18 +57,18 @@ WORKDIR $HOME
 
 ENV PUB_CACHE=$HOME/.cache/.pub-cache
 ENV PATH=$PATH:$HOME/flutter/bin:$HOME/flutter/bin/cache/dart-sdk/bin:$PUB_CACHE/bin
-RUN git clone --branch "3.7.6" --single-branch --depth 1 https://github.com/flutter/flutter.git $HOME/flutter
+RUN git clone --branch "3.19.6" --single-branch --depth 1 https://github.com/flutter/flutter.git $HOME/flutter
 RUN git config --global --add safe.directory $HOME/flutter
 RUN flutter config --no-analytics && dart --disable-analytics
 RUN flutter doctor -v
-RUN dart pub global activate protoc_plugin ^20.0.1 && chmod --recursive a=u $PUB_CACHE
+RUN dart pub global activate protoc_plugin ^21.1.2 && chmod --recursive a=u $PUB_CACHE
 
 RUN mkdir -p $HOME/.cache/.gradle
 ENV GRADLE_USER_HOME=$HOME/.cache/.gradle
 ENV ANDROID_SDK_HOME=$HOME/.cache/.android
 
 RUN mkdir $ANDROID_SDK_HOME && \
-    PASSWD=$(pwgen -s -y 20 1) && keytool -genkey -v -keystore $ANDROID_SDK_HOME/debug.keystore \
+    PASSWD=$(pwgen -s -y 20 1) && keytool -genkey -v -keyalg RSA -keystore $ANDROID_SDK_HOME/debug.keystore \
     -storepass $PASSWD -alias androiddebugkey -keypass $PASSWD -dname "CN=Android Debug,O=Android,C=US"
 
 # Git repo will be mounted at '/image-workdir/project'

flutter/android/gradle/wrapper/gradle-wrapper.properties

@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.3-all.zip

flutter/android/settings.gradle

@@ -1,11 +1,27 @@
-include ':app'
+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        file("local.properties").withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }()
 
-def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
-def properties = new Properties()
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
 
-assert localPropertiesFile.exists()
-localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
 
-def flutterSdkPath = properties.getProperty("flutter.sdk")
-assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "7.3.0" apply false
+    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
+    id "com.google.gms.google-services" version "4.4.0" apply false
+    id "com.google.firebase.crashlytics" version "2.9.9" apply false
+}
+
+include ":app"

flutter/flutter.mk

@@ -137,9 +137,9 @@ flutter/update-splash-screen:
 
 .PHONY: flutter/l10n
 flutter/l10n:
-	flutter --no-version-check gen-l10n \
-		--arb-dir=flutter/lib/l10n \
-		--output-dir=flutter/lib/localizations \
+	cd flutter && flutter --no-version-check gen-l10n \
+		--arb-dir=lib/l10n \
+		--output-dir=lib/localizations \
 		--template-arb-file=app_en.arb \
 		--output-localization-file=app_localizations.dart \
 		--no-synthetic-package

flutter/integration_test/expected_accuracy.dart

@@ -31,8 +31,8 @@ const Map<String, Interval> _imageClassificationV2 = {
   'cpu': Interval(min: 0.88, max: 0.91),
   'npu': Interval(min: 0.88, max: 0.91),
   'tpu': Interval(min: 0.88, max: 0.91),
-  'ane': Interval(min: 0.79, max: 0.91),
-  'cpu&gpu&ane': Interval(min: 0.79, max: 0.91),
+  'ane': Interval(min: 0.69, max: 0.91),
+  'cpu&gpu&ane': Interval(min: 0.69, max: 0.91),
   'snpe_dsp': Interval(min: 0.88, max: 0.91),
   'psnpe_dsp': Interval(min: 0.88, max: 0.91),
   'neuron-mdla': Interval(min: 0.79, max: 0.81),

flutter/integration_test/expected_throughput.dart

@@ -43,7 +43,7 @@ const Map<String, Map<String, Interval>> _imageClassification = {
     _kIphoneOnGitHubAction: Interval(min: 1, max: 12),
   },
   _kPixelBackend: {
-    _kPixel6: Interval(min: 800, max: 1200),
+    _kPixel6: Interval(min: 700, max: 1200),
   },
   _kQtiBackend: {
     _kS22Ultra: Interval(min: 1600, max: 2400),
@@ -83,7 +83,7 @@ const Map<String, Map<String, Interval>> _objectDetection = {
     _kCloudBuildX28: Interval(min: 3.5, max: 8),
     _kRyzen5600: Interval(min: 14, max: 22),
     _kPixel5: Interval(min: 40, max: 60),
-    _kPixel6: Interval(min: 200, max: 450),
+    _kPixel6: Interval(min: 100, max: 450),
     _kIphoneOnGitHubAction: Interval(min: 0.5, max: 4),
     _kIphoneOnMacbookM1: Interval(min: 9, max: 16),
   },
@@ -127,8 +127,8 @@ const Map<String, Map<String, Interval>> _imageSegmentationV2 = {
 
 const Map<String, Map<String, Interval>> _naturalLanguageProcessing = {
   _kTFLiteBackend: {
-    _kCloudBuildX23: Interval(min: 0.7, max: 1.1),
-    _kCloudBuildX28: Interval(min: 0.5, max: 1.3),
+    _kCloudBuildX23: Interval(min: 0.7, max: 1.2),
+    _kCloudBuildX28: Interval(min: 0.5, max: 1.4),
     _kRyzen5600: Interval(min: 2.8, max: 3.2),
     _kPixel5: Interval(min: 2.3, max: 3.0),
     _kPixel6: Interval(min: 2, max: 75),

flutter/ios/Flutter/AppFrameworkInfo.plist

@@ -21,6 +21,6 @@
   <key>CFBundleVersion</key>
   <string>1.0</string>
   <key>MinimumOSVersion</key>
-  <string>11.0</string>
+  <string>12.0</string>
 </dict>
 </plist>