chore: modernize Flutter examples — null safety, latest APIs, Kotlin DSL Gradle (#148)

* updates * Update Gradle wrapper script to fetch latest version online and allow --version override * chore(analytics_integration): migrate Gradle build scripts to Kotlin DSL Convert Groovy build files to Kotlin DSL and bump Gradle wrapper. * chore(animation_example): migrate Gradle build scripts to Kotlin DSL Convert Groovy build files to Kotlin DSL. * chore(biometrics): migrate Gradle build scripts to Kotlin DSL Convert Groovy build files to Kotlin DSL. * chore(bmi_calculator): test test body * chore(bottom_sheet): test test body * chore(custom_home_drawer): migrate Gradle build scripts to Kotlin DSL Convert Groovy build files to Kotlin DSL and bump Gradle wrapper. * chore(covid19_mobile_app): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(dropdown_button): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(enabling_splash_screen): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(expense_planner): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(firebase_crash_reporting): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(firebase_google_authentication): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(flutter_date_pickers-master): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(getx_counter_app): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(google_signin): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(grid_layout): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(handling_routes): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(image_editor): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(image_from_network): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(infinite_list): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(load_local_image): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(load_local_json): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(lunch_app): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(navigation_drawer): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(news_memes_app): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(persist_key_value): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(push_notifications): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(save_data_locally_with_sqlite): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(scan_qr_code): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(simple_material_app): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(sliver_app_bar_example): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(stateful_widget): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(stateless_widgets): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(statless_counter_app): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(tic_tac_toe): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(tip_calculator): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(todo_list_using_provider): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(unit_testing): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(using_alert_dialog): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(using_bottom_nav_bar): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(using_custom_fonts): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(using_edittext): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(using_expansionpanel): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(using_firebase_db): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(using_gradient): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(using_http_get): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(using_interactiveviewer): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(using_listview): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(using_listwheelscrollview): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(using_platform_adaptive): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore(using_snackbar): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(using_stepper): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(using_tabs): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(using_theme): remove legacy nested android project Delete the redundant nested android/ project directory from the old layout. Also update pubspec.yaml SDK constraints and dependencies. * chore(view_pdf_file): migrate Gradle build scripts to Kotlin DSL Convert Groovy build.gradle/settings.gradle to Kotlin DSL and bump Gradle wrapper. * chore: ignore .trash directory * chore: remove IDE configs and PR template * chore(infinite_list): remove legacy nested android project * refactor(infinite_list): migrate theme to ColorScheme API * refactor(using_theme): migrate to ColorScheme API * refactor(analytics_integration): migrate Firebase Analytics API * refactor(firebase_google_authentication): migrate Google Sign-In API * refactor(covid19_mobile_app): migrate theme and buttons to current API * refactor(covid19_mobile_app): replace bezier_chart with fl_chart * refactor(image_editor): migrate image plugins and button styles * refactor(scan_qr_code): migrate mobile_scanner API * refactor(lunch_app): migrate to null safety * refactor(todo_list_using_provider): migrate to null safety * refactor(unit_testing): migrate to null safety * refactor(using_firebase_db): migrate Firebase Database API * fix(update_gradle_wrapper): edit gradle-wrapper.properties directly * refactor(push_notifications): migrate Firebase Messaging API * refactor(using_http_get): migrate to null safety * refactor(using_listview): migrate to null safety * refactor(using_listwheelscrollview): migrate to null safety * refactor(view_pdf_file): migrate to null safety * refactor(bottom_sheet): migrate to null safety * refactor(stateless_widgets): migrate to null safety * chore: regenerate Gradle wrapper * refactor: move maintenance scripts to Makefile * chore: remove generated and IDE files * fix: migrate image_editor to current plugins * fix: migrate news_memes_app share to share_plus * fix: migrate view_pdf_file to syncfusion pdf viewer * fix: update deprecated APIs * style: remove commented-out code
2026-08-25 01:05:36 +00:00 · 2026-08-17 13:58:51 +02:00
parent 80fe9bed92
commit 8745f7cf5a
2600 changed files with 9278 additions and 58100 deletions
--- a/using_firebase_db/.flutter-plugins-dependencies
+++ b/using_firebase_db/.flutter-plugins-dependencies
@@ -1 +1 @@
-{"info":"This is a generated file; do not edit or check into version control.","plugins":{"ios":[{"name":"firebase_core","path":"/usr/local/Caskroom/flutter/2.8.1/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-0.4.5/","native_build":true,"dependencies":[]},{"name":"firebase_database","path":"/usr/local/Caskroom/flutter/2.8.1/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_database-3.1.6/","native_build":true,"dependencies":["firebase_core"]}],"android":[{"name":"firebase_core","path":"/usr/local/Caskroom/flutter/2.8.1/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-0.4.5/","native_build":true,"dependencies":[]},{"name":"firebase_database","path":"/usr/local/Caskroom/flutter/2.8.1/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_database-3.1.6/","native_build":true,"dependencies":["firebase_core"]}],"macos":[{"name":"firebase_core","path":"/usr/local/Caskroom/flutter/2.8.1/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-0.4.5/","native_build":true,"dependencies":[]}],"linux":[],"windows":[],"web":[{"name":"firebase_core_web","path":"/usr/local/Caskroom/flutter/2.8.1/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core_web-0.1.1+2/","dependencies":[]}]},"dependencyGraph":[{"name":"firebase_core","dependencies":["firebase_core_web"]},{"name":"firebase_core_web","dependencies":[]},{"name":"firebase_database","dependencies":["firebase_core"]}],"date_created":"2022-10-22 21:15:07.075628","version":"3.3.5"}
+{"info":"This is a generated file; do not edit or check into version control.","plugins":{"ios":[{"name":"firebase_core","path":"/Users/nishantsrivastava/.pub-cache/hosted/pub.dev/firebase_core-4.13.0/","native_build":true,"dependencies":[],"dev_dependency":false},{"name":"firebase_database","path":"/Users/nishantsrivastava/.pub-cache/hosted/pub.dev/firebase_database-12.4.7/","native_build":true,"dependencies":["firebase_core"],"dev_dependency":false}],"android":[{"name":"firebase_core","path":"/Users/nishantsrivastava/.pub-cache/hosted/pub.dev/firebase_core-4.13.0/","native_build":true,"dependencies":[],"dev_dependency":false},{"name":"firebase_database","path":"/Users/nishantsrivastava/.pub-cache/hosted/pub.dev/firebase_database-12.4.7/","native_build":true,"dependencies":["firebase_core"],"dev_dependency":false}],"macos":[{"name":"firebase_core","path":"/Users/nishantsrivastava/.pub-cache/hosted/pub.dev/firebase_core-4.13.0/","native_build":true,"dependencies":[],"dev_dependency":false},{"name":"firebase_database","path":"/Users/nishantsrivastava/.pub-cache/hosted/pub.dev/firebase_database-12.4.7/","native_build":true,"dependencies":["firebase_core"],"dev_dependency":false}],"linux":[],"windows":[{"name":"firebase_core","path":"/Users/nishantsrivastava/.pub-cache/hosted/pub.dev/firebase_core-4.13.0/","native_build":true,"dependencies":[],"dev_dependency":false},{"name":"firebase_database","path":"/Users/nishantsrivastava/.pub-cache/hosted/pub.dev/firebase_database-12.4.7/","native_build":true,"dependencies":["firebase_core"],"dev_dependency":false}],"web":[{"name":"firebase_core_web","path":"/Users/nishantsrivastava/.pub-cache/hosted/pub.dev/firebase_core_web-3.10.0/","dependencies":[],"dev_dependency":false},{"name":"firebase_database_web","path":"/Users/nishantsrivastava/.pub-cache/hosted/pub.dev/firebase_database_web-0.2.7+13/","dependencies":["firebase_core_web"],"dev_dependency":false}]},"dependencyGraph":[{"name":"firebase_core","dependencies":["firebase_core_web"]},{"name":"firebase_core_web","dependencies":[]},{"name":"firebase_database","dependencies":["firebase_core","firebase_database_web"]},{"name":"firebase_database_web","dependencies":["firebase_core","firebase_core_web"]}],"date_created":"2026-08-16 19:49:25.655397","version":"3.47.0","swift_package_manager_enabled":{"ios":false,"macos":false}}
--- a/using_firebase_db/android/app/build.gradle
+++ b/using_firebase_db/android/app/build.gradle
@@ -1,62 +0,0 @@
-def localProperties = new Properties()
-def localPropertiesFile = rootProject.file('local.properties')
-if (localPropertiesFile.exists()) {
-    localPropertiesFile.withReader('UTF-8') { reader ->
-        localProperties.load(reader)
-    }
-}
-
-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) {
-    flutterVersionCode = '1'
-}
-
-def flutterVersionName = localProperties.getProperty('flutter.versionName')
-if (flutterVersionName == null) {
-    flutterVersionName = '1.0'
-}
-
-apply plugin: 'com.android.application'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
-
-android {
-    compileSdkVersion 29
-
-    lintOptions {
-        disable 'InvalidPackage'
-    }
-
-    defaultConfig {
-        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId "github.nisrulz.using_firebase_db"
-        minSdkVersion 16
-        targetSdkVersion 29
-        versionCode flutterVersionCode.toInteger()
-        versionName flutterVersionName
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
-    }
-
-    buildTypes {
-        release {
-            // TODO: Add your own signing config for the release build.
-            // Signing with the debug keys for now, so `flutter run --release` works.
-            signingConfig signingConfigs.debug
-        }
-    }
-}
-
-flutter {
-    source '../..'
-}
-
-dependencies {
-    testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'androidx.test:runner:1.1.1'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
-}
-apply plugin: 'com.google.gms.google-services'
--- a/using_firebase_db/android/app/build.gradle.kts
+++ b/using_firebase_db/android/app/build.gradle.kts
@@ -0,0 +1,43 @@
+plugins {
+    id("com.android.application")
+    id("org.jetbrains.kotlin.android")
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id("dev.flutter.flutter-gradle-plugin")
+}
+
+android {
+    namespace = "github.nisrulz.using_firebase_db"
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    defaultConfig {
+        applicationId = "github.nisrulz.using_firebase_db"
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
+    }
+
+    buildTypes {
+        release {
+            signingConfig = signingConfigs.getByName("debug")
+        }
+    }
+}
+
+apply(plugin = "com.google.gms.google-services")
+
+kotlin {
+    compilerOptions {
+        jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
+    }
+}
+
+flutter {
+    source = "../.."
+}
--- a/using_firebase_db/android/app/src/main/AndroidManifest.xml
+++ b/using_firebase_db/android/app/src/main/AndroidManifest.xml
@@ -1,5 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="github.nisrulz.using_firebase_db">
+>

    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
         calls FlutterMain.startInitialization(this); in its onCreate method.
--- a/using_firebase_db/android/build.gradle
+++ b/using_firebase_db/android/build.gradle
@@ -1,30 +0,0 @@
-buildscript {
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.3'
-        classpath 'com.google.gms:google-services:4.3.2'
-    }
-}
-
-allprojects {
-    repositories {
-        google()
-        mavenCentral()
-    }
-}
-
-rootProject.buildDir = '../build'
-subprojects {
-    project.buildDir = "${rootProject.buildDir}/${project.name}"
-}
-subprojects {
-    project.evaluationDependsOn(':app')
-}
-
-task clean(type: Delete) {
-    delete rootProject.buildDir
-}
--- a/using_firebase_db/android/build.gradle.kts
+++ b/using_firebase_db/android/build.gradle.kts
@@ -0,0 +1,24 @@
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+val newBuildDir: Directory =
+    rootProject.layout.buildDirectory
+        .dir("../../build")
+        .get()
+rootProject.layout.buildDirectory.value(newBuildDir)
+
+subprojects {
+    val newSubprojectBuildDir: Directory = newBuildDir.dir(project.name)
+    project.layout.buildDirectory.value(newSubprojectBuildDir)
+}
+subprojects {
+    project.evaluationDependsOn(":app")
+}
+
+tasks.register<Delete>("clean") {
+    delete(rootProject.layout.buildDirectory)
+}
--- a/using_firebase_db/android/gradle.properties
+++ b/using_firebase_db/android/gradle.properties
@@ -1,3 +1,4 @@
-org.gradle.jvmargs=-Xmx1536M
-android.enableJetifier=true
+org.gradle.jvmargs=-Xmx8G -XX:MaxMetaspaceSize=4G -XX:ReservedCodeCacheSize=512m -XX:+HeapDumpOnOutOfMemoryError
 android.useAndroidX=true
+android.newDsl=false
+android.builtInKotlin=false
--- a/using_firebase_db/android/gradle/wrapper/gradle-wrapper.properties
+++ b/using_firebase_db/android/gradle/wrapper/gradle-wrapper.properties
@@ -1,7 +1,9 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.7.0-bin.zip
 networkTimeout=10000
+retries=0
+retryBackOffMs=500
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
--- a/using_firebase_db/android/settings.gradle
+++ b/using_firebase_db/android/settings.gradle
@@ -1,15 +0,0 @@
-include ':app'
-
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
-
-def plugins = new Properties()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
-
-plugins.each { name, path ->
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
-    include ":$name"
-    project(":$name").projectDir = pluginDirectory
-}
--- a/using_firebase_db/android/settings.gradle.kts
+++ b/using_firebase_db/android/settings.gradle.kts
@@ -0,0 +1,27 @@
+pluginManagement {
+    val flutterSdkPath =
+        run {
+            val properties = java.util.Properties()
+            file("local.properties").inputStream().use { properties.load(it) }
+            val flutterSdkPath = properties.getProperty("flutter.sdk")
+            require(flutterSdkPath != null) { "flutter.sdk not set in local.properties" }
+            flutterSdkPath
+        }
+
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id("dev.flutter.flutter-plugin-loader") version "1.0.0"
+    id("com.android.application") version "9.1.0" apply false
+    id("org.jetbrains.kotlin.android") version "2.2.20" apply false
+    id("com.google.gms.google-services") version "4.4.2" apply false
+}
+
+include(":app")
--- a/using_firebase_db/ios/Flutter/ephemeral/flutter_lldb_helper.py
+++ b/using_firebase_db/ios/Flutter/ephemeral/flutter_lldb_helper.py
@@ -0,0 +1,32 @@
+#
+# Generated file, do not edit.
+#
+
+import lldb
+
+def handle_new_rx_page(frame: lldb.SBFrame, bp_loc, extra_args, intern_dict):
+    """Intercept NOTIFY_DEBUGGER_ABOUT_RX_PAGES and touch the pages."""
+    base = frame.register["x0"].GetValueAsAddress()
+    page_len = frame.register["x1"].GetValueAsUnsigned()
+
+    # Note: NOTIFY_DEBUGGER_ABOUT_RX_PAGES will check contents of the
+    # first page to see if handled it correctly. This makes diagnosing
+    # misconfiguration (e.g. missing breakpoint) easier.
+    data = bytearray(page_len)
+    data[0:8] = b'IHELPED!'
+
+    error = lldb.SBError()
+    frame.GetThread().GetProcess().WriteMemory(base, data, error)
+    if not error.Success():
+        print(f'Failed to write into {base}[+{page_len}]', error)
+        return
+
+def __lldb_init_module(debugger: lldb.SBDebugger, _):
+    target = debugger.GetDummyTarget()
+    # Caveat: must use BreakpointCreateByRegEx here and not
+    # BreakpointCreateByName. For some reasons callback function does not
+    # get carried over from dummy target for the later.
+    bp = target.BreakpointCreateByRegex("^NOTIFY_DEBUGGER_ABOUT_RX_PAGES$")
+    bp.SetScriptCallbackFunction('{}.handle_new_rx_page'.format(__name__))
+    bp.SetAutoContinue(True)
+    print("-- LLDB integration loaded --")
--- a/using_firebase_db/ios/Flutter/ephemeral/flutter_lldbinit
+++ b/using_firebase_db/ios/Flutter/ephemeral/flutter_lldbinit
@@ -0,0 +1,5 @@
+#
+# Generated file, do not edit.
+#
+
+command script import --relative-to-command-file flutter_lldb_helper.py
--- a/using_firebase_db/ios/Flutter/ephemeral/flutter_native_integration.env
+++ b/using_firebase_db/ios/Flutter/ephemeral/flutter_native_integration.env
@@ -0,0 +1,12 @@
+FLUTTER_ROOT=/opt/homebrew/share/flutter
+FLUTTER_APPLICATION_PATH=/Users/nishantsrivastava/Personal/Workspaces/github/flutter/flutter-examples/using_firebase_db
+FLUTTER_FRAMEWORK_SWIFT_PACKAGE_PATH=/Users/nishantsrivastava/Personal/Workspaces/github/flutter/flutter-examples/using_firebase_db/ios/Flutter/ephemeral/Packages/.packages/FlutterFramework
+COCOAPODS_PARALLEL_CODE_SIGN=true
+FLUTTER_TARGET=lib/main.dart
+FLUTTER_BUILD_DIR=build
+FLUTTER_BUILD_NAME=1.0.0
+FLUTTER_BUILD_NUMBER=1
+DART_OBFUSCATION=false
+TRACK_WIDGET_CREATION=true
+TREE_SHAKE_ICONS=false
+PACKAGE_CONFIG=.dart_tool/package_config.json
--- a/using_firebase_db/lib/main.dart
+++ b/using_firebase_db/lib/main.dart
@@ -4,13 +4,12 @@ import 'package:firebase_database/firebase_database.dart';
 import 'package:flutter/material.dart';

 class Note {
-  String id;
-  String content;
-  String createdOn;
+  late String id;
+  late String content;
+  late String createdOn;

-  Note(content) {
-    this.content = content;
-    this.createdOn = DateTime.now().toString();
+  Note(this.content) {
+    createdOn = DateTime.now().toString();
  }
 }

@@ -30,7 +29,7 @@ class MyApp extends StatelessWidget {
 }

 class MyHomePage extends StatefulWidget {
-  MyHomePage({Key key, this.title}) : super(key: key);
+  MyHomePage({super.key, required this.title});

  final String title;
  @override
@@ -38,16 +37,15 @@ class MyHomePage extends StatefulWidget {
 }

 class _MyHomePageState extends State<MyHomePage> {
-  final notesRef = FirebaseDatabase.instance.reference().child('notes');
+  final notesRef = FirebaseDatabase.instance.ref().child('notes');
  final inputController = TextEditingController();
-  StreamSubscription<Event> _noteAddedStream;
-  var items;
+  late StreamSubscription<DatabaseEvent> _noteAddedStream;
+  List<Note> items = [];

  @override
  void initState() {
    super.initState();

-    items = new List();
    _noteAddedStream =
        notesRef.orderByChild("created_on").onChildAdded.listen(_onNoteAdded);
  }
@@ -66,11 +64,12 @@ class _MyHomePageState extends State<MyHomePage> {

  // Fired whenever the database sees a new child under the notes
  // database reference
-  void _onNoteAdded(Event event) {
+  void _onNoteAdded(DatabaseEvent event) {
    setState(() {
-      var note = Note(event.snapshot.value["content"]);
-      note.id = event.snapshot.key;
-      note.createdOn = event.snapshot.value["created_on"];
+      final value = event.snapshot.value as Map;
+      var note = Note(value["content"] as String);
+      note.id = event.snapshot.key!;
+      note.createdOn = value["created_on"] as String;
      items.add(note);
    });
  }
--- a/using_firebase_db/pubspec.yaml
+++ b/using_firebase_db/pubspec.yaml
@@ -14,7 +14,7 @@ description: A new Flutter project.
 version: 1.0.0+1

 environment:
-  sdk: ">=2.12.0 <3.0.0"
+  sdk: ">=3.0.0 <4.0.0"

 dependencies:
  flutter:
@@ -22,8 +22,8 @@ dependencies:

  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^0.1.2
-  firebase_database: ^3.0.7
+  cupertino_icons: ^1.0.9
+  firebase_database: ^12.4.7

 dev_dependencies:
  flutter_test: