chore: version update

Author: PeterHdd

firebase_database_tutorial/lib/home.dart

@@ -2,8 +2,8 @@ import 'package:firebase_database/firebase_database.dart';
 import 'package:flutter/material.dart';
 
 class Home extends StatefulWidget {
- Home({Key key, this.title}) : super(key: key);
- final String title;
+ Home({Key? key, this.title}) : super(key: key);
+ final String? title;
 
  @override
  _HomeState createState() => _HomeState();
@@ -17,14 +17,14 @@ class _HomeState extends State<Home> {
  Widget build(BuildContext context) {
  return Scaffold(
  appBar: AppBar(
- title: Text(widget.title),
+ title: Text(widget.title!),
  ),
  body: FutureBuilder(
  future: dbRef.once(),
  builder: (context, AsyncSnapshot<DataSnapshot> snapshot) {
  if (snapshot.hasData) {
  lists.clear();
- Map<dynamic, dynamic> values = snapshot.data.value;
+ Map<dynamic, dynamic> values = snapshot.data!.value;
  values.forEach((key, values) {
  lists.add(values);
  });

firebase_database_tutorial/lib/main.dart

@@ -25,8 +25,8 @@ class MyApp extends StatelessWidget {
 }
 
 class MyHomePage extends StatefulWidget {
- MyHomePage({Key key, this.title}) : super(key: key);
- final String title;
+ MyHomePage({Key? key, this.title}) : super(key: key);
+ final String? title;
 
  @override
  _MyHomePageState createState() => _MyHomePageState();
@@ -37,7 +37,7 @@ class _MyHomePageState extends State<MyHomePage> {
  Widget build(BuildContext context) {
  return Scaffold(
  appBar: AppBar(
- title: Text(widget.title),
+ title: Text(widget.title!),
  ),
  body: Center(
  child: SingleChildScrollView(
@@ -58,7 +58,7 @@ class _MyHomePageState extends State<MyHomePage> {
 }
 
 class RegisterPet extends StatefulWidget {
- RegisterPet({Key key}) : super(key: key);
+ RegisterPet({Key? key}) : super(key: key);
 
  @override
  _RegisterPetState createState() => _RegisterPetState();
@@ -67,7 +67,7 @@ class RegisterPet extends StatefulWidget {
 class _RegisterPetState extends State<RegisterPet> {
  final _formKey = GlobalKey<FormState>();
  final listOfPets = ["Cats", "Dogs", "Rabbits"];
- String dropdownValue = 'Cats';
+ String? dropdownValue = 'Cats';
  final nameController = TextEditingController();
  final ageController = TextEditingController();
  final dbRef = FirebaseDatabase.instance.reference().child("pets");
@@ -90,7 +90,7 @@ class _RegisterPetState extends State<RegisterPet> {
  ),
  // The validator receives the text that the user has entered.
  validator: (value) {
- if (value.isEmpty) {
+ if (value!.isEmpty) {
  return 'Enter Pet Name';
  }
  return null;
@@ -114,12 +114,12 @@ class _RegisterPetState extends State<RegisterPet> {
  child: new Text(value),
  );
  }).toList(),
- onChanged: (String newValue) {
+ onChanged: (String? newValue) {
  setState(() {
  dropdownValue = newValue;
  });
  },
- validator: (value) {
+ validator: (dynamic value) {
  if (value.isEmpty) {
  return 'Please Select Pet';
  }
@@ -140,7 +140,7 @@ class _RegisterPetState extends State<RegisterPet> {
  ),
  // The validator receives the text that the user has entered.
  validator: (value) {
- if (value.isEmpty) {
+ if (value!.isEmpty) {
  return 'Please Pet Age';
  }
  return null;
@@ -154,7 +154,7 @@ class _RegisterPetState extends State<RegisterPet> {
  children: <Widget>[
  ElevatedButton(
  onPressed: () {
- if (_formKey.currentState.validate()) {
+ if (_formKey.currentState!.validate()) {
  dbRef.push().set({
  "name": nameController.text,
  "age": ageController.text,

firebase_database_tutorial/pubspec.lock

@@ -63,28 +63,28 @@ packages:
  name: firebase_core
  url: "https://pub.dartlang.org"
  source: hosted
- version: "1.0.3"
+ version: "1.2.1"
  firebase_core_platform_interface:
  dependency: transitive
  description:
  name: firebase_core_platform_interface
  url: "https://pub.dartlang.org"
  source: hosted
- version: "4.0.0"
+ version: "4.0.1"
  firebase_core_web:
  dependency: transitive
  description:
  name: firebase_core_web
  url: "https://pub.dartlang.org"
  source: hosted
- version: "1.0.2"
+ version: "1.1.0"
  firebase_database:
  dependency: "direct main"
  description:
  name: firebase_database
  url: "https://pub.dartlang.org"
  source: hosted
- version: "6.1.2"
+ version: "7.1.0"
  flutter:
  dependency: "direct main"
  description: flutter

firebase_database_tutorial/pubspec.yaml

@@ -18,45 +18,36 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
- sdk: ">=2.7.0 <3.0.0"
+ sdk: '>=2.12.0 <3.0.0'
 
 dependencies:
- firebase_core: ^1.0.3
- firebase_database: ^6.1.2
  flutter:
  sdk: flutter
-
-
- # The following adds the Cupertino Icons font to your application.
- # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^0.1.3
+ firebase_core: ^1.2.1
+ firebase_database: ^7.1.0
 
 dev_dependencies:
  flutter_test:
  sdk: flutter
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec
-
 # The following section is specific to Flutter.
 flutter:
 
  # The following line ensures that the Material Icons font is
  # included with your application, so that you can use the icons in
  # the material Icons class.
  uses-material-design: true
-
  # To add assets to your application, add an assets section, like this:
  # assets:
  # - images/a_dot_burr.jpeg
  # - images/a_dot_ham.jpeg
-
  # An image asset can refer to one or more resolution-specific "variants", see
  # https://flutter.dev/assets-and-images/#resolution-aware.
-
  # For details regarding adding assets from package dependencies, see
  # https://flutter.dev/assets-and-images/#from-packages
-
  # To add custom fonts to your application, add a fonts section here,
  # in this "flutter" section. Each entry in this list should have a
  # "family" key with the font family name, and a "fonts" key with a

firebase_start_tutorial/pubspec.lock

@@ -63,28 +63,28 @@ packages:
  name: firebase_core
  url: "https://pub.dartlang.org"
  source: hosted
- version: "1.0.3"
+ version: "1.2.1"
  firebase_core_platform_interface:
  dependency: transitive
  description:
  name: firebase_core_platform_interface
  url: "https://pub.dartlang.org"
  source: hosted
- version: "4.0.0"
+ version: "4.0.1"
  firebase_core_web:
  dependency: transitive
  description:
  name: firebase_core_web
  url: "https://pub.dartlang.org"
  source: hosted
- version: "1.0.2"
+ version: "1.1.0"
  firebase_database:
  dependency: "direct main"
  description:
  name: firebase_database
  url: "https://pub.dartlang.org"
  source: hosted
- version: "6.1.2"
+ version: "7.1.0"
  flutter:
  dependency: "direct main"
  description: flutter

firebase_start_tutorial/pubspec.yaml

@@ -24,8 +24,8 @@ dependencies:
  flutter:
  sdk: flutter
  cupertino_icons: ^1.0.2
- firebase_core: ^1.0.3
- firebase_database: ^6.1.2
+ firebase_core: ^1.2.1
+ firebase_database: ^7.1.0
 
 dev_dependencies:
  flutter_test: