Basic Firebase setup

android/app/build.gradle

@@ -24,6 +24,7 @@ if (flutterVersionName == null) {
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+apply plugin: 'com.google.gms.google-services'
 
 android {
     compileSdkVersion 28
@@ -60,4 +61,5 @@ flutter {
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation platform('com.google.firebase:firebase-bom:25.12.0')
 }

android/build.gradle

@@ -8,6 +8,7 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:3.5.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath 'com.google.gms:google-services:4.3.3'
     }
 }
 

lib/main.dart

@@ -1,14 +1,59 @@
 import 'package:commander_league/views/home.dart';
+import 'package:commander_league/views/loading.dart';
 import 'package:flutter/material.dart';
 
+// Import the firebase_core plugin
+import 'package:firebase_core/firebase_core.dart';
+
 void main() {
   runApp(MyApp());
 }
 
-class MyApp extends StatelessWidget {
+class MyApp extends StatefulWidget {
-  // This widget is the root of your application.
+  @override
+  _MyAppState createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  // Set default `_initialized` and `_error` state to false
+  bool _initialized = false;
+  bool _error = false;
+
+  // Define an async function to initialize FlutterFire
+  void initializeFlutterFire() async {
+    try {
+      // Wait for Firebase to initialize and set `_initialized` state to true
+      await Firebase.initializeApp();
+      setState(() {
+        _initialized = true;
+      });
+    } catch (e) {
+      // Set `_error` state to true if Firebase initialization fails
+      print(e);
+      setState(() {
+        _error = true;
+      });
+    }
+  }
+
+  @override
+  void initState() {
+    initializeFlutterFire();
+    super.initState();
+  }
+
   @override
   Widget build(BuildContext context) {
+    // Show error message if initialization failed
+    if (_error) {
+      return Loading();
+    }
+
+    // Show a loader until FlutterFire is initialized
+    if (!_initialized) {
+      return Loading();
+    }
+
     return MaterialApp(
       title: 'Commander League',
       theme: ThemeData(

lib/views/loading.dart

@@ -0,0 +1,14 @@
+import 'package:flutter/material.dart';
+
+class Loading extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        body: SafeArea(
+          child: Center(child: CircularProgressIndicator()),
+        ),
+      ),
+    );
+  }
+}

pubspec.lock

@@ -57,6 +57,55 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
+  firebase:
+    dependency: transitive
+    description:
+      name: firebase
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "7.3.1"
+  firebase_auth:
+    dependency: "direct main"
+    description:
+      name: firebase_auth
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.18.1+2"
+  firebase_auth_platform_interface:
+    dependency: transitive
+    description:
+      name: firebase_auth_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.1"
+  firebase_auth_web:
+    dependency: transitive
+    description:
+      name: firebase_auth_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.1+1"
+  firebase_core:
+    dependency: "direct main"
+    description:
+      name: firebase_core
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.5.0+1"
+  firebase_core_platform_interface:
+    dependency: transitive
+    description:
+      name: firebase_core_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  firebase_core_web:
+    dependency: transitive
+    description:
+      name: firebase_core_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.0"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -67,6 +116,39 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  http:
+    dependency: transitive
+    description:
+      name: http
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.2"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.4"
+  intl:
+    dependency: transitive
+    description:
+      name: intl
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.16.1"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.2"
   matcher:
     dependency: transitive
     description:
@@ -88,6 +170,27 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.0"
+  pedantic:
+    dependency: transitive
+    description:
+      name: pedantic
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.0"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
+  quiver:
+    dependency: transitive
+    description:
+      name: quiver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.3"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -151,3 +254,4 @@ packages:
     version: "2.0.8"
 sdks:
   dart: ">=2.9.0-14.0.dev <3.0.0"
+  flutter: ">=1.12.13+hotfix.5 <2.0.0"

pubspec.yaml

@@ -23,6 +23,8 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
+  firebase_core: "^0.5.0+1"
+  firebase_auth: "^0.18.1+2"
 
 
   # The following adds the Cupertino Icons font to your application.