7. Environments (flutter_flavor)

lib/main.dart

@@ -3,8 +3,10 @@ import 'package:counter_workshop/src/features/counter/data/datasources/local/cou
 import 'package:counter_workshop/src/features/counter/data/datasources/remote/src/mock/counter_fake.api.dart';
 import 'package:counter_workshop/src/features/counter/data/repositories/counter.repository.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_flavor/flutter_flavor.dart';
 
 void main() {
+  FlavorConfig(name: '', variables: {'env': 'PRODUCTION', 'API_URL': ''});
   final CounterRepository counterRepository =
       CounterRepository(counterApi: CounterFakeApi(), counterDatabase: CounterDatabase());
   runApp(

lib/main.develop.dart

@@ -0,0 +1,21 @@
+import 'package:counter_workshop/src/app.dart';
+import 'package:counter_workshop/src/features/counter/data/datasources/local/counter.db.dart';
+import 'package:counter_workshop/src/features/counter/data/datasources/remote/src/mock/counter_fake.api.dart';
+import 'package:counter_workshop/src/features/counter/data/repositories/counter.repository.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_flavor/flutter_flavor.dart';
+
+void main() {
+  FlavorConfig(
+      name: 'DEVELOP',
+      color: Colors.red,
+      location: BannerLocation.bottomEnd,
+      variables: {'env': 'DEVELOP', 'API_URL': ''});
+  final CounterRepository counterRepository =
+      CounterRepository(counterApi: CounterFakeApi(), counterDatabase: CounterDatabase());
+  runApp(
+    App(
+      counterRepository: counterRepository,
+    ),
+  );
+}

lib/main.stage.dart

@@ -0,0 +1,22 @@
+import 'package:counter_workshop/src/app.dart';
+import 'package:counter_workshop/src/features/counter/data/datasources/local/counter.db.dart';
+import 'package:counter_workshop/src/features/counter/data/datasources/remote/src/mock/counter_fake.api.dart';
+import 'package:counter_workshop/src/features/counter/data/repositories/counter.repository.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_flavor/flutter_flavor.dart';
+
+void main() {
+  FlavorConfig(
+      name: 'STAGE',
+      color: Colors.blue,
+      location: BannerLocation.bottomStart,
+      variables: {'env': 'STAGE', 'API_URL': ''});
+
+  final CounterRepository counterRepository =
+      CounterRepository(counterApi: CounterFakeApi(), counterDatabase: CounterDatabase());
+  runApp(
+    App(
+      counterRepository: counterRepository,
+    ),
+  );
+}

lib/src/app.dart

@@ -2,6 +2,7 @@ import 'package:counter_workshop/src/core/theme/app.theme.dart';
 import 'package:counter_workshop/src/features/counter/data/repositories/counter.repository.dart';
 import 'package:counter_workshop/src/features/counter/presentation/counter.page.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_flavor/flutter_flavor.dart';
 
 class App extends StatelessWidget {
   const App({required this.counterRepository, super.key});
@@ -11,12 +12,14 @@ class App extends StatelessWidget {
   Widget build(BuildContext context) {
     final appTheme = AppTheme();
 
-    return MaterialApp(
+    return FlavorBanner(
+        child: MaterialApp(
       title: 'Counter Demo',
       theme: appTheme.light,
+      debugShowCheckedModeBanner: FlavorConfig.instance.variables['env'] != 'PRODUCTION',
       darkTheme: appTheme.dark,
       themeMode: ThemeMode.system,
       home: CounterPage(counterRepository: counterRepository),
-    );
+    ));
   }
 }

pubspec.lock

@@ -188,6 +188,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_flavor:
+    dependency: "direct main"
+    description:
+      name: flutter_flavor
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.1"
   flutter_lints:
     dependency: "direct dev"
     description:
@@ -290,7 +297,7 @@ packages:
       name: material_color_utilities
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.5"
+    version: "0.2.0"
   meta:
     dependency: transitive
     description:
@@ -365,7 +372,7 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.0"
+    version: "1.9.1"
   stack_trace:
     dependency: transitive
     description:
@@ -407,7 +414,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.12"
+    version: "0.4.13"
   timing:
     dependency: transitive
     description:
@@ -428,7 +435,7 @@ packages:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.2"
+    version: "2.1.3"
   watcher:
     dependency: transitive
     description:
@@ -452,3 +459,4 @@ packages:
     version: "3.1.1"
 sdks:
   dart: ">=2.18.0 <3.0.0"
+  flutter: ">=1.17.0"

pubspec.yaml

@@ -15,6 +15,7 @@ dependencies:
   cupertino_icons: ^1.0.2
   equatable: ^2.0.5
   http: ^0.13.5
+  flutter_flavor: ^3.1.1
 
 dev_dependencies:
   flutter_test: