Upgrading samples to flutter_lints, part 1 of n (#804)

experimental/federated_plugin/federated_plugin/example/lib/main.dart

@@ -33,19 +33,19 @@ class _HomePageState extends State<HomePage> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: Text('Federated Plugin Demo'),
+        title: const Text('Federated Plugin Demo'),
       ),
       body: Center(
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: [
             batteryLevel == null
-                ? SizedBox.shrink()
+                ? const SizedBox.shrink()
                 : Text(
                     'Battery Level: $batteryLevel',
                     style: Theme.of(context).textTheme.headline5,
                   ),
-            SizedBox(height: 16),
+            const SizedBox(height: 16),
             ElevatedButton(
               onPressed: () async {
                 try {
@@ -64,7 +64,7 @@ class _HomePageState extends State<HomePage> {
                   );
                 }
               },
-              child: Text('Get Battery Level'),
+              child: const Text('Get Battery Level'),
             ),
           ],
         ),

experimental/federated_plugin/federated_plugin/example/pubspec.lock

@@ -97,6 +97,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_lints:
+    dependency: "direct dev"
+    description:
+      name: flutter_lints
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -114,6 +121,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.6.3"
+  lints:
+    dependency: transitive
+    description:
+      name: lints
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   matcher:
     dependency: transitive
     description:
@@ -135,13 +149,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0"
-  pedantic:
-    dependency: "direct dev"
-    description:
-      name: pedantic
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.11.0"
   plugin_platform_interface:
     dependency: transitive
     description:

experimental/federated_plugin/federated_plugin/example/pubspec.yaml

@@ -1,7 +1,7 @@
 name: federated_plugin_example
 description: Demonstrates how to use the federated_plugin plugin.
 
-publish_to: 'none' # Remove this line if you wish to publish to pub.dev
+publish_to: "none" # Remove this line if you wish to publish to pub.dev
 
 environment:
   sdk: ">=2.12.0 <3.0.0"
@@ -17,7 +17,7 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  pedantic: ^1.11.0
+  flutter_lints: ^1.0.0
 
 flutter:
   uses-material-design: true

experimental/federated_plugin/federated_plugin/example/test/widget_test.dart

@@ -9,9 +9,9 @@ import 'package:flutter_test/flutter_test.dart';
 
 void main() {
   group('federated plugin demo tests', () {
-    final batteryLevel = 45;
+    const batteryLevel = 45;
     setUpAll(() {
-      MethodChannel('battery').setMockMethodCallHandler((call) async {
+      const MethodChannel('battery').setMockMethodCallHandler((call) async {
         if (call.method == 'getBatteryLevel') {
           return batteryLevel;
         }