pubspec.lock

@@ -22,13 +22,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.4.1"
-  audioplayers:
-    dependency: transitive
-    description:
-      name: audioplayers
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.15.1"
   boolean_selector:
     dependency: transitive
     description:
@@ -36,13 +29,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.0"
-  box2d_flame:
-    dependency: transitive
-    description:
-      name: box2d_flame
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.4.6"
   charcode:
     dependency: transitive
     description:
@@ -78,41 +64,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.3"
-  ffi:
-    dependency: transitive
-    description:
-      name: ffi
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.3"
-  file:
-    dependency: transitive
-    description:
-      name: file
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "5.2.1"
-  flame:
-    dependency: "direct main"
-    description:
-      name: flame
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.26.0"
-  flare_dart:
-    dependency: transitive
-    description:
-      name: flare_dart
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.3.4"
-  flare_flutter:
-    dependency: transitive
-    description:
-      name: flare_flutter
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.6"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -123,11 +74,6 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
-  flutter_web_plugins:
-    dependency: transitive
-    description: flutter
-    source: sdk
-    version: "0.0.0"
   image:
     dependency: transitive
     description:
@@ -135,13 +81,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.12"
-  intl:
-    dependency: transitive
-    description:
-      name: intl
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.16.1"
   matcher:
     dependency: transitive
     description:
@@ -156,13 +95,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.8"
-  ordered_set:
-    dependency: transitive
-    description:
-      name: ordered_set
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.0"
   path:
     dependency: transitive
     description:
@@ -170,41 +102,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.6.4"
-  path_provider:
-    dependency: transitive
-    description:
-      name: path_provider
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.6.21"
-  path_provider_linux:
-    dependency: transitive
-    description:
-      name: path_provider_linux
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.0.1+2"
-  path_provider_macos:
-    dependency: transitive
-    description:
-      name: path_provider_macos
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.0.4+4"
-  path_provider_platform_interface:
-    dependency: transitive
-    description:
-      name: path_provider_platform_interface
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.3"
-  path_provider_windows:
-    dependency: transitive
-    description:
-      name: path_provider_windows
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.0.4+1"
   petitparser:
     dependency: transitive
     description:
@@ -212,27 +109,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.4.0"
-  platform:
-    dependency: transitive
-    description:
-      name: platform
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.2.1"
-  plugin_platform_interface:
-    dependency: transitive
-    description:
-      name: plugin_platform_interface
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.3"
-  process:
-    dependency: transitive
-    description:
-      name: process
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.0.13"
   quiver:
     dependency: transitive
     description:
@@ -273,13 +149,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.5"
-  synchronized:
-    dependency: transitive
-    description:
-      name: synchronized
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.2.0+2"
   term_glyph:
     dependency: transitive
     description:
@@ -301,13 +170,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.6"
-  uuid:
-    dependency: transitive
-    description:
-      name: uuid
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.2.2"
   vector_math:
     dependency: transitive
     description:
@@ -315,20 +177,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.8"
-  win32:
-    dependency: transitive
-    description:
-      name: win32
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.7.3"
-  xdg_directories:
-    dependency: transitive
-    description:
-      name: xdg_directories
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.0"
   xml:
     dependency: transitive
     description:
@@ -337,5 +185,4 @@ packages:
     source: hosted
     version: "3.6.1"
 sdks:
-  dart: ">=2.8.0 <3.0.0"
+  dart: ">=2.7.0 <3.0.0"
-  flutter: ">=1.12.13+hotfix.5 <2.0.0"

pubspec.yaml

@@ -1,8 +1,20 @@
 name: the_most_expensive_button
 description: A new Flutter project.
 
-publish_to: 'none'
+# The following line prevents the package from being accidentally published to
+# pub.dev using `pub publish`. This is preferred for private packages.
+publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 
+# The following defines the version and build number for your application.
+# A version number is three numbers separated by dots, like 1.2.43
+# followed by an optional build number separated by a +.
+# Both the version and the builder number may be overridden in flutter
+# build by specifying --build-name and --build-number, respectively.
+# In Android, build-name is used as versionName while build-number used as versionCode.
+# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
+# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
+# Read more about iOS versioning at
+# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 version: 1.0.0+1
 
 environment:
@@ -11,12 +23,55 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  cupertino_icons: ^0.1.3
   flame: ^0.26.0
 
+
+  # The following adds the Cupertino Icons font to your application.
+  # Use with the CupertinoIcons class for iOS style icons.
+  cupertino_icons: ^0.1.3
+
 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
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts from package dependencies,
+  # see https://flutter.dev/custom-fonts/#from-packages

shell.nix

@@ -3,7 +3,7 @@
 with pkgs;
 
 mkShell {
-  buildInputs = [ flutter-dev androidenv.androidPkgs_9_0.androidsdk jdk ];
+  buildInputs = [ dart flutter androidenv.androidPkgs_9_0.androidsdk jdk ];
 
   ANDROID_HOME = "${androidenv.androidPkgs_9_0.androidsdk}/libexec/android-sdk";
   ANDROID_AVD_HOME = (toString ./.) + "/.android/avd";

test/widget_test.dart

@@ -0,0 +1,30 @@
+// This is a basic Flutter widget test.
+//
+// To perform an interaction with a widget in your test, use the WidgetTester
+// utility that Flutter provides. For example, you can send tap and scroll
+// gestures. You can also use WidgetTester to find child widgets in the widget
+// tree, read text, and verify that the values of widget properties are correct.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:the_most_expensive_button/main.dart';
+
+void main() {
+  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
+    // Build our app and trigger a frame.
+    await tester.pumpWidget(MyApp());
+
+    // Verify that our counter starts at 0.
+    expect(find.text('0'), findsOneWidget);
+    expect(find.text('1'), findsNothing);
+
+    // Tap the '+' icon and trigger a frame.
+    await tester.tap(find.byIcon(Icons.add));
+    await tester.pump();
+
+    // Verify that our counter has incremented.
+    expect(find.text('0'), findsNothing);
+    expect(find.text('1'), findsOneWidget);
+  });
+}