release 1

android/app/src/main/AndroidManifest.xml

@@ -1,6 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <application
-        android:label="calculadora_supermarket"
+        android:label="Calculadora Supermarket"
         android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher">
         <activity

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <background android:drawable="@color/ic_launcher_background"/>
+  <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

android/app/src/main/res/values/colors.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#FFFFFF</color>
+</resources>

ios/Runner.xcodeproj/project.pbxproj

@@ -431,7 +431,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = AppIcon;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
@@ -488,7 +488,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = AppIcon;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";

lib/main.dart

@@ -1,121 +1,208 @@
 import 'package:flutter/material.dart';
 
 void main() {
-  runApp(const MyApp());
+  runApp(const SupermarketCalcApp());
 }
 
-class MyApp extends StatelessWidget {
-  const MyApp({super.key});
+class SupermarketCalcApp extends StatelessWidget {
+  const SupermarketCalcApp({super.key});
 
-  // This widget is the root of your application.
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
-      title: 'Flutter Demo',
+      title: 'Calc Margen',
+      debugShowCheckedModeBanner: false,
+      // Configuración Material You (M3)
       theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // TRY THIS: Try running your application with "flutter run". You'll see
-        // the application has a purple toolbar. Then, without quitting the app,
-        // try changing the seedColor in the colorScheme below to Colors.green
-        // and then invoke "hot reload" (save your changes or press the "hot
-        // reload" button in a Flutter-supported IDE, or press "r" if you used
-        // the command line to start the app).
-        //
-        // Notice that the counter didn't reset back to zero; the application
-        // state is not lost during the reload. To reset the state, use hot
-        // restart instead.
-        //
-        // This works for code too, not just values: Most code changes can be
-        // tested with just a hot reload.
-        colorScheme: .fromSeed(seedColor: Colors.deepPurple),
+        useMaterial3: true,
+        colorScheme: ColorScheme.fromSeed(
+          seedColor: Colors.red,
+          brightness: Brightness.light,
+        ),
       ),
-      home: const MyHomePage(title: 'Flutter Demo Home Page'),
+      home: const HomePage(),
     );
   }
 }
 
-class MyHomePage extends StatefulWidget {
-  const MyHomePage({super.key, required this.title});
-
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
-  final String title;
+class HomePage extends StatefulWidget {
+  const HomePage({super.key});
 
   @override
-  State<MyHomePage> createState() => _MyHomePageState();
+  State<HomePage> createState() => _HomePageState();
 }
 
-class _MyHomePageState extends State<MyHomePage> {
-  int _counter = 0;
+class _HomePageState extends State<HomePage> {
+  final _costController = TextEditingController(text: "1.50");
+  final _marginController = TextEditingController(text: "40");
+  
+  double _exactPrice = 2.10;
+  double _profit = 0.60;
+  String _suggestedPrice = "2.50 €";
+
+  @override
+  void initState() {
+    super.initState();
+    _calculate();
+  }
+
+  void _calculate() {
+    final double cost = double.tryParse(_costController.text) ?? 0;
+    final double marginPercent = double.tryParse(_marginController.text) ?? 0;
+
+    if (cost <= 0 || marginPercent <= 0) {
+      setState(() {
+        _suggestedPrice = "---";
+      });
+      return;
+    }
+
+    _profit = cost * (marginPercent / 100);
+    _exactPrice = cost + _profit;
+
+    // Lógica de Redondeo Psicológico (.50, .95, .99)
+    int floorPrice = _exactPrice.floor();
+    double finalVal;
+
+    if (_exactPrice <= 1) {
+      finalVal = (_exactPrice < 0.50) ? 0.99 : (_exactPrice.ceil() - 0.01);
+    } else {
+      if (_exactPrice <= floorPrice + 0.50) {
+        finalVal = floorPrice + 0.50;
+      } else if (_exactPrice <= floorPrice + 0.95) {
+        finalVal = floorPrice + 0.95;
+      } else {
+        finalVal = floorPrice + 0.99;
+      }
+      
+      if (finalVal < _exactPrice) {
+        finalVal = _exactPrice.ceil() + 0.99;
+      }
+    }
 
-  void _incrementCounter() {
     setState(() {
-      // This call to setState tells the Flutter framework that something has
-      // changed in this State, which causes it to rerun the build method below
-      // so that the display can reflect the updated values. If we changed
-      // _counter without calling setState(), then the build method would not be
-      // called again, and so nothing would appear to happen.
-      _counter++;
+      _suggestedPrice = "${finalVal.toStringAsFixed(2)} €";
     });
   }
 
   @override
   Widget build(BuildContext context) {
-    // This method is rerun every time setState is called, for instance as done
-    // by the _incrementCounter method above.
-    //
-    // The Flutter framework has been optimized to make rerunning build methods
-    // fast, so that you can just rebuild anything that needs updating rather
-    // than having to individually change instances of widgets.
+    final colors = Theme.of(context).colorScheme;
+
     return Scaffold(
+      backgroundColor: colors.surface,
       appBar: AppBar(
-        // TRY THIS: Try changing the color here to a specific color (to
-        // Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
-        // change color while the other colors stay the same.
-        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
-        // Here we take the value from the MyHomePage object that was created by
-        // the App.build method, and use it to set our appbar title.
-        title: Text(widget.title),
+        title: const Text("Calculadora de Margen"),
+        centerTitle: true,
+        backgroundColor: colors.surface,
+        elevation: 0,
       ),
-      body: Center(
-        // Center is a layout widget. It takes a single child and positions it
-        // in the middle of the parent.
+      body: SingleChildScrollView(
+        padding: const EdgeInsets.all(24.0),
         child: Column(
-          // Column is also a layout widget. It takes a list of children and
-          // arranges them vertically. By default, it sizes itself to fit its
-          // children horizontally, and tries to be as tall as its parent.
-          //
-          // Column has various properties to control how it sizes itself and
-          // how it positions its children. Here we use mainAxisAlignment to
-          // center the children vertically; the main axis here is the vertical
-          // axis because Columns are vertical (the cross axis would be
-          // horizontal).
-          //
-          // TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
-          // action in the IDE, or press "p" in the console), to see the
-          // wireframe for each widget.
-          mainAxisAlignment: .center,
           children: [
-            const Text('You have pushed the button this many times:'),
-            Text(
-              '$_counter',
-              style: Theme.of(context).textTheme.headlineMedium,
+            // Card de entrada de datos
+            Card(
+              elevation: 0,
+              color: colors.surfaceContainerHighest.withOpacity(0.3),
+              shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(24)),
+              child: Padding(
+                padding: const EdgeInsets.all(20.0),
+                child: Column(
+                  children: [
+                    TextField(
+                      controller: _costController,
+                      keyboardType: const TextInputType.numberWithOptions(decimal: true),
+                      onChanged: (_) => _calculate(),
+                      decoration: InputDecoration(
+                        labelText: "Costo Base",
+                        prefixText: "€ ",
+                        border: OutlineInputBorder(borderRadius: BorderRadius.circular(16)),
+                        filled: true,
+                        fillColor: colors.surface,
+                      ),
+                    ),
+                    const SizedBox(height: 16),
+                    TextField(
+                      controller: _marginController,
+                      keyboardType: TextInputType.number,
+                      onChanged: (_) => _calculate(),
+                      decoration: InputDecoration(
+                        labelText: "Margen Deseado",
+                        suffixText: "%",
+                        border: OutlineInputBorder(borderRadius: BorderRadius.circular(16)),
+                        filled: true,
+                        fillColor: colors.surface,
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+            ),
+            const SizedBox(height: 24),
+            
+            // Resultados Intermedios
+            Row(
+              children: [
+                _buildInfoTile("Precio Exacto", "${_exactPrice.toStringAsFixed(2)} €", colors),
+                const SizedBox(width: 12),
+                _buildInfoTile("Ganancia", "${_profit.toStringAsFixed(2)} €", colors),
+              ],
+            ),
+            const SizedBox(height: 24),
+
+            // Card de Resultado Final (Material You Hero)
+            Container(
+              width: double.infinity,
+              padding: const EdgeInsets.symmetric(vertical: 32, horizontal: 16),
+              decoration: BoxDecoration(
+                color: colors.primaryContainer,
+                borderRadius: BorderRadius.circular(28),
+              ),
+              child: Column(
+                children: [
+                  Text(
+                    "PRECIO SUGERIDO",
+                    style: TextStyle(
+                      color: colors.onPrimaryContainer,
+                      fontWeight: FontWeight.w900,
+                      letterSpacing: 1.2,
+                    ),
+                  ),
+                  const SizedBox(height: 8),
+                  Text(
+                    _suggestedPrice,
+                    style: TextStyle(
+                      fontSize: 56,
+                      fontWeight: FontWeight.bold,
+                      color: colors.onPrimaryContainer,
+                    ),
+                  ),
+                  Icon(Icons.auto_awesome, color: colors.primary, size: 30),
+                ],
+              ),
             ),
           ],
         ),
       ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _incrementCounter,
-        tooltip: 'Increment',
-        child: const Icon(Icons.add),
+    );
+  }
+
+  Widget _buildInfoTile(String label, String value, ColorScheme colors) {
+    return Expanded(
+      child: Container(
+        padding: const EdgeInsets.all(16),
+        decoration: BoxDecoration(
+          border: Border.all(color: colors.outlineVariant),
+          borderRadius: BorderRadius.circular(20),
+        ),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text(label, style: TextStyle(fontSize: 12, color: colors.secondary)),
+            Text(value, style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold)),
+          ],
+        ),
       ),
     );
   }

pubspec.yaml

@@ -1,89 +1,30 @@
 name: calculadora_supermarket
-description: "A new Flutter project."
-# The following line prevents the package from being accidentally published to
-# pub.dev using `flutter 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 is used as CFBundleVersion.
-# Read more about iOS versioning at
-# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
-# In Windows, build-name is used as the major, minor, and patch parts
-# of the product and file versions while build-number is used as the build suffix.
+description: "Calculadora de beneficio Supermarket Together"
+publish_to: 'none'
 version: 1.0.0+1
 
 environment:
   sdk: ^3.11.4
 
-# Dependencies specify other packages that your package needs in order to work.
-# To automatically upgrade your package dependencies to the latest versions
-# consider running `flutter pub upgrade --major-versions`. Alternatively,
-# dependencies can be manually updated by changing the version numbers below to
-# the latest version available on pub.dev. To see which dependencies have newer
-# versions available, run `flutter pub outdated`.
 dependencies:
   flutter:
     sdk: flutter
-
-  # The following adds the Cupertino Icons font to your application.
-  # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.8
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
-
-  # The "flutter_lints" package below contains a set of recommended lints to
-  # encourage good coding practices. The lint set provided by the package is
-  # activated in the `analysis_options.yaml` file located at the root of your
-  # package. See that file for information about deactivating specific lint
-  # rules and activating additional ones.
+  # AQUÍ ESTABA EL ERROR: Debe estar al mismo nivel que flutter_test
+  flutter_launcher_icons: "^0.13.1"
   flutter_lints: ^6.0.0
 
-# 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 packages.
 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/to/resolution-aware-images
-
-  # For details regarding adding assets from package dependencies, see
-  # https://flutter.dev/to/asset-from-package
-
-  # 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/to/font-from-package
+# Esta sección está perfecta, déjala al final del archivo
+flutter_launcher_icons:
+  android: true
+  ios: true
+  image_path: "icon.png"
+  adaptive_icon_background: "#FFFFFF"
+  adaptive_icon_foreground: "icon.png"