Nueva opcion si esta en nevera, congelador u otro lugar

README.md

@@ -4,10 +4,12 @@ Aplicación Android moderna y colaborativa diseñada para gestionar el inventari
 
 ## 🚀 Novedades Recientes
 *   **Seguimiento de Cambios:** Ahora puedes ver qué miembro de la familia realizó la última modificación en cada producto.
+*   **Easy Family Sync:** Invita a miembros de tu familia compartiendo un código directamente desde los ajustes.
 *   **Historial de Precios:** Seguimiento de la evolución de precios por supermercado.
 *   **Comparativa de Supermercados:** Identifica dónde encontraste el producto por última vez y a qué precio.
 *   **Configuración de Alertas:** Frecuencia de notificaciones personalizable (12h, 24h, 48h o Semanal).
 *   **Gestión de Imágenes:** Sube tus propias fotos desde la galería o haz una foto directamente si el producto no tiene imagen en Open Food Facts.
+*   **Inventario por Zonas (Smart Zoned Inventory):** Organiza tus productos por ubicación (Despensa, Nevera, Congelador, Baño, etc.) para un control más preciso.
 *   **Valoración Financiera:** Visualiza el valor total de tu despensa y el presupuesto necesario para reponer lo que falta.
 
 ## 🛠 Funcionalidades Principales

app/src/main/java/com/example/despensapp/data/model/Product.kt

@@ -7,8 +7,11 @@ data class Product(
     val minQuantity: Int,
     val unit: String = "unidad",
     val category: String = "General",
+    val location: String = "Despensa",
     val price: Double = 0.0,
     val lastSupermarket: String? = null,
+    val bestPrice: Double? = null,
+    val bestPriceSupermarket: String? = null,
     val imageUrl: String? = null,
     val expirationDate: String? = null,
     val createdAt: String? = null,

app/src/main/java/com/example/despensapp/data/repository/PantryRepository.kt

@@ -51,11 +51,18 @@ class PantryRepository {
         return withContext(Dispatchers.IO) {
             try {
                 val connection = getConnection()
-                val sql = if (familyCode != null) {
+                val sql = """
-                    "SELECT * FROM productos WHERE visible = 1 AND codigo_familia = ?"
+                    SELECT p.*, h.precio as mejor_precio, h.supermercado as mejor_supermercado 
-                } else {
+                    FROM productos p 
-                    "SELECT * FROM productos WHERE visible = 1"
+                    LEFT JOIN historial_precios h ON h.id = (
-                }
+                        SELECT id FROM historial_precios 
+                        WHERE id_producto = p.id 
+                        ORDER BY precio ASC, fecha DESC 
+                        LIMIT 1
+                    )
+                    WHERE p.visible = 1 ${if (familyCode != null) "AND p.codigo_familia = ?" else ""}
+                """.trimIndent()
+                
                 val statement = connection.prepareStatement(sql)
                 if (familyCode != null) {
                     statement.setString(1, familyCode)
@@ -72,8 +79,11 @@ class PantryRepository {
                             minQuantity = resultSet.getInt("cantidad_minima"),
                             unit = resultSet.getString("unidad") ?: "unidad",
                             category = resultSet.getString("categoria"),
+                            location = resultSet.getString("ubicacion") ?: "Despensa",
                             price = resultSet.getDouble("precio"),
                             lastSupermarket = resultSet.getString("ultimo_supermercado"),
+                            bestPrice = if (resultSet.getObject("mejor_precio") != null) resultSet.getDouble("mejor_precio") else null,
+                            bestPriceSupermarket = resultSet.getString("mejor_supermercado"),
                             imageUrl = resultSet.getString("imagen_url"),
                             expirationDate = resultSet.getString("fecha_caducidad"),
                             createdAt = resultSet.getString("fecha_alta"),
@@ -140,6 +150,7 @@ class PantryRepository {
         minCantidad: Int,
         unidad: String,
         category: String,
+        location: String,
         price: Double,
         supermarket: String? = null,
         fechaCaducidad: String?,
@@ -149,19 +160,20 @@ class PantryRepository {
         return withContext(Dispatchers.IO) {
             try {
                 val connection = getConnection()
-                val sql = "UPDATE productos SET nombre = ?, cantidad = ?, cantidad_minima = ?, unidad = ?, categoria = ?, precio = ?, ultimo_supermercado = ?, fecha_caducidad = ?, imagen_url = ?, visible = 1, modificado_por = ? WHERE id = ?"
+                val sql = "UPDATE productos SET nombre = ?, cantidad = ?, cantidad_minima = ?, unidad = ?, categoria = ?, ubicacion = ?, precio = ?, ultimo_supermercado = ?, fecha_caducidad = ?, imagen_url = ?, visible = 1, modificado_por = ? WHERE id = ?"
                 val statement = connection.prepareStatement(sql)
                 statement.setString(1, nombre)
                 statement.setInt(2, cantidad)
                 statement.setInt(3, minCantidad)
                 statement.setString(4, unidad)
                 statement.setString(5, category)
-                statement.setDouble(6, price)
+                statement.setString(6, location)
-                statement.setString(7, supermarket)
+                statement.setDouble(7, price)
-                statement.setString(8, fechaCaducidad)
+                statement.setString(8, supermarket)
-                statement.setString(9, imageUrl)
+                statement.setString(9, fechaCaducidad)
-                statement.setString(10, userName)
+                statement.setString(10, imageUrl)
-                statement.setInt(11, productId)
+                statement.setString(11, userName)
+                statement.setInt(12, productId)
 
                 val rowsUpdated = statement.executeUpdate()
                 
@@ -184,6 +196,7 @@ class PantryRepository {
         minCantidad: Int,
         unidad: String,
         categoria: String,
+        location: String,
         price: Double,
         supermarket: String? = null,
         imageUrl: String?,
@@ -194,14 +207,15 @@ class PantryRepository {
             try {
                 val connection = getConnection()
                 val sql = """
-                    INSERT INTO productos (barcode, nombre, cantidad, cantidad_minima, unidad, categoria, precio, ultimo_supermercado, imagen_url, fecha_caducidad, visible, modificado_por) 
+                    INSERT INTO productos (barcode, nombre, cantidad, cantidad_minima, unidad, categoria, ubicacion, precio, ultimo_supermercado, imagen_url, fecha_caducidad, visible, modificado_por) 
-                    VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 1, ?)
+                    VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 1, ?)
                     ON DUPLICATE KEY UPDATE 
                     nombre = VALUES(nombre), 
                     cantidad = VALUES(cantidad), 
                     cantidad_minima = VALUES(cantidad_minima), 
                     unidad = VALUES(unidad), 
                     categoria = VALUES(categoria), 
+                    ubicacion = VALUES(ubicacion),
                     precio = VALUES(precio),
                     ultimo_supermercado = VALUES(ultimo_supermercado),
                     imagen_url = IF(VALUES(imagen_url) IS NULL, imagen_url, VALUES(imagen_url)), 
@@ -217,11 +231,12 @@ class PantryRepository {
                 statement.setInt(4, minCantidad)
                 statement.setString(5, unidad)
                 statement.setString(6, categoria)
-                statement.setDouble(7, price)
+                statement.setString(7, location)
-                statement.setString(8, supermarket)
+                statement.setDouble(8, price)
-                statement.setString(9, imageUrl)
+                statement.setString(9, supermarket)
-                statement.setString(10, fechaCaducidad)
+                statement.setString(10, imageUrl)
-                statement.setString(11, userName)
+                statement.setString(11, fechaCaducidad)
+                statement.setString(12, userName)
                 
                 val rowsInserted = statement.executeUpdate()
                 
@@ -275,7 +290,17 @@ class PantryRepository {
         return withContext(Dispatchers.IO) {
             try {
                 val connection = getConnection()
-                val sql = "SELECT * FROM productos WHERE id = ?"
+                val sql = """
+                    SELECT p.*, h.precio as mejor_precio, h.supermercado as mejor_supermercado 
+                    FROM productos p 
+                    LEFT JOIN historial_precios h ON h.id = (
+                        SELECT id FROM historial_precios 
+                        WHERE id_producto = p.id 
+                        ORDER BY precio ASC, fecha DESC 
+                        LIMIT 1
+                    )
+                    WHERE p.id = ?
+                """.trimIndent()
                 val statement = connection.prepareStatement(sql)
                 statement.setInt(1, productId)
                 val resultSet = statement.executeQuery()
@@ -289,8 +314,11 @@ class PantryRepository {
                         minQuantity = resultSet.getInt("cantidad_minima"),
                         unit = resultSet.getString("unidad") ?: "unidad",
                         category = resultSet.getString("categoria"),
+                        location = resultSet.getString("ubicacion") ?: "Despensa",
                         price = resultSet.getDouble("precio"),
                         lastSupermarket = resultSet.getString("ultimo_supermercado"),
+                        bestPrice = if (resultSet.getObject("mejor_precio") != null) resultSet.getDouble("mejor_precio") else null,
+                        bestPriceSupermarket = resultSet.getString("mejor_supermercado"),
                         imageUrl = resultSet.getString("imagen_url"),
                         expirationDate = resultSet.getString("fecha_caducidad"),
                         createdAt = resultSet.getString("fecha_alta"),
@@ -309,7 +337,17 @@ class PantryRepository {
         return withContext(Dispatchers.IO) {
             try {
                 val connection = getConnection()
-                val sql = "SELECT * FROM productos WHERE barcode = ?"
+                val sql = """
+                    SELECT p.*, h.precio as mejor_precio, h.supermercado as mejor_supermercado 
+                    FROM productos p 
+                    LEFT JOIN historial_precios h ON h.id = (
+                        SELECT id FROM historial_precios 
+                        WHERE id_producto = p.id 
+                        ORDER BY precio ASC, fecha DESC 
+                        LIMIT 1
+                    )
+                    WHERE p.barcode = ?
+                """.trimIndent()
                 val statement = connection.prepareStatement(sql)
                 statement.setString(1, barcode)
                 val resultSet = statement.executeQuery()
@@ -323,8 +361,11 @@ class PantryRepository {
                         minQuantity = resultSet.getInt("cantidad_minima"),
                         unit = resultSet.getString("unidad") ?: "unidad",
                         category = resultSet.getString("categoria"),
+                        location = resultSet.getString("ubicacion") ?: "Despensa",
                         price = resultSet.getDouble("precio"),
                         lastSupermarket = resultSet.getString("ultimo_supermercado"),
+                        bestPrice = if (resultSet.getObject("mejor_precio") != null) resultSet.getDouble("mejor_precio") else null,
+                        bestPriceSupermarket = resultSet.getString("mejor_supermercado"),
                         imageUrl = resultSet.getString("imagen_url"),
                         expirationDate = resultSet.getString("fecha_caducidad"),
                         createdAt = resultSet.getString("fecha_alta"),

app/src/main/java/com/example/despensapp/ui/screens/AddProductScreen.kt

@@ -77,6 +77,7 @@ fun AddProductScreen(onProductAdded: () -> Unit) {
     var productPrice by remember { mutableStateOf(0.0) }
     var productImageUrl by remember { mutableStateOf<String?>(null) }
     var expirationDate by remember { mutableStateOf<String?>(null) }
+    var selectedLocation by remember { mutableStateOf("Despensa") }
     var quantity by remember { mutableStateOf(1) }
     var minQuantity by remember { mutableStateOf(1) }
     var selectedUnit by remember { mutableStateOf("unidad") }
@@ -348,6 +349,49 @@ fun AddProductScreen(onProductAdded: () -> Unit) {
 
             Spacer(modifier = Modifier.height(8.dp))
 
+            // Selector de Ubicación
+            val locationMap = listOf(
+                "Despensa" to stringResource(R.string.location_despensa),
+                "Nevera" to stringResource(R.string.location_nevera),
+                "Congelador" to stringResource(R.string.location_congelador),
+                "Baño/Aseo" to stringResource(R.string.location_bano),
+                "Otros" to stringResource(R.string.location_otro)
+            )
+            var locationExpanded by remember { mutableStateOf(false) }
+
+            ExposedDropdownMenuBox(
+                expanded = locationExpanded,
+                onExpandedChange = { locationExpanded = !locationExpanded },
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                OutlinedTextField(
+                    value = locationMap.find { it.first == selectedLocation }?.second ?: selectedLocation,
+                    onValueChange = {},
+                    readOnly = true,
+                    label = { Text(stringResource(R.string.pantry_location_label)) },
+                    trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(expanded = locationExpanded) },
+                    modifier = Modifier.menuAnchor().fillMaxWidth(),
+                    colors = ExposedDropdownMenuDefaults.outlinedTextFieldColors(),
+                    leadingIcon = { Icon(Icons.Default.Place, contentDescription = null) }
+                )
+                ExposedDropdownMenu(
+                    expanded = locationExpanded,
+                    onDismissRequest = { locationExpanded = false }
+                ) {
+                    locationMap.forEach { (key, label) ->
+                        DropdownMenuItem(
+                            text = { Text(label) },
+                            onClick = {
+                                selectedLocation = key
+                                locationExpanded = false
+                            }
+                        )
+                    }
+                }
+            }
+
+            Spacer(modifier = Modifier.height(8.dp))
+
             // Selector de Unidad
             ExposedDropdownMenuBox(
                 expanded = unitsExpanded,
@@ -418,6 +462,7 @@ fun AddProductScreen(onProductAdded: () -> Unit) {
                                 minCantidad = minQuantity,
                                 unidad = selectedUnit,
                                 categoria = productCategory,
+                                location = selectedLocation,
                                 price = productPrice,
                                 supermarket = selectedSupermarket.ifEmpty { null },
                                 imageUrl = productImageUrl,

app/src/main/java/com/example/despensapp/ui/screens/PantryScreen.kt

@@ -60,6 +60,7 @@ fun PantryScreen(
     // Filters and Search
     var searchQuery by remember { mutableStateOf("") }
     var selectedCategory by remember { mutableStateOf<String?>(null) }
+    var selectedLocation by remember { mutableStateOf<String?>(null) }
     var showOnlyNearExpiry by remember { mutableStateOf(false) }
     var showShoppingList by remember { mutableStateOf(false) }
 
@@ -82,10 +83,11 @@ fun PantryScreen(
     val filteredProducts = allProducts.filter { product ->
         val matchesSearch = product.name.contains(searchQuery, ignoreCase = true)
         val matchesCategory = selectedCategory == null || product.category == selectedCategory
+        val matchesLocation = selectedLocation == null || product.location == selectedLocation
         val matchesExpiry = !showOnlyNearExpiry || isNearExpiry(product.expirationDate)
         val matchesLowStock = !showShoppingList || product.isLowStock
         
-        matchesSearch && matchesCategory && matchesExpiry && matchesLowStock
+        matchesSearch && matchesCategory && matchesLocation && matchesExpiry && matchesLowStock
     }
 
     val lowStockCount = allProducts.count { it.isLowStock }
@@ -261,6 +263,36 @@ fun PantryScreen(
                 )
             }
 
+            // Filtros de Ubicación
+            val locations = listOf(
+                "Despensa" to stringResource(R.string.location_despensa),
+                "Nevera" to stringResource(R.string.location_nevera),
+                "Congelador" to stringResource(R.string.location_congelador),
+                "Baño/Aseo" to stringResource(R.string.location_bano),
+                "Otros" to stringResource(R.string.location_otro)
+            )
+            
+            ScrollableTabRow(
+                selectedTabIndex = if (selectedLocation == null) 0 else locations.indexOfFirst { it.first == selectedLocation } + 1,
+                edgePadding = 16.dp,
+                divider = {},
+                containerColor = Color.Transparent,
+                indicator = {}
+            ) {
+                Tab(
+                    selected = selectedLocation == null,
+                    onClick = { selectedLocation = null },
+                    text = { Text(stringResource(R.string.pantry_filter_all)) }
+                )
+                locations.forEach { (key, label) ->
+                    Tab(
+                        selected = selectedLocation == key,
+                        onClick = { selectedLocation = key },
+                        text = { Text(label) }
+                    )
+                }
+            }
+
             // Categorías Scrollable
             ScrollableTabRow(
                 selectedTabIndex = if (selectedCategory == null) 0 else categories.indexOf(selectedCategory) + 1,
@@ -327,8 +359,6 @@ fun PantryScreen(
                                     product = product,
                                     onItemClick = { onNavigateToDetail(product.id) },
                                     onNavigateToPriceScanner = onNavigateToPriceScanner,
-                                    showPriceUpdater = showShoppingList,
-                                    onUpdatePrice = { onNavigateToPriceScanner(product.id) },
                                     onQuantityChange = { newQty ->
                                         scope.launch {
                                             val success = repository.updateProductQuantity(product.id, newQty, userName)
@@ -407,8 +437,6 @@ fun ProductItem(
     product: Product, 
     onItemClick: () -> Unit, 
     onNavigateToPriceScanner: (Int) -> Unit = {},
-    showPriceUpdater: Boolean = false,
-    onUpdatePrice: () -> Unit = {},
     onQuantityChange: (Int) -> Unit
 ) {
     Card(
@@ -485,6 +513,20 @@ fun ProductItem(
                                 fontSize = 14.sp,
                                 color = Color.Gray
                             )
+                            // Ubicación Badge
+                            Surface(
+                                modifier = Modifier.padding(top = 2.dp),
+                                shape = MaterialTheme.shapes.extraSmall,
+                                color = MaterialTheme.colorScheme.tertiaryContainer.copy(alpha = 0.5f),
+                                contentColor = MaterialTheme.colorScheme.onTertiaryContainer
+                            ) {
+                                Text(
+                                    text = product.location,
+                                    fontSize = 10.sp,
+                                    modifier = Modifier.padding(horizontal = 4.dp, vertical = 2.dp),
+                                    fontWeight = FontWeight.Bold
+                                )
+                            }
                         }
 
                         // Botones de acción arriba a la derecha en columna (+ arriba, - abajo)
@@ -498,16 +540,19 @@ fun ProductItem(
                             
                             Spacer(modifier = Modifier.height(4.dp))
                             
-                            // Nuevo Botón: Registrar solo Precio (Historial)
+                            // Nuevo Botón: Registrar solo Precio (Historial) - Ahora más visible
-                            IconButton(
+                            FilledTonalIconButton(
                                 onClick = { onNavigateToPriceScanner(product.id) },
-                                modifier = Modifier.size(36.dp)
+                                modifier = Modifier.size(36.dp),
+                                colors = IconButtonDefaults.filledTonalIconButtonColors(
+                                    containerColor = MaterialTheme.colorScheme.primaryContainer,
+                                    contentColor = MaterialTheme.colorScheme.onPrimaryContainer
+                                )
                             ) {
                                 Icon(
-                                    Icons.Default.LocalOffer, 
+                                    Icons.Default.Sell, 
                                     contentDescription = stringResource(R.string.pantry_update_price),
-                                    tint = MaterialTheme.colorScheme.primary,
+                                    modifier = Modifier.size(18.dp)
-                                    modifier = Modifier.size(20.dp)
                                 )
                             }
 
@@ -565,6 +610,28 @@ fun ProductItem(
                             }
                         }
 
+                        // Mejor Precio Histórico (con Fallback al precio actual si no hay historial)
+                        val displayBestPrice = product.bestPrice ?: if (product.price > 0) product.price else null
+                        val displayBestSupermarket = product.bestPriceSupermarket ?: product.lastSupermarket
+
+                        if (displayBestPrice != null && displayBestSupermarket != null) {
+                            Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.padding(top = 2.dp)) {
+                                Icon(
+                                    Icons.Default.Stars, 
+                                    contentDescription = null, 
+                                    modifier = Modifier.size(12.dp),
+                                    tint = Color(0xFF4CAF50) // Verde éxito
+                                )
+                                Spacer(modifier = Modifier.width(4.dp))
+                                Text(
+                                    text = stringResource(R.string.pantry_best_price, displayBestPrice, displayBestSupermarket),
+                                    fontSize = 11.sp,
+                                    color = Color(0xFF388E3C),
+                                    fontWeight = FontWeight.Bold
+                                )
+                            }
+                        }
+                        
                         if (product.createdAt != null) {
                             Row(verticalAlignment = Alignment.CenterVertically) {
                                 Icon(
@@ -633,21 +700,6 @@ fun ProductItem(
                                 }
                             }
                         }
-                        
-                        // Botón de OCR Precio (Solo en modo Lista Compra)
-                        if (showPriceUpdater) {
-                            Spacer(modifier = Modifier.width(8.dp))
-                            IconButton(
-                                onClick = onUpdatePrice,
-                                modifier = Modifier.size(32.dp)
-                            ) {
-                                Icon(
-                                    Icons.Default.QrCodeScanner, 
-                                    contentDescription = stringResource(R.string.pantry_update_price),
-                                    tint = MaterialTheme.colorScheme.primary
-                                )
-                            }
-                        }
                     }
                 }
             }

app/src/main/java/com/example/despensapp/ui/screens/ProductDetailScreen.kt

@@ -58,6 +58,7 @@ fun ProductDetailScreen(productId: Int, onBack: () -> Unit) {
     var editMinQuantity by remember { mutableStateOf(0) }
     var editUnit by remember { mutableStateOf("") }
     var editCategory by remember { mutableStateOf("") }
+    var editLocation by remember { mutableStateOf("Despensa") }
     var editPrice by remember { mutableStateOf(0.0) }
     var editSupermarket by remember { mutableStateOf("") }
     var editExpirationDate by remember { mutableStateOf<String?>(null) }
@@ -202,6 +203,7 @@ fun ProductDetailScreen(productId: Int, onBack: () -> Unit) {
                     editMinQuantity = p.minQuantity
                     editUnit = p.unit
                     editCategory = p.category
+                    editLocation = p.location
                     editPrice = p.price
                     editSupermarket = p.lastSupermarket ?: ""
                     editExpirationDate = p.expirationDate
@@ -256,6 +258,7 @@ fun ProductDetailScreen(productId: Int, onBack: () -> Unit) {
                                         minCantidad = editMinQuantity,
                                         unidad = editUnit,
                                         category = editCategory,
+                                        location = editLocation,
                                         price = editPrice,
                                         supermarket = editSupermarket.ifEmpty { null },
                                         fechaCaducidad = editExpirationDate,
@@ -346,6 +349,7 @@ fun ProductDetailScreen(productId: Int, onBack: () -> Unit) {
                             Spacer(modifier = Modifier.height(24.dp))
 
                             DetailRow(icon = Icons.Default.Inventory, label = stringResource(R.string.detail_stock_label), value = stringResource(R.string.pantry_units_label, p.quantity, p.unit))
+                            DetailRow(icon = Icons.Default.Place, label = stringResource(R.string.pantry_location_label), value = p.location)
                             DetailRow(icon = Icons.Default.Payments, label = "Precio unitario", value = stringResource(R.string.pantry_price_label, p.price))
                             
                             if (p.lastSupermarket != null) {
@@ -459,6 +463,49 @@ fun ProductDetailScreen(productId: Int, onBack: () -> Unit) {
 
                             Spacer(modifier = Modifier.height(8.dp))
 
+                            // Selector de Ubicación
+                            val locationMap = listOf(
+                                "Despensa" to stringResource(R.string.location_despensa),
+                                "Nevera" to stringResource(R.string.location_nevera),
+                                "Congelador" to stringResource(R.string.location_congelador),
+                                "Baño/Aseo" to stringResource(R.string.location_bano),
+                                "Otros" to stringResource(R.string.location_otro)
+                            )
+                            var locationExpanded by remember { mutableStateOf(false) }
+
+                            ExposedDropdownMenuBox(
+                                expanded = locationExpanded,
+                                onExpandedChange = { locationExpanded = !locationExpanded },
+                                modifier = Modifier.fillMaxWidth()
+                            ) {
+                                OutlinedTextField(
+                                    value = locationMap.find { it.first == editLocation }?.second ?: editLocation,
+                                    onValueChange = {},
+                                    readOnly = true,
+                                    label = { Text(stringResource(R.string.pantry_location_label)) },
+                                    trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(expanded = locationExpanded) },
+                                    modifier = Modifier.menuAnchor().fillMaxWidth(),
+                                    colors = ExposedDropdownMenuDefaults.outlinedTextFieldColors(),
+                                    leadingIcon = { Icon(Icons.Default.Place, contentDescription = null) }
+                                )
+                                ExposedDropdownMenu(
+                                    expanded = locationExpanded,
+                                    onDismissRequest = { locationExpanded = false }
+                                ) {
+                                    locationMap.forEach { (key, label) ->
+                                        DropdownMenuItem(
+                                            text = { Text(label) },
+                                            onClick = {
+                                                editLocation = key
+                                                locationExpanded = false
+                                            }
+                                        )
+                                    }
+                                }
+                            }
+
+                            Spacer(modifier = Modifier.height(8.dp))
+
                             SupermarketDropdown(
                                 selectedSupermarket = editSupermarket,
                                 onSupermarketChange = { editSupermarket = it },

app/src/main/java/com/example/despensapp/ui/screens/SettingsScreen.kt

@@ -1,10 +1,12 @@
 package com.example.despensapp.ui.screens
 
+import android.content.Intent
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.selection.selectable
 import androidx.compose.foundation.selection.selectableGroup
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material.icons.filled.Share
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
@@ -12,6 +14,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.semantics.Role
+import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import com.example.despensapp.R
 import com.example.despensapp.data.session.UserSession
@@ -120,6 +123,57 @@ fun SettingsScreen(onBack: () -> Unit) {
                     )
                 }
             }
+
+            Spacer(modifier = Modifier.height(24.dp))
+            HorizontalDivider()
+            Spacer(modifier = Modifier.height(16.dp))
+
+            Text(
+                text = stringResource(R.string.settings_family_title),
+                style = MaterialTheme.typography.titleMedium,
+                modifier = Modifier.padding(bottom = 16.dp)
+            )
+
+            val familyCode = remember { UserSession.getFamilyCode(context) ?: "DEFAULT" }
+
+            Card(
+                modifier = Modifier.fillMaxWidth(),
+                colors = CardDefaults.cardColors(
+                    containerColor = MaterialTheme.colorScheme.surfaceVariant
+                )
+            ) {
+                Column(
+                    modifier = Modifier.padding(16.dp),
+                    horizontalAlignment = Alignment.CenterHorizontally
+                ) {
+                    Text(
+                        text = stringResource(R.string.settings_family_code_label),
+                        style = MaterialTheme.typography.bodyMedium
+                    )
+                    Text(
+                        text = familyCode,
+                        style = MaterialTheme.typography.headlineMedium,
+                        fontWeight = FontWeight.Bold,
+                        color = MaterialTheme.colorScheme.primary,
+                        modifier = Modifier.padding(vertical = 8.dp)
+                    )
+                    
+                    Button(
+                        onClick = {
+                            val shareIntent = Intent(Intent.ACTION_SEND).apply {
+                                type = "text/plain"
+                                putExtra(Intent.EXTRA_TEXT, context.getString(R.string.settings_family_invite_message, familyCode))
+                            }
+                            context.startActivity(Intent.createChooser(shareIntent, context.getString(R.string.share)))
+                        },
+                        modifier = Modifier.fillMaxWidth()
+                    ) {
+                        Icon(Icons.Default.Share, contentDescription = null)
+                        Spacer(Modifier.width(8.dp))
+                        Text(stringResource(R.string.settings_family_invite_button))
+                    }
+                }
+            }
         }
     }
 }

app/src/main/res/values/strings.xml

@@ -70,6 +70,13 @@
     <string name="pantry_history_title">Historial de Precios</string>
     <string name="pantry_no_history">No hay historial de precios registrado</string>
     <string name="pantry_last_supermarket">Visto en: %1$s</string>
+    <string name="pantry_best_price">Mejor: %1$.2f € (%2$s)</string>
+    <string name="pantry_location_label">Ubicación</string>
+    <string name="location_despensa">Despensa</string>
+    <string name="location_nevera">Nevera</string>
+    <string name="location_congelador">Congelador</string>
+    <string name="location_bano">Baño/Aseo</string>
+    <string name="location_otro">Otros</string>
 
     <!-- Supermarkets -->
     <string name="supermarket_mercadona">MERCADONA</string>
@@ -150,6 +157,10 @@
     <string name="settings_freq_weekly">Una vez a la semana</string>
     <string name="settings_save_success">Configuración guardada correctamente</string>
     <string name="settings_biometric_enable">Habilitar desbloqueo biométrico</string>
+    <string name="settings_family_title">Mi Familia</string>
+    <string name="settings_family_code_label">Tu Código de Familia:</string>
+    <string name="settings_family_invite_button">Invitar Familiar</string>
+    <string name="settings_family_invite_message">¡Hola! Únete a nuestra despensa compartida en Despensapp. \n\nUsa este código al registrarte: *%1$s* \n\n¡Así sabremos qué falta en casa en tiempo real! 🥫🛒</string>
     <string name="biometric_title">Desbloqueo de Despensapp</string>
     <string name="biometric_subtitle">Usa tu huella o rostro para entrar</string>
     <string name="biometric_error_not_available">Tu dispositivo no soporta biometría o no está configurada</string>