Initial commit

.gitignore

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+# Learn more https://docs.github.com/en/get-started/getting-started-with-git/ignoring-files
+
+# dependencies
+node_modules/
+
+# Expo
+.expo/
+dist/
+web-build/
+expo-env.d.ts
+
+# Native
+.kotlin/
+*.orig.*
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+
+# Metro
+.metro-health-check*
+
+# debug
+npm-debug.*
+yarn-debug.*
+yarn-error.*
+
+# macOS
+.DS_Store
+*.pem
+
+# local env files
+.env*.local
+
+# typescript
+*.tsbuildinfo
+
+# generated native folders
+/ios
+/android

App.tsx

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+import React, { useState, useEffect } from 'react';
+import { View, Text, TextInput, Button, FlatList, TouchableOpacity, StyleSheet } from 'react-native';
+import AsyncStorage from '@react-native-async-storage/async-storage';
+
+interface Product {
+  id: string;
+  name: string;
+  price: number;
+}
+
+export default function App() {
+  const [products, setProducts] = useState<Product[]>([]);
+  const [name, setName] = useState('');
+  const [price, setPrice] = useState('');
+  const [editId, setEditId] = useState<string | null>(null);
+
+  useEffect(() => {
+    loadProducts();
+  }, []);
+
+  const loadProducts = async () => {
+    const data = await AsyncStorage.getItem('products');
+    if (data) setProducts(JSON.parse(data));
+  };
+
+  const saveProducts = async (newProducts: Product[]) => {
+    await AsyncStorage.setItem('products', JSON.stringify(newProducts));
+    setProducts(newProducts);
+  };
+
+  const addProduct = () => {
+    const newProduct = { id: Date.now().toString(), name, price: parseFloat(price) };
+    saveProducts([...products, newProduct]);
+    setName('');
+    setPrice('');
+  };
+
+  const updateProduct = () => {
+    const updated = products.map(p => p.id === editId ? { ...p, name, price: parseFloat(price) } : p);
+    saveProducts(updated);
+    setEditId(null);
+    setName('');
+    setPrice('');
+  };
+
+  const deleteProduct = (id: string) => {
+    saveProducts(products.filter(p => p.id !== id));
+  };
+
+  const sortByPrice = () => {
+    saveProducts([...products].sort((a, b) => a.price - b.price));
+  };
+
+  return (
+    <View style={styles.container}>
+      <TextInput style={styles.input} placeholder="Név" value={name} onChangeText={setName} />
+      <TextInput style={styles.input} placeholder="Ár" value={price} onChangeText={setPrice} keyboardType="numeric" />
+      <Button title={editId ? 'Frissítés' : 'Hozzáadás'} onPress={editId ? updateProduct : addProduct} color="#ff00ff" />
+      <Button title="Rendezés ár szerint" onPress={sortByPrice} color="#ff00ff" />
+      <FlatList
+        data={products}
+        keyExtractor={item => item.id}
+        renderItem={({ item }) => (
+          <View style={styles.item}>
+            <Text style={{ color: '#ffffff' }}>{item.name} - {item.price} Ft</Text>
+            <View style={styles.buttons}>
+              <TouchableOpacity onPress={() => { setEditId(item.id); setName(item.name); setPrice(item.price.toString()); }}>
+                <Text style={styles.edit}>✏️</Text>
+              </TouchableOpacity>
+              <TouchableOpacity onPress={() => deleteProduct(item.id)}>
+                <Text style={styles.delete}>🗑️</Text>
+              </TouchableOpacity>
+            </View>
+          </View>
+        )}
+      />
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: { flex: 1, padding: 16, backgroundColor: '#000000' },
+  input: { borderWidth: 1, borderColor: '#333333', padding: 8, marginBottom: 8, borderRadius: 4, backgroundColor: '#1a1a1a', color: '#ffffff' },
+  item: { padding: 16, borderBottomWidth: 1, borderBottomColor: '#333333', flexDirection: 'row', justifyContent: 'space-between' },
+  buttons: { flexDirection: 'row', gap: 8 },
+  edit: { fontSize: 18 },
+  delete: { fontSize: 18 },
+});

app.json

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+{
+  "expo": {
+    "name": "feladat3-termekkezelo",
+    "slug": "feladat3-termekkezelo",
+    "version": "1.0.0",
+    "orientation": "portrait",
+    "icon": "./assets/icon.png",
+    "userInterfaceStyle": "light",
+    "newArchEnabled": true,
+    "splash": {
+      "image": "./assets/splash-icon.png",
+      "resizeMode": "contain",
+      "backgroundColor": "#ffffff"
+    },
+    "ios": {
+      "supportsTablet": true
+    },
+    "android": {
+      "adaptiveIcon": {
+        "foregroundImage": "./assets/adaptive-icon.png",
+        "backgroundColor": "#ffffff"
+      }
+    },
+    "web": {
+      "favicon": "./assets/favicon.png"
+    }
+  }
+}

index.ts

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+import { registerRootComponent } from 'expo';
+
+import App from './App';
+
+// registerRootComponent calls AppRegistry.registerComponent('main', () => App);
+// It also ensures that whether you load the app in Expo Go or in a native build,
+// the environment is set up appropriately
+registerRootComponent(App);

package.json

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+{
+  "name": "feladat3-termekkezelo",
+  "version": "1.0.0",
+  "main": "index.ts",
+  "scripts": {
+    "start": "expo start",
+    "android": "expo start --android",
+    "ios": "expo start --ios",
+    "web": "expo start --web"
+  },
+  "dependencies": {
+    "@react-native-async-storage/async-storage": "^2.2.0",
+    "expo": "~54.0.33",
+    "expo-status-bar": "~3.0.9",
+    "firebase": "^12.9.0",
+    "react": "19.1.0",
+    "react-native": "0.81.5"
+  },
+  "devDependencies": {
+    "@types/react": "~19.1.0",
+    "typescript": "~5.9.2"
+  },
+  "private": true
+}

tsconfig.json

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+{
+  "extends": "expo/tsconfig.base",
+  "compilerOptions": {
+    "strict": true
+  }
+}