89 lines
3.1 KiB
TypeScript
89 lines
3.1 KiB
TypeScript
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 },
|
||
});
|