import React, { useState } from 'react';
import { View, Text, Button } from 'react-native';

function Counter() {
  const [count, setCount] = useState(0);
  return (
    
      {count}
       setCount(count + 1)} />
    
  );
}
export default Counter;
    

import React, { useEffect } from 'react';
import { View, Text } from 'react-native';

function DataFetcher() {
  useEffect(() => {
    // Fetch data when component mounts
    fetchData();
  }, []);
  
  return (
    
      Data Loading...
    
  );
}
export default DataFetcher;
    

// styles.js
import { StyleSheet } from 'react-native';
export default StyleSheet.create({
  container: {
    flex: 1,
    padding: 20,
    backgroundColor: '#fff'
  },
  title: {
    fontSize: 20,
    fontWeight: 'bold'
  }
});
    

import { NavigationContainer } from '@react-navigation/native';
import { createStackNavigator } from '@react-navigation/stack';
import HomeScreen from './HomeScreen';
import DetailsScreen from './DetailsScreen';

const Stack = createStackNavigator();

function App() {
  return (
    
      
        
        
      
    
  );
}
export default App;
    

// store.js
import { createStore } from 'redux';

const initialState = { count: 0 };
function counterReducer(state = initialState, action) {
  switch (action.type) {
    case 'INCREMENT': return { count: state.count + 1 };
    default: return state;
  }
}
export const store = createStore(counterReducer);

// App.js
import React from 'react';
import { Provider } from 'react-redux';
import { store } from './store';
import Counter from './Counter';

export default function App() {
  return (
    
      
    
  );
}
    

import axios from 'axios';

axios.get('https://api.example.com/data')
  .then(response => console.log(response.data))
  .catch(error => console.error(error));
    

async function fetchData() {
  try {
    const response = await fetch('https://api.example.com/data');
    const json = await response.json();
    console.log(json);
  } catch (error) {
    console.error(error);
  }
}
    

import AsyncStorage from '@react-native-async-storage/async-storage';

const storeData = async (value) => {
  try {
    await AsyncStorage.setItem('@storage_Key', value);
  } catch (e) {
    console.error(e);
  }
};
    

import * as SecureStore from 'expo-secure-store';

async function save(key, value) {
  await SecureStore.setItemAsync(key, value);
}
    

import SQLite from 'react-native-sqlite-storage';
const db = SQLite.openDatabase({ name: 'my.db' });
db.transaction(tx => {
  tx.executeSql('CREATE TABLE IF NOT EXISTS Users (id INTEGER PRIMARY KEY, name TEXT)');
});
    

import React, { useCallback, useMemo } from 'react';

function Example({ items }) {
  const memoizedValue = useMemo(() => items.reduce((a, b) => a + b, 0), [items]);
  const memoizedCallback = useCallback(() => console.log('Clicked!'), []);
  
  return (
    // Use memoizedValue and memoizedCallback in your component
    null
  );
}
    

import React, { useRef, useEffect } from 'react';
import { Animated, View } from 'react-native';

function FadeInView() {
  const fadeAnim = useRef(new Animated.Value(0)).current;
  useEffect(() => {
    Animated.timing(fadeAnim, { toValue: 1, duration: 500, useNativeDriver: true }).start();
  }, [fadeAnim]);
  
  return (
    
      
    
  );
}
export default FadeInView;
    

// MyNativeModule.java
package com.myapp;
import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.bridge.ReactContextBaseJavaModule;
import com.facebook.react.bridge.ReactMethod;
import com.facebook.react.bridge.Promise;

public class MyNativeModule extends ReactContextBaseJavaModule {
  public MyNativeModule(ReactApplicationContext reactContext) {
    super(reactContext);
  }
  @Override
  public String getName() {
    return "MyNativeModule";
  }
  @ReactMethod
  public void getDeviceName(Promise promise) {
    try {
      String deviceName = android.os.Build.MODEL;
      promise.resolve(deviceName);
    } catch (Exception e) {
      promise.reject("Error", e);
    }
  }
}
    

// MyNativeModule.m
#import "React/RCTBridgeModule.h"

@interface MyNativeModule : NSObject 
@end

@implementation MyNativeModule
RCT_EXPORT_MODULE();
RCT_EXPORT_METHOD(getDeviceName:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject) {
  @try {
    NSString *deviceName = [[UIDevice currentDevice] name];
    resolve(deviceName);
  } @catch (NSException *exception) {
    reject(@"error", @"Error getting device name", nil);
  }
}
@end
    

project.ext.react = [
  enableHermes: true,  // Set to false to disable Hermes
]
    

// Example: Linking an Android SDK in settings.gradle
include ':myNativeSDK'
project(':myNativeSDK').projectDir = new File(rootProject.projectDir, '../node_modules/myNativeSDK/android')
    

import styled from 'styled-components/native';

const StyledButton = styled.TouchableOpacity\`
  background-color: #007bff;
  padding: 10px;
  border-radius: 5px;
\`;

export default StyledButton;
    

import React from 'react';
import { ThemeProvider } from 'styled-components/native';

const theme = {
  primary: '#007bff',
  background: '#fff'
};

function App() {
  return (
    
      {/* Your app components */}
    
  );
}
export default App;
    

import { Platform } from 'react-native';

const styles = {
  ...Platform.select({
    ios: { padding: 10 },
    android: { padding: 20 },
  }),
};
    

import { Dimensions } from 'react-native';
const { width, height } = Dimensions.get('window');
console.log('Width:', width, 'Height:', height);