Mobile React Native

📱 Mobile React Native

React Native best practices ve performance optimization.

📁 1. Proje Yapısı

src/
├── components/
│   ├── common/        # Reusable
│   └── screens/       # Screen components
├── hooks/             # Custom hooks
├── services/          # API, storage
├── store/             # State (Zustand)
├── navigation/
└── App.tsx

⚡ 2. Performance

// FlatList optimizasyonu
<FlatList
  data={items}
  keyExtractor={(item) => item.id}
  removeClippedSubviews={true}
  maxToRenderPerBatch={10}
  windowSize={5}
  getItemLayout={(data, index) => ({
    length: ITEM_HEIGHT,
    offset: ITEM_HEIGHT * index,
    index,
  })}
/>

// Memoization
const Component = React.memo(({ data }) => { });
const callback = useCallback(() => {}, [deps]);
const value = useMemo(() => compute(), [deps]);

🔐 3. Secure Storage

// ❌ AsyncStorage güvenli değil
// ✅ SecureStore kullan
import * as SecureStore from 'expo-secure-store';

await SecureStore.setItemAsync('token', userToken);
const token = await SecureStore.getItemAsync('token');

🧭 4. Navigation

type RootStackParamList = {
  Home: undefined;
  Profile: { userId: string };
};

const Stack = createNativeStackNavigator<RootStackParamList>();

📦 5. State (Zustand)

import { create } from 'zustand';
import { persist } from 'zustand/middleware';

const useAuthStore = create(
  persist(
    (set) => ({
      user: null,
      login: (user) => set({ user }),
      logout: () => set({ user: null }),
    }),
    { name: 'auth-storage' }
  )
);

📱 6. Platform-Specific

import { Platform } from 'react-native';

const padding = Platform.select({ ios: 20, android: 0 });

// Dosya bazlı: Button.ios.tsx, Button.android.tsx

Mobile React Native v1.1 - Enhanced

🔄 Workflow

Kaynak: React Native Performance Guide & Expo Guideline

Aşama 1: Setup & Architecture

• Framework: Expo (Managed Workflow) ile başla, expo-router v3 kullan.
• State: Zustand veya TanStack Query ile server/client state ayrımını yap.
• Styling: NativeWind (Tailwind) veya Restyle ile tutarlı tasarım sistemi kur.

Aşama 2: Performance Optimization

• Lists: FlatList yerine FlashList (Shopify) kullan (5x performans).
• Images: expo-image ile caching ve blurhash desteği ekle.
• Bundle: Hermes engine'i aktifleştir ve bundle size analizi yap.

Aşama 3: Native Modules & Release

• Native: Gerekirse Custom Native Module (Turbo Modules) yaz.
• Updates: expo-updates ile store onayı beklemeden OTA (Over-the-Air) güncelleme yap.
• Profiling: Flipper veya React DevTools ile FPS ve Memory Leak kontrolü yap.

Kontrol Noktaları