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Offline Support

Overview​

The mobile app supports offline functionality with local data caching and background sync.

Features​

  • Local data storage with AsyncStorage
  • Offline data access
  • Background sync when online
  • Conflict resolution

Implementation​

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

// Cache data
await AsyncStorage.setItem('students', JSON.stringify(students));

// Retrieve cached data
const cached = await AsyncStorage.getItem('students');

Sync Strategy​

  1. Load cached data immediately
  2. Fetch fresh data in background
  3. Update cache and UI
  4. Queue offline changes
  5. Sync when online