import { create, MMKVLoader, MMKVInstance, ProcessingModes } from 'react-native-mmkv-storage'; const MMKV = new MMKVLoader() // MODES.MULTI_PROCESS = ACCESSIBLE BY APP GROUP (iOS) .setProcessingMode(ProcessingModes.MULTI_PROCESS) .withEncryption() .initialize(); export const useUserPreferences = create(MMKV); class UserPreferences { private mmkv: MMKVInstance; constructor() { this.mmkv = MMKV; } getString(key: string): string | null { try { return this.mmkv.getString(key) || null; } catch { return null; } } setString(key: string, value: string): boolean | undefined { return this.mmkv.setString(key, value) || undefined; } getBool(key: string): boolean | null { try { return this.mmkv.getBool(key) || null; } catch { return null; } } setBool(key: string, value: boolean): boolean | undefined { return this.mmkv.setBool(key, value) || undefined; } getMap(key: string): object | null { try { return this.mmkv.getMap(key) || null; } catch { return null; } } setMap(key: string, value: object): boolean | undefined { return this.mmkv.setMap(key, value) || undefined; } removeItem(key: string): boolean | undefined { return this.mmkv.removeItem(key) || undefined; } } const userPreferences = new UserPreferences(); export default userPreferences;