Small encapsulation of react native's AsyncStorage

/** * @overview A minimalistic wrapper around React Native's AsyncStorage. * @license MIT */ import { AsyncStorage } from 'react-native'; import merge from 'lodash'; const store = { /** * Get a one or more value for a key or array of keys from AsyncStorage * @param {String|Array} key A key or array of keys * @return {Promise} */ get(key) { if(!Array.isArray(key)) { return AsyncStorage.getItem(key).then(value => { return JSON.parse(value); }); } else { return AsyncStorage.multiGet(key).then(values => { return values.map(value => { return JSON.parse(value[1]); }); }); } }, /** * Save a key value pair or a series of key value pairs to AsyncStorage. * @param {String|Array} key The key or an array of key/value pairs * @param {Any} value The value to save * @return {Promise} */ save(key, value) { if(!Array.isArray(key)) { return AsyncStorage.setItem(key, JSON.stringify(value)); } else { var pairs = key.map(function(pair) { return [pair[0], JSON.stringify(pair[1])]; }); return AsyncStorage.multiSet(pairs); } }, /** * Updates the value in the store for a given key in AsyncStorage. If the value is a string it will be replaced. If the value is an object it will be deep merged. * @param {String} key The key * @param {Value} value The value to update with * @return {Promise} */ update(key, value) { return store.get(key).then(item => { value = typeof value === 'string' ? value : merge({}, item, value); return AsyncStorage.setItem(key, JSON.stringify(value)); }); }, /** * Delete the value for a given key in AsyncStorage. * @param {String|Array} key The key or an array of keys to be deleted * @return {Promise} */ delete(key) { if (Array.isArray(key)) { return AsyncStorage.multiRemove(key); } else { return AsyncStorage.removeItem(key); } }, /** * Get all keys in AsyncStorage. * @return {Promise} A promise which when it resolves gets passed the saved keys in AsyncStorage. */ keys() { return AsyncStorage.getAllKeys(); } }; export default store ; 然后你需要的地方import store 进来就好了。 使用方法 store.save(key,value) .then(()=>{store.get(key)}) .then(()=>{store.delete(key)}) .catch(error()=>{console.log(error)}) 注意在调用时请使用 ansyc await