React Native持久化存储

导入:

注意: 新版本的React Native不再集成async-storage

npm install @react-native-async-storage /async-storage

yarn add @react-native-async-storage /async-storage

 

使用:

注意: getItem必须配合async与await使用否则将会显示{"_h": 0, "_i": 0, "_j": null, "_k": null}

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

export const SaveToken = value => {
  AsyncStorage.setItem('token_key', value);
};

export const GetToken = async () => {
  value = await AsyncStorage.getItem('token_key');
  return value;
};

组件取值:

try {
2　　 const token = await GetToken();
3　　 console.log('token', token);
4　　 } catch (error) {
5　　 console.log('error', error);
6 }

 

官方文档: https://react-native-async-storage.github.io/async-storage