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}

 1 import AsyncStorage from '@react-native-async-storage/async-storage';
 2 
 3 export const SaveToken = value => {
 4   AsyncStorage.setItem('token_key', value);
 5 };
 6 
 7 export const GetToken = async () => {
 8   value = await AsyncStorage.getItem('token_key');
 9   return value;
10 };

组件取值:

1 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