TypeError:未定义不是对象-AsyncStorage

Question

嗨，我似乎无法解决这个问题——我在React Native组件中使用AsyncStorage来加载文件路径字符串。当组件安装时，我收到了以下错误，并且没有看到我在这里做得不正确，因为它几乎遵循了文档中的示例。任何帮助都将不胜感激。

"TypeError:undefined不是对象(正在评估"_asyncStorage.asyncStorage.getKeys"(

这是我的代码：

import React, { Component } from 'react';
import BasicCard from './cards'
import {AsyncStorage} from '@react-native-community/async-storage'
import { 
StyleSheet,    
ScrollView,  
} from 'react-native';

class NewPost extends Component{
state={
content:[]
}
componentDidMount(){
this.getContent(this.getKeys())
}
getKeys = async () => {
try{
return await AsyncStorage.getKeys()
}catch (e) {
alert(e)
}
}
getContent = async (keys) => {
try{
await AsyncStorage.multiGet(keys, store)
this.setState({content:store})
} catch (e) {
alert ( e )
}
}

render(){
return( 
<ScrollView style={styles.container}>
{this.state.content.map((result,i,item) => (
<BasicCard 
imgName={item[i][0]}
imgPath={item[i[1]]} />
))}
</ScrollView>
)
}
}
export default NewPost;
const styles = StyleSheet.create({
container: {
flex: 1,
flexDirection: 'column',
backgroundColor: 'black',
},   
});

Answer 1

asyncStorage 中没有名为getkeys的函数

请参阅此链接了解异步存储中的可用功能

getKeys = async () => {
try{
return await AsyncStorage.getKeys()
}catch (e) {
alert(e)
}
}

更改为该

getKeys = async () => {
try{
return await AsyncStorage.getAllKeys()
}catch (e) {
alert(e)
}
}