React Native AsyncStorage 未获取数据

问题描述

我使用以下代码来存储和检索数据.但它不能如我所愿.

I am using following code for storing and retrieving data. But it isn't working as I want.

设置数据:

async setDataFromApi(token, json) {
const {goBack} = this.props.navigation; // Navigation
let iext_inf = {
  token: token,
  userid: json.data.id,
  username: json.data.username,
  image: json.data.profile_picture,
};
console.log(iext_inf);
try {
  await AsyncStorage.setItem('iext_inf', JSON.stringify(iext_inf) ); // Stuck here
  goBack();
} catch (error) {
  console.log("Error");
}
}

获取数据:

async componentWillMount() {
    try {
      const value = await AsyncStorage.getItem("iext_inf"); //Stuck here
console.log(value);

  if (value !== null){
    this.setState({
      data : value
    })
  }

  if ( this.state.data !== null ) {
    this.props.navigation.navigate('Home', {'access_token': value});
  }

} catch (error) {
  console.log(error);
}
}

我做错了什么?我尝试添加单个数据并检索它并且由于某种原因它起作用了.现在不是了.提前致谢.

What am I doing wrong? I tried adding single data and retrieving it and it worked for some reason. Now it's not.Thank you in advance.

推荐答案

您正在传递一个对象，尝试设置字符串而不是一个对象.我不确定 JSON.stringfy() 是否适用于 AsyncStorage.

You are passing an object try to set string not an object. I am not sure JSON.stringfy() works for AsyncStorage.

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