React native 仅在异步函数中允许等待错误反应本机

我不熟悉react native并尝试使用

await AsyncStorage.setItem（'user'，res[1].data）将用户obejct保存在应用程序存储中
但我得到的错误如下：

我已经使handleLogin

异步，但它没有解决错误。存储用户obejct的正确方法是什么？

建议您使用，通过它可以同步访问异步存储中的任何数据

   navigateToHome = async (user) => {
        const { navigate } = this.props.navigation;
        await AsyncStorage.setItem('user', user);
        navigate('Home');
    }

    handleLogin = async() => {
        NetInfo.fetch().then(state => {
            if (state.isConnected) {

      
        const data = {
            email: this.state.userName,
            password: this.state.password
        };

        fetch(`${DOMAIN_URL}/login`, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify(data)
        })
            .then((response) => {
                const statusCode = response.status.toString();
                const data = response.json();
                return Promise.all([statusCode, data]);
            })
            .then((res) => {

                if (res[0] == 200) {
                    navigateToHome(res[1].data);
                }else{
                    Alert.alert(
                        res[1].message
                    );
                }
            })
            .catch((error) => {
                console.error(error);
            });

            }
            else {
                Alert.alert(
                    "No Internet!",
                    "Needs to connect to the internet in order to work. Please connect tablet to wifi and try again.",
                    [
                        {
                            text: "OK",
                            onPress: () => { }
                        }
                    ]
                );
            };
        })
    };

---

await

在

的回调函数中。然后（）

该箭头函数不是异步的。我创建了一个新的异步函数，名为navigateToom，它工作正常。

   navigateToHome = async (user) => {
        const { navigate } = this.props.navigation;
        await AsyncStorage.setItem('user', user);
        navigate('Home');
    }

    handleLogin = async() => {
        NetInfo.fetch().then(state => {
            if (state.isConnected) {

      
        const data = {
            email: this.state.userName,
            password: this.state.password
        };

        fetch(`${DOMAIN_URL}/login`, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify(data)
        })
            .then((response) => {
                const statusCode = response.status.toString();
                const data = response.json();
                return Promise.all([statusCode, data]);
            })
            .then((res) => {

                if (res[0] == 200) {
                    navigateToHome(res[1].data);
                }else{
                    Alert.alert(
                        res[1].message
                    );
                }
            })
            .catch((error) => {
                console.error(error);
            });

            }
            else {
                Alert.alert(
                    "No Internet!",
                    "Needs to connect to the internet in order to work. Please connect tablet to wifi and try again.",
                    [
                        {
                            text: "OK",
                            onPress: () => { }
                        }
                    ]
                );
            };
        })
    };