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如何将状态设置为有效载荷的状态？我希望我的全局状态有最近的变化，而不是有效载荷。请有人解释为什么/如何发生这种情况？我是否需要创建另一个减速器/效果来设置状态？我想在应用程序中将此状态设置为全局。我将不胜感激。

我正在使用以下内容：

  • Firebase Firestore
  • Redux复赛
  • 反应原生

这是我的调试器（图片）。

下面代码的结果。

这是我的代码：

索引.js

import { init } from '@rematch/core'
import user from './user'

const models = {
    user,
}

const store = init({
    models,
})

export default { getState, dispatch } = store

模型.js（用户.js）

import firebase from 'firebase';
import db from '../config/firebase'

const user = {
    state: {},
    reducers: {
        login(userData) {
            return userData
        },
        email(state, email) {
            return { ...state, email }
        },
        password(state, password) {
            return { ...state, password }
        },
        username(state, username) {
            return { ...state, username }
        },
        fullname(state, fullname) {
            return { ...state, fullname }
        },
    },
    effects: () => ({
        async signup() {
            const { email, password, username, fullname } = getState().user
            const response = await firebase.auth().createUserWithEmailAndPassword(email, password)
            if (response.user.uid) {
                const userData = {
                    uid: response.user.uid,
                    email: email,
                    username: username,
                    fullname: fullname,
                    bio: 'test',
                    gender: 'teste',
                    phoneNum: 'teste',
                    profilePic: 'te',
                    status: 'teste',
                }

                db.collection('users').doc(response.user.uid).set(userData)
                alert(userData.uid)
                return dispatch.user.login(userData)
            }
        }
    })
}

export default user

注册.js

import * as React from 'react';
import {
    TextInput,
    Text,
    KeyboardAvoidingView,
    SafeAreaView,
    TouchableOpacity,
    Alert,
}
    from 'react-native';
import styles from '../styles'
import { connect } from 'react-redux';
import '@expo/vector-icons';
import 'redux';

class Signup extends React.Component {

    onPress = () => {
        this.props.SignUp()
        this.props.navigation.navigate('Home')
    }

    render() {
        const { routeName } = this.props.navigation.state
        return (
            <SafeAreaView style={styles.container}>
                <KeyboardAvoidingView behavior='position'>
                    <Text style={styles.mainText}>
                        EMAIL
                    </Text>
                    <TextInput
                        style={styles.inputText}
                        editable={routeName === 'Signup' ? true : false}
                        value={this.props.user.email}
                        onChangeText={input => this.props.setEmail(input)}
                    />
                    <Text style={styles.mainText}>
                        PASSWORD
                    </Text>
                    <TextInput
                        style={styles.inputText}
                        editable={routeName === 'Signup' ? true : false}
                        value={this.props.user.password}
                        onChangeText={input => this.props.setPassword(input)}
                        secureTextEntry={true}
                    />
                    <Text style={styles.mainText}>
                        USERNAME
                    </Text>
                    <TextInput
                        style={styles.inputText}
                        value={this.props.user.username}
                        onChangeText={input => this.props.setUserName(input)}
                    />
                    <Text style={styles.mainText}>
                        FULL NAME
                    </Text>
                    <TextInput
                        style={styles.inputText}
                        value={this.props.user.fullname}
                        onChangeText={input => this.props.setFullName(input)}
                    />
                    <TouchableOpacity
                        style={styles.buttonLighGray}
                        onPress={() => this.onPress()}>
                        <Text style={styles.buttonDarkText}>
                            Accept & Sign Up
                        </Text>
                    </TouchableOpacity>
                </KeyboardAvoidingView>
            </SafeAreaView>
        );
    }
}

const mapState = (state) => ({
    user: state.user,
})

const mapDispatch = (dispatch) => ({
    setEmail: mail => dispatch.user.email(mail),
    setPassword: pass => dispatch.user.password(pass),
    setUserName: usern => dispatch.user.username(usern),
    setFullName: fulln => dispatch.user.fullname(fulln),
    SignUp: () => dispatch.user.signup(),
})

export default connect(mapState, mapDispatch)(Signup)

Screen.js

import * as React from 'react';
import {
    View,
    TextInput,
    Alert,
    Text,
    KeyboardAvoidingView,
    SafeAreaView,
    TouchableOpacity,
}
    from 'react-native';
import styles from '../styles'
import { connect } from 'react-redux';
import { Image } from 'react-native-elements';
import '@expo/vector-icons';
import 'redux';
import firebase from 'firebase' 

class Screen extends React.Component {
    render() {
        return (
            <SafeAreaView style={styles.container}>
                    <Text> Full Name: {this.props.user.fullName}</Text>
                    <Text> Email: {this.props.user.email}</Text>
                    <Text> username: {this.props.user.username}</Text>
                    <Text> bio: {this.props.user.bio}</Text>
                    <Text> gender: {this.props.user.gender}</Text>
                    <Text> phoneNum: {this.props.user.phoneNum}</Text>
                    <Text> profilePic: {this.props.user.profilePic}</Text>
            </SafeAreaView>
        );
    }
}

const mapState = (state) => ({
    user: state.user,
})

const mapDispatch = (dispatch) => ({
    setEmail: mail => dispatch.user.email(mail),
    setPassword: pass => dispatch.user.password(pass),
    setUserName: usern => dispatch.user.username(usern),
    setFullName: fulln => dispatch.user.fullname(fulln),
})

export default connect(mapState, mapDispatch)(Screen)
4

1 回答 1

1

问题是您在登录减速器中再次返回当前状态。（您声明的是用户数据）

login(state, payload) {
  return {
   ...state,
   ...payload
  }
  // this will take the global state and overwrite everything that is in payload (merge both objects
},

否则你可以这样做，return payload但这可能会在未来覆盖其他存储的值！

于 2019-09-26T09:41:44.167 回答