React Native Formik 与 react redux 一起使用

Question

我怀疑我的onSubmit函数有问题。上述错误是我在运行应用程序时遇到的。我试图更改我的onSubmit函数以将“title”作为有效负载，但这也不起作用协助将不胜感激。addAuctionForm:import React, {Component} from 'react'import { TextInput, Button } from 'react-native-paper'import { View } from 'react-native'import { connect} from 'react-redux'import { Formik } from 'formik'import { addAuction} from '../../actions/index'function mapDispatchToProps(dispatch) {    return {        addAuction: auction => dispatch(addAuction(auction))    }}class ConnectedForm extends Component {    constructor(props) {        super(props)        this.state = {            title: ''        }            }        render() {        return (            <Formik                onSubmit={() => addAuction(auction)}            >                {({ handleChange, handleSubmit, values}) => (                    <View>                        <TextInput                        onChangeText={handleChange('title')}                        value={auction.title}                        />                        <Button onPress={handleSubmit} title="SUBMIT"/>                    </View>                     )}            </Formik>        );    }}const Form = connect(null, mapDispatchToProps)(ConnectedForm)export default Form行动：import { ADD_AUCTION } from '../constants/action-types'export function addAuction(payload) {    return { type: 'ADD_AUCTION', payload}}减速器：import {ADD_AUCTION} from '../constants/action-types';const initialState = {    auctions: []}function rootReducer(state = initialState, action) {    if (action.type === ADD_AUCTION) {        return Object.assign({}, state, {            auctions: state.auctions.concat(action.payload)        })    }    return state}export default rootReducer;

Answer 1

您正在使用的库 ( react-native-paper) 并且Formik不直接兼容。您将无法handle*直接使用道具。

您最好的选择是直接使用setFieldValue和submitForm：

            <Formik

                onSubmit={() => addAuction(auction)}

            >

                {({ setFieldValue, submitForm, values}) => (

                    <View>

                        <TextInput

                        onChangeText={v => setFieldValue('title', v)}

                        value={auction.title}

                        />

                        <Button onPress={() => submitForm()} title="SUBMIT"/>

                    </View>     

                )}

            </Formik>