reactjs - 重新渲染应用程序导致创建两个 redux 存储实例

Question

我有一个模式的 react-redux 应用程序。我需要从外面切换它。我最初的应用是这样的：

import React, { PureComponent } from 'react';
import PropTypes from 'prop-types';
import { applyMiddleware, compose, createStore } from 'redux';
import { Provider } from 'react-redux';
import thunk from 'redux-thunk';

import App from './lib/containers/App';

import reducer from './lib/ducks/reducers';

import MY_PROPTYPES from './lib/proptypes';

/* eslint-disable no-underscore-dangle */
const composeEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__
  || compose;
/* eslint-enable */
const middleware = [];
middleware.push(thunk);

if (process.env.NODE_ENV !== 'production') {
  // eslint-disable-next-line global-require
  const { createLogger } = require('redux-logger');
  middleware.push(createLogger());
}

export default class Gallery extends PureComponent {
 render() {


    const initState = {
     ...
    };

   const store = createStore(
        reducer,
        initState,
        composeEnhancers(applyMiddleware(...middleware))

    return (
      <Provider store={store}>
        <App
          onClose={e => onClose(e)}
          isVisible={isVisible}
          initialPosition={initialPosition}
        />
      </Provider>
    );
  }
}

当我关闭模式并打开它时，这给我带来了问题。尽管商店发生了变化，但它会停止重新渲染。所以相应地存储更改，但我的应用程序没有对这些更改做出反应。我发现这是因为我创建了不同的商店实例并将其再次传递给我的应用程序，但它仍然连接到以前的商店。

所以，我改变了我的入口点：我在 state 中添加了带有 store 的构造函数，并将创建 store 更改为以下代码：

 let newStore = store;
    if (!newStore) {
      newStore = createStore(
        reducer,
        initState,
        composeEnhancers(applyMiddleware(...middleware))
      );
      this.setState({ store: newStore });
    }

我将这个 newStore 传递给我的 Provider。这解决了我的问题，App 正在根据商店发生变化，但现在我有这个 JS 错误：

警告：在现有状态转换期间无法更新（例如在 内render）。渲染方法应该是 props 和 state 的纯函数。

我的 package.json：

{
  "name": "@fishingbooker/gallery",
  "version": "1.0.0",
  "description": "",
  "main": "./dist",
  "directories": {
    "doc": "docs"
  },
  "scripts": {
    "lib": "babel src -d dist",
    "lib:watch": "babel src -w -d dist",
    "docs": "webpack-dev-server --open",
    "start": "webpack-dev-server --open --mode development --host 0.0.0.0 --disable-host-check --https",
    "docs:prof": "webpack -p"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "@babel/cli": "^7.1.2",
    "@babel/core": "^7.1.2",
    "@babel/helper-plugin-utils": "^7.0.0",
    "@babel/plugin-proposal-class-properties": "^7.2.3",
    "@babel/preset-env": "^7.0.0",
    "@babel/preset-react": "^7.0.0",
    "@babel/register": "^7.0.0",
    "babel-core": "^7.0.0-bridge.0",
    "babel-loader": "^8.0.4",
    "html-webpack-plugin": "^3.2.0",
    "webpack": "^4.20.2",
    "webpack-cli": "^3.1.2",
    "webpack-dev-server": "^3.1.9"
  },
  "dependencies": {
    "@fishingbooker/react-slick": "0.0.5",
    "axios": "^0.18.0",
    "classnames": "^2.2.6",
    "lodash": "^4.17.11",
    "mousetrap": "^1.6.2",
    "prop-types": "^15.6.2",
    "react": "^16.5.2",
    "react-dom": "^16.5.2",
    "react-redux": "^6.0.0",
    "react-swipe": "^6.0.3",
    "redux": "^4.0.1",
    "redux-logger": "^3.0.6",
    "redux-thunk": "^2.3.0"
  }
}

有谁知道我该如何解决这个错误，或者如何重新呈现我的入口点，以便我的应用程序保持与商店的连接。

提前致谢。

标签： reactjsredux