我正试图按照@FilipeBorges的建议,将持久性添加到我已经在React Native应用程序中使用的Redux状态管理中
here
(redux+react redux+redux persist)。我想要的只是,用户创建的列表项(以及我存储在Redux中的列表项)应该在应用程序重新启动后可用。
根据
redux-persist github README
但是
当我尝试启动我的应用程序时,它要么立即崩溃(几秒钟后只是一个空白的白屏),要么给我一条神秘的错误消息/堆栈跟踪
告诉我“不能在没有度量函数的情况下将没有YogaNode的子级添加到父级”,堆栈跟踪只包含库/核心React本机代码(我真的不知道该去哪里查找)。
只是为了澄清一下,在添加redux persist之前,redux和react redux工作得非常好。
这是我的
store.js
看起来像:
import { createStore, applyMiddleware } from "redux";
import { persistStore, persistReducer } from "redux-persist";
import storage from "redux-persist/lib/storage";
import logger from "redux-logger";
import reducers from "./reducers";
// configure middleware
let middleware = [];
if (process.env.NODE_ENV === "development") {
middleware.push(logger);
}
// configure persistance
const persistConfig = {
key: "root",
storage: storage,
};
const persistedReducers = persistReducer(persistConfig, reducers);
export default function configureStore() {
// finalize store setup
let store = createStore(persistedReducers, applyMiddleware(...middleware));
let persistor = persistStore(store);
return { store, persistor };
}
还有我的
App.js
:
import React, { Component } from 'react';
import Expo from "expo";
import Navigator from "./app/config/routes";
// store and state management
import { Provider } from "react-redux";
import configureStore from "./app/redux/store";
let { store, persistor } = configureStore();
import { PersistGate } from "redux-persist/lib/integration/react";
export default class App extends Component {
constructor() {
super();
Expo.ScreenOrientation.allow(Expo.ScreenOrientation.Orientation.PORTRAIT_UP);
}
render() {
return (
<Provider store={store}>
<PersistGate loading="loading..." persistor={persistor}>
<Navigator />
</PersistGate>
</Provider>
);
}
}
关于我的环境的注释;我的应用程序是一个独立的世博会应用程序,具有:
"dependencies": {
"expo": "^24.0.0",
"react": "16.0.0",
"react-native": "https://github.com/expo/react-native/archive/sdk-24.0.0.tar.gz",
"react-navigation": "^1.0.0-beta.21",
"react-redux": "^5.0.6",
"redux": "^3.7.2",
"redux-logger": "^3.0.6",
"redux-persist": "^5.4.0",
...etc, some more unrelated packages
}
在MacOS High Sierra开发的Android 7上运行。
提前感谢您的帮助!