首页 文章

Redux-persist立即崩溃

提问于
浏览
0

我正在尝试根据@Filipe Borges here(redux react-redux redux-persist)的建议,为我已经在我的React Native应用程序中工作的Redux状态管理添加持久性 . 我想要的只是用户创建的列表项(我存储在Redux中)应该在重新启动应用程序后可用 .

我根据redux-persist github README添加了似乎所需的代码,但 when I attempt to launch my app it either crashes immediately (after a few seconds of just a blank white screen), or gives me a cryptic error message/stacktrace 告诉我"Cannot Add a child that doesn't have a YogaNode to a parent with out a measure function"堆栈跟踪只包含库/核心React Native代码(meaing我真的不知道在哪里看) .

为了澄清,在添加redux-persist之前,redux和react-redux工作得很好 .

这是我的 store.js 的样子:

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 };
}

和我的 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>
        );
    }
}

关于我的环境的说明;我的应用程序是一个独立的Expo应用程序:

"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
  }

运行在MacOS High Sierra开发的Android 7上 .

提前感谢您的帮助!

1 回答

  • 1

    这是因为 "loading..." 组件没有包装 < View >< Text > ,尝试添加包装或创建加载组件,问题将得到解决 .

    <PersistGate loading={<View><Text>Loading...</Text></View>} persistor={persistor}>
          <Navigator />
    </PersistGate>
    

相关问题