URL更改，但未呈现新页面Ionic React，带有历史的IonReactRouter [英] URL changes but page new page is not rendered Ionic React , IonReactRouter with history

问题描述

我正在使用带有React和Redux的Ionic 5编写应用程序.成功尝试登录后，我正在尝试导航到新页面/tabs/home.当我从后端获得成功的响应时，我试图通过将新的URL推送到react路由器历史记录prop来实现此目的.这样做是因为它将url从/login更改为/tabs/home，但仍显示登录页面.

I am writing an app using Ionic 5 with React and Redux. I am attempting to navigate to a new page, /tabs/home, upon a successful login attempt. I am trying to do this by pushing the new URL onto the react router history prop when I get a successful response from the backend. This is working in that it changes the url from /login to /tabs/home but the login page is still displayed.

index.tsx

index.tsx

import React from 'react';
import {render} from 'react-dom';
import App from './App';
import { Provider } from 'react-redux';
import { store } from './helpers/store';
import { Router } from 'react-router';
import CreateBrowserHistory from 'history/createBrowserHistory';

export const history = CreateBrowserHistory();

render(
    <Provider store={store}>
        <Router history={history}>
             <App />           
        </Router>
    </Provider>,
    document.getElementById('root')
);

App.tsx

import React, { useEffect } from 'react';
import { useDispatch, useSelector } from 'react-redux';
import { history } from './index';
import { alertActions } from './actions/alert.actions';
import { Route } from 'react-router-dom';
import {
  IonApp,
} from '@ionic/react';
import { IonReactRouter } from '@ionic/react-router';
import { LoginPage } from './pages/Login';

import MainTabs from './pages/MainTabs';

function App() {
  const alert = useSelector(state => state.alert);
  const dispatch = useDispatch();

  useEffect(() => {
    history.listen((location, action) => {
      console.log(location);
      console.log(action);
      dispatch(alertActions.clear());
    });
  }, []);

  return (
    <IonApp>
        {/*
         // @ts-ignore*/}
        <IonReactRouter history={history}>
          <Route path="/tabs" component={MainTabs} />
          <Route path="/login" component={LoginPage} />
        </IonReactRouter>
    </IonApp>
  )
}

export default App;

Login.tsx

Login.tsx

function LoginPage() {
  const [inputs, setInputs] = useState({
    username: '',
    password: ''
  });
  const [submitted, setSubmitted] = useState(false);
  const { username, password } = inputs;
  const loggingIn = useSelector(state => state.authentication.loggingIn);
  const dispatch = useDispatch();

  useEffect(() => {
    dispatch(userActions.logout());
  }, []);

  function handleChange(e) {
    const { name, value } = e.target;
    setInputs(inputs => ({ ...inputs, [name]: value }));
  }

  function handleSubmit(e) {
     e.preventDefault();

     setSubmitted(true);
     if (username && password) {
       dispatch(userActions.login(username, password));
     }
  }

  return (
    <IonPage id="login-page">
      <IonHeader>
        <IonToolbar>
          <IonButtons slot="start">
            <IonMenuButton></IonMenuButton>
          </IonButtons>
          <IonTitle>Login</IonTitle>
        </IonToolbar>
      </IonHeader>
      <IonContent>

        <form noValidate onSubmit={handleSubmit}>
          <IonList>
            <IonItem>
              <IonLabel position="stacked" color="primary">Username</IonLabel>
              <IonInput name="username" type="text" value={username} spellCheck={false} autocapitalize="off" onIonChange={handleChange} className={'form-control' + (submitted && !username ? ' is-invalid' : '')} required>
              </IonInput>
            </IonItem>

            <IonItem>
              <IonLabel position="stacked" color="primary">Password</IonLabel>
              <IonInput name="password" type="password" value={password} onIonChange={handleChange} className={'form-control' + (submitted && !password ? ' is-invalid' : '')} required>
              </IonInput>
            </IonItem>

          </IonList>

          <IonRow>
            <IonCol>
              {loggingIn && <span className="spinner-border spinner-border-sm mr-1"></span>}
              <IonButton type="submit" expand="block">Login</IonButton>
            </IonCol>
            <IonCol>
              <IonButton routerLink="/signup" color="light" expand="block">Signup</IonButton>
            </IonCol>
          </IonRow>
        </form>

      </IonContent>

    </IonPage>
  )
}

export { LoginPage };

登录操作

function login(username, password) {
    return dispatch => {
        dispatch(request({ username }));

        userService.login(username, password)
        .then(
            user => {
                dispatch(success(user));
                history.push('/tabs/home');
            },
            error => {
                dispatch(failure(error.toString()));
                dispatch(alertActions.error(error.toString()));
            }
        );
    };

    function request(user) { return { type: userConstants.LOGIN_REQUEST, user } }
    function success(user) { return { type: userConstants.LOGIN_SUCCESS, user } }
    function failure(error) { return { type: userConstants.LOGIN_FAILURE, error } }
}

推荐答案

问题:

根据文档:

IonReactRouter 组件包装了React Router中的传统 BrowserRouter 组件，并设置了应用进行路由.因此，使用 IonReactRouter 代替 BrowserRouter .您可以将任何道具传递给 IonReactRouter ，它们将被传递到底层的 BrowserRouter .

The IonReactRouter component wraps the traditional BrowserRouter component from React Router, and sets the app up for routing. Therefore, use IonReactRouter in place of BrowserRouter. You can pass in any props to IonReactRouter and they will be passed down to the underlying BrowserRouter.

我认为 BrowserRouter 不支持自定义历史记录，如您所见

I think custom history is not supported by BrowserRouter, as you can see BrowserRouter supports this props, there no history props there

basename
forceRefresh
getUserConfirmation
keyLength
children

历史道具可用于 Router

history props is available for Router

在github上发布

解决方案:

因此，我对使用自定义历史记录进行了以下更改，并且可以正常工作

So I've made below changes for using custom history and it's working

index.js

import React from "react";
import { render } from "react-dom";
import App from "./App";
import { Provider } from "react-redux";
import { store } from "./helpers/store";

render(
  <Provider store={store}>
      <App />
  </Provider>,
  document.getElementById("root")
);

---

App.tsx

---

App.tsx

    <IonApp>
      <Router history={history}>
        {/* <IonReactRouter history={history}> */}
        <Route path="/tabs" component={MainTabs} />
        <Route exact path="/" component={LoginPage} />
        {/* </IonReactRouter> */}
      </Router>
    </IonApp>

---

OR

您可以使用类似这样的技巧，例如 参考

You can use something like this as hack, ref

import React from 'react'
import { History } from 'history'
import { useHistory } from 'react-router'

// Add custom property 'appHistory' to the global window object
declare global {
  interface Window { appHistory: History }
}

const MyApp: React.FC = () => {
  // Store the history object globally so we can access it outside of React components
  window.appHistory = useHistory()

  ...
}

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