有没有人能告诉我如何回到上一页，而不是具体的路线?
当使用此代码时:
var BackButton = React.createClass({
mixins: [Router.Navigation],
render: function() {
return (
<button
className="button icon-left"
onClick={this.navigateBack}>
Back
</button>
);
},
navigateBack: function(){
this.goBack();
}
});
得到这个错误，goBack()被忽略，因为没有路由器历史
以下是我的路线:
// Routing Components
Route = Router.Route;
RouteHandler = Router.RouteHandler;
DefaultRoute = Router.DefaultRoute;
var routes = (
<Route name="app" path="/" handler={OurSchoolsApp}>
<DefaultRoute name="home" handler={HomePage} />
<Route name="add-school" handler={AddSchoolPage} />
<Route name="calendar" handler={CalendarPage} />
<Route name="calendar-detail" path="calendar-detail/:id" handler={CalendarDetailPage} />
<Route name="info-detail" path="info-detail/:id" handler={InfoDetailPage} />
<Route name="info" handler={InfoPage} />
<Route name="news" handler={NewsListPage} />
<Route name="news-detail" path="news-detail/:id" handler={NewsDetailPage} />
<Route name="contacts" handler={ContactPage} />
<Route name="contact-detail" handler={ContactDetailPage} />
<Route name="settings" handler={SettingsPage} />
</Route>
);
Router.run(routes, function(Handler){
var mountNode = document.getElementById('app');
React.render(<Handler /> , mountNode);
});
根据https://reacttraining.com/react-router/web/api/history
对于“react-router-dom”:“^5.1.2”，，
const { history } = this.props;
<Button onClick={history.goBack}>
Back
</Button>
YourComponent.propTypes = {
history: PropTypes.shape({
goBack: PropTypes.func.isRequired,
}).isRequired,
};
我认为你只需要在路由器上启用BrowserHistory，初始化如下:< router history={new BrowserHistory}>。
在此之前，你应该从'react-router/lib/BrowserHistory'中获取BrowserHistory
下面是一个使用ES6的例子
const BrowserHistory = require('react-router/lib/BrowserHistory').default;
const App = React.createClass({
render: () => {
return (
<div><button onClick={BrowserHistory.goBack}>Go Back</button></div>
);
}
});
React.render((
<Router history={BrowserHistory}>
<Route path="/" component={App} />
</Router>
), document.body);
对我有用的是在我的文件顶部导入使用throuter;
import { withRouter } from 'react-router-dom'
然后用它来包装导出的函数在我的文件底部;
export default withRouter(WebSitePageTitleComponent)
然后允许我访问路由器的历史道具。完整的示例代码如下!
import React, { Component } from 'react'
import { withRouter } from 'react-router-dom'
import PropTypes from 'prop-types'
class TestComponent extends Component {
constructor(props) {
super(props)
this.handleClick = this.handleClick.bind(this)
}
handleClick() {
event.preventDefault()
this.props.history.goBack()
}
render() {
return (
<div className="page-title">
<a className="container" href="/location" onClick={this.handleClick}>
<h1 className="page-header">
{ this.props.title }
</h1>
</a>
</div>
)
}
}
const { string, object } = PropTypes
TestComponent.propTypes = {
title: string.isRequired,
history: object
}
export default withRouter(TestComponent)
更新React v16和ReactRouter v4.2.0(2017年10月):
class BackButton extends Component {
static contextTypes = {
router: () => true, // replace with PropTypes.object if you use them
}
render() {
return (
<button
className="button icon-left"
onClick={this.context.router.history.goBack}>
Back
</button>
)
}
}
更新React v15和ReactRouter v3.0.0(2016年8月):
var browserHistory = ReactRouter.browserHistory;
var BackButton = React.createClass({
render: function() {
return (
<button
className="button icon-left"
onClick={browserHistory.goBack}>
Back
</button>
);
}
});
创建了一个稍微复杂一点的嵌入iframe的例子:https://jsfiddle.net/kwg1da3a/
React v14和ReacRouter v1.0.0(2015年9月10日)
你可以这样做:
var React = require("react");
var Router = require("react-router");
var SomePage = React.createClass({
...
contextTypes: {
router: React.PropTypes.func
},
...
handleClose: function () {
if (Router.History.length > 1) {
// this will take you back if there is history
Router.History.back();
} else {
// this will take you to the parent route if there is no history,
// but unfortunately also add it as a new route
var currentRoutes = this.context.router.getCurrentRoutes();
var routeName = currentRoutes[currentRoutes.length - 2].name;
this.context.router.transitionTo(routeName);
}
},
...
你需要小心，你有必要的历史回溯。如果你直接点击页面，然后再点击返回，它会带你回到应用之前的浏览器历史。
这个解决方案可以兼顾这两种情况。但是，它不会处理可以在页面中导航(并添加到浏览器历史记录中)的iframe(使用后退按钮)。坦白地说，我认为这是反应路由器的一个bug。问题创建在这里:https://github.com/rackt/react-router/issues/1874
