我有一个问题,当导航到另一个页面,它的位置将保持像之前的页面。所以它不会自动滚动到顶部。 我也试过使用window。onChange路由器上的scrollTo(0,0)。我还使用了scrollBehavior来修复这个问题,但它没有工作。对此有什么建议吗?
当前回答
利用钩子,你可以简单地在代码库的useEffect中插入window.scrollTo(0,0)。简单地在你的应用程序中实现代码片段,它应该在它的窗口顶部加载每个页面。
import { useEffect } from 'react';
useEffect(() => {
window.scrollTo(0, 0);
}, []);
其他回答
对于react-router-dom V5,滚动到顶部
import React, { useEffect } from 'react';
import {
BrowserRouter as Router,
Switch,
Route,
Link,
useLocation,
withRouter
} from 'react-router-dom'
function _ScrollToTop(props) {
const { pathname } = useLocation();
useEffect(() => {
window.scrollTo(0, 0);
}, [pathname]);
return props.children
}
const ScrollToTop = withRouter(_ScrollToTop)
function App() {
return (
<div>
<Router>
<ScrollToTop>
<Header />
<Content />
<Footer />
</ScrollToTop>
</Router>
</div>
)
}
使用useEffect() -功能组件的解决方案
useEffect(() => {
window.history.scrollRestoration = 'manual';}, []);
利用钩子,你可以简单地在代码库的useEffect中插入window.scrollTo(0,0)。简单地在你的应用程序中实现代码片段,它应该在它的窗口顶部加载每个页面。
import { useEffect } from 'react';
useEffect(() => {
window.scrollTo(0, 0);
}, []);
但是课程太2018年了
ScrollToTop实现与React挂钩
ScrollToTop.js
import { useEffect } from 'react';
import { withRouter } from 'react-router-dom';
function ScrollToTop({ history }) {
useEffect(() => {
const unlisten = history.listen(() => {
window.scrollTo(0, 0);
});
return () => {
unlisten();
}
}, []);
return (null);
}
export default withRouter(ScrollToTop);
用法:
<Router>
<Fragment>
<ScrollToTop />
<Switch>
<Route path="/" exact component={Home} />
</Switch>
</Fragment>
</Router>
ScrollToTop也可以实现为一个包装器组件:
ScrollToTop.js
import React, { useEffect, Fragment } from 'react';
import { withRouter } from 'react-router-dom';
function ScrollToTop({ history, children }) {
useEffect(() => {
const unlisten = history.listen(() => {
window.scrollTo(0, 0);
});
return () => {
unlisten();
}
}, []);
return <Fragment>{children}</Fragment>;
}
export default withRouter(ScrollToTop);
用法:
<Router>
<ScrollToTop>
<Switch>
<Route path="/" exact component={Home} />
</Switch>
</ScrollToTop>
</Router>
我写了一个叫withScrollToTop的高阶组件。这个HOC有两个标志:
onComponentWillMount -导航时是否滚动到顶部(componentWillMount) onComponentDidUpdate—是否在更新时滚动到顶部(componentDidUpdate)。该标志在组件没有卸载但发生导航事件的情况下是必要的,例如,从/users/1到/users/2。
// @flow
import type { Location } from 'react-router-dom';
import type { ComponentType } from 'react';
import React, { Component } from 'react';
import { withRouter } from 'react-router-dom';
type Props = {
location: Location,
};
type Options = {
onComponentWillMount?: boolean,
onComponentDidUpdate?: boolean,
};
const defaultOptions: Options = {
onComponentWillMount: true,
onComponentDidUpdate: true,
};
function scrollToTop() {
window.scrollTo(0, 0);
}
const withScrollToTop = (WrappedComponent: ComponentType, options: Options = defaultOptions) => {
return class withScrollToTopComponent extends Component<Props> {
props: Props;
componentWillMount() {
if (options.onComponentWillMount) {
scrollToTop();
}
}
componentDidUpdate(prevProps: Props) {
if (options.onComponentDidUpdate &&
this.props.location.pathname !== prevProps.location.pathname) {
scrollToTop();
}
}
render() {
return <WrappedComponent {...this.props} />;
}
};
};
export default (WrappedComponent: ComponentType, options?: Options) => {
return withRouter(withScrollToTop(WrappedComponent, options));
};
使用它:
import withScrollToTop from './withScrollToTop';
function MyComponent() { ... }
export default withScrollToTop(MyComponent);