如何在 JS 和 React Router 中使用 CSS 设置活动 link 子项的样式?
How to style the active link childs using CSS in JS and React Router?
我在 JS 中使用 React ROuter 和 CSS 来实现样式。
我想更改活动 links 子 div(navIndicator 和 innerIndicator)
的背景颜色和边框颜色
import { css, StyleSheet } from 'aphrodite/no-important';
export default ({ task, selectedLocal, selectedScenarioId, taskId }: ITaskNavItem) => {
const isActiveNav = (match: any, location: object) => match;
const theme = getTheme();
const styles = StyleSheet.create({
navLink: {
display: 'flex',
fontSize: '12px',
textDecoration: 'none',
color: theme.palette.neutralPrimary
},
navLinkActive: {
color: theme.palette.neutralPrimary,
fontWeight: 'bold',
'.navIndicator': {
borderColor: theme.palette.themePrimary
},
'.innerIndicator': {
backgroundColor: theme.palette.themePrimary
}
},
navTitle: {
width: '100px',
textAlign: 'center',
wordBreak: 'break-word',
wordSpacing: '100px'
},
linkText: {
display: 'flex',
flexFlow: 'column',
'align-items': 'center'
},
navIndicator: {
borderRadius: '50%',
margin: '10px 0 0 0',
backgroundColor: theme.palette.white,
width: '30px',
height: '30px',
border: '2px solid',
borderColor: theme.palette.neutralPrimary,
position: 'relative'
},
innerIndicator: {
position: 'absolute',
borderRadius: '50%',
width: '20px',
height: '20px',
backgroundColor: theme.palette.neutralPrimary,
top: '50%',
left: '50%',
transform: 'translate(-50%, -50%)'
}
});
return (
<div className={css(styles.navLink)}>
<NavLink
exact
isActive={isActiveNav}
className={css(styles.navLink)}
activeClassName={css(styles.navLinkActive)}
to={`/selectedLocal/${selectedLocal}/scenarios/${selectedScenarioId}/tasks/${taskId}`}
>
<div className={css(styles.linkText)}>
<div className={css(styles.navTitle)}> {task.title}</div>
<div className={css(styles.navIndicator)}>
<div className={css(styles.innerIndicator)} />
</div>
</div>
</NavLink>
</div>
);
};
但是,当导航 link 处于活动状态时,navIndicator 和 innerIndicator 颜色不会改变。
想知道如何使样式适用于活动 link?
NavLink
元素不指示其子元素是否处于活动状态。所以我可能建议从 BrowserRouter
组件获取当前路由(您的组件应该是 BrowserRouter
的子组件,所以 NavLink
可以工作),比较路径并设置本地 isActive
变量以指示是否特定路线已激活。
例如(未测试,只是示例):
const StyledLinks: React.FunctionComponent<RouteComponentProps & ITaskNavItem> = ({ task, selectedLocal, selectedScenarioId, taskId, location }) => {
const to = '/selectedLocal/${selectedLocal}/scenarios/${selectedScenarioId}/tasks/${taskId}';
const isActive = to === location.pathname;
const styles = StyleSheet.create({
// ...
navIndicatorActive: {
borderColor: theme.palette.themePrimary
},
// ...
return (
<div className={css(styles.navLink)}>
<NavLink
exact
className={css(styles.navLink)}
activeClassName={css(styles.navLinkActive)}
to={to}
>
<div className={css(styles.linkText)}>
<div className={css(styles.navTitle)}> {task.title}</div>
<div className={isActive ? css([styles.navIndicator, styles.navIndicatorActive]) : css(styles.navIndicator)}>
<div className={css(styles.innerIndicator)} />
</div>
</div>
</NavLink>
</div>
);
}
// Wrap your component withRouter to get location prop
export default withRouter(StyledLinks);
我在 JS 中使用 React ROuter 和 CSS 来实现样式。 我想更改活动 links 子 div(navIndicator 和 innerIndicator)
的背景颜色和边框颜色import { css, StyleSheet } from 'aphrodite/no-important';
export default ({ task, selectedLocal, selectedScenarioId, taskId }: ITaskNavItem) => {
const isActiveNav = (match: any, location: object) => match;
const theme = getTheme();
const styles = StyleSheet.create({
navLink: {
display: 'flex',
fontSize: '12px',
textDecoration: 'none',
color: theme.palette.neutralPrimary
},
navLinkActive: {
color: theme.palette.neutralPrimary,
fontWeight: 'bold',
'.navIndicator': {
borderColor: theme.palette.themePrimary
},
'.innerIndicator': {
backgroundColor: theme.palette.themePrimary
}
},
navTitle: {
width: '100px',
textAlign: 'center',
wordBreak: 'break-word',
wordSpacing: '100px'
},
linkText: {
display: 'flex',
flexFlow: 'column',
'align-items': 'center'
},
navIndicator: {
borderRadius: '50%',
margin: '10px 0 0 0',
backgroundColor: theme.palette.white,
width: '30px',
height: '30px',
border: '2px solid',
borderColor: theme.palette.neutralPrimary,
position: 'relative'
},
innerIndicator: {
position: 'absolute',
borderRadius: '50%',
width: '20px',
height: '20px',
backgroundColor: theme.palette.neutralPrimary,
top: '50%',
left: '50%',
transform: 'translate(-50%, -50%)'
}
});
return (
<div className={css(styles.navLink)}>
<NavLink
exact
isActive={isActiveNav}
className={css(styles.navLink)}
activeClassName={css(styles.navLinkActive)}
to={`/selectedLocal/${selectedLocal}/scenarios/${selectedScenarioId}/tasks/${taskId}`}
>
<div className={css(styles.linkText)}>
<div className={css(styles.navTitle)}> {task.title}</div>
<div className={css(styles.navIndicator)}>
<div className={css(styles.innerIndicator)} />
</div>
</div>
</NavLink>
</div>
);
};
但是,当导航 link 处于活动状态时,navIndicator 和 innerIndicator 颜色不会改变。 想知道如何使样式适用于活动 link?
NavLink
元素不指示其子元素是否处于活动状态。所以我可能建议从 BrowserRouter
组件获取当前路由(您的组件应该是 BrowserRouter
的子组件,所以 NavLink
可以工作),比较路径并设置本地 isActive
变量以指示是否特定路线已激活。
例如(未测试,只是示例):
const StyledLinks: React.FunctionComponent<RouteComponentProps & ITaskNavItem> = ({ task, selectedLocal, selectedScenarioId, taskId, location }) => {
const to = '/selectedLocal/${selectedLocal}/scenarios/${selectedScenarioId}/tasks/${taskId}';
const isActive = to === location.pathname;
const styles = StyleSheet.create({
// ...
navIndicatorActive: {
borderColor: theme.palette.themePrimary
},
// ...
return (
<div className={css(styles.navLink)}>
<NavLink
exact
className={css(styles.navLink)}
activeClassName={css(styles.navLinkActive)}
to={to}
>
<div className={css(styles.linkText)}>
<div className={css(styles.navTitle)}> {task.title}</div>
<div className={isActive ? css([styles.navIndicator, styles.navIndicatorActive]) : css(styles.navIndicator)}>
<div className={css(styles.innerIndicator)} />
</div>
</div>
</NavLink>
</div>
);
}
// Wrap your component withRouter to get location prop
export default withRouter(StyledLinks);