徽标
一个用于显示状态指示和数量的 Jetpack Compose 徽标组件。
Android
Included in Expo Go
For the complete documentation index, see llms.txt. Use this file to discover all available pages.
Expo UI Badge 与官方 Jetpack Compose Badge API 相匹配。它会渲染为一个小的彩色指示点,或者带有诸如计数数字之类的内容。

安装
Terminal
- npx expo install @expo/uiIf you are installing this in an existing React Native app, make sure to install expo in your project.
用法
指示点
没有子元素的徽章会渲染为一个小圆点指示器。
BadgeDot.tsx
import { Host, Badge } from '@expo/ui/jetpack-compose'; export default function BadgeDot() { return ( <Host matchContents> <Badge /> </Host> ); }
带计数的徽章
传入一个 Text 子元素来显示数字或标签。
BadgeCount.tsx
import { Host, Badge, Text } from '@expo/ui/jetpack-compose'; export default function BadgeCount() { return ( <Host matchContents> <Badge containerColor="#EF5350" contentColor="#FFFFFF"> <Text>3</Text> </Badge> </Host> ); }
API
import { Badge } from '@expo/ui/jetpack-compose';
Component
Type: React.Element<BadgeProps>
A badge component matching Compose's Badge.
Renders as a small colored indicator dot, or with content (for example, a count).
Optional • Type:
React.ReactNodeOptional content inside the badge (for example, a Text with a count).
When omitted, renders as a small indicator dot.
Optional • Type:
ColorValue • Default: BadgeDefaults.containerColorBackground color of the badge.
Optional • Type:
ColorValue • Default: BadgeDefaults.contentColorContent color inside the badge (text/icon tint).