This is documentation for the next SDK version. For up-to-date documentation, see the latest version (SDK 55).

分段按钮

用于单选或多选的 Jetpack Compose 分段按钮组件。

Android

GitHub

npm

更新日志

分段按钮让应用用户可以从一行并排显示的一组小选项中进行选择。它们对应官方的 Jetpack Compose 分段按钮 API。

有两种容器类型：

SingleChoiceSegmentedButtonRow：同一时间只能选择一个按钮（类似单选按钮）。
MultiChoiceSegmentedButtonRow：多个按钮可以独立切换（类似复选框）。

安装

Terminal

- npx expo install @expo/ui

If you are installing this in an existing React Native app, make sure to install expo in your project.

用法

单选分段按钮

当同一时间只能激活一个选项时，使用 SingleChoiceSegmentedButtonRow。每个 SegmentedButton 接受 selected 和 onClick 属性。

SingleChoiceExample.tsx

import { useState } from 'react';
import {
  Host,
  SingleChoiceSegmentedButtonRow,
  SegmentedButton,
  Text,
} from '@expo/ui/jetpack-compose';

export default function SingleChoiceExample() {
  const [selectedIndex, setSelectedIndex] = useState(0);
  const options = ['Day', 'Week', 'Month', 'Year'];

  return (
    <Host matchContents>
      <SingleChoiceSegmentedButtonRow>
        {options.map((label, index) => (
          <SegmentedButton
            key={label}
            selected={index === selectedIndex}
            onClick={() => setSelectedIndex(index)}>
            <SegmentedButton.Label>
              <Text>{label}</Text>
            </SegmentedButton.Label>
          </SegmentedButton>
        ))}
      </SingleChoiceSegmentedButtonRow>
    </Host>
  );
}

多选分段按钮

当多个选项可以独立切换时，使用 MultiChoiceSegmentedButtonRow。每个 SegmentedButton 接受 checked 和 onCheckedChange 属性。

MultiChoiceExample.tsx

import { useState } from 'react';
import {
  Host,
  MultiChoiceSegmentedButtonRow,
  SegmentedButton,
  Text,
} from '@expo/ui/jetpack-compose';

export default function MultiChoiceExample() {
  const [checkedItems, setCheckedItems] = useState([false, false, false, false]);
  const options = ['Wi-Fi', 'Bluetooth', 'NFC', 'GPS'];

  return (
    <Host matchContents>
      <MultiChoiceSegmentedButtonRow>
        {options.map((label, index) => (
          <SegmentedButton
            key={label}
            checked={checkedItems[index]}
            onCheckedChange={checked => {
              setCheckedItems(prev => {
                const next = [...prev];
                next[index] = checked;
                return next;
              });
            }}>
            <SegmentedButton.Label>
              <Text>{label}</Text>
            </SegmentedButton.Label>
          </SegmentedButton>
        ))}
      </MultiChoiceSegmentedButtonRow>
    </Host>
  );
}

自定义颜色

在 SegmentedButton 上使用 colors 属性，可以自定义其在激活、未激活和禁用状态下的外观。

CustomColorsExample.tsx

import { useState } from 'react';
import {
  Host,
  SingleChoiceSegmentedButtonRow,
  SegmentedButton,
  Text,
} from '@expo/ui/jetpack-compose';

export default function CustomColorsExample() {
  const [selectedIndex, setSelectedIndex] = useState(0);
  const options = ['$', '$$', '$$$', '$$$$'];

  return (
    <Host matchContents>
      <SingleChoiceSegmentedButtonRow>
        {options.map((label, index) => (
          <SegmentedButton
            key={label}
            selected={index === selectedIndex}
            onClick={() => setSelectedIndex(index)}
            colors={{
              activeContainerColor: '#6200EE',
              activeContentColor: '#FFFFFF',
            }}>
            <SegmentedButton.Label>
              <Text>{label}</Text>
            </SegmentedButton.Label>
          </SegmentedButton>
        ))}
      </SingleChoiceSegmentedButtonRow>
    </Host>
  );
}

API

import {
  SingleChoiceSegmentedButtonRow,
  MultiChoiceSegmentedButtonRow,
  SegmentedButton,
} from '@expo/ui/jetpack-compose';

Components

`MultiChoiceSegmentedButtonRow`

Android

Type: React.Element<MultiChoiceSegmentedButtonRowProps>

A row container for multi-choice SegmentedButton children. Maps to Material 3 MultiChoiceSegmentedButtonRow.

MultiChoiceSegmentedButtonRowProps

`children`

Android

Type: React.ReactNode

SegmentedButton children.

`modifiers`

Android

Optional • Type: ModifierConfig[]

Modifiers for the component.

`SegmentedButton`

Android

Type: React.Element<SegmentedButtonProps>

A Material 3 segmented button. Must be used inside a SingleChoiceSegmentedButtonRow or MultiChoiceSegmentedButtonRow.

SegmentedButtonProps

`checked`

Android

Optional • Type: boolean

Whether the button is currently checked (used inside MultiChoiceSegmentedButtonRow).

`children`

Android

Optional • Type: React.ReactNode

Children containing a Label slot.

`colors`

Android

Optional • Type: SegmentedButtonColors

Colors for the button in different states.

`enabled`

Android

Optional • Type: boolean • Default: true

Whether the button is enabled.

`modifiers`

Android

Optional • Type: ModifierConfig[]

Modifiers for the component.

`onCheckedChange`

Android

Optional • Type: (checked: boolean) => void

Callback that is called when the checked state changes (used inside MultiChoiceSegmentedButtonRow).

`onClick`

Android

Optional • Type: () => void

Callback that is called when the button is clicked (used inside SingleChoiceSegmentedButtonRow).

`selected`

Android

Optional • Type: boolean

Whether the button is currently selected (used inside SingleChoiceSegmentedButtonRow).

`SingleChoiceSegmentedButtonRow`

Android

Type: React.Element<SingleChoiceSegmentedButtonRowProps>

A row container for single-choice SegmentedButton children. Maps to Material 3 SingleChoiceSegmentedButtonRow.

SingleChoiceSegmentedButtonRowProps

`children`

Android

Type: React.ReactNode

SegmentedButton children.

`modifiers`

Android

Optional • Type: ModifierConfig[]

Modifiers for the component.

Types

`SegmentedButtonColors`

Android

Colors for the segmented button in different states.

Property	Type	Description
activeBorderColor(optional)	`ColorValue`	-
activeContainerColor(optional)	`ColorValue`	-
activeContentColor(optional)	`ColorValue`	-
disabledActiveBorderColor(optional)	`ColorValue`	-
disabledActiveContainerColor(optional)	`ColorValue`	-
disabledActiveContentColor(optional)	`ColorValue`	-
disabledInactiveBorderColor(optional)	`ColorValue`	-
disabledInactiveContainerColor(optional)	`ColorValue`	-
disabledInactiveContentColor(optional)	`ColorValue`	-
inactiveBorderColor(optional)	`ColorValue`	-
inactiveContainerColor(optional)	`ColorValue`	-
inactiveContentColor(optional)	`ColorValue`	-