DisclosureGroup

一个用于显示可展开内容的 SwiftUI DisclosureGroup 组件。

iOS

Included in Expo Go

Recommended version:

~57.0.22

Expo UI DisclosureGroup 与官方的 SwiftUI DisclosureGroup API 相匹配，并显示一个可展开或隐藏内容的指示器。

🌐 Expo UI DisclosureGroup matches the official SwiftUI DisclosureGroup API and displays a disclosure indicator that reveals or hides content.

安装

🌐 Installation

Terminal

- npx expo install @expo/ui

- yarn expo install @expo/ui

- pnpm expo install @expo/ui

- bun 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

🌐 Usage

基本披露组

🌐 Basic disclosure group

DisclosureGroup最常在Form内部使用，所以它会采用带有箭头指示器的标准iOS列表样式。

BasicDisclosureGroupExample.tsx

import { useState } from 'react';
import {
  DisclosureGroup,
  Form,
  Host,
  Section,
  Text,
} from '@expo/ui/swift-ui';

export default function BasicDisclosureGroupExample() {
  const [isExpanded, setIsExpanded] = useState(true);
  return (
    <Host style={{ flex: 1 }}>
      <Form>
        <Section>
          <DisclosureGroup
            label="Advanced settings"
            isExpanded={isExpanded}
            onIsExpandedChange={setIsExpanded}>
            <Text>Auto-update apps</Text>
            <Text>App downloads</Text>
            <Text>Offload unused apps</Text>
          </DisclosureGroup>
        </Section>
      </Form>
    </Host>
  );
}

最初扩展

🌐 Initially expanded

最初将 isExpanded 设置为 true，以默认显示内容。

🌐 Set isExpanded to true initially to show the content by default.

InitiallyExpandedExample.tsx

import { useState } from 'react';
import { Host, DisclosureGroup, Text } from '@expo/ui/swift-ui';

export default function InitiallyExpandedExample() {
  const [isExpanded, setIsExpanded] = useState(true);

  // A disclosure group fills the width it is given, so `matchContents` collapses it.
  return (
    <Host style={{ flex: 1 }}>
      <DisclosureGroup
        label="Details"
        isExpanded={isExpanded}
        onIsExpandedChange={setIsExpanded}>
        <Text>This content is visible by default.</Text>
      </DisclosureGroup>
    </Host>
  );
}

自定义标签

🌐 Custom label

当标签需要自定义 SwiftUI 内容或修饰符而不是 label 字符串属性时，使用 DisclosureGroup.Label。

🌐 Use DisclosureGroup.Label when the label needs custom SwiftUI content or modifiers instead of the label string prop.

CustomLabelDisclosureGroupExample.tsx

import { useState } from 'react';
import {
  DisclosureGroup,
  Form,
  Host,
  Section,
  Text,
} from '@expo/ui/swift-ui';
import { font, foregroundStyle } from '@expo/ui/swift-ui/modifiers';

export default function CustomLabelDisclosureGroupExample() {
  const [isExpanded, setIsExpanded] = useState(false);

  return (
    <Host style={{ flex: 1 }}>
      <Form>
        <Section>
          <DisclosureGroup
            isExpanded={isExpanded}
            onIsExpandedChange={setIsExpanded}>
            <DisclosureGroup.Label>
              <Text
                modifiers={[
                  font({ weight: 'semibold' }),
                  foregroundStyle('#0a7ea4'),
                ]}>
                Network options
              </Text>
            </DisclosureGroup.Label>
            <Text>Wi-Fi</Text>
            <Text>Bluetooth</Text>
            <Text>Cellular data</Text>
          </DisclosureGroup>
        </Section>
      </Form>
    </Host>
  );
}

应用接口

🌐 API

import { DisclosureGroup } from '@expo/ui/swift-ui';

Component

`DisclosureGroup`

iOS

Type: React.Element<DisclosureGroupProps>

DisclosureGroupProps

`children`

iOS

Type: ReactNode

`isExpanded`

iOS

Optional • Type: boolean

Controls whether the disclosure group is expanded.

`label`

iOS

Optional • Type: string

Text label for the disclosure group. Use DisclosureGroup.Label for custom label content.

`onIsExpandedChange`

iOS

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

A callback that is called when the expansion state changes.

Inherited props

CommonViewModifierProps