# 移动导航 · MobileNav

- 页面: https://jiguang132.com/zh/resources/astryx/docs/mobile-nav
- 资源: Astryx (https://jiguang132.com/zh/resources/astryx.md)
- 全部指南: https://jiguang132.com/zh/resources/astryx/docs.md

移动导航用于导航场景。下面的官方示例展示原生用法与状态，属性名保持上游 API。

## 安装与前置条件

```bash
npm install @astryxdesign/core@0.7.1 @astryxdesign/theme-neutral@0.7.1 @stylexjs/stylex@0.19.0
```

需要 React 19+，按顺序导入基础 CSS 和主题，并设置 Theme Provider。参见[开始使用](/resources/astryx/docs/getting-started)。

## 示例与使用方式

- **移动导航 · 综合展示 1**：首先体验这个示例，再查看代码理解组件的组合方式。
- **移动导航 · 综合展示 2**：可交互查看这一用法的行为，复制代码时保留它实际使用的属性与导入。
- **移动导航 · 基础用法 3**：可交互查看这一用法的行为，复制代码时保留它实际使用的属性与导入。
- **移动导航 · 交互示例 4**：可交互查看这一用法的行为，复制代码时保留它实际使用的属性与导入。
- **移动导航 · 基础用法 5**：可交互查看这一用法的行为，复制代码时保留它实际使用的属性与导入。
- **移动导航 · 交互示例 6**：可交互查看这一用法的行为，复制代码时保留它实际使用的属性与导入。

## API 与上游详细参考

优先使用 0.7.1 官方中文说明；上游尚未提供中文的条目保留英文。属性名、类型及默认值保持原生 API，不把示例状态名称当成组件属性。

## Mobile Nav

A slide-out drawer for mobile navigation. MobileNav is the mobile counterpart to SideNav and accepts the same children. Use it on narrow viewports where a persistent sidebar is not practical.

### 使用建议

- Share the same nav items between MobileNav and SideNav by extracting them into a variable.
- Provide a header when the drawer's purpose is not obvious from its content.
- Inside AppShell, use MobileNavToggle to open the drawer; it reads state from context. Do not pass isOpen/onOpenChange to the toggle.
- 避免：Use MobileNav on desktop: use a persistent SideNav instead.

### 主题 API

```json
{
  "targets": [
    {
      "className": "astryx-mobile-nav",
      "visualProps": [
        "side"
      ]
    }
  ]
}
```

## Mobile Nav

A slide-out drawer for mobile navigation. Accepts SideNav children.

| 属性 | 类型 | 默认值 | 说明 |
|---|---|---|---|
| isOpen | boolean |  | Whether the drawer is open. Inside AppShell, this is managed automatically via context. Outside AppShell, provide this prop to control the drawer yourself. |
| onOpenChange | (isOpen: boolean) => void |  | Called when the drawer visibility changes (backdrop click, Escape key, or close button). Inside AppShell, this is managed automatically via context. |
| children * | ReactNode |  | Drawer content: typically SideNavSection/SideNavItem, or any ReactNode. |
| header | ReactNode |  | Header content for the drawer. Rendered next to the close button. Pass a string for a simple text heading, or a ReactNode for custom content (logo, search bar, etc.). |
| width | number | 320 | Drawer width in pixels. Capped at 85vw to prevent overflow on small screens. |
| side | 'start' \| 'end' \| 'auto' | 'auto' | Which side the drawer slides from. Start is left in LTR, right in RTL. Auto picks a side based on the trigger position. |

## Mobile Nav Toggle

Hamburger button that opens/closes the mobile nav drawer. Reads open state from AppShell context automatically: does NOT accept isOpen or onOpenChange props. Renders nothing above the mobile breakpoint.

| 属性 | 类型 | 默认值 | 说明 |
|---|---|---|---|
| children | ReactNode |  | Custom content to render instead of the default hamburger icon. |
| label | string | 'Open navigation' | Accessible label for the toggle button. |

### 组件结构

- **Navigation overlay**: Full-viewport dialog overlay that hosts the mobile navigation drawer.
- **Drawer**: Painted panel that slides in from the resolved viewport edge.
- **Header**: Fixed row containing optional header content and the close button.
- **Content**: Scrollable region containing the navigation content.
- **Close button**: Button that closes the navigation drawer.
- **Toggle button**: AppShell-aware Button that opens or closes the drawer on mobile viewports.


## 完整示例的额外依赖

部分示例使用独立图标包。示例清单中的每条安装命令包含该示例实际需要的依赖；若要运行本页全部示例，还需安装：

```bash
npm install @heroicons/react@2.2.0
```

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