主屏幕由多个元素（顶层除外，该层仅在第二个应用打开时显示）的组合构成。
纵向体验包括以下元素：
- 基础层，建议用于运行导航应用
- 可以运行任何类型的应用的顶层
- 包含音频控件的控制栏
- Sys 界面：
- 状态栏（屏幕顶部），可访问个人资料选择器和快速控件
- 系统导航栏（屏幕底部），包含舒适控件、通知、启动器和语音助理
空间模型
如未另行说明，那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可，并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情，请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC)：2025-07-25。
[null,null,["最后更新时间 (UTC)：2025-07-25。"],[[["\u003cp\u003eThe Home screen is composed of a base layer, top layer, control bar, and Sys UI.\u003c/p\u003e\n"],["\u003cp\u003eThe base layer is ideal for navigation, while the optional top layer can run any app.\u003c/p\u003e\n"],["\u003cp\u003eThe system UI allows access to key controls and information like audio, notifications, and the launcher.\u003c/p\u003e\n"],["\u003cp\u003eThe control bar provides easy access to audio controls, while the status bar houses profile and quick controls.\u003c/p\u003e\n"],["\u003cp\u003eThe system navigation bar offers comfort controls, notifications, the app launcher, and access to the voice assistant.\u003c/p\u003e\n"]]],[],null,["# Spatial model\n\n\u003cbr /\u003e\n\nThe combination of several elements (except the top layer, which is present only\nwhen a second app is opened) makes up the Home screen. \n\nThe portrait experience includes these elements:\n\n- **Base layer**, recommended to run a navigation app\n- **Top layer** that can run any kind of app\n- **Control bar** with audio controls\n- **Sys UI** :\n - **Status bar** (top of screen) with access to profile selector and quick controls\n- **System navigation bar** (bottom of screen) with comfort controls, notifications, launcher, and voice assistant"]]