[null,null,["最后更新时间 (UTC)：2025-08-28。"],[],[],null,["A layout defines the visual structure for a user to interface with your app,\nsuch as in an activity. Android provides a range of libraries, canonical\nstarting points, and techniques to display and position content.\n\nGet Started\n\nStart designing Android layouts by learning [app anatomy](/develop/ui/compose/layouts/adaptive/app-anatomy) then how to\n[structure your app's content](/develop/ui/compose/layouts/adaptive/content-structure).\n\nTakeaways \n**Device safe areas**\n\n\nHonor device safe areas, which includes parts of the UI such as display\ncutouts, edge-to-edge insets, edge displays, software keyboards, and system\nbars. Provide a flexible layout for users to\ninteract with the keyboard.\nWarning: Be careful when covering content with the keyboard.\nAlas, your browser doesn't support HTML5 video. That's OK! You can still [download the video](/static/images/design/ui/mobile/layout-basics-video-1.mp4) and watch it with a video player. \n**Interaction ergonomics**\n\n\nKeep essential interactions, like primary navigation, in a reachable screen\narea. Floating action buttons (FABs) provide a\nprominent and reachable interaction point \n**Containment groups**\n\n\nUse containment to group related content to guide the user through content and\nactions. Cards using explicit containment to group content with related actions.\n\n**Alignment**\n\nProvide consistent alignment between similar content and UI elements.\n\n\u003cbr /\u003e\n\ncheck_circle\n\nDo \nEstablish consistent spacing between like elements. \ncancel\n\nDon't \nDisrupt readability by inconsistently spacing like elements, which can make designs appear haphazard. \n**Layout orientation**\n\n\nDon't stick to portrait or an idealized layout: Consider different aspect\nratios, size classes, and resolutions that users may encounter.\n\n\n**Essential interactions**\n\n\nDon't overwhelm your user with too many actions per view. \n**Notate layout specs**\n\n\nWhen building custom layouts, notate how content should sit within the layout\nusing alignment, constraints, or gravity terms. Include how images should\nrespond to their container to display properly.\n\n\u003cbr /\u003e"]]
