[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-08-28。"],[],[],null,["If your app contains multiple destinations for users to traverse, we recommend\nemploying layout and navigation pairings that are commonly used by other apps.\nBecause many users already possess the mental models for these pairings, your\napp will be more intuitive for them.\n\nLayout and navigation pairings\n\nThe navigation bar and modal navigation drawer are used as primary navigation\npatterns for parent layout views and primary navigation destinations. \n\nThe navigation bar can hold three to five navigation destinations across the\nsame hierarchy level. This component translates to the navigation rail for large\nscreens.\n\n\nAlthough the navigation drawer can hold more than five navigation destinations,\nthe pattern is not as ideal as the navigation bar.\nThis is due to the need to reach to the top bar on compact sizes. \n\n[Material 3 Tabs](https://m3.material.io/components/tabs/overview) and the [bottom app bar](https://m3.material.io/components/bottom-app-bar/overview) are\nsecondary navigation patterns that you can can use to supplement primary\nnavigation or appear on children views.\n\n\nHere, tabs act as a secondary navigation layer to group sibling content.\n\nLayout actions\n\nProvide controls to enable users to accomplish actions. Common patterns include\ntop bar actions, floating action button (FAB), and menus. \n\nFor actions of the highest importance, a [FAB](https://m3.material.io/components/floating-action-button/overview) provides a large\nand prominent button for the user. Provide only one action at a time at this\nlevel. A FAB can appear in multiple sizes and an expanded form, which includes a\nlabel. Use [Scaffold](/jetpack/compose/components/scaffold) to pin a FAB, making sure it's always\nvisible even on scroll by.\n\n\nA floating action button (FAB) that allows the\nuser to quickly add plants to the plant gallery\n\nYou can place secondary actions within the top bar or, if it's grouped near\nrelated content, within the page.\n**Figure 20:** Alert action in the top bar on show detail (left) and overflow icon inline of list item (right)\n\nFor any additional actions that aren't promptly or frequently needed, add those\nactions in an overflow menu."]]
