[null,null,["最后更新时间 (UTC):2025-07-25。"],[[["\u003cp\u003eAndroid Auto notifications are concise and prioritize essential information for glanceability while driving.\u003c/p\u003e\n"],["\u003cp\u003eNotifications appear as heads-up notifications (HUNs) for immediate interaction or in the Notification Center for later access.\u003c/p\u003e\n"],["\u003cp\u003eKey notification categories include navigation, calls, messages, reminders, and media, each designed for specific use cases in a driving context.\u003c/p\u003e\n"],["\u003cp\u003eThe Notification Center stores most notifications for later review, except for time-sensitive ones like navigation and media.\u003c/p\u003e\n"],["\u003cp\u003eNotifications in Android Auto are designed to minimize driver distraction and ensure safety.\u003c/p\u003e\n"]]],[],null,["# Notifications\n\n\u003cbr /\u003e\n\nNotifications provide succinct and timely information about relevant events,\nsuch as phone calls or messages, along with actions the user can take in\nresponse.\n\n*** ** * ** ***\n\nAnatomy\n-------\n\nIn Android Auto, notifications have been designed for glanceability by\nreducing the content to the most essential elements. Whether a notification\nappears as a heads-up notification (HUN) or as a card in the\nNotification Center, each notification contains:\n\n- An app icon identifying the app that sent the notification\n- Primary and secondary text relating to the notification\n- Up to 3 action buttons\n- Avatar imagery (if applicable)\n\n### Heads-up notification (HUN)\n\nThis HUN contain the following components: \n1. App icon \n2. Avatar \n3. Secondary action \n4. Dismiss\n\n### Notification Center card\n\nThis card is found in the Notification Center and contains the following components: \n1. App icon \n2. Avatar \n3. Primary action \n4. Secondary action **Note:** The specific actions available in a notification are determined by Android Auto based on the app category. These actions are not customizable by OEMs or app developers.\n\n*** ** * ** ***\n\nWhere notifications appear\n--------------------------\n\nUsers have two opportunities to interact with most notifications:\n\n- When they first appear, as heads-up notifications (HUNs)\n- Later, in the Notification Center\n\nA notification arriving as a HUN can appear at any time, temporarily covering\npart of the current screen. Users can respond to the notification using its\naction buttons, or they can dismiss it by tapping the close button. Otherwise,\nthe notification times out after a short interval and appears as a card in the\n[Notification Center](#notification_center),\nexcept in the special cases noted.\nUsers who miss a chance to respond to a HUN (left) can interact with it later in the Notification Center (right) **Note:** Navigation notifications appear only as HUNs. They are not sent to the Notification Center because they are relevant only at the moment of their arrival and might not be of interest later. Other categories of notifications remain accessible in the Notification Center unless withdrawn or expired by the sending application.\n\n*** ** * ** ***\n\nCategories of notifications\n---------------------------\n\nNotifications displayed in Android Auto are restricted to those considered\nimportant enough to appear in a driving situation and potentially\ninterrupt the driver.\n\nThese include the following categories of notifications:\n\n- Navigation instructions (HUN only; not saved to Notification Center)\n- Phone calls (HUN only; not saved to Notification Center)\n- Messages\n- Reminders (Notification Center only)\n\nExamples of notifications in these categories are shown in the next sections.\n\n### Navigation notifications\n\nNavigation notifications appear only as HUNs, since they contain time-sensitive\nnavigation instructions that might not be relevant later. App developers can\ncustomize the background color of navigation notifications to make them more\nnoticeable, as shown in the examples.\nNavigation HUN\n\n### Call notifications\n\nCall notifications appear only as HUNs. Buttons on the HUN allow the user to\nanswer or decline the call.\nCall HUN\n\n### Message notifications\n\nMessage notifications arrive as HUNs and then are sent to the\nNotification Center. Users who want to stop messages in a particular\nconversation from appearing as HUNs can mute the conversation, so the\nmessages appear only in the Notification Center.\n\nUsers can play messages and reply to them using voice, with the help of the\nAssistant.\nMessage HUN\n\n### Reminder notifications\n\nUsers can view reminder notifications in the Notification Center.\nReminder notification card\n\n*** ** * ** ***\n\nNotification Center\n-------------------\n\nAfter appearing briefly as heads-up notifications (HUNs), most notifications\nare stored in the Notification Center. (The exceptions are Navigation and Media\nnotifications, plus any notifications withdrawn or expired by the sending\napplication). Users can access the Notification Center from the bell-shaped\n**Notifications** button on the\n[nav bar](/cars/design/android-auto/product-experience/system-ui/nav-bar).\n\nThe Notification Center displays notification cards in a vertically scrolling\nlist. Cards are ordered by recency, with the most recently received or\ncreated notifications at the top.\nThe Notification Center provides access to stored notifications\n\nTo keep the list length in the Notification Center manageable and limit driver\ndistraction, older notifications may be pushed from the Notification Center\nto make room for newer ones. All notifications from the Notification Center,\neven those that are removed, remain available on the phone."]]