Android Auto 中不显示通知

Question

我在尝试在 Android Auto 中显示通知时遇到了麻烦。

我已经按照配置指南添加了对 Android Auto 1的支持和 Android Auto 2中的通知支持。 但是我不清楚通知的文档。 因此，如果我的代码有问题，我会寻求帮助。

目前，通知显示在设备上，但不在 Android auto 上。 我正在使用 Desktop Head Unit 3进行测试

谢谢！

  fun builder(subject : String, title: String, context: Context) : String {

    val ACTION_REPLY = "com.example.native_notification.Notifications.reply"
    val ACTION_MARK_AS_READ = "com.example.native_notification.Notifications.mark_as_read"

    try {
        //Create the NotificationChannel
        val channelId = "NOTIFICATION_AUTO";
        val name = "Notificaciones android auto";
        val descriptionText = "Notify about status of your services";
        val importance = NotificationManager.IMPORTANCE_HIGH
        val mChannel = NotificationChannel(channelId, name, importance)
        mChannel.description = descriptionText;
        // Register the channel with the system; you can't change the importance
        // or other notification behaviors after this
        val notificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager

        notificationManager.createNotificationChannel(mChannel)

        val intent = Intent().apply {
            putExtra(EXTRA_MESSAGE, "intent working")
        }

        val pendingIntent = PendingIntent.getActivity(context, 2 ,intent,PendingIntent.FLAG_UPDATE_CURRENT)


        val icon: Icon = Icon.createWithResource(context, R.drawable.ic_logo)

        val longMessage: Long = 1

        var action: Notification.Action =
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
                Notification.Action.Builder(icon,
                    "Ok,", pendingIntent)
                    .setSemanticAction(Notification.Action.SEMANTIC_ACTION_MARK_AS_READ)
                    .build()
            } else {
                TODO("VERSION.SDK_INT < P")
            }


        val p = Person.Builder().setName("Gopass").build()

        val style: Notification.Style = Notification.MessagingStyle(p)
            .setConversationTitle("this is a title")
            .addMessage(Notification.MessagingStyle
                .Message("this is the text", longMessage, p))

        val newMessageNotification = Notification.Builder(context, channelId)
            .setContentTitle(title)
            .setContentText(subject)
            .setCategory(Notification.CATEGORY_MESSAGE)
            .setSmallIcon(R.drawable.ic_logo)
            .setLargeIcon(icon)
            .setStyle(style)
            .setVisibility(Notification.VISIBILITY_PUBLIC)
            .addAction(action)
            .extend(Notification.CarExtender())
            .build()
            
        return notificationManager.notify(0, newMessageNotification).toString();

    }
    catch(ex: Exception) {
        return ex.toString()
    }
}

Answer 1

要在车内显示通知，您需要添加

CarAppExtender.Builder()
                    .setImportance(NotificationManager.IMPORTANCE_HIGH)
                    .build()