Android Wear Preview 堆叠式通知

Question

使用 setGroup 发送堆叠通知时遇到问题。在我调用 setGroup 的那一刻，设备或 Android Wear 模拟器上没有发送任何通知。一些示例代码...

    Intent intent1 = new Intent(this, AddActivity.class);
    PendingIntent pIntent1 = PendingIntent.getActivity(this, 0, intent1, 0);

    NotificationCompat.Builder nBuilder = new NotificationCompat.Builder(this);
    nBuilder.setContentTitle("Fence Monitor").setContentText("FENCE " + status).setSmallIcon(R.drawable.ic_launcher).setContentIntent(pIntent1);

    NotificationCompat.Builder nBuilder1 = new NotificationCompat.Builder(this);
    Notification secondNotification = nBuilder1.setContentTitle("Fence Monitor").setContentText("This is additional information related to this notification").setSmallIcon(R.drawable.ic_launcher).build();



    WearableNotifications.Action.Builder aBuilder = new WearableNotifications.Action.Builder(android.R.drawable.ic_input_add,"Add Content",pIntent1);
    WearableNotifications.Action action = aBuilder.build();

    RemoteInput.Builder rBuilder = new RemoteInput.Builder(QUICK_REPLY);
    RemoteInput rInput = rBuilder.setAllowFreeFormInput(true).setLabel("QUICK REPLY").build();


    WearableNotifications.Builder wBuilder = new WearableNotifications.Builder(nBuilder);
    Notification notification = wBuilder.setGroup(FENCE_NOTIFICATIONS_GROUP,order).addAction(action).addPage(secondNotification).addRemoteInputForContentIntent(rInput).build();


    //Notification notification = wBuilder.setGroup(FENCE_NOTIFICATIONS_GROUP,order).build();

    NotificationManagerCompat nManager = NotificationManagerCompat.from(this);
    int notificationId = (new Random()).nextInt();
    Log.d("Notification Id",""+notificationId);

    nManager.notify(notificationId, notification);

Answer 1

我在玩弄堆叠的通知，并意识到需要有一个摘要通知才能显示您的通知(至少在我的情况下是这样)。安卓文档:https://developer.android.com/wear/notifications/stacks.html#AddSummary提到这很重要，但没有说这是必需的。

无论哪种方式，试试这个，看看它是否有效。通过添加摘要通知，我能够让您的代码正常工作。

    /**
     * Create a summary notification
     */ 
    NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
    .setSmallIcon(R.drawable.alert_dialog_icon);
    WearableNotifications.Builder wearableBuilder = new WearableNotifications
            .Builder(builder)
    .setGroup(FENCE_NOTIFICATIONS_GROUP,
            WearableNotifications.GROUP_ORDER_SUMMARY);
    Notification summaryNotification = wearableBuilder.build();

    /**
     * Notify. First publish the summary notification and then send out the 
     * other multi-page notification.
     */
    NotificationManagerCompat nManager = NotificationManagerCompat.from(this);
    int notificationId = (new Random()).nextInt();
    Log.d("Notification Id",""+notificationId);
    nManager.notify(notificationId, summaryNotification);
    notificationId = (new Random()).nextInt();
    Log.d("Notification Id",""+notificationId);
    nManager.notify(notificationId, notification);