Android：分组通知和摘要仍然分别显示在4.4和以下

我想在Android Wear上实施堆叠通知为此，我为每个“商品”创build了1个摘要通知和N个单独通知。 我只想要摘要在手机上显示。 这是我的代码：

private void showNotifications() { NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE); showNotification1(notificationManager); showNotification2(notificationManager); showGroupSummaryNotification(notificationManager); } private void showNotification1(NotificationManager notificationManager) { showSingleNotification(notificationManager, "title 1", "message 1", 1); } private void showNotification2(NotificationManager notificationManager) { showSingleNotification(notificationManager, "title 2", "message 2", 2); } protected void showSingleNotification(NotificationManager notificationManager, String title, String message, int notificationId) { NotificationCompat.Builder builder = new NotificationCompat.Builder(this); builder.setContentTitle(title) .setContentText(message) .setSmallIcon(R.mipmap.ic_launcher) .setGroupSummary(false) .setGroup("group"); Notification notification = builder.build(); notificationManager.notify(notificationId, notification); } private void showGroupSummaryNotification(NotificationManager notificationManager) { NotificationCompat.Builder builder = new NotificationCompat.Builder(this); builder.setContentTitle("Dummy content title") .setContentText("Dummy content text") .setStyle(new NotificationCompat.InboxStyle() .addLine("Line 1") .addLine("Line 2") .setSummaryText("Inbox summary text") .setBigContentTitle("Big content title")) .setNumber(2) .setSmallIcon(R.mipmap.ic_launcher) .setCategory(Notification.CATEGORY_EVENT) .setGroupSummary(true) .setGroup("group"); Notification notification = builder.build(); notificationManager.notify(123456, notification); } 

这在Android 5.1上运行得很好，只有摘要显示在手机的通知栏中：

但在Android 4.4上，它也显示了个人通知1和2：

在这两种情况下，Android Wear的通知都会根据需要显示在堆栈中。 如何让Android 4.4只在通知栏中显示汇总通知？

Answer 1

通过使用固定这个

 NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this); 

代替

 NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE); 

并用相应方法签名中的NotificationManagerCompatreplaceNotificationManager。