android - 通知收件箱样式会在收到通知时更新

Question

我正在尝试制作一种通知样式，我希望所有通知都在一个引擎盖下，并且它们将按行显示。如果有新的通知来了，它应该在第二个最新的。通知列表应为 5，这意味着只能显示最新的 5。

我正在为此使用下面的代码，我不知道如何实现这一点，我也尝试了 StackBuilder 但我明白了，这可以在比我现在使用的 API 更高的 API 上工作。

NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
Intent notificationIntent = new Intent(this, GcmActivity.class);
notificationIntent.putExtra("title", messagetype);
notificationIntent.putExtra("message", msg);
PendingIntent intent = PendingIntent.getActivity(this, 0,notificationIntent, 0);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
        | Intent.FLAG_ACTIVITY_SINGLE_TOP);

NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this).setSmallIcon(R.drawable.ic_launcher)
        .setContentTitle("MY MESSENGER").setContentText("MESSAGES");
NotificationCompat.InboxStyle inboxStyle = new NotificationCompat.InboxStyle();
inboxStyle.setBigContentTitle("MESSAGES" + " Details");

    inboxStyle.addLine(messagetype + ":" + msg);


mBuilder.setStyle(inboxStyle);
mBuilder.setContentIntent(intent);
mBuilder.setAutoCancel(true);
notificationManager.notify(Integer.parseInt("0"), mBuilder.build());

我知道我可以通过在创建时添加任意数量的行来做到这一点

NotificationCompat.InboxStyle inboxStyle = new NotificationCompat.InboxStyle();  

但是我希望每当我的 GCMIntentService 被调用时，这个列表都会被更新。

我也使用下面的代码尝试了这项工作，但是也没有用

 NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
Intent notificationIntent = new Intent(this, GcmActivity.class);
notificationIntent.putExtra("title", messagetype);
notificationIntent.putExtra("message", msg);
PendingIntent intent = PendingIntent.getActivity(this, 0,notificationIntent, 0);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
        | Intent.FLAG_ACTIVITY_SINGLE_TOP);



NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(  
        this).setAutoCancel(true)  
        .setContentTitle("MY MESSENGER")  
        .setSmallIcon(R.drawable.ic_launcher)
        .setContentText("MESSAGES");  

 NotificationCompat.InboxStyle inboxStyle = new NotificationCompat.InboxStyle();  

for(int j= 0; j<listMessage.size(); j++)
  inboxStyle.addLine(listMessage.get(j));  
mBuilder.setStyle(inboxStyle);
mBuilder.setContentIntent(intent);
notificationManager.notify(0, mBuilder.build());

Answer 1

我遇到了同样的问题，并通过将通知持久保存在数据库中以在新通知到达时加载它们并在单击或删除时删除它们来解决它。

DatabaseHelper dbHelper = new DatabaseHelper(this);
    Cursor notifications = dbHelper.getAllNotifications();
    NotificationCompat.Builder mBuilder = extractNotifications(title, msg, contentIntent, notifications);
    dbHelper.insertNotification(title + ": " + msg);

private NotificationCompat.Builder extractNotifications(String title, String msg, PendingIntent contentIntent, Cursor notifications) {
    NotificationCompat.Builder mBuilder;
        mBuilder =
                new NotificationCompat.Builder(this)
                        .setSmallIcon(R.drawable.ic_icon)
                        .setContentTitle(title)
                        .setStyle(new NotificationCompat.BigTextStyle()
                                .bigText(NOTIFICAITONS))
                        .setContentText(msg)
                        .setAutoCancel(true)
                        .setLights(Color.WHITE, 1000, 5000)
                        .setDefaults(Notification.DEFAULT_VIBRATE |
                                Notification.DEFAULT_SOUND | Notification.DEFAULT_LIGHTS)
                        .setContentIntent(contentIntent);

        NotificationCompat.InboxStyle inboxStyle =
                new NotificationCompat.InboxStyle();

        inboxStyle.setBigContentTitle(NOTIFICAITONS);
        while (notifications.moveToNext())
        {
            inboxStyle.addLine(notifications.getString(notifications.getColumnIndex(DatabaseHelper.NOTIFICATION_MESSAGE)));
        }
        inboxStyle.addLine(title + ": " + msg);
        mBuilder.setStyle(inboxStyle);
    return mBuilder;