安卓Notification 推送多条只显示一条问题

转载请注明出处　http://blog.youkuaiyun.com/qq_31715429/article/details/50978587 
本文出自：猴菇先生的博客

 

(1).推送多条手机全能接收，但是只显示一条通知，后一条会顶掉前一条，最后只显示一条最新的notification

    Intent intent = new Intent(context, MainActivity.class);
    intent.putExtra(PUSH_CLASSID,pushBean.getClassId());
    PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent,
            PendingIntent.FLAG_UPDATE_CURRENT);

    NotificationCompat.BigTextStyle bigTextStyle = new NotificationCompat.BigTextStyle();
    bigTextStyle.setBigContentTitle(title);
    bigTextStyle.bigText(content);

    Notification nc = new NotificationCompat.Builder(context)
            .setDefaults(Notification.DEFAULT_ALL)
            .setTicker(content)
            .setContentTitle(title)
            .setContentText(content)
            .setAutoCancel(true)
            .setSmallIcon(R.drawable.ic_launcher)
            .setContentIntent(pendingintent)
            .setStyle(bigTextStyle)
            .build();
    NotificationManager nm = (NotificationManager) context.getSystemService(Service.NOTIFICATION_SERVICE);
    nm.notify(id,nc);

最后的原因是nm.notify(id, nc)中的id是一个固定值，需要定义一个变量 
public int id = 0; 
然后修改nm.notify(id++, nc);这样就会显示多条推送。

(2). 还有一个问题，就是虽然会显示多条推送，但是点击最早的前几条条推送，如果弹窗的话，显示的总是最新的那条数据信息 
关键在这：

PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

• 这个方法的第二个参数应该是对应不同的推送的id，把这个值改成不同的值，以对应不同的推送信息，就可以显示不同的信息。本来想的是每次推送生成一个唯一值，比如System.currentTimeMillis()或者UUID.randomUUID(),但是考虑到PendingIntent.getActivity方法第二个参数需要int值，怕出现类型转换异常，后来改用SharedPreference在本地记录一个int值，每次接收推送时get一下,再++一下，接收完再put一下。

 

 

private void sendNotification(Bundle bundle, GetFirebaseMessageNotificationResponse notification) {
    ++NOTIFY_ID;
    if (bundle != null) {
        AnalyticsUtil.getInstance().facebookEventLogger(AppConstant.AnalyticEvent.NOTIFICATION_MESSAGE_SHOW, "type", bundle.getString("type"));
    }
    Intent intent = new Intent(this, WelcomeActivity.class);
    intent.putExtras(bundle);
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    intent.putExtra(AppConstant.ActivityBundle.NOTIFICATION_LAUNCH_TO_WELCOME, true);
    intent.putExtra(AppConstant.Common.IntentKey.FROM_NOTIFICATION, AppConstant.Common.FROM_NOTIFICATION_KEY);
    if (notification != null) {
        intent.putExtra(AppConstant.Common.IntentKey.FROM_NOTIFICATION_CONTENT, notification.getContent());
    }
    PendingIntent pendingIntent = PendingIntent.getActivity(this, NOTIFY_ID /* Request code */, intent, PendingIntent.FLAG_UPDATE_CURRENT);

    Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
            .setSmallIcon(R.drawable.icon_logo_white).
                    setContentTitle(notification.getTitle())
            .setContentText(notification.getContent()).setAutoCancel(true)
            .setSound(defaultSoundUri).setContentIntent(pendingIntent);
    Bitmap bm = BitmapFactory.decodeResource(CCApplication.getInstance().getResources(), R.mipmap.monkey_icon);
    notificationBuilder.setLargeIcon(bm);

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

    notificationManager.notify(NOTIFY_ID /* ID of notification */, notificationBuilder.build());
}