我如何从前台服务通知中获取天文台值并将其传递给我的活动

Question

我正在使用以下代码在前台服务通知上使用NotificationCompat.Builder setUsesChronometer创建一个计时器：

 Intent intent = new Intent(this, MyActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        intent.putExtra("data","somedata");
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent,  PendingIntent.FLAG_UPDATE_CURRENT);

NotificationCompat.Builder mBuilder=  new NotificationCompat.Builder(context, PRIMARY_CHANNEL)
                .setContentTitle(title)
                .setContentText(message)
                .setStyle(new NotificationCompat.BigTextStyle()
                        .bigText(message
                        ))
                .setPriority(NotificationCompat.PRIORITY_DEFAULT);

        if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            mBuilder.setSmallIcon(R.drawable.app_icon_white);
            mBuilder.setColor(context.getResources().getColor(R.color.theme_color));
        } else {
            mBuilder.setSmallIcon(R.drawable.app_icon_white);
        }

        Uri soundUri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + context.getPackageName() + "/" + R.raw.outgoing);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            CharSequence name = context.getResources().getString(R.string.feroz_channel_name);
            String description = context.getResources().getString(R.string.feroz_channel_description);
            int importance = NotificationManager.IMPORTANCE_DEFAULT;
            NotificationChannel channel = new NotificationChannel(PRIMARY_CHANNEL, name, importance);
            channel.enableLights(true);
            channel.setLightColor(context.getResources().getColor(R.color.theme_color));
            channel.enableVibration(true);
            channel.setDescription(description);
            channel.setSound(soundUri, new AudioAttributes.Builder()
                    .setUsage(AudioAttributes.USAGE_NOTIFICATION)
                    .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                    .build());
            NotificationManager notificationManager1 = context.getSystemService(NotificationManager.class);
            notificationManager1.createNotificationChannel(channel);
        }

    mBuilder.setUsesChronometer(true);
        mBuilder.setContentIntent(pendingIntent);

我在此通知上设置了待处理的意图。我如何通过/使用计时器，当用户单击通知并打开MyActivity时，它应该显示相同的计时器？请提出从同步到活动保持同步/共享计时码表的方法是什么？