After I send a notification:
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(context)
.setSmallIcon(myVarSmallIconResId)
.setContentTitle(myVarTitle)
.setContentText(myVarText);
//set bigPicture from Bitmap
Bitmap bitmap_image = BitmapFactory.decodeResource(context.getResources(), R.drawable.some_id);
NotificationCompat.BigPictureStyle s = new NotificationCompat.BigPictureStyle().bigPicture(bitmap_image);
s.setSummaryText("Summary text appears on expanding the notification");
s.setBigContentTitle("Big Content Title");
mBuilder.setStyle(s);
Notification appear expanded. But after 10 seconds, it contracted.
How I can to manage this time?