Firebase Data Desc Sorting in Android

Question

I am storing data in Firebase storage.

Object Comment with attribute timestamp. When I push data from device to Firebase I\'m populating

Answer 1

add a column namely timestamp with values (-1*System.currentTimeMillis()) and while fetching data use orderByChild("timestamp").limitToFirst(15) or orderByChild("timestamp").limitToLast(15) according to your requirement. it is smartway to get data in sorted manner, as firebase has no rule for descending order.