firebase requête d'horodatage
Query query = mFirestore.collection("rootcollection")
.orderBy("timestamp", Query.Direction.DESCENDING)
.whereEqualTo("month", 3);
horodatage de la requête firebase
Query query = mFirestore.collection("rootcollection")
.orderBy("timestamp", Query.Direction.DESCENDING)
.whereEqualTo("month", 3);