Apps Divide RecyclerView into sections with header

[Palkesh Jain]

I have an Activity which displays person's image and name in RecyclerView in Grid Layout with three column.
Eg-
pic pic pic
Name Name Name

How can I convert it into section according to Locality.
Eg-
Colony_1
Pic pic pic
NAme name name

Pic pic pic
NAme name name

Colony_2
Pic pic pic
NAme name name
And so on....