I have my database in firebase and I want you to return the data of 10 in 10 every time you press a button. How can I do this?? I am programming in android studio and I am new in this of firebase Thank you very much ...
This is what I'm doing but it does not return any data
What you are trying to do is called page. Try the following
mOffset = 0;
mPageSize = 10;
mOffset += mPageSize;
mQuery = mDatabase.child("TU_PATH_FIREBASE")
.limitToFirst(mPageSize)
.startAt(mOffset);
In summary, mPageSize indicate how many items you want to read (field limitToFirst )
The mOffset helps you to know how many items you have already read. When it is your first reading, mOffset is 0 and you will read from 0 to 9, and in your second reading, you must increase that value to 10 (page size) so that it reads from 10 to 19 and so on