Firebaseui-android: Order Firebase RecyclerView by Child Value

[troy21688]

I have a data structure (see below) and I essentially want to create a "trending" section that emphasizes the items that have the most votes. Votes are accounted for in the vote_count field of my Firebase database.

I know there is the .orderByChild() method available in Firebase. Would it be possible to have my RecyclerView sort the data based on the value of the vote_count child (descending order)?

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[SUPERCILEX]

@troy21688 indexed or plain?

[troy21688]

Can you elaborate Alex? I do not understand what you mean. Appreciate the
prompt response.

On Jan 30, 2017 4:13 PM, "Alex Saveau" [e-mail] wrote:

@troy21688 https://github.com/troy21688 indexed or plain?

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[SUPERCILEX]

Sorry, are you using the index adapters or just the plain ones (FirebaseIndexRecyclerAdapter vs FirebaseRecyclerAdapter)?

[troy21688]

The plain adapter but believe I have my Pojo set up for index if necessary.

On Jan 30, 2017 5:14 PM, "Alex Saveau" [e-mail] wrote:

Sorry, are you using the index adapters or just the plain ones (
FirebaseIndexRecyclerAdapter vs FirebaseRecyclerAdapter).

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[SUPERCILEX]

@troy21688 No, that's good. Since you can pass in a query, just use orderByChild("vote_count") for the query/ref you pass into your adapter.

[samtstern]

I believe @SUPERCILEX has the correct solution here so closing the issue.

@troy21688 in general it's better to post "how to" type questions on StackOverflow, issues here should be reporting instances where the library does not work as expected.

[jesusignazio]

And what about to make data appear in descending order as he requested?
There is no inverted .orderByChild() function...

Edit: solution: here

[karamJAB]

@jesusignazio setReverseLayout with your layout manager and then setstackfromend will do the descending order

[jesusignazio]

@karamJAB yes, I edited my message when I got the solution.

Thanks.