Get key for items with FirebaseRecyclerViewAdapter?

[Justin Ricks]

Hi all,

I am accessing data structured like this:

    "UID": {

        "Groceries": {

            "amount": 25000

            , "refreshCode": 0

            , "lastRefresh": "YYYY-MM-DD"

            , "balance": 2695

        }

        , "Gas": {

            "amount": 4343

            , "refreshCode": 1

            , "lastRefresh": "YYYY-MM-DD"

            , "balance": -23

    }

And I would like to put it into a RecyclerView with FirebaseUI. One of the pieces of information that I need to display when I bind my ViewHolder is the key (in this case "Groceries" or "Gas". If I take my Firebase reference up to include UID, how would I access the names of the keys? Or do I need to store them as a separate value in each entry?

Also, is there a place to go for documentation on FirebaseUI for Android? That would be very useful for me.

Thanks!

-Justin

[Frank van Puffelen]

In your populateViewHolder() method you get a int position parameter. 

With that you can look up the reference to the item: Firebase ref = adapter.getRef(position);

And then from that you can get the key: ref.getKey();

[Justin Ricks]

And ref.getKey(); returns a string? Is there someplace that I can find documentation on how all this works? The GitHub readme only gets me so far.

Thanks lots!

[Frank van Puffelen]

getRef() returns a Firebase reference. Since that is not specific to FirebaseUI, it is documented in the regular Firebase documentation: https://www.firebase.com/docs/android/api/#firebase_methods

I highly recommend reading the Firebase guide for Android developers, which is a good introduction to "all things Firebase+Android".

[Justin Ricks]

Thanks, that's very helpful!

[Oyeleke Okiki]

Hi @Frank van Puffelen . Even months after, this was very helpful, thank you so much!