How I Can Get Data Of Next Child And Show It In List View From Firebase Realtime Database

I am developing an Audio Hadith, now I want to show the first key as a category like Ramadan, Zakat etc and in every category, there will lot of audio hadith's title and audio URL.

Solution 1:

You cannot query your actual database structure for getting all Hadith objects in one go because each one of those object exists in a separate node. To solve this, I recommend you change your database strucuture by reducing the number of nodes like this:

Firebase-root
    |
    --- Hadiths
          |
          --- hadith1
          |     |
          |     --- title: "This is hadith1 title"
          |     |
          |     --- url: "eg.example.com"
          |     |
          |     --- type: "Ramadan"
          |
          --- hadith2
                |
                --- title: "This is hadith2 title"
                |
                --- url: "eg.example.com"
                |
                --- type: "Zakat"

Now, to query all hadiths for Ramadan, please use the following query:

DatabaseReferencerootRef= FirebaseDatabase.getInstance().getReference();
Queryquery= rootRef.child("Hadiths").orderByChild("type").equalTo("Ramadan");
query.addListenerForSingleValueEvent(/* ... */);