Make FirebaseRecyclerAdapter get data under conditions and not all of them

Question

I need to adjust somehow the FirebaseRecyclerAdapter in order to get some data from my database and not all of them. Is there any way to achieve that? My end goal is to show

Answer 1

You can use a ListView instead of this firebaserecycler. Check an example:

List mylist = new ArrayList();

database.child("houses").addListenerForSingleValueEvent(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
             for (DataSnapshot postSnapshot: dataSnapshot.getChildren()) {
                 //Filter your data
                 String name = postSnapshot.child("name").getValue().toString();
                 if(name.equals("test") {
                     YourObject myObject = new YourObject(name);
                     mylist.add(myObject);
                 }
             }

             updatelist();
        }

        @Override
        public void onCancelled(DatabaseError databaseError2) {

        }
 });

Update your listview

 void updatelist() {
     ListView yourListView = (ListView) findViewById(R.id.myListView);

     // get data from the table by the HousesAdapter
     YourAdapter customAdapter = new YourAdapter(YourClass.this, R.layout.adapter_layout, mylist);

     yourListView.setAdapter(customAdapter);
 }

An adapter example:

public class YourAdapter extends ArrayAdapter {
    Context context;

    public YourAdapter(Context context, int resource, List items) {
        super(context, resource, items);
        this.context = context;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        View v = convertView;

        YourObject yourObject = getItem(position);

        if (v == null) {
            LayoutInflater vi;
            vi = LayoutInflater.from(getContext());
            v = vi.inflate(R.layout.adapter_layout, null);
        }

        TextView mytextview = (TextView) v.findViewById(R.id.mytextview);
        mytextview.setText(yourObject.getName());

        return v;
    }
}

YourObject class

public class YourObject {
    private String name;

    public YourObject(String name) {
         this.name = name;
    }

    public String getName() {
        return this.name;
    }

 }

Layout