CODEWITHSUNDEEP
androidsearchfirebasefirebase-realtime-database
user7575308
user7575308

Reputation: 81

Find all match in firebase real time database

Hello please I need search in database in firebase all appearance with one parameter and write it on display or save in object. (if save in object I can process it)

My database looking

My data

And i need get all match mDatabaseReference.child("horse").child(kon.getUid()).child("plemeno") with "Hnedy"

and save somewhere. or process write on display and search second.

I don't know why...

Thanks.

If I need run over all database for search or it's simply here.

Please give me all advice I select best for me.

If you need more info please write, but I don't know how you need.

..I would not know what to say

////////////////////////////////////////////////

for first I write on display all databse with thise code.. 

private void addEventFirebaseListener() {
    //Progressing
    circular_progress.setVisibility(View.VISIBLE);
    list_data.setVisibility(View.INVISIBLE);

    mDatabaseReference.child("horse").addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            if(list_kone.size() > 0)
                list_kone.clear();
            for(DataSnapshot postSnapshot:dataSnapshot.getChildren()){
                Kon kon = postSnapshot.getValue(Kon.class);
                list_kone.add(kon);
            }
            ListViewAdapter adapter = new ListViewAdapter(All.this,list_kone);
            list_data.setAdapter(adapter);

            circular_progress.setVisibility(View.INVISIBLE);
            list_data.setVisibility(View.VISIBLE);
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {

        }
    });
}

but I thing so it's no important for search

Upvotes: 0

Views: 1513

Answers (1)

Valentino
Valentino

Reputation: 2135

Try this:

mDatabaseReference.child("horse").orderByChild("plemeno").equalTo("Hnedy").addListenerForSingleValueEvent(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) { 
            // retrieve the data into an object: kon here
            for(DataSnapshot postSnapshot : dataSnapshot.getChildren()){
                Kon kon = postSnapshot.getValue(Kon.class);
                if (cenaFilter && kon.getCena().equals("100")) {
                   // RETRIEVE DATA
                }
            }
        }

        @Override
        public void onCancelled(FirebaseError firebaseError) {

        }
    });

Here cenaFilter is a boolean which equals to true if the user has selected this specific filter, false otherwise

Upvotes: 2

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