CODEWITHSUNDEEP
javaandroidfirebasegridviewfirebase-realtime-database
mohamed
mohamed

Reputation: 1

How to stop retrieve data from Firebase?

Stop retrieve data from Firebase after its loaded.

This is my code:

databaseReference.child("SHARE").addValueEventListener(new ValueEventListener() {
    @Override
    public void onDataChange(DataSnapshot dataSnapshot) {
        for (DataSnapshot ds : dataSnapshot.getChildren()) {
            information spacecraft = ds.getValue(information.class);
            spacecrafts.add(spacecraft);
        }
        adapter adapterView= new adapter(MainActivity.this, spacecrafts);
        gridView.setAdapter(adapterView);
    }
}

Upvotes: 0

Views: 1246

Answers (2)

Benjith Mathew
Benjith Mathew

Reputation: 1221

Use addListenerForSingleValueEvent()

databaseReference.child("SHARE").addListenerForSingleValueEvent(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            for (DataSnapshot ds : dataSnapshot.getChildren()) {

                information spacecraft = ds.getValue(information.class);
                spacecrafts.add(spacecraft);

            }
            adapter adapterView= new adapter(MainActivity.this, spacecrafts);
            gridView.setAdapter(adapterView);
        }

have a look on this answer https://stackoverflow.com/a/41579337/5868103

Upvotes: 2

Priya
Priya

Reputation: 692

Use addListenerForSingleValueEvent instead of addValueEventListener if you want to read the whole data once.

Or if you want to get update from onDataChange, you can remove the listner,

 ValueEventListener eventListener = databaseReference.child("SHARE").addValueEventListener(new   ValueEventListener() {
    @Override
    public void onDataChange(DataSnapshot dataSnapshot) {
        for (DataSnapshot ds : dataSnapshot.getChildren()) {

            information spacecraft = ds.getValue(information.class);
            spacecrafts.add(spacecraft);

        }
        adapter adapterView= new adapter(MainActivity.this, spacecrafts);
        gridView.setAdapter(adapterView);
    }

To remove the listener, 

databaseReference.child("SHARE").removeEventListener(eventListener);

Upvotes: 1

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