i have implemented the firebase to read data from the url , it does't trigger the listener for initial state but it works only when i add value to JSON tree .. please help...
here is code snippet..
mFirebaseRef.child("article").addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot snapshot) {
for (DataSnapshot postSnapshot : snapshot.getChildren()) {
Article article = postSnapshot.getValue(Article.class);
articles.add(article);
}
}
@Override
public void onCancelled(FirebaseError firebaseError) {
Toast.makeText(context, "Floor update canceled: " + firebaseError.getMessage(),Toast.LENGTH_SHORT).show();
}
});