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Clash Royale CLAN TAG

Application does not show Firebase - Recyclerview [on hold]

I am having a big problem, my application does not display the data that is in the firebase, but also does not present any error, they can help me:

This is my Fragment:

View v;
private RecyclerView mRecyclerView;
private List<Adapter> listStore;
private DatabaseReference mStoreDatabase;
private RecyclerViewAdapter recyclerViewAdapter;
private RecyclerView mResultList;

public Sema_Fragment() {
// Required empty public constructor
}

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
v = inflater.inflate(R.layout.fragment_sema_, container,false);
mRecyclerView = (RecyclerView) v.findViewById(R.id.recycler_view);
recyclerViewAdapter = new RecyclerViewAdapter(getContext(),listStore);
mRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
mRecyclerView.setAdapter(recyclerViewAdapter);

return v;
}


@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

listStore = new ArrayList<>();

mStoreDatabase = FirebaseDatabase.getInstance().getReference("VAzdMWafK6cyhmJnOI4br5xiQg93");
mStoreDatabase.keepSynced(true);
mStoreDatabase.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
for(DataSnapshot store : dataSnapshot.getChildren()){
listStore.add(store.getValue(Adapter.class));
}
recyclerViewAdapter.notifyDataSetChanged();
}

@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}

@Override
public void onStart() {
super.onStart();

FirebaseRecyclerOptions<Adapter> options = new FirebaseRecyclerOptions.Builder<Adapter>()
.setQuery(mStoreDatabase, Adapter.class)
.build();

FirebaseRecyclerAdapter adapter = new FirebaseRecyclerAdapter<Adapter, AdapterViewHolder>(options) {

@Override
protected void onBindViewHolder(@NonNull AdapterViewHolder holder, int position, @NonNull Adapter model) {

holder.setDetails(getActivity().getApplicationContext(),
model.getProduct_name(),
model.getProduct_photo());

}

@Override
public AdapterViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.list_view, parent, false);

return new AdapterViewHolder(view);
}
};

mResultList.setAdapter(adapter);
}
// View Holder Class
public static class AdapterViewHolder extends RecyclerView.ViewHolder{

View mView;

public AdapterViewHolder(View itemView) {
super(itemView);

mView = itemView;
}

public void setDetails(Context applicationContext, String product_name, String product_photo) {

TextView productname = (TextView) mView.findViewById(R.id.product_name);
ImageView productphoto = (ImageView) mView.findViewById(R.id.product_photo_details);

productname.setText(product_name);
Glide.with(applicationContext).load(product_photo).into(productphoto);
}
}


}

This is my class:

public class Adapter {

private String Product_name;
private String Product_descript;
private String Product_price;
private String Product_photo;

public Adapter() {

}

public Adapter(String name, String descript, String price, String photo) {
this.Product_name = name;
this.Product_descript = descript;
this.Product_price = price;
this.Product_photo = photo;
}

public String getProduct_name() {
return Product_name;
}

public String getProduct_descript() {
return Product_descript;
}

public String getProduct_price() {
return Product_price;
}

public String getProduct_photo() {
return Product_photo;
}

public void setProduct_name(String product_name) {
Product_name = product_name;
}

public void setProduct_descript(String product_descript) {
Product_descript = product_descript;
}

public void setProduct_price(String product_price) {
Product_price = product_price;
}

public void setProduct_photo(String product_photo) {
Product_photo = product_photo;
}


And this is a picture in my firebase tab

enter image description here

And this is msg box android studio

E/RecyclerView: No adapter attached; skipping layout

No adapter attached; skipping layout


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