Android Studio recyclerview No adapter attached; skipping layout - android-studio

Question

Hello everyone i have a problem with recyclerview
the app works in my emulator bluestacks but when I started testing on other devices the program gives such an error recyclerview No adapter attached; skipping layout
this fragment activity code:
public class AsosiyFragment extends Fragment {
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.form_asosiy, container, false);
return rootView;
}
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
DBAdapter mDBAdapter = new DBAdapter(getContext());
Spinner spinner_viloyatlar = view.findViewById(R.id.spinner_viloyatlar);
RecyclerView recyclerView = view.findViewById(R.id.roza_vaqtlari);
recyclerView.setHasFixedSize(true);
Context context = view.getContext();
LinearLayoutManager layoutManager = new LinearLayoutManager(context);
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
recyclerView.setLayoutManager(layoutManager);
List<RamazonAdapter> ramazonAdapters = new ArrayList<>();
ramazonAdapters.clear();
String[] VILOYAT_NOMI_KIRIL = {
"Андижон","Бухоро",
"Жиззах","Қашқадарё",
"Қорақалпоғистон","Навоий",
"Наманган","Самарқанд",
"Сурхондарё","Сирдарё",
"Тошкент","Фарғона",
"Хоразм"
};
// Add viloyatlar to spinner
ArrayList<String> list = new ArrayList<String>();
for (int i = 0; i <= 12; i++){
list.add(VILOYAT_NOMI_KIRIL[i]);
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getContext(),R.layout.spinner_item,R.id.item,list);
spinner_viloyatlar.setAdapter(adapter);
// get all data from sqlite
Cursor res = mDBAdapter.getAllData();
final RamazonAdapter[] rAdapters = {null};
while (res.moveToNext()){
String data1 = res.getString(1);
String data2 = res.getString(2);
String data3 = res.getString(3);
String data4 = res.getString(4);
rAdapters[0] = new RamazonAdapter(data1,data2,data3,data4);
ramazonAdapters.add(rAdapters[0]);
Adapter adapter1 = new Adapter(getActivity(), ramazonAdapters);
adapter.notifyDataSetChanged();
recyclerView.setAdapter(adapter1);
}
}
}
this adapter:
public class Adapter extends RecyclerView.Adapter<Adapter.ViewHolder>{
Context context;
private List<RamazonAdapter> ramazonAdapterList;
public Adapter(Context context, List<RamazonAdapter> ramazonAdapterList){
this.context = context;
this.ramazonAdapterList = ramazonAdapterList;
}
#NonNull
#Override
public Adapter.ViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(context).inflate(R.layout.ramazon_item,parent,false);
return new Adapter.ViewHolder(view);
}
#Override
public void onBindViewHolder(#NonNull Adapter.ViewHolder holder, int position) {
RamazonAdapter ramazonAdapter = ramazonAdapterList.get(position);
holder.nameOfDay.setText(ramazonAdapter.getNameOfDay());
holder.dateOfRoza.setText(ramazonAdapter.getDate());
holder.iftorlikTime.setText(ramazonAdapter.getIftorlikTime());
holder.saharlikTime.setText(ramazonAdapter.getSaharlikTime());
}
#Override
public int getItemCount() {
return ramazonAdapterList.size();
}
class ViewHolder extends RecyclerView.ViewHolder {
TextView nameOfDay;
TextView dateOfRoza;
TextView iftorlikTime;
TextView saharlikTime;
public ViewHolder(#NonNull View itemView) {
super(itemView);
nameOfDay = itemView.findViewById(R.id.nameOfDay);
dateOfRoza = itemView.findViewById(R.id.dateOfRoza);
iftorlikTime = itemView.findViewById(R.id.iftorlikTime);
saharlikTime = itemView.findViewById(R.id.saharlikTime);
}
}
}
I found several answers on this topic and tried them but I didn’t succeed help please

Answer 1

I think the error you are facing is due to the below line code
Adapter adapter1 = new Adapter(getActivity(), ramazonAdapters);
adapter.notifyDataSetChanged();
recyclerView.setAdapter(adapter1);
in the above block of code you are trying to notify an adapter before setting the adapter to recyclerview