RecyclerView with Retrofit2 - constructor

Question

I try to do recyclerView with retrofit2, but I do in my code: recyclerView Adapter Constructor and I get a error in my MainActivity part of this line -
"(flowersList, this)": I get error: List anonymous retrofit2.Callback
RecyclerViewFlowersAdapter recyclerViewAdapter = new RecyclerViewFlowersAdapter(flowersList, this);
my code my MainActivity is:
try {
APIService service = ApiClient.getRetrofit().create(APIService.class);
retrofit2.Call<List<Flower>> call = service.getFlowerData();
call.enqueue(new Callback<List<Flower>>() {
#Override
public void onResponse(retrofit2.Call<List<Flower>> call, Response<List<Flower>> response) {
List<Flower> flowersList = response.body();
mLinearLayoutManager = new LinearLayoutManager(MainActivity.this);
mRecyclerView = findViewById(R.id.recycler_view);
mRecyclerView.setLayoutManager(mLinearLayoutManager);
RecyclerViewFlowersAdapter recyclerViewAdapter = new RecyclerViewFlowersAdapter(flowersList, this);
mRecyclerView.setAdapter(recyclerViewAdapter);
}
and the code in RecyclerViewFlowersAdapter is:
public class RecyclerViewFlowersAdapter extends RecyclerView.Adapter<RecyclerViewHolder> {
private List<Flower> mFlowers;
private Context mContext;
public RecyclerViewFlowersAdapter(List<Flower> flowers, Context context) {
mContext = context;
mFlowers = flowers;
}
#Override
public RecyclerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.flower_item_card, null);
RecyclerViewHolder recyclerViewHolder = new RecyclerViewHolder(view);
return recyclerViewHolder;
}
#Override
public void onBindViewHolder(RecyclerViewHolder holder, int position) {
holder.mTextViewTitle.setText(mFlowers.get(position).getName());
Picasso.with(mContext)
.load(mFlowers.get(position).getPhoto()).into(holder.mImageViewFlower);
}
#Override
public int getItemCount() {
return mFlowers.size();
}
}
and my code in RecyclerViewHolder is:
public class RecyclerViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public TextView mTextViewTitle;
public ImageView mImageViewFlower;
public RecyclerViewHolder(View itemView){
super(itemView);
itemView.setOnClickListener(this);
mTextViewTitle = itemView.findViewById(R.id.title);
mImageViewFlower = itemView.findViewById(R.id.imageViewFlower);
}
#Override
public void onClick(View v) {
}
}
I try to do alot of thing but is still error.
thanks for help :)

Answer 1

You are probably using a wrong context, try using MainActivity.this instead of this. Change this
RecyclerViewFlowersAdapter recyclerViewAdapter = new RecyclerViewFlowersAdapter(flowersList, this);
to this
RecyclerViewFlowersAdapter recyclerViewAdapter = new RecyclerViewFlowersAdapter(flowersList, MainActivity.this);