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webserviceからのアイテムのリストを表示するためにrecyclerviewを実装しました。要素を表示するには、アダプタを使用してrecyclerviewに入力される1行を使用しました。今私は単一の行のボタンへの参照を取得したいが、私はそれを行うことができません。私はgetAdapterPosition（）を使用しようとしましたが、これは私が行のボタンの代わりにアクセスしようとしている行の位置を返します。RecyclerViewの要素にアクセスできない
アダプタ：
public class FruitsandVegAdapter extends RecyclerView.Adapter<FruitsandVegAdapter.Holder>{
private List<FruitsandVEGmodel> mFF;
LinearLayout buttons;
CustomItemClickListener listener;
public FruitsandVegAdapter(CustomItemClickListener listener){
this.listener=listener;
mFF=new ArrayList<>();
}
@Override
public Holder onCreateViewHolder(ViewGroup parent, int viewType) {
View row= LayoutInflater.from(parent.getContext()).inflate(R.layout.ffsingle_item,parent,false);
final Holder mViewholder=new Holder(row);
/* row.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.onItemClick(v,mViewholder.getLayoutPosition());
}
});*/
//subtract.setVisibility(View.GONE);
//buttons=row.findViewById(R.id.buttons);
// buttons.setOnItemClickListener(){};
/*addButton.setOnItemClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
addButton.setVisibility(SurfaceView.GONE);
quantity.setVisibility(SurfaceView.VISIBLE);
}
});*/
return mViewholder;
}
@Override
public void onBindViewHolder(Holder holder, final int position) {
FruitsandVEGmodel currentFF=mFF.get(position);
holder.FFname.setText(currentFF.getProd_name());
holder.FFmrp.setText("MRP:"+Double.toString(currentFF.getV_Mrp()));
holder.FFrate.setText("RATE:"+Double.toString(currentFF.getV_Rate()));
holder.FFmrp.setPaintFlags(holder.FFmrp.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
String IMG_URl="http://www.myfiscus.in/images/"+currentFF.getDept()+currentFF.getV_Smallimage();
Picasso.with(holder.itemView.getContext()).load(IMG_URl).into(holder.FFphoto);
/* holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Log.d("position",position+"");
}
});*/
}
@Override
public int getItemCount() {
return mFF.size();
}
public void addFF(FruitsandVEGmodel fruitsandVEGmodel) {
mFF.add(fruitsandVEGmodel);
notifyDataSetChanged();
}
public class Holder extends RecyclerView.ViewHolder {
private ImageView FFphoto;
private TextView FFname;
private TextView FFmrp;
private TextView FFrate;
Button addButton;
public Holder(final View itemView) {
super(itemView);
FFphoto=itemView.findViewById(R.id.FFphoto);
FFname=itemView.findViewById(R.id.FFname);
FFmrp=itemView.findViewById(R.id.FFmrp);
FFrate=itemView.findViewById(R.id.FFrate);
addButton= itemView.findViewById(R.id.addButton);
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(getAdapterPosition()!=RecyclerView.NO_POSITION) {
listener.onItemClick(v, getLayoutPosition());
}
Log.d("Position : ",getAdapterPosition()+"");
}
});
}
}
}
活動：
public class FruitsVeg extends AppCompatActivity {
private RecyclerView recyclerView;
private RestManager mRestManager;
private FruitsandVegAdapter mfruitsandVegAdapter;
int minteger;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fruits_veg);
configview();
mRestManager=new RestManager();
Call<List<FruitsandVEGmodel>> listCall =mRestManager.getmFFapi().getAllFruitsandvegs();
// Set up progress before call
final ProgressDialog progressDoalog;
progressDoalog = new ProgressDialog(FruitsVeg.this);
progressDoalog.setMax(100);
progressDoalog.setMessage("Its loading....");
progressDoalog.setTitle("ProgressDialog bar example");
progressDoalog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
// show it
progressDoalog.show();
listCall.enqueue(new Callback<List<FruitsandVEGmodel>>() {
@Override
public void onResponse(Call<List<FruitsandVEGmodel>> call, Response<List<FruitsandVEGmodel>> response) {
if(response.isSuccessful()){
List<FruitsandVEGmodel> ffList =response.body();
for(int i=0;i< ffList.size();i++)
{
FruitsandVEGmodel fruitsandVEGmodel=ffList.get(i);
mfruitsandVegAdapter.addFF(fruitsandVEGmodel);
}
}
progressDoalog.dismiss();
}
@Override
public void onFailure(Call<List<FruitsandVEGmodel>> call, Throwable t) {
progressDoalog.dismiss();
}
});
}
private void configview() {
recyclerView=findViewById(R.id.recyclerView);
recyclerView.setHasFixedSize(true);
recyclerView.setRecycledViewPool(new RecyclerView.RecycledViewPool());
recyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext(),LinearLayoutManager.VERTICAL,false));
mfruitsandVegAdapter=new FruitsandVegAdapter(new CustomItemClickListener() {
@Override
public void onItemClick(View v, int position) {
Log.d("TAG", "clicked position:" + position);
final Button addBUtton=v.findViewById(R.id.addButton);
final LinearLayout quantity=v.findViewById(R.id.quantity);
//addBUtton.setText("haha");
// final Button subtract=v.findViewById(R.id.subtract);
//quantity.setVisibility(View.GONE);
/* addBUtton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
addBUtton.setVisibility(View.GONE);
quantity.setVisibility(View.VISIBLE);
}
});*/
}
});
recyclerView.setAdapter(mfruitsandVegAdapter);
}