Question

我无法在我的Recycler视图中获取数据。我对android很新，并尝试在tablayout中实现此循环器视图但没有获取任何数据。有三个选项卡，并尝试使用一个选项卡的此代码。请帮助我与此同在。谢谢。

我的代码如下。

我为recyler视图创建了两个xml文件，另一个用于自定义行。下面是我的活动代码。

我的片段活动

public class HomeFragment extends Fragment {
private RecyclerView recyclerView;
private vivzadapter adapter;
    public HomeFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment

        View layout = inflater.inflate(R.layout.fragment_home, container, false);
        recyclerView= (RecyclerView)layout.findViewById(R.id.lis);
        adapter = new vivzadapter(getActivity(), getData());
        recyclerView.setAdapter(adapter);
        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
        return layout;
    }
public static List<Information> getData(){
    List<Information> data =new ArrayList<>();
    int icons=(R.drawable.icon);
    String[] titles = {"Ashish", "shivam", "yogesh", "ravi"};
    for (int i=0;i<titles.length;i++) {
        Information information = new Information();
        information.iconId=icons;
        information.title=titles[i];
        data.add(information);
    }
    return data;
}
}

我的适配器活动 -

public class vivzadapter extends RecyclerView.Adapter<vivzadapter.MyViewHolder>{
    private final LayoutInflater inflater;
List<Information> data= Collections.emptyList();
    public vivzadapter(Context context,List<Information> data){
       inflater =LayoutInflater.from(context);
       this.data = data;
   }
    @Override
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

    View view=   inflater.inflate(R.layout.customrow, parent,false);
    MyViewHolder holder= new MyViewHolder(view);
        return holder ;
    }

    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {
        Information current = data.get(position);
holder.title.setText(current.title);
holder.icon.setImageResource(current.iconId);
    }

    @Override
    public int getItemCount() {
        return 0;
    }
    class MyViewHolder extends RecyclerView.ViewHolder{
TextView title;
ImageView icon;
        public MyViewHolder(View itemView) {
            super(itemView);
            title =(TextView) itemView.findViewById(R.id.textvw);
            icon =(ImageView) itemView.findViewById(R.id.imageView);
        }
    }
}

Answer 1

更改

@Override
public int getItemCount() {
    return 0;
}

为：

@Override
public int getItemCount() {
    return data.size();
}

没有在我的回收站视图中获取数据

1 个答案: