Question

输出仅显示列表的最后一项即， 16：15-16：30 16：15-16：30 它应该显示在哪里 16：00-16：15 16：15-16：30

json输出

 {
    "slots": [{
        "1": {
            "slot": "16:00-16:15",
            "value": "1",
            "ar_index": "1"
        },
        "2": {
            "slot": "16:15-16:30",
            "value": "2",
            "ar_index": "2"
        }
    }]
 }

这是用于获取json输出并使用适配器在recyclerview中设置它的postexecute代码我获取这两个插槽并显示在recyclerview中，但仅在列表的最后一次显示。无法理解代码的问题

@Override
        protected void onPostExecute(String result) {

            //this method will be running on UI thread

            pdLoading.dismiss();
            List<DataBook> data=new ArrayList<>();

            pdLoading.dismiss();
            try {
                    JSONObject jsonObject = new JSONObject(result);
                    System.out.println("jsonObject_1 = "+jsonObject);

                    if(jsonObject != null){
                        JSONArray jsonArray = jsonObject.getJSONArray("slots");
                        System.out.println("jsonArray_2 = "+jsonArray);

                        if(jsonArray != null) {
                            for (int i = 0; i < jsonArray.length(); i++) {
                                System.out.println("jsonArray.length() = "+jsonArray.length());
                                System.out.println("i_value = "+i);

                                JSONObject elem = jsonArray.getJSONObject(i);
                                System.out.println("elem = " + elem);

                                for (int j = 1; j <= elem.length(); j++) {
                                    System.out.println("elem.length() = "+elem.length());
                                    System.out.println("j_value = "+j);

                                    JSONObject elem1 = elem.getJSONObject(String.valueOf(j));
                                    System.out.println("elem1 = " + elem1);
                                    DataBook fishData = new DataBook();

                                    if (elem1 != null) {
                                        fishData.fishName = elem1.getString("slot");
                                        System.out.println("fishData.fishName = " + fishData.fishName);
                                    }
                                    data.add(fishData);
                                }
                            }
                        }
                    }
// Setup and Handover data to recyclerview
                mRVFishPrice = (RecyclerView)findViewById(R.id.rc_slotsList);
                mAdapter = new AdapterFish(BookActivity.this, data);
                mRVFishPrice.setAdapter(mAdapter);
                mRVFishPrice.setLayoutManager(new LinearLayoutManager(BookActivity.this));

            } catch (JSONException e) {
                Toast.makeText(BookActivity.this, e.toString(), Toast.LENGTH_LONG).show();
            }
        }

这是我的Adapter类，我正在设置结果

public class AdapterFish extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

    private Context context;
    private LayoutInflater inflater;
    List<DataBook> data= Collections.emptyList();
    DataBook current;
    int currentPos=0;

    // create constructor to innitilize context and data sent from MainActivity
    public AdapterFish(Context context, List<DataBook> data){
        this.context=context;
        inflater= LayoutInflater.from(context);
        this.data=data;
    }

    // Inflate the layout when viewholder created
    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view=inflater.inflate(R.layout.book_container_fish, parent,false);
        MyHolder holder=new MyHolder(view);
        return holder;
    }

    // Bind data
    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {

        // Get current position of item in recyclerview to bind data and assign values from list
        MyHolder myHolder= (MyHolder) holder;
        current = data.get(position);

        myHolder.textFishName.setText(current.fishName);
        System.out.println("holder_current.fishName"+current.fishName);

    }

    // return total item from List
    @Override
    public int getItemCount() {
        return data.size();
    }

    class MyHolder extends RecyclerView.ViewHolder{

        TextView textFishName;
        ImageView ivFish;
        TextView textSize;
        TextView textType;
        TextView textPrice;

        // create constructor to get widget reference
        public MyHolder(View itemView) {
            super(itemView);
            textFishName= (TextView) itemView.findViewById(R.id.textFishName);
        }

    }

}

Answer 1

public AdapterFish(Context context, List<DataBook> data){
        this.context=context;
        inflater= LayoutInflater.from(context);
        this.data=data;
      system.out.println(""+data.size());
//check how much data that you have got


    } 
@Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {

        // Get current position of item in recyclerview to bind data and 
        assign values from list
        MyHolder myHolder= (MyHolder) holder;
        current = data.get(position-1);

        myHolder.textFishName.setText(current.fishName);
        System.out.println("holder_current.fishName"+current.fishName);

    }

Recyclerview显示错误的数据

1 个答案: