改造を使用してjson配列を渡す

Question

私はアンドロイドとretrofitを初めて使っています。私はjson配列を解析する際に多くの問題に直面しています。私はlogcatでjson応答を出力できます。そのうまくいっている。私はちょうど私のデバイス上の画像とデータをカードビューで表示したいだけです。私はこれ以上のデン週のためにこれで苦労しています。私を助けてください。私のコードを助けてください。私はあきらめたいとは思わない。

POJOクラス：

public class DetailData { 
    public String image; 
    public String pname; 
    public String pprice; 
    public String pdescr; 

    public String getPdescr() { 
     return pdescr; 
    } 

    public void setPdescr(String pdescr) { 
     this.pdescr = pdescr; 
    } 

    public String getPprice() { 
     return pprice; 
    } 

    public void setPprice(String pprice) { 
     this.pprice = pprice; 
    } 

    public String getPname() { 
     return pname; 
    } 

    public void setPname(String pname) { 
     this.pname = pname; 
    } 

    public String getImage() { 
     return image; 
    } 

    public void setImage(String image) { 
     this.image = image; 
    } 
} 

アダプタクラス：

public class DetailsAdapter extends RecyclerView.Adapter<DetailsAdapter.usersViewHolder> { 

    private ArrayList<DetailData> itemList; 
    private Context context1; 
    onclickListener mOnclickListener; 

    public DetailsAdapter(Context context, ArrayList<DetailData> itemList) { 
     this.itemList = itemList; 
     this.context1 = context; 
    } 

    public void updatevalues(ArrayList<DetailData> newlist) { 
     this.itemList = newlist; 
     notifyDataSetChanged(); 

    } 


    public class usersViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener { 
     @Bind(R.id.description) 
     TextView pdescr; 

     @Bind(R.id.image) 
     ImageView image; 

     @Bind(R.id.pprice) 
     TextView pprice; 

     @Bind(R.id.parent) 
     RelativeLayout parent; 

     public usersViewHolder(View itemView) { 
      super(itemView); 
      ButterKnife.bind(this, itemView); 
      parent.setOnClickListener(this); 
     } 

     @Override 
     public void onClick(View v) { 
      switch (v.getId()) { 
       case R.id.parent: 
        mOnclickListener.onCategoryClick(itemView, getAdapterPosition()); 
        break; 


       default: 
        break; 
      } 
     } 
    } 


    @Override 
    public DetailsAdapter.usersViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
     View layoutView = LayoutInflater.from(parent.getContext()).inflate(R.layout.cat_detaillist, null); 
     DetailsAdapter.usersViewHolder viewHolder = new DetailsAdapter.usersViewHolder(layoutView); 
     return viewHolder; 
    } 

    @Override 
    public void onBindViewHolder(usersViewHolder holder, int position) { 
     DetailData current = itemList.get(position); 
     holder.pdescr.setText(current.getPdescr()); 
     holder.pprice.setText(current.getPprice()); 
     // holder.pdescr.setText(current.getPdescr()); 
    } 


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


    public interface onclickListener { 
     void onCategoryClick(View v, int position); 
    } 


    public void setOnItemClickListener(final onclickListener mItemClickListener) { 
     this.mOnclickListener = mItemClickListener; 
    } 
} 

Activityクラス：

public class Test extends AppCompatActivity { 
    Call<ResponseBody> call; 
    DetailsAdapter rcAdapter; 
    RecyclerView recyclerView; 
    ArrayList<DetailData> adapterList = new ArrayList<>(); 
    LinearLayoutManager linearLayoutManager; 


    private static final String JSON_BED = "http://localhost/shree_decor/jsonfetch.php"; 

    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.cat_detail); 
     Intent i = getIntent(); 
     int catid = i.getExtras().getInt("catid"); 
     recyclerView = (RecyclerView) findViewById(R.id.rv); 
     rcAdapter = new DetailsAdapter(Test.this, adapterList); 
     linearLayoutManager = new LinearLayoutManager(Test.this); 
     linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL); 
     recyclerView.setLayoutManager(linearLayoutManager); 
     recyclerView.setAdapter(rcAdapter); 
     recyclerView.setHasFixedSize(true); 

     API service = ServiceGenerator.createService(API.class); 
     call = service.getCategoriesData(String.valueOf(catid)); 

     call.enqueue(new Callback<ResponseBody>() { 
      @Override 
      public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) { 
       String urlResponse = Utils.convertTypedBodyToString(response); 
       JSONObject json = null; 
       JSONArray jsonResponse = null; 
       Log.i("CatResponse - ", "" + urlResponse); 
       //Log.i("CatResponse - ", "" + json); 




       //CHECK THIS! 
       try { 
        json = new JSONObject(urlResponse); 
        //coverting arraylist to array 
        String[] stringArray = adapterList.toArray(new String[0]); 
        for (int i = 0; i < stringArray.length; i++) { 
         DetailData current = new DetailData(); 
         current.setPname(stringArray[i]); 
         // current.setImage(img[i]); 
         adapterList.add(current); 
        } 

        //return adapterList; 
        } catch (JSONException e) { 
        e.printStackTrace(); 
       } 

       try { 
        jsonResponse = json.getJSONArray("result"); 
        Log.i("Array", "" + jsonResponse); 
       } catch (JSONException e) { 
        e.printStackTrace(); 
       } 

       //PASS THE JSON ARRAY ONLY 
       ArrayList<DetailData> itemList = null; 
       Context context1 = null; 
       //Log.i("CatResponse1 - ", "" + json); 

       adapterList = getData(jsonResponse); 
       DetailsAdapter da = new DetailsAdapter(context1, itemList); 
       da.updatevalues(adapterList); 


      } 

      @Override 
      public void onFailure(Call<ResponseBody> call, Throwable t) { 
       Log.i("RetroError - ", "" + t.getMessage()); 
      } 
     }); 


    } 


    public ArrayList<DetailData> getData(JSONArray details) { 
     ArrayList<DetailData> data = new ArrayList<>(); 

     for (int i = 0; i < details.length(); i++) { 
      DetailData current = new DetailData(); 
      try { 
       current.setImage(details.getJSONObject(i).getString("image")); 
       current.setPdescr(details.getJSONObject(i).getString("pdescr")); 
       current.setPname(details.getJSONObject(i).getString("pname")); 
       current.setPprice(details.getJSONObject(i).getString("pprice")); 
       data.add(current); 
      } catch (JSONException e) { 
       e.printStackTrace(); 
      } 
     } 
     return data; 
    } 
} 

のXMLレイアウト

<include 
     android:id="@+id/toolbar" 
     layout="@layout/toolbar" /> 

    <android.support.v7.widget.RecyclerView 
     android:id="@+id/rv" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent"> 

    </android.support.v7.widget.RecyclerView> 


</LinearLayout> 


<android.support.v7.widget.CardView 
    xmlns:card_view="http://schemas.android.com/apk/res-auto" 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_marginTop="5dp" 
    android:layout_marginLeft="5dp" 
    android:layout_marginRight="5dp" 
    card_view:cardCornerRadius="5dp"> 
    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:layout_margin="10dp" 
     android:orientation="vertical"> 
     <ImageView 
      android:id="@+id/image" 
      android:layout_height="match_parent" 
      android:layout_width="wrap_content"></ImageView> 
     <TextView 
      android:id="@+id/description" 
      android:layout_marginTop="10dp" 
      android:layout_marginBottom="10dp" 
      android:textSize="18dp" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:textStyle="bold" /> 
     <TextView 
      android:id="@+id/pprice" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" /> 


    </LinearLayout> 
</android.support.v7.widget.CardView> 

応答

{ 
    "result": [{ 
     "image": null, 
     "pname": "Barshi Bed", 
     "pprice": "20000", 
     "pdescr": "Barshi bed Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum." 
    }, { 
     "image": null, 
     "pname": "King bed nexa one", 
     "pprice": "15000", 
     "pdescr": "King bed nexa one Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum." 
    }, { 
     "image": null, 
     "pname": "Royal Sofa", 
     "pprice": "25000", 
     "pdescr": "Royal Sofa Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum." 
    }] 
} 

私を助けてください！

Answer 1

まずMyResponse.java

public class MyResponse implements Serializable { 

    @Expose @SerializedName("result") 
    private ArrayList<DetailData> listData; 


    public ArrayList<DetailData> getListData() { 
    return listData; 
    } 

    public void setListData(ArrayList<DetailData> listData) { 
    this.listData = listData; 
    } 
} 

と呼ばれるモデルクラスを作成し、あなたのインターフェイス上でのコールgetCategoriesDataタイプに変更Api.java：あなたのActivity.classの

@FormUrlEncoded 
@POST("") 
Call<MyResponse> getCategoriesData(@Field("catid") String catid); 

最後に：

を

1. コールタイプを変更します。

   Call<MyResponse> call; 
   

2. 変更enque：

   call.enqueue(new Callback<MyResponse>() { 
       @Override 
       public void onResponse(Call<MyResponse> call, Response<MyResponse> response) { 
        if (response.isSuccessful()) { 
         String strBody = response.body().toString(); 
         Log.i("---- NEWS_REST_SERVICE response : " + strBody); 
         MyResponse responsePojo = response.body(); 
         adapterList = responsePojo.getListData(); 
   
         rcAdapter = new DetailsAdapter(Test.this, adapterList); 
   
         rcAdapter.notifyDataSetChanged(); 
        } else { 
         Log.i("---- NEWS_REST_SERVICE error response"); 
         int sc = response.code(); 
         switch (sc) { 
   
         } 
        } 
       } 
   
       @Override 
       public void onFailure(Call<MyResponse> call, Throwable t) { 
        Log.i("RetroError - ", "" + t.getMessage()); 
       } 
   });