recyclerviewをgridviewとして作成しますか？

Question

私はリストとしてこのrecyclerviewを持っており、グリッドビューに変更する必要があります。どのようにそれを行うことができますか？私はgridlayoutmangerを試みたが、それは動作していない。私はそれをどのように行うことができます（およびエラーを避けるため、あなたの時間に感謝

これは断片である：？

public class ListViewActivityFragment extends Fragment { 
    List<AppShowModule> appShowModule; 
    RecyclerView AppRecyclerView; 
    List<AppShowModule> GetDataAdapter1; 

    private GridLayoutManager lLayout; 

    RecyclerView.LayoutManager AppRecyclerViewlayoutManager; 
    RecyclerView.Adapter AppRecyclerViewadapter; 
    String jsonUrl = "https://itunes.apple.com/jo/rss/topfreeapplications/limit=50/json"; 
    TextView text; 
    Context context; 
    RequestQueue requestQueue; 
    public ListViewActivityFragment() { 
    } 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) { 
    return inflater.inflate(R.layout.fragment_list_view, container, false); 
    } 
    @Override 
    public void onActivityCreated(@Nullable Bundle savedInstanceState) { 
    super.onActivityCreated(savedInstanceState); 
    appShowModule = new ArrayList<>(); 
    AppRecyclerView = (RecyclerView) getView().findViewById(R.id.AppRecyclerView); 
    AppRecyclerView.setHasFixedSize(true); 
    lLayout = new GridLayoutManager(context, 4); 
    AppRecyclerView.setLayoutManager(lLayout); 
    GetDataAdapter1 = new ArrayList<>(); 
    JsonAppShowData(); 
    } 

    public void JsonAppShowData() { 
    final JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(jsonUrl, new Response.Listener<JSONObject>() { 
     @Override 
     public void onResponse(JSONObject response) { 
      try { 
       JSONArray jsonArray = response.getJSONObject("feed").getJSONArray("entry"); 
       for (int i = 0; i < jsonArray.length(); i++) { 
        JSONObject json1 = jsonArray.getJSONObject(i).getJSONObject("im:name"); 
        AppShowModule appShowModule111 = new AppShowModule(); 
        String name = response.getJSONObject("feed").getJSONArray("entry").getJSONObject(i).getJSONObject("im:name").getString("label").toString(); 
        String image = response.getJSONObject("feed").getJSONArray("entry").getJSONObject(i).getJSONArray("im:image").getJSONObject(0).getString("label").toString(); 
        appShowModule111.setAppName((name)); 
        appShowModule111.setAppImageUrl(image); 
        GetDataAdapter1.add(appShowModule111); 
       } 
       AppRecyclerViewadapter = new RecyclerViewAdapter(GetDataAdapter1,getContext()); 
       AppRecyclerView.setAdapter(AppRecyclerViewadapter); 
      } catch (JSONException e) { 
       e.printStackTrace(); 
      }} 

    }, new Response.ErrorListener() { 
     @Override 
     public void onErrorResponse(VolleyError error) { 
      Log.e("LOG", error.toString()); 
     } 
    }); 

    requestQueue = Volley.newRequestQueue(getContext()); 
    requestQueue.add(jsonObjectRequest); 

    AppRecyclerView.setLayoutManager(new LinearLayoutManager(context)); 

    } 
} 

Answer 1

は初め自体にすべてのあなたの意見やアダプタを初期化

onActivityCreated()

で。

@Override 
public void onActivityCreated(@Nullable Bundle savedInstanceState) { 
    super.onActivityCreated(savedInstanceState); 
    appShowModule = new ArrayList<>(); 
    AppRecyclerView = (RecyclerView) getView().findViewById(R.id.AppRecyclerView); 
    AppRecyclerView.setHasFixedSize(true); 
    lLayout = new GridLayoutManager(context, 4); 
    AppRecyclerView.setLayoutManager(lLayout); 
    GetDataAdapter1 = new ArrayList<>(); 
    AppRecyclerViewadapter = new RecyclerViewAdapter(GetDataAdapter1,getContext()); 
    AppRecyclerView.setAdapter(AppRecyclerViewadapter); 
    JsonAppShowData(); 
} 

および

public void JsonAppShowData() { 
    final JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(jsonUrl, new Response.Listener<JSONObject>() { 
     @Override 
     public void onResponse(JSONObject response) { 
      try { 
       JSONArray jsonArray = response.getJSONObject("feed").getJSONArray("entry"); 
       for (int i = 0; i < jsonArray.length(); i++) { 
        JSONObject json1 = jsonArray.getJSONObject(i).getJSONObject("im:name"); 
        AppShowModule appShowModule111 = new AppShowModule(); 
        String name = response.getJSONObject("feed").getJSONArray("entry").getJSONObject(i).getJSONObject("im:name").getString("label").toString(); 
        String image = response.getJSONObject("feed").getJSONArray("entry").getJSONObject(i).getJSONArray("im:image").getJSONObject(0).getString("label").toString(); 
        appShowModule111.setAppName((name)); 
        appShowModule111.setAppImageUrl(image); 
        GetDataAdapter1.add(appShowModule111); 
       } 

      } catch (JSONException e) { 
       e.printStackTrace(); 
      }} 

    }, new Response.ErrorListener() { 
     @Override 
     public void onErrorResponse(VolleyError error) { 
      Log.e("LOG", error.toString()); 
     } 
    }); 

    requestQueue = Volley.newRequestQueue(getContext()); 
    requestQueue.add(jsonObjectRequest); 

    // Why are you again setting layout manager. Its already done in onActivityCreated() 
    //AppRecyclerView.setLayoutManager(new LinearLayoutManager(context)); 
    // Just call adapter's notifyDatasetChanged() 
    AppRecyclerViewadapter.notifyDatasetChanged(); 
}