StaggaredGridLayoutManager無法正常工作

Question

我正在嘗試將網格視圖更改爲使用Recyclerview列出並列入網格。當我第一次運行我的應用我很喜歡第一圖像越來越鑑於電網方式現在

當我點擊圖標可從網格轉換視圖以列出我得到它以列表的方式這樣

2.

但現在，如果我再次點擊圖標來改變視圖，將給予適當的輸出

現在的問題是，爲什麼我不能夠獲得視圖在網格的方式在1個截圖提到

oncreateview

gridimg.setOnClickListener(this); 
    llm = new LinearLayoutManager(ProductListActivity.this); 
     rv = (RecyclerView)findViewById(R.id.recycler_viewproduts); 

     rv.setLayoutManager(llm); 

使用VO獲取JSON響應lley和設置適配器

private void makeJsonArrayRequest() { 



     showpDialog(); 

     JsonArrayRequest req = new JsonArrayRequest(url, 
       new Response.Listener<JSONArray>() { 
        @Override 
        public void onResponse(JSONArray response) { 
         Log.d("ress", response.toString()); 
         productlist = new ArrayList<ProductListModel>(); 
         // Parsing json 

         ch_list = new ArrayList<String>(); 
         color_list=new ArrayList<String>(); 

         try {.................... 

            rvAdapter = new RecyclerViewAdapter(ProductListActivity.this,productlist,ch_list); 
          rv.setAdapter(rvAdapter); 

         } catch (JSONException e) { 
          e.printStackTrace(); 
          Toast.makeText(getApplicationContext(), 
            "Error: " + e.getMessage(), 
            Toast.LENGTH_LONG).show(); 
         } 
         hidepDialog(); 

         // notifying list adapter about data changes 
         // so that it renders the list view with updated data 
         //adapter.notifyDataSetChanged(); 
        } 
       }, new Response.ErrorListener() { 
      @Override 
      public void onErrorResponse(VolleyError error) { 
       VolleyLog.d("ErrorVolley", "Error: " + error.getMessage()); 
       Toast.makeText(getApplicationContext(), 
         error.getMessage(), Toast.LENGTH_SHORT).show(); 
       hidepDialog(); 

      } 
     }); 


     MyApplication.getInstance().addToReqQueue(req, "jreq"); 
    } 

的onclick

case R.id.product_grid: 

       Toast.makeText(ProductListActivity.this, "Refresh App", Toast.LENGTH_LONG).show(); 
       isViewWithCatalog = !isViewWithCatalog; 
       supportInvalidateOptionsMenu(); 
       //loading = false; 
       rv.setLayoutManager(isViewWithCatalog ? new LinearLayoutManager(this) : new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL)); 
       rv.setAdapter(rvAdapter); 
       break; 

Answer 1

變化：

gridimg.setOnClickListener(this); 
    llm = new LinearLayoutManager(ProductListActivity.this); 
     rv = (RecyclerView)findViewById(R.id.recycler_viewproduts); 

     rv.setLayoutManager(llm); 

到

gridimg.setOnClickListener(this); 
    llm = new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL); 
     rv = (RecyclerView)findViewById(R.id.recycler_viewproduts); 

    rv.setLayoutManager(llm);