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沒有連接適配器;跳過佈局recyclerview錯誤

2016-08-12 76 views
-2

沒有附加適配器;跳過佈局沒有連接適配器;跳過佈局recyclerview錯誤

I M從URL獲取JSON數據到recyclerview 我已經烤響應我拿來響應正確，但不能夠設置。

javaclasses低於

package ""; 

public class MainRecyclerView extends ActionBarActivity { 
    RecyclerView recyclerView; 
    LinearLayout linearLayout; 
    RecyclerViewListview adapter; 
    List<Data> dataList = new ArrayList<Data>(); 
    public String URL = "http://toscanyacademy.com/blog/mp.php"; 
    private RecyclerView.LayoutManager layoutManager; 

    @Override 
    protected void onCreate(@Nullable Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main_recycler); 

     recyclerView = (RecyclerView) findViewById(R.id.recycler_view); 
     recyclerView.setHasFixedSize(true); 
     recyclerView.setItemAnimator(new DefaultItemAnimator()); 

     recyclerView.setLayoutManager(new LinearLayoutManager(this)); 
     adapter = new RecyclerViewListview(this, dataList); 

     recyclerView.setAdapter(adapter); 
     RequestJsonArray(); 

    } 

    public void getData(JSONArray jsonArray) { 
     for (int i = 0; i < jsonArray.length(); i++) { 
      Data data = new Data(); 
      JSONObject jsonObject = null; 
      try { 
       jsonObject = jsonArray.getJSONObject(i); 
       data.setSong_name(jsonObject.getString("song_name")); 
       data.setSong_year(jsonObject.getInt("song_id")); 
       data.setSong_author(jsonObject.getString("artist_name")); 
       recyclerView.setAdapter(adapter); 

      } catch (JSONException e) { 
       e.printStackTrace(); 
      } 
      dataList.add(data); 
      Toast.makeText(MainRecyclerView.this, dataList.toString(), Toast.LENGTH_SHORT).show(); 


     } 


     adapter.notifyDataSetChanged(); 


    } 

    public void RequestJsonArray() { 

     JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, URL, null, new Response.Listener<JSONArray>() { 
      @Override 
      public void onResponse(JSONArray response) { 
       // String songname = response.getString(); 
       getData(response); 
       Toast.makeText(MainRecyclerView.this, response.toString(), Toast.LENGTH_SHORT).show(); 


      } 
     }, new Response.ErrorListener() { 
      @Override 
      public void onErrorResponse(VolleyError error) { 
       Toast.makeText(MainRecyclerView.this, error.toString(), Toast.LENGTH_SHORT).show(); 

      } 
     }); 
     RequestQueue requestQueue = Volley.newRequestQueue(this); 
     requestQueue.add(jsonArrayRequest); 
    } 

}

第二類

package""; 

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

    private Context context; 
    private LayoutInflater layoutInflater; 
    List<Data> dataList; 

    public RecyclerViewListview(Context context, List<Data> dataList) { 
     this.context = context; 
     this.dataList = dataList; 

    } 

    @Override 
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 

     // View view = layoutInflater.inflate(R.layout.recycle_list_raw, parent, false); 
     View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.recycle_list_raw, null); 
     MyHolder holder = new MyHolder(v); 
     return holder; 
    } 

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

     MyHolder myHolder = (MyHolder) parent; 
     myHolder.song_name.setText(dataList.get(position).getSong_name()); 
     myHolder.song_year.setText(dataList.get(position).getSong_year()); 
     myHolder.song_year.setText(dataList.get(position).getSong_author()); 
    } 

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

    class MyHolder extends RecyclerView.ViewHolder { 

     public TextView song_name; 
     public TextView song_year; 
     public TextView song_author; 

     // create constructor to get widget reference 
     public MyHolder(View itemView) { 
      super(itemView); 
      song_name = (TextView) itemView.findViewById(R.id.stitle); 
      song_year = (TextView) itemView.findViewById(R.id.s_year); 
      song_author = (TextView) itemView.findViewById(R.id.sauthor); 

     } 

    } 
}

第三類 公共類數據{

public String song_name; 
    public int song_year; 
    public String song_author; 

    public Data() { 
    } 

    /*public Data(String song_name, String song_year, String song_author) { 
     this.song_name = song_name; 
     this.song_year = song_year; 
     this.song_author = song_author; 
    }*/ 


    public String getSong_author() { 
     return song_author; 
    } 

    public void setSong_author(String song_author) { 
     this.song_author = song_author; 
    } 

    public String getSong_name() { 
     return song_name; 
    } 

    public void setSong_name(String song_name) { 
     this.song_name = song_name; 
    } 

    public int getSong_year() { 
     return song_year; 
    } 

    public void setSong_year(int song_year) { 
     this.song_year = song_year; 
    }

}

Logcate

08-12 19:16:59.262 29356-29370/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.util.ArrayMap', referenced from method com.android.tools.fd.runtime.Restarter.getActivities 
08-12 19:24:18.958 2054-2054/com.example.altaf.shopper E/InstantRun: Could not find slices in APK; aborting. 
08-12 19:24:18.962 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.util.ArrayMap', referenced from method com.android.tools.fd.runtime.MonkeyPatcher.monkeyPatchExistingResources 
08-12 19:24:18.962 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.util.ArrayMap', referenced from method com.android.tools.fd.runtime.MonkeyPatcher.pruneResourceCache 
08-12 19:24:18.970 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.example.altaf.shopper.volley.MainRecyclerView.access$super 
08-12 19:24:18.970 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.example.altaf.shopper.volley.MainRecyclerView.access$super 
08-12 19:24:18.970 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.media.session.MediaController', referenced from method com.example.altaf.shopper.volley.MainRecyclerView.access$super 
08-12 19:24:18.970 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.widget.Toolbar', referenced from method com.example.altaf.shopper.volley.MainRecyclerView.access$super 
08-12 19:24:18.970 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.app.ActivityManager$TaskDescription', referenced from method com.example.altaf.shopper.volley.MainRecyclerView.access$super 
08-12 19:24:18.970 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method com.example.altaf.shopper.volley.MainRecyclerView.access$super 
08-12 19:24:18.970 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.example.altaf.shopper.volley.MainRecyclerView.access$super 
08-12 19:24:18.970 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.transition.TransitionManager', referenced from method com.example.altaf.shopper.volley.MainRecyclerView.access$super 
08-12 19:24:18.974 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method com.example.altaf.shopper.volley.MainRecyclerView.access$super 
08-12 19:24:18.982 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.app.assist.AssistContent', referenced from method com.example.altaf.shopper.volley.MainRecyclerView.access$super 
08-12 19:24:18.986 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.view.SearchEvent', referenced from method com.example.altaf.shopper.volley.MainRecyclerView.access$super 
08-12 19:24:18.986 2054-2054/com.example.altaf.shopper E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.example.altaf.shopper.volley.MainRecyclerView.access$super 
08-12 19:24:19.982 2054-2054/com.example.altaf.shopper E/AndroidRuntime: FATAL EXCEPTION: main 
                     android.content.res.Resources$NotFoundException: String resource ID #0x7c6 
                      at android.content.res.Resources.getText(Resources.java:230) 
                      at android.support.v7.widget.ResourcesWrapper.getText(ResourcesWrapper.java:52) 
                      at android.widget.TextView.setText(TextView.java:3769) 
                      at com.example.altaf.shopper.volley.RecyclerViewListview.onBindViewHolder(RecyclerViewListview.java:46) 
                      at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:5471) 
                      at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:5504) 
                      at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4741) 
                      at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4617) 
                      at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1994) 
                      at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1390) 
                      at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1353) 
                      at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:574) 
                      at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3028) 
                      at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2906) 
                      at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3283) 
                      at android.view.View.layout(View.java:14008) 
                      at android.view.ViewGroup.layout(ViewGroup.java:4373) 
                      at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1021) 
                      at android.view.View.layout(View.java:14008) 
                      at android.view.ViewGroup.layout(ViewGroup.java:4373) 
                      at android.widget.FrameLayout.onLayout(FrameLayout.java:448) 
                      at android.view.View.layout(View.java:14008) 
                      at android.view.ViewGroup.layout(ViewGroup.java:4373) 
                      at android.support.v7.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:435) 
                      at android.view.View.layout(View.java:14008) 
                      at android.view.ViewGroup.layout(ViewGroup.java:4373) 
                      at android.widget.FrameLayout.onLayout(FrameLayout.java:448) 
                      at android.view.View.layout(View.java:14008) 
                      at android.view.ViewGroup.layout(ViewGroup.java:4373) 
                      at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1663) 
                      at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1521) 
                      at android.widget.LinearLayout.onLayout(LinearLayout.java:1434) 
                      at android.view.View.layout(View.java:14008) 
                      at android.view.ViewGroup.layout(ViewGroup.java:4373) 
                      at android.widget.FrameLayout.onLayout(FrameLayout.java:448) 
                      at android.view.View.layout(View.java:14008) 
                      at android.view.ViewGroup.layout(ViewGroup.java:4373) 
                      at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1892) 
                      at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1711) 
                      at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:989) 
                      at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4351) 
                      at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749) 
                      at android.view.Choreographer.doCallbacks(Choreographer.java:562) 
                      at android.view.Choreographer.doFrame(Choreographer.java:532) 
                      at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735) 
                      at android.os.Handler.handleCallback(Handler.java:725) 
                      at android.os.Handler.dispatchMessage(Handler.java:92) 
                      at android.os.Looper.loop(Looper.java:137) 
                      at android.app.ActivityThread.main(ActivityThread.java:5041) 
                      at java.lang.reflect.Method.invokeNative(Native Method) 
                      at java.lang.reflect.Method.invoke(Method.java:511) 
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
                      at dalvik.system.NativeStart.main(Native Method)

來源

2016-08-12 androidpie

回答

0

存在一個錯誤MainRecyclerView的onCreate()

recyclerView = (RecyclerView) findViewById(R.id.recycler_view); 

dataList = new ArrayList<>();  // your dataList is empty here... 
recyclerView.setAdapter(adapter); // your Adapter is null here. (not initialized) 
RequestJsonArray();

你需要調用方法，將它傳遞給前準備您的DataList適配器。 請在正確的位置調用方法。

@Override 
protected void onCreate(@Nullable Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main_recycler); 

    recyclerView = (RecyclerView) findViewById(R.id.recycler_view);   
    recyclerView.setHasFixedSize(true); 
    recyclerView.setItemAnimator(new DefaultItemAnimator()); 
    recyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext())); 

    dataList = new ArrayList<>(); 

    RequestJsonArray(); 

    adapter = new RecyclerViewListview(this, dataList);   
    recyclerView.setAdapter(adapter); 
}

現在你getData()評論了內部線dataList.add(data);後，再用乾淨的項目，然後重建運行。

現在，您已經編輯了您的問題：請在RecyclerAdapter的onBindViewHolder()中嘗試。

myHolder.song_name.setText("" + dataList.get(position).getSong_name()); 
myHolder.song_year.setText("" + dataList.get(position).getSong_year()); 
myHolder.song_year.setText("" + dataList.get(position).getSong_author());

來源

2016-08-12 17:36:55

+0

沒有任何變化 – androidpie

+0

沒有在logcate .....只有這一行是有**沒有適配器連接;跳過佈局** – androidpie

+0

我已經做出了改變，你可以看到上面，但現在我得到錯誤，我已經發布logcate ..和在logcate我點擊突出顯示的鏈接，所以光標繼續** myHolder.song_year.setText（dataList.get（position） .getSong_year（））; **這一行...我只是改變數據類的數據類型，因爲歌曲ID是整數..現在告訴我，我做錯了什麼？ – androidpie

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