Android : 중간 조각이 표시되지 않습니다.

Question

다른보기 아래에 표시되도록 설정된보기가 3 개 있습니다. 그러나 문제는이보기 (가운데 하나)가 화면에 전혀 나타나지 않는다는 것입니다. 이 목록을 상위보기로 보내는 방법에 대해서는 확실하지 않습니다. 여기 http://tausiq.wordpress.com/2012/12/12/android-custom-adapter-listview-with-listfragment-and-loadermanager-inside-fragmentactivity/

코드입니다 : 여기

public class MyActivity extends Fragment{ 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){ 
     View view = inflater.inflate(R.layout.my_activity_layout, container, false); 
     DataListFragment list = new DataListFragment(); 
     return view; 
    } 
    public static class DataListFragment extends ListFragment implements LoaderManager.LoaderCallbacks<List<Model>> { 
     CustomListViewAdapter mAdapter; 
     @Override 
     public void onActivityCreated(Bundle savedInstanceState) { 
      super.onActivityCreated(savedInstanceState); 
      setEmptyText("No Data Here"); 
      mAdapter = new CustomListViewAdapter(getActivity()); 
      setListAdapter(mAdapter); 
      setListShown(false); 
      // Prepare the loader. 
      getLoaderManager().initLoader(0, null, this); 
     } 
     @Override 
     public Loader<List<Model>> onCreateLoader(int arg0, Bundle arg1) { 
      System.out.println("DataListFragment.onCreateLoader"); 
      return new DataListLoader(getActivity()); 
     } 

     @Override 
     public void onLoadFinished(Loader<List<Model>> arg0, List<Model> data) { 
      mAdapter.setData(data); 
      System.out.println("DataListFragment.onLoadFinished"); 
      // The list should now be shown. 
      if (isResumed()) { 
       setListShown(true); 
      } else { 
       setListShownNoAnimation(true); 
      } 
     } 
     @Override 
     public void onLoaderReset(Loader<List<Model>> arg0) { 
      mAdapter.setData(null); 
     } 
    } 

    public static class DataListLoader extends AsyncTaskLoader<List<Model>> { 
     List<Model> mModels; 
     public DataListLoader(Context context) { 
      super(context); 
     } 
     @Override 
     public List<Model> loadInBackground() { 
      System.out.println("DataListLoader.loadInBackground"); 
      List<Model> entries = new ArrayList<Model>(5); 
      entries.add(new Model("1", "2","3")); 
      entries.add(new Model("1", "2","3")); 
      entries.add(new Model("1", "2","3")); 
      return entries; 
     } 

     /** 
     * Called when there is new data to deliver to the client. 
     */ 
     @Override public void deliverResult(List<Model> listOfData) { 
      if (isReset()) { 
       // An async query came in while the loader is stopped. We 
       // don't need the result. 
       if (listOfData != null) { 
        onReleaseResources(listOfData); 
       } 
      } 
      List<Model> oldApps = listOfData; 
      mModels = listOfData; 

      if (isStarted()) { 
       // If the Loader is currently started, we can immediately 
       // deliver its results. 
       super.deliverResult(listOfData); 
      } 

      // At this point we can release the resources associated with 
      // 'oldApps' if needed; now that the new result is delivered we 
      // know that it is no longer in use. 
      if (oldApps != null) { 
       onReleaseResources(oldApps); 
      } 
     } 

     /** 
     * Handles a request to start the Loader. 
     */ 
     @Override protected void onStartLoading() { 
      if (mModels != null) { 
       // If we currently have a result available, deliver it 
       // immediately. 
       deliverResult(mModels); 
      } 
      if (takeContentChanged() || mModels == null) { 
       // If the data has changed since the last time it was loaded 
       // or is not currently available, start a load. 
       forceLoad(); 
      } 
     } 

     /** 
     * Handles a request to stop the Loader. 
     */ 
     @Override protected void onStopLoading() { 
      // Attempt to cancel the current load task if possible. 
      cancelLoad(); 
     } 

     /** 
     * Handles a request to cancel a load. 
     */ 
     @Override public void onCanceled(List<Model> apps) { 
      super.onCanceled(apps); 

      // At this point we can release the resources associated with 'apps' 
      // if needed. 
      onReleaseResources(apps); 
     } 

     /** 
     * Handles a request to completely reset the Loader. 
     */ 
     @Override protected void onReset() { 
      super.onReset(); 

      // Ensure the loader is stopped 
      onStopLoading(); 

      // At this point we can release the resources associated with 'apps' 
      // if needed. 
      if (mModels != null) { 
       onReleaseResources(mModels); 
       mModels = null; 
      } 
     } 

     /** 
     * Helper function to take care of releasing resources associated 
     * with an actively loaded data set. 
     */ 
     protected void onReleaseResources(List<Model> apps) {} 

    } 
} 

사용자 정의 어댑터입니다 :

이것은 내가 사용하고 튜토리얼입니다

public class CustomListViewAdapter extends ArrayAdapter<Model>{ 
    private final LayoutInflater mInflater; 
    public CustomListViewAdapter(Context context) { 
     super(context, android.R.layout.simple_list_item_2); 
     mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 

    public void setData(List<Model> data) { 
     clear(); 
     if (data != null) { 
      for (Model appEntry : data) { 
       add(appEntry); 
      } 
     } 
    } 

    /** 
    * Populate new items in the list. 
    */ 
    @Override public View getView(int position, View convertView, ViewGroup parent) { 
     View view; 

     if (convertView == null) { 
      view = mInflater.inflate(R.layout.single_item, parent, false); 
     } else { 
      view = convertView; 
     } 

     Model item = getItem(position); 
     ((TextView)view.findViewById(R.id.tV_1)).setText(item.getA()); 
     ((TextView)view.findViewById(R.id.tV_2)).setText(item.getB()); 
     ((TextView)view.findViewById(R.id.tV_3)).setText(item.getC()); 

     return view; 
    } 
} 

그리고 이것은 내 주요 활동 :

public class MainActivity extends Activity{ 
    @Override 
    public void onCreate(Bundle savedInstanceState){ 
     super.onCreate(savedInstanceState); 

     setContentView(R.layout.main_layout); 

     FragmentManager fragmentManager = getFragmentManager(); 
     FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); 
     fragmentTransaction.add(R.id.song_info_fragment, new TopActivity()); 
     fragmentTransaction.add(R.id.playlist_activity_fragment, new MyActivity()); 
     fragmentTransaction.add(R.id.controls_fragment, new BottomActivity()); 
     fragmentTransaction.commit(); 

    } 

} 

코드를 실행할 때 위쪽 및 아래쪽 작업 만 표시됩니다. 이 문제를 어떻게 해결할 수 있습니까?

Answer 1

좋아, 마침내이 작업을 수행 할 수있었습니다. DataListFragment 클래스를 같은 이름으로 새 클래스 파일에 복사하고 정적 키 작업을 제거했습니다. 또한 dataListLoader라는 다른 섹션을 DataListLoader.java라는 다른 파일에 복사했습니다. 그리고 fragment.add() 트랜잭션을 mainActivity 파일로 옮겼습니다. 그리고 그것은 그것을했다!