修復了帶有FragmentList和動態內容的標題

Question

我試圖在我的應用程序中修復帶有動態內容的列表標題。問題是我只看到標題而沒有看到內容。如果我評論了一些行，列表內容會出現，但標題不會顯示。我嘗試使用addHeader，但它使頭不固定。

我控制器

public class RadioListFragment extends ListFragment { 
    /** The Radios. */ 
    private ArrayList<Radio> mRadios; 

    /** The Header view. */ 
    private View mHeaderView; 

    /** The Radio adapter. */ 
    private RadioAdapter mRadioAdapter; 


    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     mRadios = RadioRepo.get(getActivity()).getRadios(); 
     mRadioAdapter = new RadioAdapter(mRadios); 

     setListAdapter(mRadioAdapter); 
    } 

    @TargetApi(11) 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup parent, 
      Bundle savedInstanceState) { 

     super.onCreateView(inflater, parent, savedInstanceState); 

     View v = inflater.inflate(R.layout.list_header_radio, parent, false); 
     //mHeaderView = v.findViewById(R.id.list_header_radioTextView); 

     // Inflate the Header View 
     /* 
     mHeaderView = (View)getActivity() 
       .getLayoutInflater() 
       .inflate(R.layout.list_header_radio, null, false); 
     */ 

     return v; 
    } 


    private class RadioAdapter extends ArrayAdapter<Radio> { 

     public RadioAdapter(ArrayList<Radio> radios) { 
      super(getActivity(), 0, radios); 
     } 

     @Override 
     public View getView(int position, View convertView, ViewGroup parent) { 
      // If we weren't given a view, inflate one 
      if (convertView == null) { 
       convertView = getActivity().getLayoutInflater() 
         .inflate(R.layout.list_item_radio, null); 
      } 

      // Configure the view for this Radio 
      Radio r = getItem(position); 
      TextView nameTextView = 
        (TextView)convertView.findViewById(R.id.radio_list_item_nameTextView); 
      nameTextView.setText(r.getName()); 
      return convertView; 
     } 
    } 
} 

list_header_radio.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" > 

    <TextView 
     android:id="@+id/list_header_radioTextView" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:gravity="center" 
     android:text="@string/dummy_text_view" /> 

    <ListView 
     android:id="@android:id/list" 
     android:layout_width="wrap_content" 
     android:layout_height="0dp" /> 

</RelativeLayout> 

list_item_radio.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" > 

    <ImageView 
     android:id="@+id/radio_list_item_logoImageView" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:adjustViewBounds="true" 
     android:contentDescription="@string/logo" /> 

    <TextView 
     android:id="@+id/radio_list_item_nameTextView" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_toRightOf="@id/radio_list_item_logoImageView" 
     android:text="@string/radios_name" /> 

</RelativeLayout> 

Answer 1

Tr的Ÿ更新您的ListView就象這樣：

<ListView 
    android:id="@android:id/list" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:layout_below="@+id/list_header_radioTextView" /> 

，你可以得到你的頭查看您的註釋行：

mHeaderView = v.findViewById(R.id.list_header_radioTextView);