相关疑难解决方法(0)

我正在使用ListView作为ListFragment的一部分.我想添加一个具有特定/自定义高度的标题,但是我在标题视图的高度放置并不重要,它总是具有相同的高度.是否可以修改ListView的标题视图高度？

在我使用的代码下面:

header.xml

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="100dp" />

ListFragment

 @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        TextView fakeHeader = (TextView)getActivity().getLayoutInflater().inflate(R.layout.header, null);
        getListView().addHeaderView(fakeHeader);
    }

我正在向ListFragment添加标题,但标题不会出现.我尝试添加onCreate和onStart,但我已经设置了我的适配器.我在这里找到了在ListFragment中添加Header视图的最佳位置,但它无效.

@Override

     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                    Bundle savedInstanceState) {
                View v = getActivity().getLayoutInflater().inflate(R.layout.header,
                        null);
                container.addView(v,0);
                rla = new RowListAdapter(getActivity().getLayoutInflater(),
                        R.layout.itemlayout, rl);
                setListAdapter(rla);
                return super.onCreateView(inflater, container, savedInstanceState);
            }

    @Override
    public void onStart() {
        super.onStart();
        getListView().setBackgroundResource(R.color.tostadoclaro);
        getListView()
                .setDivider(getResources().getDrawable(R.drawable.divider));

        getListView().setDividerHeight(4);
    }

解!!!

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    View v = getActivity().getLayoutInflater().inflate(R.layout.header,
            null);
    this.getListView().addHeaderView(v);
    rla = new RowListAdapter(getActivity().getLayoutInflater(),
            R.layout.itemlayout, rl);
    setListAdapter(rla);
    super.onActivityCreated(savedInstanceState);
}
    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState){// Empty. Use original.}

如何在片段顶部添加textview.我使用以下适配器填充listfragment,xml文件是列表片段中的每一行.我需要在listview上添加一个textview,它必须与列表一起滚动吗？

     public class Adapter extends BaseAdapter {
    Context context;

    public TextView txtName;
    public TextView txtTitle;


    private LayoutInflater mInflater;
    private Storage storage;
    FontManager fontManager;
    Typeface typeface;

    public Adapter(Context _context,Storage _storage) {
        context = _context;

        mInflater = LayoutInflater.from(context);
        this.storage = _storage;

        fontManager = new FontManager(_context);
        typeface = fontManager.getTypeFace();

    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return _storage.size();
    }

    @Override
    public Object getItem(int arg0) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public long getItemId(int arg0) { …

我有两个由tabhost管理的ListFragments.我在标签之间切换的时间都很好.headerView已正确添加.我第二次在片段之间切换我得到这个execption:

10-05 15:15:01.585: ERROR/AndroidRuntime(23263): java.lang.IllegalStateException: Cannot add header view to list -- setAdapter has already been called. 
10-05 15:15:01.585: ERROR/AndroidRuntime(23263):     at android.widget.ListView.addHeaderView(ListView.java:261) 
10-05 15:15:01.585: ERROR/AndroidRuntime(23263):     at android.widget.ListView.addHeaderView(ListView.java:284) 
10-05 15:15:01.585: ERROR/AndroidRuntime(23263):     at it.chiesacattolica.archive.ArchiveFragment.onActivityCreated(ArchiveFragment.java:199) 
10-05 15:15:01.585: ERROR/AndroidRuntime(23263):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:858) 
10-05 15:15:01.585: ERROR/AndroidRuntime(23263):     at android.support.v4.app.FragmentManagerImpl.attachFragment(FragmentManager.java:1183)

和应用程序崩溃.我用来添加标题视图的代码如下:

@Override
public void onActivityCreated(Bundle arg0) {
    super.onActivityCreated(arg0);      
    getListView().setOnScrollListener(this);
    getListView().addHeaderView(searchBox);
    setListAdapter(mAdapter);
}

怎么了 ？提前致谢