Android：ListView在平板电脑模式下不显示任何内容

Question

我有一个应该在平板电脑和手机上运行的应用。对于平板电脑布局，我创建了这个布局，因此它启动了两个片段：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/linearLayout1"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <fragment
        android:id="@+id/search_panel_fragment"
        android:name="adam.czibere.fragments.tablet.SearchPanelFragment"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:tag="search_panel" />

    <fragment
        android:id="@+id/search_list_fragment"
        android:name="adam.czibere.fragments.tablet.SearchListFragment"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:tag="search_list" />

</LinearLayout>

到目前为止，这些片段显示了他们的观点。这两个片段的主机活动是SearchActivity。

    public class SearchListFragment extends Fragment {

private SearchEventListener seListener;

@Override
public void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);

}

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);

    try {
        seListener = (SearchEventListener) activity;
    } catch (ClassCastException e) {
        throw new ClassCastException(activity.toString()
                + " must implement SearchListFragmentListener");
    }
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    // TODO Auto-generated method stub


    View v = inflater.inflate(R.layout.kurva_lista, container, false);


    SearchActivity sa = (SearchActivity) getActivity();
    ListView list = (ListView) v.findViewById(R.id.listView1);
    list.setAdapter(sa.mobileAdapter);

    list.setOnScrollListener(new OnScrollListener() {

        @Override
        public void onScrollStateChanged(AbsListView view, int scrollState) {
            // TODO Auto-generated method stub
        }

        @Override
        public void onScroll(AbsListView view, int firstVisibleItem,
                int visibleItemCount, int totalItemCount) {
            // TODO Auto-generated method stub

            seListener.onListScrolled(view, firstVisibleItem,
                    visibleItemCount, totalItemCount);

        }
    });


return v;
}

    }

当我单击SearchPanelFragment上的搜索按钮时，它会为适配器创建一个列表并调用notifyDataSetChanged（），但屏幕上看不到任何内容。我检查了，适配器，它有一些值（getgropuCount不返回0）。我的适配器的getView方法根本没有被调用。奇怪的是，如果我在手机上试用它，它可以工作，它会填充列表。 （我在手机上使用另一个片段，但它也是一样的。在手机模式下，屏幕上只能看到一个片段）

这是适配器：

    public class MobileSearchListAdapter extends BaseAdapter{
private List<VCDR> items;
VCDR lastElementOnScreen;

private Context context;

public MobileSearchListAdapter( Context c,List<VCDR> objects) {
    items=objects;
    context=c;
    // TODO Auto-generated constructor stub
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    // TODO Auto-generated method stub
    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.search_list_item_viewpager, null);
    }
    VCDR currentItem=(VCDR) getItem(position);
    lastElementOnScreen=currentItem;
    TextView date= (TextView) convertView.findViewById(R.id.date);
    TextView dur = (TextView) convertView.findViewById(R.id.duration);
    TextView caller_name = (TextView) convertView.findViewById(R.id.caller_name);
    TextView caller_num = (TextView) convertView.findViewById(R.id.caller_number);
    TextView called_num = (TextView) convertView.findViewById(R.id.called_number);
    TextView called_name = (TextView) convertView.findViewById(R.id.caller_name);



    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
    SimpleDateFormat timeFormat = new SimpleDateFormat("HH:mm:ss");

    date.setText(dateFormat.format(currentItem.getStartTime()) + " " +
                        timeFormat.format(currentItem.getStartTime()));
    dur.setText(timeFormat.format(currentItem.getDuration()));
    called_name.setText(currentItem.getDestinationNameD());
    caller_name.setText(currentItem.getSourceName());
    called_num.setText(currentItem.getDestinationCallerID());
    called_num.setText(currentItem.getSourceCallerID());



    return convertView;
}

public VCDR getLastVisibleElemnt(){
    return lastElementOnScreen;
}

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

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

@Override
public long getItemId(int arg0) {
    // TODO Auto-generated method stub
    return 0;
}

}