<?xml version="1.0" encoding="utf-8"?> <LinearLayout     xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:orientation="vertical"     android:background="#FFFFFF"   >   <ExpandableListView        android:id="@+id/elv_journal_catalog"        android:layout_height="fill_parent"        android:layout_width="fill_parent"        android:cacheColorHint="#FFFFFF"        /> </LinearLayout>

 private ExpandableListView elv_journal_catalog;     private List<List<Article>> childrenObj;          private JournalCatalogListAdapter adapter;     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.journal_catalog);         init();         elv_journal_catalog.setGroupIndicator(null);         elv_journal_catalog.setDivider(null);         loadData();     }     private void init() {         elv_journal_catalog = (ExpandableListView) findViewById(R.id.elv_journal_catalog);         elv_journal_catalog.setOnChildClickListener(listener);     }     private void loadData() {         Message msg = handler.obtainMessage();         msg.what = 1;         msg.sendToTarget();         childrenObj = new ArrayList<List<Article>>();         new Thread() {             @Override             public void run() {                 if (!isLoading) {                     queryArticleList();                 } else {                     queryArticleListFromSqlite();                 }             }         }.start();         adapter = new JournalCatalogListAdapter(this, childrenObj);         elv_journal_catalog.setAdapter(adapter);     }

public class JournalCatalogListAdapter extends BaseExpandableListAdapter {     private LayoutInflater inflater;     private String[] parent = new String[] { "美颜美体", "潮流单品", "娱乐八卦", "情感",             "观点", "健康生活" };     private List<List<Article>> clildren = new ArrayList<List<Article>>();     public JournalCatalogListAdapter(Context context,             List<List<Article>> clildren) {         this.clildren = clildren;         inflater = LayoutInflater.from(context);     }     @Override     public Object getChild(int groupPosition, int childPosition) {         return clildren.get(groupPosition).get(childPosition);     }     @Override     public long getChildId(int groupPosition, int childPosition) {         return childPosition;     }     @Override     public View getChildView(int groupPosition, int childPosition,             boolean isLastChild, View convertView, ViewGroup parent) {         if (convertView == null) {             convertView = inflater.inflate(                     R.layout.journal_catalog_list_item_content, null);         }         TextView textView = (TextView) convertView                 .findViewById(R.id.tv_journal_catalog_list_item_content);         Article a = (Article) getChild(groupPosition, childPosition);         textView.setText(a.getTitle());         return convertView;     }     @Override     public int getChildrenCount(int groupPosition) {         return clildren.get(groupPosition).size();     }     @Override     public Object getGroup(int groupPosition) {         return parent[groupPosition];     }     @Override     public int getGroupCount() {         return parent.length;     }     @Override     public long getGroupId(int groupPosition) {         return groupPosition;     }     @Override     public View getGroupView(int groupPosition, boolean isExpanded,             View convertView, ViewGroup parent) {         if (convertView == null) {             convertView = inflater.inflate(                     R.layout.journal_catalog_list_item_title, null);         }         TextView textView = (TextView) convertView                 .findViewById(R.id.tv_journal_catalog_list_item_title);         String title = String.valueOf(getGroup(groupPosition));         textView.setText(title);         convertView.setOnClickListener(null);         return convertView;     }     @Override     public boolean hasStableIds() {         return true;     }     @Override     public boolean isChildSelectable(int groupPosition, int childPosition) {         return true;     } }