android - 当我的类扩展 ExpandableListActivity 时如何获得 supportactionbar

Question

我有一个扩展 ExpandableListActivity 的类以将我的数据显示为可扩展 ListView ，现在我的应用程序支持旧版本直到 API 7 如何使用 添加 ActionBar getSupportActionBar() 到这个类...请帮助我

public class Facts extends ExpandableListActivity {


public void onCreate(Bundle savedInstanceState) {

    try{
        super.onCreate(savedInstanceState);
        setContentView(R.layout.facts);

        SimpleExpandableListAdapter expListAdapter =
                new SimpleExpandableListAdapter(
                        this,
                        createGroupList(),              // Creating group List.
                        R.layout.facts_grouprow,                // Group item layout XML.
                        new String[] { "questions" },   // the key of group item.
                        new int[] { R.id.row_name },    // ID of each group item.-Data under the key goes into this TextView.
                        createChildList(),              // childData describes second-level entries.
                        R.layout.facts_childrow,                // Layout for sub-level entries(second level).
                        new String[] {"answers"},       // Keys in childData maps to display.
                        new int[] { R.id.grp_child}     // Data under the keys above go into these TextViews.
                        );
        setListAdapter(expListAdapter);     // setting the adapter in the list

    }catch(Exception e){
        System.out.println("Errrr +++ " + e.getMessage());
    }

}

现在建议我如何实现它。

Answer 1

查看 ExpandableListActivity source code , 似乎很容易在您自己的类中复制相同的功能并将其扩展 ActionBarActivity 作为其基类。