如何扩展 ActionBarActivity 和 ListActivity?

How to extend ActionBarActivity and ListActivity?

我需要在一个 activity 中使用两个继承,即 ActionBarActivityListActivity。我能怎么做?

注意:我有 appcompat_v7 图书馆

这是我的一些代码片段:

    android.support.v7.app.ActionBar actionBar =  getSupportActionBar(); 
    actionBar.setDisplayShowTitleEnabled(true);
    actionBar.setDisplayHomeAsUpEnabled(true);
    actionBar.setTitle("test");
    setListAdapter(adapter); 

不能同时扩展两个对象。 Directly from Oracle's inheritance tutorial.

Excepting Object, which has no superclass, every class has one and only one direct superclass (single inheritance). In the absence of any other explicit superclass, every class is implicitly a subclass of Object.