java如何扩展ActionBarActivity和ListActivity？

Question

我需要在一个活动中使用两个继承，即ActionBarActivity和ListActivity。我该怎么办

注意：我有appcompat_v7库

以下是我的一些代码片段：

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

Answer 1

不能同时延伸两个对象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.