我正面临一个严峻的问题.我正在尝试在滚动时更改列表的背景颜色(透明)但无法执行此操作.我尝试通过xml的listView以及代码进行更改.但在两个条件列表背景变成白色.我正在使用 android.support.v4.app.ListFragment;和FragmentPagerAdapter.

我想更改列表滚动时间颜色更改.为此我正在使用以下代码.

@H_403_4@public static class ArrayListFragment extends ListFragment { int mNum; /** * Create a new instance of CountingFragment,providing "num" * as an argument. */ static ArrayListFragment newInstance(int num) { ArrayListFragment f = new ArrayListFragment(); // Supply num input as an argument. Bundle args = new Bundle(); args.putInt("num",num); f.setArguments(args); return f; } /** * When creating,retrieve this instance's number from its arguments. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mNum = getArguments() != null ? getArguments().getInt("num") : 1; } /** * The Fragment's UI is just a simple text view showing its * instance number. */ @Override public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) { View v = inflater.inflate(R.layout.fragment_pager_list,container,false); //v.setBackgroundResource(R.drawable.background); View tv = v.findViewById(R.id.text); ((TextView)tv).setText(frameName()); return v; } // @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); setListAdapter(new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_checked,RishavArraylist() )); }

请告诉我如何在运行时更改滚动列表的背景？谢谢.