与横向滚动视图的Andr​​oid垂直列表视图 [英] vertical list view with horizontal scroll view android

问题描述

我试图实现与水平滚动视图列表视图。我得到一个logcat的错误空指针异常，同时设置列表视图适配器。我的列表视图应该福尔摩斯片段内展示

 公共类扩展趋势SherlockFragment{
清单＆LT;串GT;清单;
    ListView的prog_list;
//整数的数组点存储在/清晰度图像/绘-LDPI /
公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，
           捆绑savedInstanceState）
{
          查看myFragmentView = inflater.inflate（R.layout.trendslay，集装箱，FALSE）;
          prog_list =（ListView控件）myFragmentView.findViewById（R.id.lv1）;
          返回prog_list;
         }
/ **当第一次创建活动调用。 * /
@覆盖
公共无效的onCreate（捆绑savedInstanceState）
{
    super.onCreate（savedInstanceState）;    名单=新的ArrayList＆LT;串GT;（）;
    list.add（HI）;
    list.add（你好）;
    list.add（如何 -  [R U）;
    list.add（HI）;
    list.add（你好）;
    list.add（如何 -  [R U）;
    list.add（HI）;
    list.add（你好）;
    list.add（如何 -  [R U）;    ArrayAdapter＆LT;串GT;适配器=新ArrayAdapter＆LT;串GT;（getActivity（）
              android.R.layout.simple_list_item_1，android.R.id.text1，清单）;
    prog_list.setAdapter（适配器）;
    }
 

解决方案

我不得不创建垂直ListView控件内的ListView水平的相同要求，我曾试图管理，使用的 TwoWayView 获取与垂直滚动的ListView项目水平滚动。您可以检查我的演示了在github一样 VerticalHorizo​​ntalListView。

I am trying to implement a list view with horizontal scroll view. I am getting a logcat error "null pointer exception " while setting list view adapter. My list view should be displayed inside sherlock fragment

public class Trending extends SherlockFragment

{
List<String> list;
    ListView prog_list;


// Array of integers points to images stored in /res/drawable-ldpi/
public View onCreateView(LayoutInflater inflater, ViewGroup container,
           Bundle savedInstanceState) 
{
          View myFragmentView = inflater.inflate(R.layout.trendslay, container,false);       
          prog_list = (ListView)myFragmentView.findViewById(R.id.lv1);
          return prog_list;
         }


/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);

    list = new ArrayList<String>();
    list.add("hi");
    list.add("hello");
    list.add("how r u");
    list.add("hi");
    list.add("hello");
    list.add("how r u");
    list.add("hi");
    list.add("hello");
    list.add("how r u");

    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
              android.R.layout.simple_list_item_1, android.R.id.text1,list);
    prog_list.setAdapter(adapter);


    }

解决方案

I had the same requirement of creating a Horizontal ListView inside Vertical ListView and I had tried to manage that using TwoWayView for Horizontal scrolling of ListView items with Vertical scrolling. You can check my demo for the same on github as VerticalHorizontalListView.

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