ListView控件过滤后，显示每个项目两次 [英] ListView displays each item twice after filtering

问题描述

我有一个列表，每行包括主要项目和子项目的。我使用的是过滤器，以刷新列表为用户键入搜索的EditText。
上输入列表中的项目就根据输入的字母得到持续显示，但是每个项目被显示两次。
下面是我的code：

I have a list, each row consisting of a main item and subitem. I am using a filter to refresh the list as the user types into a search edittext. On typing the items in the list do get displyed according to the typed alphabets, however each item is displayed twice. Below is my code:

  public class NewReqFragment extends ListFragment 
 {
        ListView newReqList;
    LayoutInflater inflater;
    String[] from = new String[] {"mainrow", "subrow"};
    EditText searchBar = null;
    SimpleAdapter sAdapter =null;

    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);             
    }

    public void onActivityCreated(Bundle savedInstanceState) 
        {
          super.onActivityCreated(savedInstanceState); 

          newReqList = this.getListView();

          searchBar = (EditText)this.getActivity().findViewById(R.id.searchbar);

          List<HashMap<String, String>> fillMaps = new ArrayList<HashMap<String, String>>();
          for(int i = 0; i < ListItemStrings.NEWREQTITLES.length; i++)
          {
                HashMap<String, String> map = new HashMap<String, String>();
                map.put("mainrow",ListItemStrings.NEWREQTITLES[i]);
                map.put("subrow",ListItemStrings.NEWREQCHILDLIST[i]);
                fillMaps.add(map);
              }         



          sAdapter = new SimpleAdapter (this.getActivity(), fillMaps
                  , R.layout.simple_list_item_checkable_1, 
                  from, new int[] {R.id.text1, R.id.text2}); 
          newReqList.setAdapter(sAdapter);
          searchBar.addTextChangedListener(filterTextWatcher);
    } 

    private TextWatcher filterTextWatcher = new TextWatcher() 
    {

        public void afterTextChanged(Editable s)
        {
        }

        public void beforeTextChanged(CharSequence s, int start, int count,
                int after) 
        {
        }

        public void onTextChanged(CharSequence s, int start, int before,
                int count) 
        {
            sAdapter.getFilter().filter(s);
            sAdapter.notifyDataSetChanged();           
        }


    };

    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
     {
        View v = inflater.inflate(R.layout.newreqscrlayout, container,false);
        return v;
     }        
}

任何人都可以请帮我找出什么是错的？

Can anyone please help me to find out what is wrong?

推荐答案

我解决它通过一个定制SimpleAdapter。结果
我的名单由一个项目和分项目。该SimpleAdapter方法​​performFiltering（）也过滤子项文本，从而增加每个项目twice.Making循环只执行一次得到的结果。

I solved it by making a custom SimpleAdapter.
My list consists of a Item and Subitem. The SimpleAdapter method performFiltering() was filtering the subitem text also and hence adding each item twice.Making the loop execute only once got the result.

这篇关于ListView控件过滤后，显示每个项目两次的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！