使用CustomView上的编辑文本进行搜索功能ListView

Question

我可以筛选出我的自定义列表。

问题是我的自定义listview有4个文本字段。 当我搜索我得到的结果，但如果我有我的列表行中的不同领域的一些重复的文本，然后过滤器返回相同数量的重复行。

如果说，我的条目是这些2行数据{苹果，苹果，橙，苹果}，{葡萄，瓜，芒果，桃子} ，我开始搜索苹果...我会看到3行重复的数据在我的列表视图而不是一个

我该如何阻止这种重复？

这里是我的代码：

adapter = new MyAdapter(
      this, 
      list, 
      R.layout.list_row, 
      new String[] {fruit1, fruit2, fruit3, fruit4 }, 
      new int[] {R.id.fruit1, R.id.fruit2, R.id.fruit3,R.id.fruit4}); 

    populateList(); 
    setListAdapter(adapter); 

    search.addTextChangedListener(new TextWatcher() { 
     @Override 
     public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) { 
      // When user changed the Text 
      ListScreen.this.adapter.getFilter().filter(cs); 
     } 

     @Override 
     public void beforeTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {} 

     @Override 
     public void afterTextChanged(Editable arg0) {} 
    }); 

    class MyAdapter extends SimpleAdapter{ 

    public PassAdapter(Context context, List<? extends Map<String, ?>> data, int resource, String[] from, int[] to) { 
     super(context, data, resource, from, to); 
     } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     View view = super.getView(position, convertView, parent); 
     arrow = (ImageView) view.findViewById(R.id.arrow); 
     data= (LinearLayout) view.findViewById(R.id.data); 

     arrow.setImageResource(R.drawable.arrow_down); 
     data.setVisibility(View.GONE); 

     return view; 
    } 

这里是我的自定义过滤器的代码以及 但这并不刷新我的名单

@Override 
    public Filter getFilter() { 

     Filter filter = new Filter() { 

      @Override 
      protected FilterResults performFiltering(CharSequence constraint) { 
       FilterResults res = new FilterResults(); 
       // We implement here the filter logic 
       if (constraint == null || constraint.length() == 0) { 
        // No filter implemented we return all the list 
        res.values = tempList; 
        res.count = tempList.size(); 
       } else { 
        synchronized(this){ 
         // We perform filtering operation 
         List<HashMap<String, String>> dataList = new ArrayList<HashMap<String, String>>(); 
         for (HashMap<String, String> data : tempList) { 
          if (data.get("fruit1").toUpperCase().startsWith(constraint.toString().toUpperCase())) 
           dataList.add(data); 
         } 

         res.values = dataList; 
         res.count = dataList.size(); 

        } 
       } 
       return res; 
      } 

      @SuppressWarnings("unchecked") 
      @Override 
      protected void publishResults(CharSequence constraint, FilterResults results) { 
       if (results.count == 0) 
         notifyDataSetInvalidated(); 
        else { 
         tempList = (ArrayList<HashMap<String, String>>) results.values; 
         notifyDataSetChanged(); 
        } 

      } 
     }; 
     return filter; 
    } 

Answer 1

发现周围

search.addTextChangedListener(new TextWatcher() { 
     @Override 
     public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) { 
      // When user changed the Text 
//    ListScreen.this.adapter.getFilter().filter(cs); 
      if(cs.length() == 0 || cs == null){ 
       list.clear(); 
       list.addAll(origList); 
      } 
      else{ 
       ArrayList<HashMap<String, String>> temp = new ArrayList<HashMap<String,String>>(); 
       for(HashMap<String, String> data : list){ 
        if(data.get("fruit1").toLowerCase().contains(cs.toString().toLowerCase())){ 
         temp.add(data); 
        } 
       } 
       list.clear(); 
       list.addAll(temp); 
      } 
      adapter.notifyDataSetChanged(); 
     } 

     @Override 
     public void beforeTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {} 

     @Override 
     public void afterTextChanged(Editable arg0) {} 
    }); 

Answer 2

工作我认为你的解决方案很简单

只需添加adapter.notifyDataSetChanged（）;在onTextChanged方法中。

例子：

search.addTextChangedListener(new TextWatcher() { 
    @Override 
    public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) { 
     // When user changed the Text 
     ListScreen.this.adapter.getFilter().filter(cs); 
     adapter.notifyDataSetChanged(); 
    } 

这只是解决该问题。

Answer 3

主要活动;

etsearch.addTextChangedListener(new TextWatcher() { 
      @Override 
      public void beforeTextChanged(CharSequence s, int start, int count, int after) { 

      } 

      @Override 
      public void onTextChanged(CharSequence s, int start, int before, int count) { 

        String text = etsearch.getText().toString().toLowerCase(Locale.getDefault()); 
       if(text.length()>2) 
       subCropAdapter.filter(text); 
      } 

      @Override 
      public void afterTextChanged(Editable s) { 

      } 
     }); 

而在适配器;

公共无效过滤（字符串charText）{

charText = charText.toLowerCase(Locale.getDefault()); 

    subCropModelList.clear(); 
    if (charText.length() == 0) { 

     subCropModelList.addAll(subCropModelArrayList); 

    } else { 
     for (SubCropModel wp : subCropModelArrayList) { 
      if (wp.getSubCropName().toLowerCase(Locale.getDefault()).contains(charText)) { 
       subCropModelList.add(wp); 
       //subCropModelArrayList.add(wp); 
      } 

     } 

     subCropModelArrayList.clear(); 
     subCropModelArrayList.addAll(subCropModelList); 
     notifyDataSetChanged(); 
    }