如何在具有Alphabet-indexed Section Headers的ListView中实现searchFilter

Question

我必须在ListView中使用Alphabetical SectionHeader实现Filter。ListView having Alphabetic Section Header

我使用上面链接中的示例来创建我的ListView。如何在此ListView中实现搜索过滤器。我需要一个类似下面

的布局

Answer 1

For this to implement you need a TextWatcher for the edittext in which user will type when user will type something you create a Arraylist that will be updated with the items and then notify the Listview


search.addTextChangedListener(new TextWatcher() {

   Boolean called =false;
   @Override
   public void onTextChanged(CharSequence s, int start, int before, int count) {
    coffeeshopsearch=new ArrayList<CoffeeShopBean>();
    for (int i = 0; i < coffeeShop.size(); i++) {
     if(coffeeShop.get(i).name1.toLowerCase().contains(String.valueOf(s).toLowerCase()))
     {
      coffeeshopsearch.add(coffeeShop.get(i));
     }
    }
    if(coffeeshopsearch.size()>0)
    {
     lv.setVisibility(View.VISIBLE);
     adapter.add(coffeeshopsearch);
     adapter.notifyDataSetChanged();
    }
    else
    {
     if(!called)
     {
      Toast.makeText(getActivity(), "No Items Found!!!!", Toast.LENGTH_SHORT).show();
      called=true;
     }
     lv.setVisibility(View.GONE);
    }
   }