android - 使用 BaseAdapter 的 ListView 搜索功能不填充搜索列表

Question

我一直在尝试实现对 listView 的简单搜索，我已经能够使用 Volley 填充它，但直到现在都无济于事。感谢 @Dhaval Patel 的帮助。但我现在遇到的问题是，当我搜索时，ListView 拒绝更改内容 从而使 whose 搜索在程序中无用

下面是我的代码:

public class MainActivity extends Activity {

   private ListView mList;
   private List<Movie> movieList = new ArrayList<Movie>();
   EditText inputSearch;


    protected void onCreate(Bundle savedInstanceState) {
           super.onCreate(savedInstanceState);
           requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
           setContentView(R.layout.activity_main);

       mList = (ListView) findViewById(R.id.list);
       inputSearch = (EditText) findViewById(R.id.inputSearch);


           adapter = new CustomListAdapter(this, movieList);
           mList.setAdapter(adapter);


        //SEARCH TEXTCHANGE
        inputSearch.addTextChangedListener(new TextWatcher() {

             @Override
             public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
                   // When user changed the Text
                  MainActivity.this.adapter.getFilter().filter(cs.toString());
                //FLAGS Cannot resolve method 'getFilter()' here
                }

             @Override
             public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                                      int arg3) {
                  // TODO Auto-generated method stub

             }

             @Override
             public void afterTextChanged(Editable arg0) {
                 // TODO Auto-generated method stub
             }
          });




    }



}

这也是我的 CustomListAdapter 类中的代码

public class CustomListAdapter extends BaseAdapter {

     private Activity activity;
     private LayoutInflater inflater;
     private List<Movie> movieItems;
     private String[] bgColors;
     private List<String>originalData = null;
     private List<String>filteredData = null;
     private ItemFilter mFilter = new ItemFilter();
        ImageLoader imageLoader = MyApplication.getInstance().getImageLoader();


         public CustomListAdapter(Activity activity, List<Movie> movieItems) {
             this.activity = activity;
             this.movieItems = movieItems;
             bgColors = activity.getApplicationContext().getResources().getStringArray(R.array.movie_serial_bg);
         }
         @Override
         public int getCount() {
                return movieItems.size();
         }

         @Override
        public Object getItem(int location) {
             return movieItems.get(location);
         }

            @Override
            public long getItemId(int position) {
               return position;
            }

         @Override
         public View getView(int position, View convertView, ViewGroup parent) {

            if (inflater == null)
              inflater = (LayoutInflater) activity
                 .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
             if (convertView == null)
                convertView = inflater.inflate(R.layout.list_row_image, null);

             if (imageLoader == null)
              imageLoader = MyApplication.getInstance().getImageLoader();
            NetworkImageView thumbNail = (NetworkImageView) convertView.findViewById(R.id.thumbnail);

             TextView serial = (TextView) convertView.findViewById(R.id.serial);
            TextView title = (TextView) convertView.findViewById(R.id.title);
            TextView rating = (TextView) convertView.findViewById(R.id.rating);
            TextView genre = (TextView) convertView.findViewById(R.id.genre);
            TextView year = (TextView) convertView.findViewById(R.id.releaseYear);

            // getting movie data for the row
            Movie m = movieItems.get(position);

            // thumbnail image
            thumbNail.setImageUrl(m.getThumbnailUrl(), imageLoader);

            // title
            title.setText(m.getTitle());

            // rating
             rating.setText("Rating: " + String.valueOf(m.getRating()));

            // genre
            String genreStr = "";
            for (String str : m.getGenre()) {
              genreStr += str + ", ";
              }
            genreStr = genreStr.length() > 0 ? genreStr.substring(0,
                 genreStr.length() - 2) : genreStr;
             genre.setText(genreStr);

            // release year
             year.setText(String.valueOf(m.getYear()));

             String color = bgColors[position % bgColors.length];
            serial.setBackgroundColor(Color.parseColor(color));




            return convertView;
     }



     public Filter getFilter() {
         return mFilter;
     }

private class ItemFilter extends Filter {
    @Override
    protected FilterResults performFiltering(CharSequence constraint) {

        String filterString = constraint.toString().toLowerCase();

        FilterResults results = new FilterResults();

        final List<String> list = originalData;

        int count = list.size();
        final ArrayList<String> nlist = new ArrayList<String>(count);

        String filterableString ;

        for (int i = 0; i < count; i++) {
            filterableString = list.get(i);
            if (filterableString.toLowerCase().contains(filterString)) {
                nlist.add(filterableString);
            }
        }

        results.values = nlist;
        results.count = nlist.size();

        return results;
    }

    @SuppressWarnings("unchecked")
    @Override
    protected void publishResults(CharSequence constraint, FilterResults results) {
        filteredData = (ArrayList<String>) results.values;
        notifyDataSetChanged();
    }

}



}

那么有人可以告诉我我做错了什么吗？提前致谢

Answer 1

private class ItemFilter extends Filter { 
   @Override 
   protected FilterResults performFiltering(CharSequence constraint) {

    String filterString = constraint.toString().toLowerCase();

    FilterResults results = new FilterResults();

    final List<Movie> list = movieItems;

    int count = list.size();
    final ArrayList<Movie> nlist = new ArrayList<Movie>(count);

    String filterableString ;

    for (int i = 0; i < count; i++) {
        filterableString = list.get(i).getName();
        if (filterableString.toLowerCase().contains(filterString)) {
            nlist.add(list.get(i));
        } 
    } 

    results.values = nlist;
    results.count = nlist.size();

    return results;
} 

@SuppressWarnings("unchecked") 
@Override 
protected void publishResults(CharSequence constraint, FilterResults results) {
    movieItems= (ArrayList<String>) results.values;
    notifyDataSetChanged();
} 

}