Search filter in listview returns incorrect results when an item is clicked

Question

I did my share of research and discovered three cases related to my problem.

Solution 1

Decision 2

Decision 3

I am not saying that my business is unique or something like that, it is not that I cannot make my answers work for me with a cord.

PROBLEM: I have listviewone that is filtered using the edit texttop. However, when I click on the found item, I get the result of selecting another image. The text works fine, but images are a problem.

For example: the list contains lines with images A, B, C, D

When you search for C, you will get a result filtered as C. But clicking on it will display the image from A. It looks like the position does not change for the images, but uses the original position of the adapter ArrayList.

Any help would be appreciated.

My adapter:

public class SearchListAdapter extends BaseAdapter implements Filterable {
    List<Model> mStringFilterList;
    ValueFilter valueFilter;
    ImageLoader imageLoader = AppController.getInstance().getImageLoader();
    private Activity activity;
    private LayoutInflater inflater;
    private List<Model> modelItems;
    private int mDefaultImageId;

    public SearchListAdapter(Activity activity, List<Model> modelItems) {
        this.activity = activity;
        this.modelItems = modelItems;
        mStringFilterList = modelItems;
    }


    public void setDefaultImageResId(int defaultImage) {
        mDefaultImageId = defaultImage;
    }

    @Override
    public int getCount() {
        return modelItems.size();
    }

    @Override
    public Object getItem(int location) {
        return modelItems.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.search_list_row, null);

        if (imageLoader == null)
            imageLoader = AppController.getInstance().getImageLoader();
        NetworkImageView thumbNail = (NetworkImageView) convertView
                .findViewById(R.id.thumbnail);
        TextView title = (TextView) convertView.findViewById(R.id.title);
        TextView rating = (TextView) convertView.findViewById(R.id.rating);
        TextView genre = (TextView) convertView.findViewById(R.id.genre);

        Model m = modelItems.get(position);

        // thumbnail image
        thumbNail.setImageUrl(m.getThumbnailUrl(), imageLoader);
        thumbNail.setTag(position);
        // title
        title.setText(m.getTitle());

        // amount
        rating.setText(String.valueOf(m.getRating()));

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

        return convertView;
    }

    @Override
    public Filter getFilter() {
        if (valueFilter == null) {
            valueFilter = new ValueFilter();
        }
        return valueFilter;
    }

    private class ValueFilter extends Filter {
        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            FilterResults results = new FilterResults();
            if (constraint != null && constraint.length() > 0) {
                ArrayList<Model> filterList = new ArrayList<Model>();
                for (int i = 0; i < mStringFilterList.size(); i++)
                    if ((mStringFilterList.get(i).getTitle().toUpperCase())
                            .contains(constraint.toString().toUpperCase())) {


                        Model m = new Model(mStringFilterList.get(i)
                                .getTitle(), mStringFilterList.get(i)
                                .getThumbnailUrl(), mStringFilterList.get(i)
                                .getRating(), mStringFilterList.get(i)
                                .getGenre());

                        filterList.add(m);
                    }
                results.count = filterList.size();
                results.values = filterList;
            } else {
                results.count = mStringFilterList.size();
                results.values = mStringFilterList;
            }
            return results;

        }

        @Override
        protected void publishResults(CharSequence constraint,
                                      FilterResults results) {
            modelItems = (List<Model>) results.values;
            notifyDataSetChanged();
        }

    }

}

Run code

lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                String name = ((TextView) view.findViewById(R.id.title))
                        .getText().toString();
                bitmap = ((Model) modelList.get(position)).getThumbnailUrl();
                String rate = ((TextView) view.findViewById(R.id.rating))
                        .getText().toString();
                String genres = ((TextView) view.findViewById(R.id.genre))
                        .getText().toString();

                Intent intent = new Intent(SearchActivity.this, Details.class);
                intent.putExtra(Title, name);
                intent.putExtra("images", bitmap);
                intent.putExtra(Rate, rate);
                intent.putExtra(Genre, genres);

                startActivity(intent);
            }
        });
    }

Run code

OnItemclickListener:

Answer 1

You can change the code

String name = ((TextView) view.findViewById(R.id.title)).getText().toString();
bitmap = ((Model) modelList.get(position)).getThumbnailUrl();
String rate = ((TextView) view.findViewById(R.id.rating)).getText().toString();
String genres = ((TextView) view.findViewById(R.id.genre)).getText().toString();

to

Model model=(Model)adapter.getItem(position);

It will get the model you clicked on and pass that model as serialized or what you want to do.

Hope this solves the problem.

Answer 2

use

 Model model = (Model) parent.getItemAtPosition(position);

, Intent. , modelItems = (List<Model>) results.values; modelItems.

lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

             Model model = (Model) parent.getItemAtPosition(position);
            Intent intent = new Intent(SearchActivity.this, Details.class);
            intent.putExtra(Title, model.getTitle());
            intent.putExtra("images", model.getThumbnailUrl());
            intent.putExtra(Rate, String.valueOf(model.getRating()));
            intent.putExtra(Genre, model.getGenre());

            startActivity(intent);
        }
    });
}

Answer 3

, , . . :

public Model getItemAtPosition(int position)
{
    return model.get(position);
}

OnItemClickListener:

bitmap = adapter.getItemAtPosition(position).getThumbnailUrl();

Answer 4

The problem onClickListenerreturns position=0when onClick, because in the filtered ListViewit has only one element C index=0, where the zero index refers to image A, thats why its displaying A image . See. This is for your solution: Get the source pointer from the Filtered list.