Question

我正在尝试实施一个在Recyclerview中显示结果的搜索视图。为此，我使用BaseAdapter作为recyclerview的适配器。现在，只要用户点击recyclerview中的特定项目（或以外行术语中的特定搜索查询），我就想要它，它应该返回我的位置。我尝试过使用getAdapterPosition，setonItemClickListener和所有其他可能的方法，但它们似乎都没有用。我附上了我的代码以供参考。任何形式的帮助都会很明显。

public class SearchAdapter extends BaseAdapter implements Filterable {

    private ArrayList<String> data;
    private String[] suggestions;
    private Drawable suggestionIcon;
    private LayoutInflater inflater;
    private boolean ellipsize;

    public SearchAdapter(Context context, String[] suggestions) {
        inflater = LayoutInflater.from(context);
        data = new ArrayList<>();
        this.suggestions = suggestions;
    }

    public SearchAdapter(Context context, String[] suggestions, Drawable suggestionIcon, boolean ellipsize) {
        inflater = LayoutInflater.from(context);
        data = new ArrayList<>();
        this.suggestions = suggestions;
        this.suggestionIcon = suggestionIcon;
        this.ellipsize = ellipsize;
    }

    @Override
    public Filter getFilter() {
        Filter filter = new Filter() {
            @Override
            protected FilterResults performFiltering(CharSequence constraint) {
                FilterResults filterResults = new FilterResults();
                if (!TextUtils.isEmpty(constraint)) {

                    // Retrieve the autocomplete results.
                    List<String> searchData = new ArrayList<>();

                    for (String string : suggestions) {
                        if (string.toLowerCase().contains(constraint.toString().toLowerCase())) {
                            searchData.add(string);
                        }
                    }

                    // Assign the data to the FilterResults
                    filterResults.values = searchData;
                    filterResults.count = searchData.size();
                }
                return filterResults;
            }

            @Override
            protected void publishResults(CharSequence constraint, FilterResults results) {
                if (results.values != null) {
                    data = (ArrayList<String>) results.values;
                    notifyDataSetChanged();
                }
            }
        };
        return filter;
    }

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

    @Override
    public Object getItem(int position) {
        return data.get(position);
    }

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

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

        SuggestionsViewHolder viewHolder;

        if (convertView == null) {
            convertView = inflater.inflate(R.layout.suggest_item, parent, false);
            viewHolder = new SuggestionsViewHolder(convertView);
            convertView.setTag(viewHolder);
        } else {
            viewHolder = (SuggestionsViewHolder) convertView.getTag();
        }

        String currentListData = (String) getItem(position);

        viewHolder.textView.setText(currentListData);
        if (ellipsize) {
            viewHolder.textView.setSingleLine();
            viewHolder.textView.setEllipsize(TextUtils.TruncateAt.END);
        }

        return convertView;
    }

    private class SuggestionsViewHolder {
        TextView textView;
        ImageView imageView;

        public SuggestionsViewHolder(View convertView) {
            textView = (TextView) convertView.findViewById(R.id.suggestion_text);
            if (suggestionIcon != null) {
                imageView = (ImageView) convertView.findViewById(R.id.suggestion_icon);
                imageView.setImageDrawable(suggestionIcon);
            }


        }

    }
}

Answer 1

试试这个：

    int position = getAdapterPosition();

Answer 2

在onBindViewHolder中为您的视图设置一个点击监听器，在其中使用mRecyclerView.getChildLayoutPosition((View)sender);（mRecyclerView是您在适配器中定义的RecyclerView，并在您的public Adapter方法中分配如下： mRecyclerView = recyclerView;

获取在Recyclerview BaseAdapter

2 个答案: