Recyclerview adapter with CursorAdapter

Question

I'm trying to implement an adapter for a Recyclerview with the use of CusrorAdapter as below as suggested in the one of the solutions here.

I am new to Android and I don't quite know how I should override CursorAdapter's newView method and bindView method. Also I am guessing that mine adapter will have multiple variables in ViewHolder instead of one (View v1) as there are several textViews in my layout file, but I just don't know how they all fit in in the code.

public class MyRecyclerAdapter extends Adapter<MyRecyclerAdapter.ViewHolder {

// PATCH: Because RecyclerView.Adapter in its current form doesn't natively support
// cursors, we "wrap" a CursorAdapter that will do all teh job for us
CursorAdapter mCursorAdapter;
Context mContext;

public MyRecyclerAdapter(Context context, Cursor c) {
    mContext = context;
    mCursorAdapter = new CursorAdapter(mContext, c, 0) {

        @Override
        public View newView(Context context, Cursor cursor, ViewGroup parent) {
            // Inflate the view here
        }

        @Override
        public void bindView(View view, Context context, Cursor cursor) {
            // Binding operations

        }
    };
}

public static class ViewHolder extends RecyclerView.ViewHolder{
    View v1;
    public ViewHolder(View itemView) {
        super(itemView);
        v1 = itemView.findViewById(R.id.v1);
    }
}

@Override
public int getItemCount() {
    return mCursorAdapter.getCount();
}

@Override
public void onBindViewHolder(ViewHolder holder, int position) {
    // Passing the binding operation to cursor loader
    mCursorAdapter.bindView(holder.itemView, mContext, mCursorAdapter.getCursor());

}

@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    // Passing the inflater job to the cursor-adapter
    View v = mCursorAdapter.newView(mContext, mCursorAdapter.getCursor(), parent);
        return new ViewHolder(v);
    }
}

Answer 1

Somehow I managed to get it working although I don't understand how it works in details. Basically I added a ViewHolder variable as a class variable and change some parts of the code. The solution looks something like this when you have 2 TextView items (name and date) in your layout file called row.xml:

public class MyRecyclerAdapter extends Adapter<MyRecyclerAdapter.ViewHolder>{

    // PATCH: Because RecyclerView.Adapter in its current form doesn't natively support
    // cursors, we "wrap" a CursorAdapter that will do all teh job for us
    private CursorAdapter mCursorAdapter;
    private Context mContext;
    private ViewHolder holder;

    public MyRecyclerAdapter(Context context, Cursor c) {
        mContext = context;
        mCursorAdapter = new CursorAdapter(mContext, c, 0) {

            @Override
            public View newView(Context context, Cursor cursor, ViewGroup parent) {
                // Inflate the view here
                View v = LayoutInflater.from(context)
                    .inflate(R.layout.row_rv, parent, false);
                return v;
            }

            @Override
            public void bindView(View view, Context context, Cursor cursor) {
                // Binding operations
                String name = cursor.getString(cursor.getColumnIndexOrThrow("name"));
                String date = cursor.getString(cursor.getColumnIndexOrThrow("date"));

                holder.tvName.setText(name);
                holder.tvDate.setText(date);
            }
        };
    }

    public static class ViewHolder extends RecyclerView.ViewHolder{
        public TextView tvName;
        public TextView tvDate;

        public ViewHolder(View itemView) {
            super(itemView);
            tvName = (TextView) itemView.findViewById(R.id.name);
            tvDate = (TextView) itemView.findViewById(R.id.date);
        }
    }

    @Override
    public int getItemCount() {
        return mCursorAdapter.getCount();
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        // Passing the binding operation to cursor loader
        mcursorAdapter.getCursor().moveToPosition(position);
        mCursorAdapter.bindView(holder.itemView, mContext, mCursorAdapter.getCursor());
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        // Passing the inflater job to the cursor-adapter
        View v = mCursorAdapter.newView(mContext, mCursorAdapter.getCursor(), parent);
        holder = new ViewHolder(v);
        return holder;
    }
}

If anyone knows why it works, please feel free to join in the discussion. Thanks.