Get RecyclerViewAdapter onclick position in main activity

You can achieve this by creating an interface inside 

your adapter for an itemclicklistener and then you can

 set onItemClickListener from your MainActivity.

Somewhere inside your RecyclerViewAdapter you would

 need the following:



private onRecyclerViewItemClickListener mItemClickListener;


public void setOnItemClickListener(onRecyclerViewItemClickListener mItemClickListener) {

    this.mItemClickListener = mItemClickListener;
}


public interface onRecyclerViewItemClickListener {

    void onItemClickListener(View view, int position);
}


Then inside your ViewHolder (which I've added as an inner class inside my adapter),

 you would apply the listener to the components you'd like the user to click, like so:

 class RecyclerViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

    public ImageView imageview;

    RecyclerViewHolder(View view) {

        super(view);

        this.imageview = (ImageView) view

                .findViewById(R.id.image);

        imageview.setOnClickListener(this);
    }


    @Override

    public void onClick(View v) {

        if (mItemClickListener != null) {

            mItemClickListener.onItemClickListener(v, getAdapterPosition());
        }
    }
}

This example shows an onClickListener being applied to the image inside a ViewHolder.
To implement this code, you would setOnItemClickListener to your adapter 

inside MainActivity as shown above.


 recyclerView.setAdapter(adapter);// set adapter on recyclerview

            adapter.notifyDataSetChanged();// Notify the adapter

            adapter.setOnItemClickListener(new RecyclerViewAdapter.onRecyclerViewItemClickListener() {

    @Override

    public void onItemClickListener(View view, int position) {

        Switch (view.getId()) {

            case R.id.letter:
                //logic here
                break;

            case R.id.firstname:

                //logic here
                break;
        ....            

        }
    }
});