Android | AlertDialog on RecyclerView Item Click

Question

I have implemented a RecyclerView. Now I want to display an AlertDialog when an item of RecyclerView is clicked. I tried many ways and none of them worked. Here is my adapter class,

public class SearchResultAdapter extends RecyclerView.Adapter<SearchResultAdapter.MyViewHolder> {
private List<Searchresult> resultList;

public class MyViewHolder extends RecyclerView.ViewHolder {
    public TextView item1, item2, item3;

    public MyViewHolder(View view) {
        super(view);
        item1 = (TextView) view.findViewById(R.id.item1);
        item2 = (TextView) view.findViewById(R.id.item2);
        item3 = (TextView) view.findViewById(R.id.item3);
    }
}

public SearchResultAdapter(List<Searchresult> resultList) {
    this.resultList = resultList;
}

@Override
public MyViewHolder onCreateViewHolder(final ViewGroup parent, int viewType) {
    final View itemView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.search_result_row, parent, false);
    return new MyViewHolder(itemView);
}

@Override
public void onBindViewHolder(final MyViewHolder holder, int position) {
    Searchresult result = resultList.get(position);
    holder.item1.setText(result.getItem1());
    holder.item2.setText(result.getItem2());
    holder.item3.setText(result.getItem3());
}

@Override
public int getItemCount() {
    return resultList.size();
}
}

The AlertDialog should display item1,item2 and item3.Please help me to implement an onClickListener on RecyclerView.

Answer 1

problem is here , you have to also pass context to the adapter constructor like given below

 public SearchResultAdapter(List<Searchresult> resultList , Context context) {
    this.resultList = resultList;
    this.context = context
    }

in your Activity where you initiate adapter use like below

SearchResultAdapter madapter = new SearchResultAdapter (List, this);

then in your onBindViewHolder

@Override
public void onBindViewHolder(final MyViewHolder holder, int position) {
    Searchresult result = resultList.get(position);
     holder.item1.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            //pass the 'context' here
            AlertDialog.Builder alertDialog = new AlertDialog.Builder(context);
            alertDialog.setTitle("Your title");
            alertDialog.setMessage("your message ");
            alertDialog.setPositiveButton("CANCEL", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.cancel();
                }
            });
            alertDialog.setNegativeButton("YES", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {

                    // DO SOMETHING HERE

                }
            });

            AlertDialog dialog = alertDialog.create();
            dialog.show();
        }
    });
}

Answer 2

Use below code for open alert dialog;

  holder.item1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                AlertDialog.Builder builder1 = new AlertDialog.Builder(getActivity());
                builder1.setMessage("Do you want to remove ?");
                builder1.setCancelable(true);

                builder1.setPositiveButton(
                        "Yes",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int id) 
                             {                        
                         //Do your code...
                               }
                        });

                builder1.setNegativeButton(
                        "No",
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int id) {
                                dialog.cancel();
                            }
                        });

                AlertDialog alert11 = builder1.create();
                alert11.show();
            }
        });