Set OnClickListeners for buttons in spinner inside a recyclerView

Question

I wish to set onClickListeners for buttons in a spinner which is furthur inside a recyclerView. The following is what I have built(using spinner in my case):-

(https://i.stack.imgur.com/DmyJl.jpg)

Each of the items in my recyclerView has its own spinner which contains two options for every item: Update details and Delete. How and in which class can I set onClickListeners for these buttons so that I may be able to retrieve that which button(Update details or delete) is clicked on which item of recyclerView, so that I may be able to update/delete that particular password in my database. My code:-

PasswordsActivity.java:-

public class PasswordsActivity extends AppCompatActivity {

RecyclerView recyclerView;
FloatingActionButton FAB;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_passwords);

    recyclerView = (RecyclerView) findViewById(R.id.password_list);
    FAB = (FloatingActionButton) findViewById(R.id.buttonAdd);

    getSupportActionBar().setTitle("Saved Passwords");

    DBHelper helper = new DBHelper(this);

    ArrayList<PasswordModel> passwordModelArrayList = new ArrayList<>();
    passwordModelArrayList.clear();

    passwordModelArrayList = helper.readPasswords();

    PasswordAdapter passwordAdapter = new PasswordAdapter(this, passwordModelArrayList );

    RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this);

    recyclerView.setItemAnimator(new DefaultItemAnimator());

    recyclerView.setLayoutManager(layoutManager);

    recyclerView.setAdapter(passwordAdapter);

    FAB.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent(PasswordsActivity.this, AddPasswords.class);
            startActivity(intent);
        }
    });

}

@Override
protected void onResume() {
    super.onResume();
    DBHelper helper = new DBHelper(this);

    ArrayList<PasswordModel> passwordModelArrayList = new ArrayList<>();
    passwordModelArrayList.clear();

    passwordModelArrayList = helper.readPasswords();

    PasswordAdapter passwordAdapter = new PasswordAdapter(this, passwordModelArrayList );

    recyclerView.setAdapter(passwordAdapter);

}

PasswordAdapter.java:-

public class PasswordAdapter extends 
RecyclerView.Adapter<PasswordAdapter.MyViewHolder>{

Context context;
ArrayList<PasswordModel> arrayList;


@NonNull
@Override
public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.passwords_list, parent, false);

    return new MyViewHolder(view);
}

@Override
public void onBindViewHolder(@NonNull MyViewHolder holder, int position) {
    TextView username;
    TextView password;
    TextView website;

    username = holder.usernameView;
    password = holder.passwordView;
    website = holder.websiteView;

    username.setText(arrayList.get(position).getSavedUsername());
    password.setText(arrayList.get(position).getSavedPassword());
    website.setText(arrayList.get(position).getSavedWebsite());


}

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

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

class MyViewHolder extends RecyclerView.ViewHolder
{
    TextView usernameView;
    TextView websiteView;
    TextView passwordView;

    public MyViewHolder(final View itemView)
    {
        super(itemView);

        this.passwordView = (TextView)itemView.findViewById(R.id.textPassword);
        this.usernameView = (TextView)itemView.findViewById(R.id.textUsername);
        this.websiteView = (TextView)itemView.findViewById(R.id.textWebsite);

       Spinner spinner = (Spinner)itemView.findViewById(R.id.spinner);
        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(context.getApplicationContext(), R.array.options_array, android.R.layout.simple_spinner_item);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinner.setAdapter(adapter);

        itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

            }
        });
    }

}

public PasswordAdapter(Context context, ArrayList<PasswordModel> arrayList)
{
    this.context = context;
    this.arrayList = arrayList;
}

}

Please let me know if anything else is needed as well.

Answer 1

Welcome to SO! Yeah you can do it. Can you Please try changing your adapter class as following:

!!!UPDATE!!!

package com.xxx.sample;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

public class PasswordAdapter extends
        RecyclerView.Adapter<PasswordAdapter.MyViewHolder>{

    Context context;
    ArrayList<PasswordModel> arrayList;
    
    ItemClickCallBack callback;


    @NonNull
    @Override
    public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.passwords_list, parent, false);

        return new MyViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull MyViewHolder holder, int position) {
        PaaswordModel pwdModel = arrayList.get(position);
        holder.position = position;
        holder.bind(pwdModel);
    }

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

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

    class MyViewHolder extends RecyclerView.ViewHolder
    {
        TextView usernameView;
        TextView websiteView;
        TextView passwordView;
        int position;

        public MyViewHolder(final View itemView)
        {
            super(itemView);

            this.passwordView = (TextView)itemView.findViewById(R.id.textPassword);
            this.usernameView = (TextView)itemView.findViewById(R.id.textUsername);
            this.websiteView = (TextView)itemView.findViewById(R.id.textWebsite);

            Spinner spinner = (Spinner)itemView.findViewById(R.id.spinner);
            ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(context.getApplicationContext(), R.array.options_array, android.R.layout.simple_spinner_item);
            adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
            spinner.setAdapter(adapter);
        }

        public void bind(PaaswordModel pwdModel) {
            usernameView.setText(pwdModel.getSavedUsername());
            passwordView.setText(pwdModel.getSavedPassword());
            websiteView.setText(pwdModel.getSavedWebsite());
            itemView.setOnClickListener(view -> {
                callback.onItemClickCallBack(pwdModel);
            });
    spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int i, long id) {
    String value = getResources().getStringArray(R.id.<value_array>)[i];
        callback.onSpinnerClickCallBack(value, position);
    }

    @Override
    public void onNothingSelected(AdapterView<?> parentView) {
        // your code here or leave empty
    }

});
        }
    }

    public PasswordAdapter(Context context, ArrayList<PasswordModel> arrayList, ItemClickCallBack callback)
    {
        this.context = context;
        this.arrayList = arrayList;
        this.callback = callback;
    }
    
    public interface ItemClickCallBack {
        void onItemClickCallBack(PasswordModel item);
        void onSpinnerClickCallBack(String item, int pos);
    }

}

After that, you might find an error to your activity class in the following line:

PasswordAdapter passwordAdapter = new PasswordAdapter(this, passwordModelArrayList, <argument missing>);

PasswordActivity:

public class PasswordsActivity extends AppCompatActivity {

RecyclerView recyclerView;
FloatingActionButton FAB;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_passwords);

.....

    PasswordAdapter passwordAdapter = new PasswordAdapter(this, passwordModelArrayList, new PasswordAdapter.ItemClickCallBack{
@Override
public void onItemClickCallBack(PasswordModel model) {
// do your code using this model
}
@Override
public void onSpinnerClickCallBack(String spinnerItem, int pos) {
// do your code using this model
// spinnerItem gives the text of spinner item selected and pos gives the position of the item in recyclerView
}
});

Or you can pass this so that you might be able to implement the callback method inside your view class or activity class, and then you will be able to get the information from the 2 (two) overrides methods which are onItemClickCallBack (from item click) and onSpinnerClickCallBack (for spinner item click). Now you should be able to do your next work from here and on. Hopefully it will help you. Happy coding.