FireBaseMessagingApp/AdapterChatList.java at main · prakriti31/FireBaseMessagingApp · GitHub

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package com.codewithharry.firebase.adapters;

import android.content.Context;
import android.content.Intent;
import android.media.Image;
import android.provider.ContactsContract;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

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

import com.codewithharry.firebase.ChatActivity;
import com.codewithharry.firebase.R;
import com.codewithharry.firebase.models.ModelUser;
import com.squareup.picasso.Picasso;

import org.w3c.dom.Text;

import java.util.HashMap;
import java.util.List;

public class AdapterChatList extends RecyclerView.Adapter<AdapterChatList.myHolder> {

    Context context;
    List<ModelUser> userList;
    private HashMap<String, String> lastMessageMap;

    public AdapterChatList(Context context, List<ModelUser> userList) {
        this.context = context;
        this.userList = userList;
        lastMessageMap = lastMessageMap;
    }

    @NonNull
    @Override
    public myHolder onCreateViewHolder(@NonNull ViewGroup parent, int i) {
        //inflate layout row_chatList.xml
        View view = LayoutInflater.from(context).inflate(R.layout.row_chatlist, parent, false);
        return new myHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull myHolder holder, int i) {
        //get data
        String hisUid = userList.get(i).getUid();
        String userImage = userList.get(i).getImage();
        String userName = userList.get(i).getName();
        String lastMessage = lastMessageMap.get(hisUid);

        //set data
        holder.nameTv.setText(userName);
        if (lastMessage == null || lastMessage.equals("default")) {
            holder.lastMessageTv.setVisibility(View.GONE);
        } else {
            holder.lastMessageTv.setVisibility(View.VISIBLE);
            holder.lastMessageTv.setText(lastMessage);
        }
        try {
            Picasso.get().load(userImage).placeholder(R.drawable.ic_default_image_blue).into(holder.profileIv);
        } catch (Exception e) {
            Picasso.get().load(R.drawable.ic_default_image_blue).into(holder.profileIv);
        }

        //set online status of other users in chatlist
        if (userList.get(i).getOnlineStatus().equals("Online")){
            //online
            holder.onlineStatusIv.setImageResource(R.drawable.circle_online);
        } else {
            //offline
            holder.onlineStatusIv.setImageResource(R.drawable.circle_offline);
        }

        //handle click of user in chatlist
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //start chatActivity with that user
                Intent intent = new Intent(context, ChatActivity.class);
                intent.putExtra("hisUid", hisUid);
                context.startActivity(intent);
            }
        });

    }

    public void setLastMessageMap(String userId, String lastMessage) {
        lastMessageMap.put(userId, lastMessage);
    }

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

    class myHolder extends RecyclerView.ViewHolder {

        //views of row_chatList.xml
        ImageView profileIv, onlineStatusIv;
        TextView nameTv, lastMessageTv;

        public myHolder(@NonNull View itemView) {
            super(itemView);

            //init views
            profileIv = itemView.findViewById(R.id.profileIv);
            onlineStatusIv = itemView.findViewById(R.id.onlineStatusIv);
            nameTv = itemView.findViewById(R.id.nameTv);
            lastMessageTv = itemView.findViewById(R.id.lastMessageTv);
        }

    }
}