Android Open Source - roodroid Conversations Adapter

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Back to project page roodroid.
License

The source code is released under:
Copyright (c) 2011, Jonathan Perichon & Lucas Gerbeaux Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"...
If you think the Android project roodroid listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package fr.utbm.roodroid.activity;
//from  w  ww  .j  a  va  2  s .  co m
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashSet;
import java.util.List;

import fr.utbm.roodroid.Conversation;
import fr.utbm.roodroid.Message;
import fr.utbm.roodroid.R;
import fr.utbm.roodroid.TextMessage;
import fr.utbm.roodroid.client.Client;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.BaseAdapter;
import android.widget.TextView;

public class ConversationsAdapter extends BaseAdapter implements OnClickListener {
  private static final int PREVIEWLENGTH = 25;
  private Context context;
  private List<Conversation> conversations;
  private MessagesAdapter messAdapter = null;

  public ConversationsAdapter(Context context, HashSet<Conversation> conversations) {
    this.context = context;
    updateConversations(conversations);
  }

  public List<Conversation> getConversations() {
    return conversations;
  }

  public void updateConversations(HashSet<Conversation> conversations) {
    if (conversations.size() == 0) {
      HashSet<Conversation> noConversation = new HashSet<Conversation>();
      noConversation.add(new Conversation("", "", new TextMessage(new Date(), null, "No conversations")));
      this.conversations = new ArrayList<Conversation>(noConversation);
      notifyDataSetChanged();
    }
    else {
      this.conversations = new ArrayList<Conversation>(conversations);
      Collections.sort(this.conversations);
      notifyDataSetChanged();
      if(messAdapter != null && this.conversations.contains(messAdapter.getId())) {
        messAdapter.updateMessages(this.conversations.get(messAdapter.getId()).getMessages());
        messAdapter.notifyDataSetChanged();
      }
    }
  }

  public int getCount() {
    return conversations.size();
  }

  public Object getItem(int position) {
    if (position >= conversations.size()) {
      throw new IndexOutOfBoundsException();
    }
    return conversations.get(position);
  }

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

  public MessagesAdapter getMessAdapter() {
    return messAdapter;
  }

  public void setMessAdapter(MessagesAdapter messAdapter) {
    this.messAdapter = messAdapter;
  }

  public View getView(int position, View convertView, ViewGroup viewGroup) {
    long nbUnreadMessages = Client.getUnreadMessages();
    if (nbUnreadMessages > 0) {
      String ns = Context.NOTIFICATION_SERVICE;
      NotificationManager mNotificationManager = (NotificationManager)context.getSystemService(ns);
      int icon = android.R.drawable.sym_action_call;
      CharSequence tickerText = "New message";
      long when = System.currentTimeMillis();
      Notification notification = new Notification(icon, tickerText, when);
      CharSequence contentTitle = "Roodroid";
      CharSequence contentText = nbUnreadMessages + " unread messages";
      Intent notificationIntent = new Intent(viewGroup.getContext(), ConversationsList.class);
      PendingIntent contentIntent = PendingIntent.getActivity(viewGroup.getContext(), 0, notificationIntent, 0);
      notification.setLatestEventInfo(viewGroup.getContext(), contentTitle, contentText, contentIntent);
      mNotificationManager.notify(1, notification);
    }

    if (position >= conversations.size()) {
      throw new IndexOutOfBoundsException();
    }

    Conversation entry = conversations.get(position);

    if (convertView == null) {
      LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      convertView = inflater.inflate(R.layout.conversation_row, null);
    }

    TextView contact = (TextView) convertView.findViewById(R.id.contact);
    contact.setText(entry.getContactName());

    Message lastMessage = entry.getMessages().get(entry.getMessages().size() - 1);

    TextView preview = (TextView) convertView.findViewById(R.id.preview);
    String content = lastMessage.getTextContent();
    if(content.length() > PREVIEWLENGTH) {
      content = content.substring(0, PREVIEWLENGTH);
      content += "...";
    }
    preview.setText(content);


    TextView date = (TextView) convertView.findViewById(R.id.date);
    Date now = new Date();
    String messageDate = "";
    if (lastMessage.getDate().getDate() == now.getDate() && lastMessage.getDate().getMonth() == now.getMonth() && lastMessage.getDate().getYear() == now.getYear()) {
      messageDate += new SimpleDateFormat("HH:mm").format(lastMessage.getDate());
    }
    else if (lastMessage.getDate().getDate() == now.getDate() -1 && lastMessage.getDate().getMonth() == now.getMonth() && lastMessage.getDate().getYear() == now.getYear()) {
      messageDate += "Yest";
    }
    else {
      messageDate += new SimpleDateFormat("dd/MM").format(lastMessage.getDate());
    }
    date.setText(messageDate);

    return convertView;
  }

  @Override
  public void onClick(View view) {
    notifyDataSetChanged();
  }

}
Java Source Code List
