Android Open Source - pokerCCF Chat Adapter

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License

The source code is released under:

Copyright (c) 2011-2014, Intel Corporation Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redist...

Java Source Code

/*
Copyright (c) 2011-2013, Intel Corporation
//from   ww w.  ja  v  a 2  s  . c  om
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright notice,
      this list of conditions and the following disclaimer.

    * Redistributions in binary form must reproduce the above copyright notice,
      this list of conditions and the following disclaimer in the documentation
      and/or other materials provided with the distribution.

    * Neither the name of Intel Corporation nor the names of its contributors
      may be used to endorse or promote products derived from this software
      without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
OF THE POSSIBILITY OF SUCH DAMAGE.
*/

package lo.wolo.pokerccf;

import java.util.ArrayList;
import java.util.List;

import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

/***
 * Simple adapter that puts lines of text into the chat listview.
 * <p>
 * There is no c3 specific code here.
 */
public class ChatAdapter extends BaseAdapter {
  
  List<String>chatHistory = new ArrayList<String>();
  Context context;
  
  //Constructor to initialize the reference of ChatAdapter.
  public ChatAdapter( Context context )
  {
    this.context = context;
  }
  
  //To retrieve the count of chatHistory list.
  @Override
  public int getCount() {
    synchronized(chatHistory) {
      return chatHistory.size();
    }
  }

  //To retrieve the element at significant position on chatHistory list.
  @Override
  public Object getItem(int position) {
    synchronized(chatHistory) {
      if( position >= 0 && position < chatHistory.size() )
        return chatHistory.get(position);
      else
        return null;
    }
  }

  //To retrieve the position of the object in the chatHistory list.
  @Override
  public long getItemId(int position) {
    return position;
  }

  //This method will be called automatically by Android to draw the ChatList UI.
  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    if( convertView == null ) {
      LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      convertView = inflater.inflate(R.layout.chat_row, null);
    } else
      convertView.setVisibility(View.VISIBLE);
    
    String line = null;
    synchronized(chatHistory) {
      if( position >= 0 && position < chatHistory.size())
        line = chatHistory.get(position);
    }
    
    if( line == null ) {
      convertView.setVisibility(View.GONE);
      return convertView;
    }
    
    TextView lineView = (TextView)convertView.findViewById(R.id.row_chat);
    lineView.setText(line);
    
    convertView.setOnClickListener(new OnClickListener() {
      
      @Override
      public void onClick(View arg0) {
        displayClearDialog();
      }
    });
    
    return convertView;
  }
  
  //This method will add chat messages line by line to the chatlist.
  public void addChatLine(String line)
  {
    chatHistory.add(line);
  }

  //Display confirmation dialog to clear the chatlist.
    private void displayClearDialog(){
      final AlertDialog.Builder builder = new AlertDialog.Builder(context);
      builder.setTitle("Do you wish to clear the chat list?");
      builder.setCancelable(false);
      builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which)
        {
          chatHistory.clear();
          notifyDataSetChanged();
        }
      });
      builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which)
        {
          if(builder!=null)
            dialog.dismiss();
        }
      });
      builder.show();
    }
}

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