ch.bfh.instacircle.MessageCursorAdapter.java Source code

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Here is the source code for ch.bfh.instacircle.MessageCursorAdapter.java

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/*
 *  UniCrypt Cryptographic Library
 *  Copyright (c) 2013 Berner Fachhochschule, Biel, Switzerland.
 *  All rights reserved.
 *
 *  Distributable under GPL license.
 *  See terms of license at gnu.org.
 *  
 */

package ch.bfh.instacircle;

import java.text.SimpleDateFormat;
import java.util.Date;

import android.content.Context;
import android.database.Cursor;
import android.support.v4.widget.CursorAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

/**
 * This class implements a CursorAdapter which maps the fields of the cursor of
 * a Query to the message table into the list item
 * 
 * @author Juerg Ritter (rittj1@bfh.ch)
 */
public class MessageCursorAdapter extends CursorAdapter {

    /**
     * @param context
     *            The context from which it has been created
     * @param c
     *            The cursor which should be mapped into the the view
     */
    public MessageCursorAdapter(Context context, Cursor c) {
        super(context, c, 2);
    }

    /*
     * (non-Javadoc)
     * 
     * @see android.support.v4.widget.CursorAdapter#bindView(android.view.View,
     * android.content.Context, android.database.Cursor)
     */
    @Override
    public void bindView(View view, Context context, Cursor cursor) {

        // extracting the labels of the layout
        TextView content = (TextView) view.findViewById(R.id.content);
        TextView description = (TextView) view.findViewById(R.id.description);
        ImageView icon = (ImageView) view.findViewById(R.id.icon);

        // setting the content label
        content.setText(cursor.getString(cursor.getColumnIndex("message")));

        SimpleDateFormat sdf = new SimpleDateFormat();

        // create a readable date from the timestamp
        Date date = new Date(cursor.getLong(cursor.getColumnIndex("timestamp")));

        int messageType = cursor.getInt(cursor.getColumnIndex("message_type"));

        // setting the icon according to the message type
        switch (messageType) {
        case Message.MSG_CONTENT:

            if (cursor.getInt(cursor.getColumnIndex("sequence_number")) == -1) {
                description.setText("Unicast message received from "
                        + cursor.getString(cursor.getColumnIndex("identification")) + ",\n" + sdf.format(date));
                icon.setImageResource(R.drawable.glyphicons_120_message_full);
                icon.setBackgroundColor(context.getResources().getColor(android.R.color.holo_purple));
            } else {
                description.setText("Broadcast message received from "
                        + cursor.getString(cursor.getColumnIndex("identification")) + ",\n" + sdf.format(date));
                icon.setImageResource(R.drawable.glyphicons_120_message_full);
                icon.setBackgroundColor(context.getResources().getColor(android.R.color.holo_blue_light));
            }
            break;
        case Message.MSG_MSGJOIN:
            description.setText("Participant joined,\n" + sdf.format(date));
            icon.setImageResource(R.drawable.glyphicons_006_user_add);
            break;
        case Message.MSG_MSGLEAVE:
            description.setText("Participant left,\n" + sdf.format(date));
            icon.setImageResource(R.drawable.glyphicons_007_user_remove);
            break;
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * android.support.v4.widget.CursorAdapter#newView(android.content.Context,
     * android.database.Cursor, android.view.ViewGroup)
     */
    @Override
    public View newView(Context context, Cursor cursor, ViewGroup parent) {
        LayoutInflater inflater = LayoutInflater.from(context);
        View v = inflater.inflate(R.layout.list_item_message, parent, false);
        bindView(v, context, cursor);
        return v;
    }
}