Android Open Source - AsmackChat Chat

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Licensed under Apache License, Version 2.0 or LGPL 2.1, at your option.
 * --//  w  w  w  .  ja v a2  s .com
 *
 * Copyright 2010 Rene Treffer
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * --
 *
 * Copyright (C) 2010 Rene Treffer
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
 */

package com.googlecode.asmack.chat;

import java.io.IOException;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.concurrent.atomic.AtomicInteger;

import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;
import org.xmlpull.v1.XmlSerializer;

import android.app.Activity;
import android.app.NotificationManager;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.net.Uri.Builder;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;

import com.googlecode.asmack.Attribute;
import com.googlecode.asmack.Stanza;
import com.googlecode.asmack.connection.IXmppTransportService;

/**
 * Main chat activity.
 */
public class Chat extends Activity implements OnClickListener {

    /**
     * Logging tag, ChatActivity.
     */
    private static final String TAG = Chat.class.getSimpleName();

    /**
     * ID string used as message stanza prefix (app + random).
     */
    private static final String ID =
        TAG + "-" +
        Integer.toHexString((int)(Math.random() * 255.9999));

    /**
     * Stanza unique id.
     */
    private static final AtomicInteger atomicInt = new AtomicInteger();

    /**
     * The text input field.
     */
    private EditText input;

    /**
     * XMLPullParser factory to generate a parser for messages.
     */
    private XmlPullParserFactory xmlPullParserFactory;

    /**
     * The remote jid of this chat.
     */
    private String to;

    /**
     * The local account jid of this chat.
     */
    private String from;

    /**
     * Full local user jid, if available.
     */
    public String fullJid;

    /**
     * The system wide notification manager.
     */
    private NotificationManager notificationManager;

    /**
     * Initialize the members of this activity and bind to the xmpp transport
     * service.
     * @param savedInstanceState The save state of this activity.
     */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        notificationManager = (NotificationManager)
                getApplicationContext()
                    .getSystemService(Context.NOTIFICATION_SERVICE);

        try {
            xmlPullParserFactory = XmlPullParserFactory.newInstance();
        } catch (XmlPullParserException e) {
            Log.e(TAG, "Can't intatiate xmlPullParser");
            finish();
            return;
        }
        xmlPullParserFactory.setNamespaceAware(true);
        xmlPullParserFactory.setValidating(false);

        Intent serviceIntent =
            new Intent(IXmppTransportService.class.getCanonicalName());
        startService(serviceIntent);

        serviceIntent =
            new Intent(IChatService.class.getCanonicalName());
        startService(serviceIntent);

        Intent intent = getIntent();
        String toFrom = intent.getData().getPathSegments().get(0);
        Log.d("Chat", toFrom);
        String splitToFrom[] = toFrom.split("/");
        to = splitToFrom[0];
        from = splitToFrom[1];

        setContentView(R.layout.main);

        TextView fromTextView = (TextView) findViewById(R.id.FromTextView);
        fromTextView.setText(from);
        TextView toTextView = (TextView) findViewById(R.id.ToTextView);
        toTextView.setText(to);
        Database.getDatabase(getApplicationContext(), null);
        ListView history = (ListView) findViewById(R.id.ChatHistoryList);
        history.setItemsCanFocus(false);
        history.setAdapter(
            new HistoryCursorAdapter(
                this,
                from,
                HistoryCursorAdapter.query(this, from, to),
                true
            )
        );
        Button send = (Button) findViewById(R.id.ChatButtonSend);
        send.setOnClickListener(this);
        input = (EditText) findViewById(R.id.ChatInput);
        input.setHint("Send " + XMPPUtils.getUser(to) + " a message");
        input.requestFocus();

        notificationManager.cancel(toFrom, 1);
    }

    /**
     * Clicked on button click, creating a new xmpp stanza and sending it
     * to the remote jid.
     * @param v The view catching the click, ignored.
     */
    @Override
    public void onClick(View v) {
        if (input == null) {
            Log.d(TAG, "input is null");
            return;
        }
        String msg = input.getEditableText().toString();
        StringWriter xml = new StringWriter();
        try {
            XmlSerializer serializer = xmlPullParserFactory.newSerializer();
            serializer.setOutput(xml);
            serializer.startTag(null, "message");
            serializer.startTag(null, "body");
            serializer.text(msg);
            serializer.endTag(null, "body");
            serializer.endTag(null, "message");
            serializer.flush();
        } catch (XmlPullParserException e) {
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        ArrayList<Attribute> attributes = new ArrayList<Attribute>();
        attributes.add(new Attribute("type", "", "chat"));
        attributes.add(new Attribute("to", "", this.to));
        attributes.add(new Attribute(
                "id",
                "",
                ID + "-" + Integer.toHexString(atomicInt.incrementAndGet()))
        );

        Stanza stanza =
            new Stanza("message", "", from, xml.toString(), attributes);
        Intent intent = new Intent();
        intent.setAction("com.googlecode.asmack.intent.XMPP.STANZA.SEND");
        intent.putExtra("stanza", stanza);
        intent.addFlags(Intent.FLAG_FROM_BACKGROUND);
        getApplicationContext().sendBroadcast(
            intent,
            "com.googlecode.asmack.intent.XMPP.STANZA.SEND"
        );

        ContentValues values = new ContentValues();
        values.put("ts", System.currentTimeMillis());
        values.put("via", from);
        values.put("jid", to);
        values.put("dst", to);
        values.put("src", from);
        values.put("msg", msg);
        Database.getDatabase(null, null).insert("msg", "_id", values);
        Builder builder = new Uri.Builder();
        builder.scheme("content");
        builder.authority("jabber-chat-db");
        builder.appendPath(from);
        builder.appendPath(to);
        getApplicationContext()
            .getContentResolver()
            .notifyChange(builder.build(), null);
        input.setText("");
    }

}

Java Source Code List

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