ch25_gtalk.rar_android_ch25_gtalk_gtalk_gtalk andro

package net.blogjava.mobile.gtalk; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.Map; import org.jivesoftware.smack.Roster; import org.jivesoftware.smack.RosterEntry; import org.jivesoftware.smack.XMPPConnection; import org.jivesoftware.smack.packet.Message; import org.jivesoftware.smack.packet.Presence; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.TextView; import android.widget.AdapterView.OnItemClickListener; public class GTalk extends Activity implements OnMessageListener, OnContactStateListener, OnItemClickListener { public static XMPPConnection mConnection; public static Util mUtil; public static String mCurrentAccount; public static Map<String, Boolean> mChattingContactMap = new HashMap<String, Boolean>(); private Roster mRoster; private ContactsAdapter mContactsAdapter; private ArrayList<RosterEntry> mEntries; private ListView mlvContacts; private Thread mMessageReceiverThread; private Thread mUpdateContactStateThread; private MessageReceiver mMessageReceiver; private UpdateContactState mUpdateContactState; @Override protected void onDestroy() { mMessageReceiver.flag = false; mMessageReceiver.mCollector.cancel(); mUpdateContactState.flag = false; Presence presence = new Presence(Presence.Type.unavailable); mConnection.sendPacket(presence); mConnection.disconnect(); mConnection = null; super.onDestroy(); } @Override public void contactStateChange() { if (mConnection == null) return; Collection<RosterEntry> rosterEntries = mConnection.getRoster() .getEntries(); for (RosterEntry rosterEntry : rosterEntries) { Presence presence = mConnection.getRoster().getPresence( rosterEntry.getUser()); if (presence != null) { if (presence.isAvailable()) mContactsAdapter.setContactIcon(rosterEntry.getUser(), R.drawable.online); else mContactsAdapter.setContactIcon(rosterEntry.getUser(), R.drawable.offline); } } } @Override public void processMessage(Message message) { String account = mUtil.getLeftString(message.getFrom(), "/"); Boolean isChatting = mChattingContactMap.get(account); if (isChatting == null) { isChatting = false; } mChattingContactMap.put(account, true); if (!isChatting) { Intent intent = new Intent(this, ChatRoom.class); intent.putExtra("contactAccount", account); intent.putExtra("msg", message.getBody()); startActivity(intent); } } @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { String account = mContactsAdapter.getAccount(position); Intent intent = new Intent(this, ChatRoom.class); intent.putExtra("contactAccount", account); startActivity(intent); mChattingContactMap.put(account, true); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.gtalk); mlvContacts = (ListView) findViewById(R.id.lvContacts); mEntries = new ArrayList<RosterEntry>(); mRoster = mConnection.getRoster(); mContactsAdapter = new ContactsAdapter(this); mlvContacts.setOnItemClickListener(this); mlvContacts.setAdapter(mContactsAdapter); mMessageReceiver = new MessageReceiver(mCurrentAccount); mMessageReceiver.setOnMessageListener(this); mMessageReceiverThread = new Thread(mMessageReceiver); mMessageReceiverThread.start(); mUpdateContactState = new UpdateContactState(); mUpdateContactState.setOnContactStateListener(this); mUpdateContactStateThread = new Thread(mUpdateContactState); mUpdateContactStateThread.start(); setTitle("联系人列表(" + mCurrentAccount + ")"); } public static class Contact { public int iconResourceId; public String account; public String nickname; } private class ContactsAdapter extends BaseAdapter { private Context mContext; private LayoutInflater mLayoutInflater; private ArrayList<Contact> mContacts = new ArrayList<Contact>(); private Map<String, Integer> mContactMap = new HashMap<String, Integer>(); public ContactsAdapter(Context context) { mContext = context; mLayoutInflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); loadContacts(); } private void loadContacts() { Collection<RosterEntry> entries = mRoster.getEntries(); for (RosterEntry entry : entries) { Contact contact = new Contact(); contact.iconResourceId = R.drawable.offline; contact.account = entry.getUser(); contact.nickname = mUtil.getLeftString(entry.getUser(), "@"); mContacts.add(contact); mContactMap.put(contact.account, mContacts.size() - 1); } } @Override public int getCount() { return mContacts.size(); } @Override public Object getItem(int position) { return mContacts.get(position); } public String getAccount(int position) { return mContacts.get(position).account; } @Override public long getItemId(int position) { return position; } public void setContactIcon(String account, int resourceId) { Integer position = mContactMap.get(account); if (position != null) { if (mContacts.get(position).iconResourceId != resourceId) { mContacts.get(position).iconResourceId = resourceId; notifyDataSetChanged(); } } } @Override public View getView(int position, View convertView, ViewGroup parent) { LinearLayout linearLayout = (LinearLayout) mLayoutInflater.inflate( R.layout.contact_item, null); ImageView ivContactIcon = (ImageView) linearLayout .findViewById(R.id.ivContactIcon); TextView tvContactNickname = ((TextView) linearLayout .findViewById(R.id.tvContactNickname)); ivContactIcon .setImageResource(mContacts.get(position).iconResourceId); tvContactNickname.setText(mContacts.get(position).nickname); return linearLayout; } } }