为什么对方删除我后，不会回调我的删除方法

对方同意申请好友可以收到监听，删除监听却收不到

package com.example.liaotian;



import java.util.List;



import android.app.Activity;

import android.content.Intent;

import android.graphics.drawable.BitmapDrawable;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.util.Log;

import android.view.ContextMenu;

import android.view.ContextMenu.ContextMenuInfo;

import android.view.Gravity;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.view.WindowManager.LayoutParams;

import android.widget.AdapterView.AdapterContextMenuInfo;

import android.widget.BaseAdapter;

import android.widget.EditText;

import android.widget.LinearLayout;

import android.widget.ListView;

import android.widget.PopupWindow;

import android.widget.TextView;

import android.widget.Toast;



import com.easemob.EMCallBack;

import com.easemob.EMConnectionListener;

import com.easemob.EMError;

import com.easemob.chat.EMChat;

import com.easemob.chat.EMChatManager;

import com.easemob.chat.EMContactListener;

import com.easemob.chat.EMContactManager;

import com.easemob.chat.EMGroupManager;

import com.easemob.exceptions.EaseMobException;

import com.easemob.util.NetUtils;



public class MainActivity extends Activity {

	private List usernames;

	private ListView listview;

	private FriendsAdapter fAdapter;

	

	

	

	Handler handle =new Handler(){

		public void handleMessage(android.os.Message msg) {

			switch (msg.what) {

			case 1:

				fAdapter.notifyDataSetChanged();

				break;

			

				

			case 3://同意添加好友

				String username3 =(String)msg.obj;

				Toast.makeText(getApplication(), username3+"已经同意添加你为好友", 1).show();

				

				break;

				

			case 4://被删除好友

				Toast.makeText(getApplication(), "被删除啦", 1).show();

				fAdapter.notifyDataSetChanged();

				break;

			case 5:

				String username5 =(String)msg.obj;

				Toast.makeText(getApplication(), username5+"申请添加好友", 1).show();

				break;

			case 6:

				String username6 =(String)msg.obj;

				Toast.makeText(getApplication(), username6+"拒绝添加你为好友", 1).show();

				break ;

			default:

				break;

			}

		};

	};

	

	

	

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);

		

		

		EMChatManager.getInstance().login("123","123",new EMCallBack() {//回调

			@Override

			public void onSuccess() {

				runOnUiThread(new Runnable() {

					public void run() {

						EMGroupManager.getInstance().loadAllGroups();

						EMChatManager.getInstance().loadAllConversations();

						Log.d("main", "登陆聊天服务器成功！");	

						init();

					}

				});

			}



			@Override

			public void onProgress(int progress, String status) {



			}



			@Override

			public void onError(int code, String message) {

				Log.d("main", "登陆聊天服务器失败！");

			}

		});

		

		

		

		listview = (ListView) findViewById(R.id.listview);

		fAdapter = new FriendsAdapter();

		listview.setAdapter(fAdapter);

		

		

		registerForContextMenu(listview);

		

		

		

		findViewById(R.id.find_friend).setOnClickListener(new View.OnClickListener() {

			

			@Override

			public void onClick(View v) {

				// TODO Auto-generated method stub

				startActivity(new Intent(getApplication(), FindFriends.class));

			}

		});

		

		

		

	}

	

	

	private void init() {

		// TODO Auto-generated method stub

		

		EMChatManager.getInstance().addConnectionListener(new MyConnectionListener());

		

		//获取好友列表

		new Thread(){

			public void run() {

				try {

					usernames = EMContactManager.getInstance().getContactUserNames();

					handle.sendEmptyMessage(1);

				} catch (EaseMobException e) {

					// TODO Auto-generated catch block

					e.printStackTrace();

				}

				

			};

		}.start();

		

		setLister();

	}

	

	

	public void setLister(){

		EMContactManager.getInstance().setContactListener(new EMContactListener() {

			

			@Override

			public void onContactAgreed(String username) {

				Log.i("test", " 好友请求被同意...");

				//好友请求被同意

			}

			

			@Override

			public void onContactRefused(String username) {

				//好友请求被拒绝

				Log.i("test", " 好友请求被拒绝...");

			}

			

			

			@Override

			public void onContactInvited(String username, String reason) {

				Log.i("test", " 申请添加好友...");

				//收到好友邀请

			}

			

			@Override

			public void onContactDeleted(List usernameList) {

				Log.i("test", " 被删除..."+usernameList);

				//被删除时回调此方法

			}

			

			

			@Override

			public void onContactAdded(List usernameList) {

				//增加了联系人时回调此方法

				Log.i("test", " 增加了联系人..."+usernameList);

			}

		});

		

		EMChat.getInstance().setAppInited();

	}

	

	

	@Override

	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {

		super.onCreateContextMenu(menu, v, menuInfo);

		// if(((AdapterContextMenuInfo)menuInfo).position > 0){ m,

		getMenuInflater().inflate(R.menu.delete_message, menu);

		// }

	}



	@Override

	public boolean onContextItemSelected(MenuItem item) {

		if (item.getItemId() == R.id.delete_message) {

			int i =((AdapterContextMenuInfo) item.getMenuInfo()).position;

			Log.i("test", "删除信息:"+i);

			return true;

		}else if(item.getItemId() == R.id.delete_friends){

			final int i =((AdapterContextMenuInfo) item.getMenuInfo()).position;

			new Thread(){

				public void run() {

					try {

						EMContactManager.getInstance().deleteContact(usernames.get(i));

						usernames.remove(i);

						handle.sendEmptyMessage(1);

					} catch (EaseMobException e) {

						// TODO Auto-generated catch block

						Log.i("test", "发生异常");

						e.printStackTrace();

					}

					

				};

				

			}.start();

			return true;

		}

		return super.onContextItemSelected(item);

	}

	

	

	class FriendsAdapter extends BaseAdapter{



		@Override

		public int getCount() {

			// TODO Auto-generated method stub

			return (usernames!=null && usernames.size()>0)?usernames.size():0;

		}



		@Override

		public Object getItem(int position) {

			// TODO Auto-generated method stub

			return null;

		}



		@Override

		public long getItemId(int position) {

			// TODO Auto-generated method stub

			return 0;

		}



		@Override

		public View getView(int position, View convertView, ViewGroup parent) {

			// TODO Auto-generated method stub

			View view =View.inflate(getApplication(), R.layout.my_friends_item, null);

			TextView userName = (TextView) view.findViewById(R.id.user_name);

			userName.setText(usernames.get(position));

			return view;

		}

		

	}

	

	private class MyConnectionListener implements EMConnectionListener {

	    @Override

		public void onConnected() {

	    	

		//已连接到服务器

		}

		@Override

		public void onDisconnected(final int error) {

			runOnUiThread(new Runnable() {



				@Override

				public void run() {

					if(error == EMError.USER_REMOVED){

						// 显示帐号已经被移除

					}else if (error == EMError.CONNECTION_CONFLICT) {

						// 显示帐号在其他设备登陆

					} else {

						if (NetUtils.hasNetwork(MainActivity.this)){

							//连接不到聊天服务器

						}else{

							//当前网络不可用，请检查网络设置

						}

					}

				}

			});

		}

	}

	

	

	@Override

	protected void onDestroy() {

		// TODO Auto-generated method stub

		super.onDestroy();

		EMChatManager.getInstance().logout();//此方法为同步方法

	}

	

}