import com.easemob.EMEventListener; //导入依赖的package包/类
/**
 * 全局事件监听
 * 这里是拿来获取用户资料和未读计数的
 */
protected void registerEaseMobEventListener() {

    EMChatManager.getInstance().registerEventListener(new EMEventListener() {
        @Override
        public void onEvent(EMNotifierEvent event) {
            final EMMessage msg = (EMMessage) event.getData();
            if (event.getEvent() == EMNotifierEvent.Event.EventNewMessage) {

                //未在聊天的任何界面就计数
                if (!EaseUI.getInstance().hasForegroundActivies()) {
                    PrefService.getInstance(mContext).increatUnread();
                    Log.d(TAG, "new Msg Count");
                }

                //更新联系人
                asyncContact(msg);

                //广播通知，主界面拿来更新的
                Intent broadcastIntent = new Intent(MsgReceiver.NEW_MSG_BROADCAST);
                mContext.sendBroadcast(broadcastIntent, null);
            }
        }
    });
}