/**
*
*
*
*
*
*/
public StubViewModel()
{
this.currentUser = null;
isLogin = false;
DataModel.init();
//在通讯录显示的（离线数据）
this.groups = new ObservableCollection <GroupViewModel>();
this.friends = new ObservableCollection <FriendViewModel>();
this.chats = new ObservableCollection <ChatViewModel>();
}
/**
* Log Out User
*/
public bool logout()
{
if (!isLogin)
{
return(false);
}
this.isLogin = false;
this.currentUser = null;
return(true);
}