sealed class AddFriendResult
ADDED |
成功添加 (只在对方设置为允许任何人直接添加为好友时才会获得这个结果) object ADDED : DONE |
ALREADY_ADDED |
这个人已经是好友 object ALREADY_ADDED : DONE |
DONE |
abstract class DONE : AddFriendResult |
REJECTED |
对方拒绝添加好友 object REJECTED : AddFriendResult |
WAITING_FOR_APPROVAL |
等待对方同意 object WAITING_FOR_APPROVAL : DONE |