private void Awake()
{
EventDelegate.Set(this.btn_mask.onClick, new EventDelegate.Callback(this.OnMaskBtnClick));
EventDelegate.Set(this.btn_back.onClick, new EventDelegate.Callback(this.OnBackBtnClick));
EventDelegate.Set(this.btn_friend.onClick, new EventDelegate.Callback(this.OnFriendBtnClick));
EventDelegate.Set(this.btn_add.onClick, new EventDelegate.Callback(this.OnAddBtnClick));
}