/// <summary> /// 初始化所有头像 /// 由于所有联系人和最近会话中的头像数据量较大,因此需要单独调用函数进行初始化 /// </summary> /// <returns></returns> public async Task InitHeadImg() { if (State != LoginState.Logined) { throw new Exception("未登录状态下无法初始化头像"); } if (string.IsNullOrEmpty(SelfUser.HeadImgUrl)) { SelfUser.HeadImgUrl = await wxService.GetHeadImgBase64Async(SelfUser.UserName); } for (int i = 0; i < AllConnectUser.Count(); i++) { var item = AllConnectUser[i]; if (string.IsNullOrEmpty(item.HeadImgUrl)) { item.HeadImgUrl = await wxService.GetHeadImgBase64Async(item.UserName); } } for (int i = 0; i < LastConnectUser.Count(); i++) { var item = LastConnectUser[i]; if (string.IsNullOrEmpty(item.HeadImgUrl)) { var connect = AllConnectUser.Where(c => c.UserName == item.UserName).FirstOrDefault(); if (connect == null) { item.HeadImgUrl = await wxService.GetHeadImgBase64Async(item.UserName); } else { item.HeadImgUrl = connect.HeadImgUrl; } } } }