public async Task <Task> RefreshThread()
{
return(Task.Run(async() =>
{
// 发送读取请求
Send_ReadMessageJson readJson = new Send_ReadMessageJson("read", viewModel.GetUserService().GetCurrentUserName());
await viewModel.SendMessageAsync(readJson);
// 获得读取信息
Receive_ReadJson receivedJson = await viewModel.ReadMessageAsync();
if (receivedJson.jsonMessages == null)
{
// 如果没有更新，则保持原状
}
else
{
// 如果有更新
this.Invoke(async() =>
{
// 保存数据
await viewModel.SaveMessgaeAsync(receivedJson);
// 刷新
await RefreshCollectionAsync();
await RefreshMessageListAsync();
});
}
}));
}
public async Task SaveMessgaeAsync(Receive_ReadJson receivedJson)
{
// 将返回的信息提出，逐个保存
if (receivedJson.jsonMessages != null)
{
foreach (var item in receivedJson.jsonMessages)
{
Message message = new Message()
{
dateTime = _userService.FromUnixTime(item.time),
message = item.message,
userName = item.from
};
List <string> member = new List <string>();
foreach (var friend in item.room)
{
if (friend != _userService.GetCurrentUserName())
{
member.Add(friend);
}
}
string folderName = _userService.GetDisplayName(member);
// 保存信息，如果不存在该会话，添加Detail.txt
bool result = await _userService.AddMessageAsync(_userService.GetCurrentUserName(), folderName, message);
if (!result)
{
await _userService.AddDetailAsync(_userService.GetCurrentUserName(), folderName, member);
}
}
}
}
public async Task <Receive_ReadJson> ReadMessageAsync()
{
// 读取信息，直到有响应/超过一段时间后再结束
if (!_webService.GetConnectStatus())
{
await _webService.BuiildConnectionAsync();
}
string data_received = _webService.Get_RawData();
DateTime beginTime = DateTime.Now;
while (data_received == "" && ((DateTime.Now - beginTime).TotalSeconds < 10))
{
await _webService.ReceiveAsync();
data_received = _webService.Get_RawData();
}
// 解析数据,返回
Receive_ReadJson receive_ReadJson = new Receive_ReadJson()
{
jsonMessages = new List <JsonMessage>()
};
JObject jObject = JObject.Parse(data_received);
receive_ReadJson.state = (bool)jObject["state"];
JArray jarray = JArray.Parse(jObject["messages"].ToString());
for (int i = 0; i < jarray.Count; i++)
{
JObject messageObject = JObject.Parse(jarray[i].ToString());
JsonMessage message = new JsonMessage()
{
room = new List <string>()
};
message.from = (string)messageObject["from0"];
message.message = (string)messageObject["message"];
message.time = (string)messageObject["time"];
JArray nameArray = JArray.Parse(messageObject["room"].ToString());
for (int j = 0; j < nameArray.Count; j++)
{
message.room.Add(nameArray[j].ToString());
}
receive_ReadJson.jsonMessages.Add(message);
}
return(receive_ReadJson);
}
