在Visual Studio中测量Android Xamarin应用中的数据使用情况的最佳方法是什么?
我想知道,为每个被叫请求传输了多少数据。 我在寻找Xamarin Profiler,但没有关于数据使用的任何信息。
感谢。
答案 0 :(得分:3)
您可以使用的一种方法是通过Android设备监视器来监视网络流量
或者,如果您在自定义处理程序中使用HttpClient
并记录请求有效负载的大小,则可以包装您的请求:
public class RequestLoggerHandler : HttpClientHandler
{
#if DEBUG
protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
var stopwatch = Stopwatch.StartNew();
HttpResponseMessage response = null;
var headers = request.Headers;
var responseString = string.Empty;
var requestString = string.Empty;
var outputStringBuilder = new StringBuilder();
const string LINE_ENDING = "===================================================================================================";
const string SECTION_ENDING = "---------------------------------------------------------------------------------------------------";
try
{
if (request.Content != null) requestString = await request.Content?.ReadAsStringAsync();
response = await base.SendAsync(request, cancellationToken);
responseString = await response.Content?.ReadAsStringAsync();
outputStringBuilder.AppendLine(LINE_ENDING);
// Headers
outputStringBuilder.AppendLine("REQUEST HEADERS:");
foreach (var header in headers)
outputStringBuilder.AppendLine($"HEADER: {header.Key}: {header.Value?.ToList()?.FirstOrDefault()}");
outputStringBuilder.AppendLine(SECTION_ENDING);
// Parameters
outputStringBuilder.AppendLine("REQUEST PARAMS:");
outputStringBuilder.AppendLine(requestString);
outputStringBuilder.AppendLine(SECTION_ENDING);
// Response
outputStringBuilder.AppendLine("RESPONSE:");
outputStringBuilder.AppendLine(responseString);
outputStringBuilder.AppendLine(SECTION_ENDING);
return response;
}
finally
{
stopwatch.Stop();
var totalSize = 0L;
if (response != null)
{
var bodylength = response.Content.Headers.ContentLength;
var headerlength = response.Headers.ToString().Length;
totalSize = bodylength.GetValueOrDefault() + headerlength;
}
outputStringBuilder.AppendLine(string.Format("REQUEST [{0}:{1}] Time:{2}| Size:{3}| HTTP-CODE:{4}",
request.Method.ToString(),
request.RequestUri,
stopwatch.Elapsed.ToString("ss\\.fff"),
totalSize.ToPrettyByteSize(),
response?.StatusCode.ToString() ?? "No Internet Connectivity"));
outputStringBuilder.AppendLine(LINE_ENDING);
Debug.WriteLine("\n" + outputStringBuilder);
}
}
#endif
}
然后在使用VSColorOutput extension的输出窗口中,它会生成一个很好的可读报告,包括您的请求/响应,包括时间和大小。如果你所追求的只是请求/响应大小,你可以简化这段代码。