Getting Latest App Version From Play Store Xamarin

How can I get latest android app version from Google play store? Earlier to used to do so by using below code using (var webClient = new System.Net.WebClient()) { var searchStr

Solution 1:

This will return a string-based version, at least until Google changes the html page contents again.

var version = await Task.Run(async () =>
{
    var uri = new Uri($"https://play.google.com/store/apps/details?id={PackageName}&hl=en");
    using (var client = new HttpClient())
    using (var request = new HttpRequestMessage(HttpMethod.Get, uri))
    {
      request.Headers.TryAddWithoutValidation("Accept", "text/html");
      request.Headers.TryAddWithoutValidation("User-Agent", "Mozilla/5.0 (Windows NT 6.2; WOW64; rv:19.0) Gecko/20100101 Firefox/19.0");
      request.Headers.TryAddWithoutValidation("Accept-Charset", "ISO-8859-1");
      using (var response = await client.SendAsync(request).ConfigureAwait(false))
      {
            try
            {
                response.EnsureSuccessStatusCode();
                var responseHTML = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
                var rx = new Regex(@"(?<=""htlgb"">)(\d{1,3}\.\d{1,3}\.{0,1}\d{0,3})(?=<\/span>)", RegexOptions.Compiled);
                MatchCollection matches = rx.Matches(responseHTML);
                return matches.Count > 0 ? matches[0].Value : "Unknown";
            }
            catch
            {
                return"Error";
            }
          }
      }
   }
);
Console.WriteLine(version);

Solution 2:

Based from this link, this exception is thrown when an application attempts to perform a networking operation on its main thread. You may refer with this thread wherein it stated that network operations on Android need to be performed off the main UI thread. The easiest way is use a Task to push it onto a thread in the default threadpool.