Is there any plugin or way to show 'new version of app available' alert when user opens app - xamarin

Question

I have Xamarin.Android app, I want to show alert to user (when user opens app) that please download latest version. Like other apps. How can I do that?
I have tried few ways but didn't get succeed. I have tried this. This is quite different from Android. I need it for Xamarin.
I already asked this question but existing functionality broke down due to having some changes in play store policies, consequently I am not getting specific string "itemprop=\"softwareVersion\">" from play store so I asked new question. Thank you

Answer 1

Working answer. I have used plugin for that Plugin.LatestVersion for Xam.Android to get latest version of app from Google play store. below line of code was returning latest app version.
var appStoreVersionString = await CrossLatestVersion.Current.GetLatestVersionNumber();
Then this is the further implementation
private void CompareVersion()
{
double currentVersion = 0d;
double appStoreversion = 0d;
bool IsUpdateRequired = false;
if (Context.PackageName != null)
{
PackageInfo info = Context.PackageManager.GetPackageInfo(Context.PackageName, PackageInfoFlags.Activities);
string currentVersionStrig = info.VersionName;
currentVersion = Convert.ToDouble(currentVersionStrig);
}
try
{
if (IsUpdateRequired == false)
{
string appStoreVersionString = string.Empty;
if (CheckNetConnection.IsNetConnected())
{
Task.Run(async () => { appStoreVersionString = await CrossLatestVersion.Current.GetLatestVersionNumber();}).Wait();
if (!string.IsNullOrEmpty(appStoreVersionString))
{
appStoreversion = Convert.ToDouble(appStoreVersionString);
if ((appStoreversion.ToString() != currentVersion.ToString() && (appStoreversion > currentVersion)))
{
IsUpdateRequired = true;
}
}
}
}
if (IsUpdateRequired)
{
Activity.RunOnUiThread(() =>
{
AlertDialog dialog = null;
var Alertdialog = new Android.App.AlertDialog.Builder(Context);
Alertdialog.SetTitle("Update Available");
Alertdialog.SetMessage($"A new version of [" + appStoreversion + "] is available. Please update to version [" + appStoreversion + "] now.");
Alertdialog.SetNegativeButton("Cancel", (sender, e) =>
{
if (dialog == null)
{
dialog = Alertdialog.Create();
}
dialog.Dismiss();
});
Alertdialog.SetPositiveButton("Update", (sender, e) =>
{
string appPackage = string.Empty;
try
{
appPackage = Application.Context.PackageName;
Utilities.Logout(Activity);
var ints = new Intent(Intent.ActionView, Android.Net.Uri.Parse("market://details?id=" + appPackage));
ints.SetFlags(ActivityFlags.ClearTop);
ints.SetFlags(ActivityFlags.NoAnimation);
ints.SetFlags(ActivityFlags.NewTask);
Application.Context.StartActivity(ints);
}
catch (ActivityNotFoundException)
{
var apppack = Application.Context.PackageName;
Utilities.Logout(Activity);
var ints = new Intent(Intent.ActionView, Android.Net.Uri.Parse("market://details?id=" + appPackage));
ints.SetFlags(ActivityFlags.ClearTop);
ints.SetFlags(ActivityFlags.NoAnimation);
ints.SetFlags(ActivityFlags.NewTask);
Application.Context.StartActivity(ints);
}
//this kills the app?
Android.OS.Process.KillProcess(Android.OS.Process.MyPid());
System.Environment.Exit(1);
});
if (dialog == null)
dialog = Alertdialog.Create();
dialog.Show();
});
}
}
catch (Exception ex)
{
var objLog = new LogService();
objLog.MobileLog(ex, SISConst.UserName);
}
}