/// <summary>
/// Validates the license async.
/// </summary>
/// <returns>The license async.</returns>
///
/// Get the licenseKey of the device -> ANDROID.ID
///
/// Validate the licensekey:
/// * If Network is available:
/// Validate the licensekey through the server -> TRUE -> Run the App
/// |
/// | FALSE
/// V
/// Msg(LicenseError) -> Do not run the App
/// ______________________________________________________________________________________________________________
///
/// * If no network available:
/// Run App
///
/// ____________________________________________________________________________________________________________________________________________________________________________________________________________
///
///
async private Task<bool> ValidateLicenseAsync(BusinessLayer.User user)
{
// get the ANDROID.ID
String android_id = Android.Provider.Settings.Secure.GetString(this.ContentResolver,
Android.Provider.Settings.Secure.AndroidId);
if (user.NetworkStatus != NetworkState.Disconnected)
{
if (await user.ValidateLicenseAsync(android_id) == false)
{
// user is not allowed to start app because license has not been validated
new AlertDialog.Builder(this)
.SetPositiveButton("OK", (sender, args) =>
{
// User pressed yes
})
.SetMessage(Resource.String.LicenseError)
.SetTitle(Resource.String.LicenseErrorTitle)
.Show();
return false;
}
else
{
// license validated
return true;
}
}
return true;
}
