public string GetIdentifier()
{
String ret = "";
try
{
String strDeviceId = Android.Provider.Settings.Secure.GetString(Forms.Context.ContentResolver, Android.Provider.Settings.Secure.AndroidId);
Context contexto = Android.App.Application.Context;
TelephonyManager telephonyManager =
(TelephonyManager)contexto.GetSystemService(Context.TelephonyService);
if (Android.OS.Build.VERSION.SdkInt < Android.OS.BuildVersionCodes.O)
{
try
{
ret = telephonyManager.GetDeviceId(0);
}
catch (Exception)
{
try
{
ret = telephonyManager.GetDeviceId(1);
}
catch (Exception)
{
ret = telephonyManager.DeviceId;
}
};
}
else
{
try
{
ret = telephonyManager.GetImei(0);
if (ret == null)
{
ret = strDeviceId;
}
}
catch (Exception)
{
try
{
ret = strDeviceId; //telephonyManager.GetImei(1);
//if (ret == null)
// ret = strDeviceId;
}
catch (Exception)
{
ret = telephonyManager.Imei;
}
};
}
}
catch (Exception) { }
return(ret);
}
public UserDeviceModel GetIdentifier(int simSlot)
{
UserDeviceModel info = new UserDeviceModel();
try
{
TelephonyManager IMEI_telManager = (TelephonyManager)Forms.Context.GetSystemService(Context.TelephonyService);
if (IMEI_telManager != null)
{
info.DeviceInformation.IMEI = IMEI_telManager.GetDeviceId(simSlot);
info.DeviceInformation.PhoneNumber = IMEI_telManager.Line1Number;
}
}
catch (Exception)
{
}
return(info);
}
