public static double?SetDoubleAndReturnPrevious(string key, double value)
{
double?result = null;
if (UserPrefs.HasKey(key))
{
string @string = PlayerPrefs.GetString(key);
try
{
result = new double?(double.Parse(@string, NumberStyles.Float, NumberFormatInfo.InvariantInfo));
}
catch (FormatException)
{
}
catch (OverflowException)
{
}
}
UserPrefs.SetDouble(key, value);
return(result);
}
