According to the documentation, the accuracy member is one of the enum values...
module Position {
enum {
QUALITY_NOT_AVAILABLE = 0, // GPS is not available
QUALITY_LAST_KNOWN = 1, // The Location is based on the last known GPS fix
QUALITY_POOR = 2, // The Location was calculated with a poor GPS fix
QUALITY_USABLE = 3, // The Location was calculated with a usable GPS fix
QUALITY_GOOD = 4 // The Location was calculated with a good GPS fix
}
}
If you get the value 0 (QUALITY_NOT_AVAILABLE), then GPS position data is not available. If you want GPS position data after that, then you have to request it via a call to Position.enableLocationEvents(Position.LOCATION_ONE_SHOT, self.method(:onPosition)).
In my own testing using LOCATION_ONE_SHOT is the way to do this even in a widget and is fairly fast, as even there, in onPosition, you'll only see QUALITY_LAST_KNOWN for maybe an hour after the last time GPS was used on the watch.. LOCATION_ONE_SHOT give you your real location.
