CODEWITHSUNDEEP
iosobjective-ciphonecllocationmanager
God.Guo
God.Guo

Reputation: 23

On what condition horizontalAccuracy is negative&zero and how to simulate

I use 

[locations firstObject].horizontalAccuracy

In 

-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations

And I know

A negative value indicates that the location’s latitude and longitude are invalid.(horizontalAccuracy)

Question:

1) On what condition horizontalAccuracy is negative?
And is it means that when horizontalAccuracy is zero ,the position message is very nice(no miss)?

2) How can I simulate 1)? I want to know when 1) happens ,what will longitude and latitude be.

Thank you very much.

Upvotes: 1

Views: 199

Answers (1)

matt
matt

Reputation: 535791

horizontalAccuracy is -1 while the sensors are warming up and we have no location fix yet. It will never be 0; the best you will get is likely to be about 10, if that.

You don't need to "simulate" anything. Run the code on your device and it will very likely be -1 initially.

Upvotes: 2

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