CODEWITHSUNDEEP
react-nativegeolocation
m00n
m00n

Reputation: 2047

react native navigator.geolocation.getCurrentPosition not updating

I am using navigator.geolocation.getCurrentPosition() to get current location in mobile app.

At first it's getting current location correctly.

I am calling the function every second to keep location values(latitude, longitude) updated.

But each time I call the function it's returning same values and the timestamp is not changing as well.

Any ideas?

Upvotes: 4

Views: 4135

Answers (3)

Omi Akazawa
Omi Akazawa

Reputation: 1

On my environment, value 0 was treated as infinity . (I am using react-native)

So, I needed to change from maximumAge: 0 to maximumAge: 1.

Then I could get correct current position every time.

Upvotes: 0

Chandan Kumar
Chandan Kumar

Reputation: 115

You should consider using the parameter 'maximumAge' and set it to 0 to avoid getting cached values. e.g. 

navigator.geolocation.getCurrentPosition(position => {
      region: {
        latitude: position.coords.latitude,
        longitude: position.coords.longitude
      }
}, err => {
  console.log(err)
  alert('fetching the position failed')
}, {enableHighAccuracy: false, timeout: 20000, maximumAge: 0})

As per MDN documentation :

The PositionOptions.maximumAge property is a positive long value indicating the maximum age in milliseconds of a possible cached position that is acceptable to return. If set to 0, it means that the device cannot use a cached position and must attempt to retrieve the real current position. If set to Infinity the device must return a cached position regardless of its age.

Upvotes: 1

Hisham Mubarak
Hisham Mubarak

Reputation: 1609

You can pass additional options to getCurrentPosition() . Supported options are timeout (ms), maximumAge (ms), enableHighAccuracy (bool). Here you can see the maximumAge option. It will return the cached location data if there is a cached location within the maximumAge limit. You can set it to 0, so it will not return any cached data, instead read and return location data everytime you make a location request.

Also I am not sure if you will get updated location every second, it is an async task and sometimes longer than one second to complete the whole request > read location > send back response process. You'll have to keep this in mind too.

Upvotes: 0

Related Questions