Getting heading value -1 in Geolocation.getCurrentPosition method only in iOS

[harikanammi]

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Platforms

iOS

Versions

• react-native-geolocation:1.4.2
• react-native:0.58.4
• react:16.6.3

Description

I am using Geolocation.getCurrentPosition method for getting current latitude and longitude and I am getting heading value as -1 in iOS whereas in android it working fine. How to get the correct heading value to rotate the marker.

Code

 Geolocation.getCurrentPosition(info => {
        console.log("Geolocation",info)
});

Screenshot

[sanderwapstra]

@harikanammi Did you find a solution? I'm having the same issue. Thanks!

[stefanoTron]

experiencing the same thing here, did anyone find a solution?

[turnipdabeets]

I believe this only works on a device and not a simulator. Also on the device you need to have the Compass Calibration turned on:

Go to Setting > Privacy > Location Services > System Services > Compass Calibration > Enable

[naftalibeder]

This is because on iOS, heading pulls from CLLocation.course, which refers to "The direction in which the device is traveling". So if the device is not moving along a path, the value will be -1.