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iOS: Update Geolocation.yml to clarify negative speed anomalies #9010

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May 4, 2017
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5 changes: 4 additions & 1 deletion apidoc/Titanium/Geolocation/Geolocation.yml
Original file line number Diff line number Diff line change
Expand Up @@ -935,7 +935,10 @@ properties:
- name: speed
summary: |
Current speed in meters/second. On iOS, a negative value indicates that the
heading data is not valid.
heading data is not valid or the accuracy is configured incorrectly.
Note: Due to the Apple Geolocation API, set the <Titanium.Geolocation.accuracy>
property to <Titanium.Geolocation.ACCURACY_BEST_FOR_NAVIGATION> in order to properly
measure speed changes and prevent the app from returning negative values.
type: Number

- name: timestamp
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