iOS GPS Arrow White or Purple Color What is the difference?

The GPS arrow that appears in the status bar. For my app it always shows up as a white arrow even when the app is in the foreground. Whereas f开发者_Go百科or the Maps app the arrow shows up as purple. Is there a difference?

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purple means that it is actively using your location, whereas white means that it used the location services in the last 24 hours (but isnt currently requesting it)

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There is no difference, they are just represented for different UI status style. Both of them are meaning that the GPS is running to get a latest location.

You should be able to set the status bar style at plist property: UIStatusBarStyleBlackOpaque