Get Started Contact sales

GoogleMaps Framework Reference

  • GMSStyleSpans creates an array of style spans for a given path, applying styles and lengths repeatedly.

  • It takes the path, styles, lengths, and length kind as input, allowing for customized styling of polylines or other paths.

  • Styles and lengths are applied in sequence and wrap around if necessary, ensuring continuous styling along the path.

  • Lengths can be interpreted as geodesic, rhumb, or projected distances depending on the specified length kind.

  • A practical example demonstrates creating a polyline with alternating black and white spans using GMSStyleSpans.

GMSStyleSpans

extern NSArray<GMSStyleSpan *> *_Nonnull GMSStyleSpans(
    GMSPath *_Nonnull path, NSArray<GMSStrokeStyle *> *_Nonnull styles,
    NSArray<NSNumber *> *_Nonnull lengths, GMSLengthKind lengthKind)

Returns an NSArray of GMSStyleSpan constructed by repeated application of style and length information from styles and lengths along path.

path the path along which the output spans are computed. styles an NSArray of GMSStrokeStyle. Wraps if consumed. Can’t be empty. lengths an NSArray of NSNumber; each entry gives the length of the corresponding style from styles. Wraps if consumed. Can’t be empty. lengthKind the interpretation of values from lengths (geodesic, rhumb or projected).

Example: a polyline with alternating black and white spans:

 GMSMutablePath *path;
 NSArray *styles = @[[GMSStrokeStyle solidColor:[UIColor whiteColor]],
                     [GMSStrokeStyle solidColor:[UIColor blackColor]]];
 NSArray *lengths = @[@100000, @50000];
 polyline.path = path;
 polyline.spans = GMSStyleSpans(path, styles, lengths, kGMSLengthRhumb);