setColors:atLocations:
Sets the colors and corresponding unit distance values to create gradients.
Declaration
- (void) setColors:(NSArray<UIColor *> *) colors atLocations:(NSArray<NSNumber *> *) locations;- (void) setColors:(NSArray<NSColor *> *) colors atLocations:(NSArray<NSNumber *> *) locations;Parameters
- colors:
An array of colors making up the transition points of the gradient.
- locations:
An array of unit distance values that correspond to the provided colors.
Discussion
The unit distance value of 0 represents the start of the polyline, and 1 represents the end of the polyline. A gradient may have any number of steps along the length of the polyline.
To determine a location along the polyline, use location(atPointIndex:), or retrieve a set of locations using locationsAtPointIndexes:.