我已经调用了下面的方法来绘制标记之间的虚线折线.在执行时,它表明只绘制实线.你能告诉我如何在Google Map上绘制虚线吗?

- (void) createDashedLine:(CLLocationCoordinate2D )thisPoint:(CLLocationCoordinate2D )nextPoint:
(UIColor *)colour
{
NSLog(@"next pt latitude %ff" , nextPoint.latitude);
NSLog(@"next pt longitude %ff" , nextPoint.longitude);
NSLog(@"this pt laatitude %ff" , thisPoint.latitude);
NSLog(@"this pt longitude %ff" , thisPoint.longitude);
double difLat = nextPoint.latitude - thisPoint.latitude;
double difLng = nextPoint.longitude - thisPoint.longitude;
double scale = camera.zoom * 2;
double divLat = difLat / scale;
double divLng = difLng / scale;
CLLocationCoordinate2D tmpOrig= thisPoint;
GMSMutablePath *singleLinePath = [GMSMutablePath path];
for(int i = 0 ; i < scale …Run Code Online (Sandbox Code Playgroud)