高德地图根据经纬度画折线, 虚线(以两个点为例)

- (void)createBrokenLine
{
CLLocationCoordinate2D commonPolyLineCoords[2];
for (int i =0; i < self.dataParkLaneArr.count; i ++) {
// 点的信息Model
ParkInfo *parkInfo = self.dataParkLaneArr[i];
// 点1 字符串形式的经纬度以逗号分隔;
CGFloat p1Longitude = [parkInfo.entrance componentsSeparatedByString:@","][0].floatValue;
CGFloat p1Latitude = [parkInfo.entrance componentsSeparatedByString:@","][1].floatValue;
// 点2
CGFloat p2Longitude = [parkInfo.exitus componentsSeparatedByString:@","][0].floatValue;
CGFloat p2Latitude = [parkInfo.exitus componentsSeparatedByString:@","][1].floatValue;

commonPolyLineCoords[0].longitude = p1Longitude;
commonPolyLineCoords[0].latitude = p1Latitude;

commonPolyLineCoords[1].longitude = p2Longitude;
commonPolyLineCoords[1].latitude = p2Latitude;
}

MAPolyline *commonPoly = [MAPolylinepolylineWithCoordinates:commonPolyLineCoordscount:2];
[self.mapViewaddOverlay:commonPoly];
}
// MAMapViewDelegate
- (MAOverlayView *)mapView:(MAMapView *)mapView viewForOverlay:(id<MAOverlay>)overlay
{
if ([overlayisKindOfClass:[MAPolylineclass]]) {
MAPolylineView *lineView = [[MAPolylineViewalloc] initWithPolyline:overlay];
// 把实线变成虚线加下边的三行代码
lineView.lineDashPhase =10; // 1
NSArray* array = [NSArrayarrayWithObjects:[NSNumbernumberWithInt:15] , [NSNumbernumberWithInt:15],nil]; // 2
lineView.lineDashPattern = array; // 3

lineView.lineWidth =8.f;
lineView.strokeColor = [UIColorcolorWithRed:0.318green:0.404blue:0.972alpha:1.000];
lineView.lineJoin =kCGLineJoinMiter;
lineView.lineCap =kCGLineCapButt;
return lineView;
}
returnnil;
}