Question

我已使用以下代码在Google地图中添加多边形

  for(int i = 0; i < [[polygon  valueForKey:@"coordinates"] count]; i++){

         [self.path addCoordinate:CLLocationCoordinate2DMake([[[[polygon  valueForKey:@"coordinates"] objectAtIndex:i] objectAtIndex:1] floatValue],[[[[polygon  valueForKey:@"coordinates"] objectAtIndex:i] objectAtIndex:0] floatValue])];
     }

     GMSPolygon *rectangle = [GMSPolygon polygonWithPath:self.path];
      rectangle.fillColor = [UIColor colorWithRed:255.0/255.0 green:0.0/255.0 blue:0.0/255.0 alpha:0.4];
      rectangle.map = self.mapView;
      rectangle.strokeColor=[UIColor redColor];
      [self.restrictedLocations addObject:rectangle];


      CLLocation *userLocation = [[mymanager sharedManager] userLocation];

        [self.mapView bringSubviewToFront:self.locationMarkerView];
        GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:userLocation.coordinate.latitude
                                                                longitude:userLocation.coordinate.longitude
                                                                     zoom:7];
  self.mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];

我可以在地图中看到多边形，并添加了以下代码以从地图中删除多边形。

[self.mapView clear];

并且这不起作用，我仍然可以在谷歌地图中看到多边形。

请帮帮我

UPDATE

My GSMMapView is not programmatically created , actually added one UIView and changed its class to GSMMApView. is that the issue ?

当我添加日志并运行此添加多边形方法时，所以我得到了以下值

我第一次在地图上看到多边形，那时我的日志

NSLog(@"%@",[mapView description]);

显示如下

<GMSMapView: 0x1610eb760; frame = (0 0; 320 504); clipsToBounds = YES; autoresize = RM+BM; gestureRecognizers = <NSArray: 0x16127e4f0>; layer = <GMSMapLayer: 0x1610ebc10>>

然后我试图运行[mapView clear]并且它不起作用所以我也得到了日志

第二次我的日志

NSLog(@"%@",[mapView description]);

显示如下

<GMSMapView: 0x15ff9c550; frame = (0 0; 0 0); clipsToBounds = YES; gestureRecognizers = <NSArray: 0x162340e30>; layer = <GMSMapLayer: 0x15ffca4b0>>

GMSMapView clear方法是不是删除GMSPolygon iOS？

0 个答案: