huaxun/Pods/GoogleMaps/Example/GoogleMapsDemos/Samples/MarkerEventsViewController.m

#if !defined(__has_feature) || !__has_feature(objc_arc)
#error "This file requires ARC support."
#endif

#import "GoogleMapsDemos/Samples/MarkerEventsViewController.h"

#import <GoogleMaps/GoogleMaps.h>

#import <QuartzCore/QuartzCore.h>

@implementation MarkerEventsViewController {
  GMSMapView *_mapView;
  GMSMarker *_melbourneMarker;
}

- (void)viewDidLoad {
  [super viewDidLoad];
  GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-37.81969
                                                          longitude:144.966085
                                                               zoom:4];
  _mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];

  GMSMarker *sydneyMarker = [[GMSMarker alloc] init];
  sydneyMarker.position = CLLocationCoordinate2DMake(-33.8683, 151.2086);
  sydneyMarker.map = _mapView;

  _melbourneMarker = [[GMSMarker alloc] init];
  _melbourneMarker.position = CLLocationCoordinate2DMake(-37.81969, 144.966085);
  _melbourneMarker.map = _mapView;

  _mapView.delegate = self;
  self.view = _mapView;
}

#pragma mark - GMSMapViewDelegate

- (UIView *)mapView:(GMSMapView *)mapView markerInfoWindow:(GMSMarker *)marker {
  if (marker == _melbourneMarker) {
    return [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"Icon"]];
  }

  return nil;
}

- (BOOL)mapView:(GMSMapView *)mapView didTapMarker:(GMSMarker *)marker {
  // Animate to the marker
  [CATransaction begin];
  [CATransaction setAnimationDuration:3.f];  // 3 second animation

  GMSCameraPosition *camera =
      [[GMSCameraPosition alloc] initWithTarget:marker.position
                                           zoom:8
                                        bearing:50
                                   viewingAngle:60];
  [mapView animateToCameraPosition:camera];
  [CATransaction commit];

  // Melbourne marker has a InfoWindow so return NO to allow markerInfoWindow to
  // fire. Also check that the marker isn't already selected so that the
  // InfoWindow doesn't close.
  if (marker == _melbourneMarker &&
      mapView.selectedMarker != _melbourneMarker) {
    return NO;
  }

  // The Tap has been handled so return YES
  return YES;
}

@end