How to implement location search using google maps in ios? - ios

Question

I am building an iOS app.I am using storyboards to build the screens and i have integrated google map in my project.
I want to get location where tap in the map and want to show that location in a label like in Airbnb app.I’m unable to do that,could someone help.
here is my code:
- (void)viewDidLoad {
[super viewDidLoad];
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.86
longitude:151.20
zoom:6];
mapView_ = [GMSMapView mapWithFrame:CGRectZero camera:camera];
mapView_.myLocationEnabled = YES;
self.view = mapView_;
GMSMarker *marker = [[GMSMarker alloc] init];
marker.position = CLLocationCoordinate2DMake(-33.86, 151.20);
marker.title = #"Sydney";
marker.snippet = #"Australia";
marker.map = mapView_;
}
Help is appreciated!

Answer 1

You have to use the GMSMapViewDelegate protocol for that. Precisely, the method mapView:didTapAtCoordinate: will do what you require and detect a tap on the map and giving you the tap's coordinate.
To use the method, add the following line in your viewDidLoad:
mapView_.delegate = self;
Then in the same class implement the method:
- (void)mapView:(GMSMapView *)mapView didTapAtCoordinate:(CLLocationCoordinate2D)coordinate{
// coordinate contains your coordinate :)
NSLog(#"did tap at coordinate: (%f, %f)", coordinate.latitude, coordinate.longitude);
}
Update: To add a marker you can do the following:
- (void)mapView:(GMSMapView *)mapView didTapAtCoordinate:(CLLocationCoordinate2D)coordinate{
// coordinate contains your coordinate :)
NSLog(#"did tap at coordinate: (%f, %f)", coordinate.latitude, coordinate.longitude);
// Create the marker and add it to the map
CLLocationCoordinate2D position = CLLocationCoordinate2DMake(coordinate.latitude, coordinate.longitude);
GMSMarker *marker = [GMSMarker markerWithPosition:position];
marker.appearAnimation = kGMSMarkerAnimationPop;
marker.map = mapView_;
// Zoom into the current location
GMSCameraPosition *cameraPosition = [GMSCameraPosition cameraWithTarget:position zoom:15.0];
[mapView_ animateToCameraPosition:cameraPosition];
}