Capture nearby places using Google maps

Question

I am trying to implement to find nearby places of my current location using google maps. I created a project in the Google Developer Console and got the "ios APIkey" and "Server APIkey". I also included the Google Places API and the Google Maps SDK for iOS. Below is a code that can be found near places.

func fetchPlacesNearCoordinate(coordinate: CLLocationCoordinate2D, radius: Double, name : String){ var urlString = "https://maps.googleapis.com/maps/api/place/nearbysearch/json?key=\(apiServerKey)&location=\(coordinate.latitude),\(coordinate.longitude)&radius=\(radius)&rankby=prominence&sensor=true" urlString += "&name=\(name)" urlString = urlString.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)! println(urlString) if placesTask.taskIdentifier > 0 && placesTask.state == .Running { placesTask.cancel() } UIApplication.sharedApplication().networkActivityIndicatorVisible = true placesTask = session.dataTaskWithURL(NSURL(string: urlString)!) {data, response, error in println("inside.") UIApplication.sharedApplication().networkActivityIndicatorVisible = false if let json = NSJSONSerialization.JSONObjectWithData(data, options:nil, error:nil) as? NSDictionary { if let results = json["results"] as? NSArray { for rawPlace:AnyObject in results { println(rawPlace) self.results.append(rawPlace as! String) } } } self.placesTask.resume() } } 

The transmitted coordinate is the current coordinate of the location. If I execute the above code, nothing happens, but the generated URL is valid. If I put this URL on Google, I get the correct results. But nothing is displayed in my application. Please help me solve this problem. and please let me know where it is wrong!

Answer 1

You add your places to the results array, but you did something to update your mapview, for example by adding markers to your mapview.

Example code Add marker in mapview:

  let returnedPlaces: NSArray? = jsonResult["results"] as? NSArray if returnedPlaces != nil { for index in 0..<returnedPlaces!.count { if let returnedPlace = returnedPlaces?[index] as? NSDictionary { var placeName = "" var latitude = 0.0 var longitude = 0.0 if let name = returnedPlace["name"] as? NSString { placeName = name as String } if let geometry = returnedPlace["geometry"] as? NSDictionary { if let location = geometry["location"] as? NSDictionary { if let lat = location["lat"] as? Double { latitude = lat } if let lng = location["lng"] as? Double { longitude = lng } } } let marker = GMSMarker() marker.position = CLLocationCoordinate2DMake(latitude, longitude) marker.title = placeName marker.map = self.mapView } } } 

You can see this tutorial on how to get nearby locations with Google Maps in Swift.

Answer 2

Just install your Latt, long and GoogleAPIKey.

 NSString *urlString= [NSString stringWithFormat:@"https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=%@,%@&radius=2000&key=%@",lati,longi,kGoogleAPIKey]; [NSURLConnection sendAsynchronousRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:urlString]] queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) { if (connectionError) { NSLog(@"Error"); } else { NSDictionary *dictJson = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil]; NSArray *arrayPlaces = [[NSArray alloc] initWithArray:[dictJson objectForKey:@"results"]]; NSLog("Place %@",arrayPlaces); } }]; 

Also, if you want to find a place in the text, just create a urlString as shown below.

  NSString *urlString = [NSString stringWithFormat:@"https://maps.googleapis.com/maps/api/place/autocomplete/json?sensor=true&key=%@&language=en&input=%@&query=123+main+street&radius=50000&location=0.0,0.0&rankby=distance",kGoogleAPIKey,searchText]; 

In arrayPlaces, you have nearby places.