Restrict the Google AutoComplete API to show only nearby locations - ios

Question

For location finding Google AutoComplete works good but its returning the search results all over the world. I want to restrict the search results either with in the 1000 meter radius or in a city. I followed this google link to integrate the autocomplete search. Only this below code used in project
-(void)autoComplete
{
GMSAutocompleteViewController *acController = [[GMSAutocompleteViewController alloc] init];
acController.delegate = self;
[self presentViewController:acController animated:YES completion:nil];
}
// Handle the user's selection.
- (void)viewController:(GMSAutocompleteViewController *)viewController
didAutocompleteWithPlace:(GMSPlace *)place {
[self dismissViewControllerAnimated:YES completion:nil];
// Do something with the selected place.
NSLog(#"Place name %#", place.name);
NSLog(#"Place address %#", place.formattedAddress);
NSLog(#"Place attributions %#", place.attributions.string);
}
- (void)viewController:(GMSAutocompleteViewController *)viewController
didAutocompleteWithError:(NSError *)error {
[self dismissViewControllerAnimated:YES completion:nil];
// TODO: handle the error.
NSLog(#"Error: %#", [error description]);
}
// User canceled the operation.
- (void)wasCancelled:(GMSAutocompleteViewController *)viewController {
[self dismissViewControllerAnimated:YES completion:nil];
}

Answer 1

You cannot 100% restrict it, But you can give more priority to your city by specifying its northeast and southwest corners, Here is the code
GMSAutocompleteViewController *acController = [[GMSAutocompleteViewController alloc] init];
acController.delegate = self;
CLLocationCoordinate2D northEast = CLLocationCoordinate2DMake(northEastLati, northEastLongi);
CLLocationCoordinate2D southWest = CLLocationCoordinate2DMake(southWestLati, southWestLongi);
acController.autocompleteBounds = [[GMSCoordinateBounds alloc] initWithCoordinate:northEast
coordinate:southWest];
[self presentViewController:acController animated:YES completion:nil];
Now you will get 99% of result will be belongs to your city. Hope it will help you.

Answer 2

Adding Swift Version.
If your autocompleteController is being presented, refresh it by calling
updateCoordinateBoundsOnAutoCompleteController()
/* Returns Bounds */
func getCoordinateBounds(latitude:CLLocationDegrees ,
longitude:CLLocationDegrees,
distance:Double = 0.001)->GMSCoordinateBounds{
let center = CLLocationCoordinate2D(latitude: latitude,
longitude: longitude)
let northEast = CLLocationCoordinate2D(latitude: center.latitude + distance, longitude: center.longitude + distance)
let southWest = CLLocationCoordinate2D(latitude: center.latitude - distance, longitude: center.longitude - distance)
return GMSCoordinateBounds(coordinate: northEast,
coordinate: southWest)
}
/* Refreshes AutoCompleteController */
func updateCoordinateBoundsOnAutoCompleteController(){
autocompleteController.viewWillAppear(true)
autocompleteController.viewDidAppear(true)
}