IOS development: Display location on Google Map

IOS developmentDisplay location on Google MapLocationIs the content to be introduced in this article, you can make a line of code to show yourLocation,IOS developmentThe MapKit in integrates the positioning function. You can use a line of code to display your currentLocationThe Code is as follows:

 
 

  
  
-(IBAction) showLocation:(id) sender {    
  
  
    if ([[btnShowLocation titleForState:UIControlStateNormal]     
  
  
         isEqualToString:@"Show My Location"]) {    
  
  
        [btnShowLocation setTitle:@"Hide My Location"    
  
  
                        forState:UIControlStateNormal];    
  
  
        mapView.showsUserLocation = YES;            
  
  
    } else {    
  
  
        [btnShowLocation setTitle:@"Show My Location"    
  
  
                        forState:UIControlStateNormal];    
  
  
        mapView.showsUserLocation = NO;    
  
  
    }        
  
  
}  
 
 

The key code is mapView. showUserLocation = YES.

Use CLLocationManager and MKMapView

In addition, the CoreLocation framework is used to write code to request the current location, which is also very simple:

Step 1: Create a CLLocationManager instance

 
 

  
  
CLLocationManager *locationManager = [[CLLocationManager alloc] init];  
 
 

Step 2: Set the CLLocationManager instance delegation and precision

 
 

  
  
locationManager.delegate = self;     
  
  
locationManager.desiredAccuracy = kCLLocationAccuracyBest;  
 
 

Step 3: Set the distance filter distanceFilter. The following indicates that the device must be at least 1000 meters moved before the delegated update is notified.

 
 

  
  
locationManager.distanceFilter = 1000.0f;  
 
 

Or the default settings without filters are as follows:

 
 

  
  
locationManager.distanceFilter = kCLDistanceFilterNone;  
 
 

Step 4: Start the request

 
 

  
  
[locationManager startUpdatingLocation];  
 
 

Use the following code to stop a request:

 
 

  
  
[locationManager stopUpdatingLocation];  
 
 

CLLocationManagerDelegate delegate

The delegate includes the locationManager: didUpdateToLocation: fromLocation method to obtain the longitude and latitude.

You can use the following code to obtain the longitude and latitude from the CLLocation instance:

 
 

  
  
CLLocationDegrees latitude = theLocation.coordinate.latitude;     
  
  
CLLocationDegrees longitude = theLocation.coordinate.longitude;  
 
 

Use the following code to obtain your altitude:

 
 

  
  
CLLocationDistance altitude = theLocation.altitude;  
 
 

Use the following code to obtain your displacement:

 
 

  
  
CLLocationDistance distance = [fromLocation distanceFromLocation:toLocation];  
 
 

Summary:IOS developmentDisplay location on Google MapLocationThis article mainly explains how to display your currentLocationFinally, I hope this article will help you!