Only add pin when button is clicked - ios

Question

I have this code that I need altered slightly. The code I have below creates a pin on my current location (perfectly as I might add).
The only problem is that I need the code only to be run when I click a button, not every time I move.
Here is the code of the current location and the pin.
- (void)viewDidLoad {
[super viewDidLoad];
[self.mapView setDelegate:self];
[self.mapView setShowsUserLocation:YES];
}
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation {
// zoom to region containing the user location
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(userLocation.coordinate, 700, 700);
[self.mapView setRegion:[self.mapView regionThatFits:region] animated:YES];
// add the annotation
MKPointAnnotation *point = [[MKPointAnnotation alloc] init];
point.coordinate = userLocation.coordinate;
point.title = #"Your Car";
//point.subtitle = #"";
[self.mapView addAnnotation:point];
}
I need this to run when I click a button such as:
-(IBAction)addPin
{
}

Answer 1

In the viewDidLoad: method,
Create a button like this:
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self
action:#selector(showPinOnClick)
forControlEvents:UIControlEventTouchUpInside];
[button setTitle:#"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(100.0, 200.0, 150.0, 60.0);
[self.view addSubview:button];
// create the method defined as selector method for the UIButton in your viewcontroller
-(void) showPinOnClick{
//paste your code here to show the pin
CLLocationCoordinate2D location = self.mapview.userLocation.coordinate;
MKCoordinateRegion region;
MKCoordinateSpan span;
location.latitude = -32.008081;
location.longitude = 115.757671;
span.latitudeDelta = 0.03;
span.longitudeDelta = 0.03;
region.span = span;
region.center = location;
[_mapview setRegion:region animated:YES];
[_mapview regionThatFits:region];
//Create your annotation
MKPointAnnotation *point = [[MKPointAnnotation alloc] init];
// Set your annotation to point at your coordinate
point.coordinate = location;
point.title = #"Your Car";
//Drop pin on map
[_mapview addAnnotation:point];
[_mapview selectAnnotation:point animated:NO];
}