Plot pin does not point exact place on MKMapView - ios

Question

- (void)viewDidLoad
{
UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(foundTap:)];
tapRecognizer.numberOfTapsRequired = 1;
tapRecognizer.numberOfTouchesRequired = 1;
[self.myMapView addGestureRecognizer:tapRecognizer];
}
-(void)foundTap:(UITapGestureRecognizer *)recognizer
{
CGPoint point = [recognizer locationInView:self.myMapView];
CLLocationCoordinate2D tapPoint = [self.myMapView convertPoint:point toCoordinateFromView:self.view];
MKPointAnnotation *point1 = [[MKPointAnnotation alloc] init];
point1.coordinate = tapPoint;
[self.myMapView addAnnotation:point1];
}
I used above code to make pin point on MKMapView when i choose a place in MKMapView it does not point where i exactly touches.It goes little far where i touches.What is wrong with my code?.any help will be appreciated.thanks in advance.

Answer 1

Try changing the passed-in object to the locationInView: method to self.view:
-(void)foundTap:(UITapGestureRecognizer *)recognizer
{
CGPoint point = [recognizer locationInView:self.view];
CLLocationCoordinate2D tapPoint = [self.myMapView convertPoint:point toCoordinateFromView:self.view];
MKPointAnnotation *point1 = [[MKPointAnnotation alloc] init];
point1.coordinate = tapPoint;
[self.myMapView addAnnotation:point1];
}

Answer 2

I know the other answer is working for you, but I just wanted to show the proper way to use convertPoint:toCoordinateFromView:. Instead of passing it the container view, it should be passed the map view that the point is in:
CLLocationCoordinate2D tapPoint = [self.myMapView convertPoint:point
toCoordinateFromView:self.myMapView];
That saves swapping between views. Here's the full method:
-(void)foundTap:(UITapGestureRecognizer *)recognizer
{
CGPoint point = [recognizer locationInView:self.myMapView];
CLLocationCoordinate2D tapPoint = [self.myMapView convertPoint:point toCoordinateFromView:self.myMapView];
MKPointAnnotation *point1 = [[MKPointAnnotation alloc] init];
point1.coordinate = tapPoint;
[self.myMapView addAnnotation:point1];
}