I had to get the coordonate of a point where the user touch on a MKMapView. I'm not working with the Interface Builder. Can you give me one example or a link.
Thanks a lot
Source: Tips4all
Source: Tips4all
I am looking to create a system which on signup will create a subdomain on my website for the users account area.
You can use a UILongPressGestureRecognizer for this. Wherever you create or initialize the mapview, first attach the recognizer to it:
ReplyDeleteUILongPressGestureRecognizer *lpgr = [[UILongPressGestureRecognizer alloc]
initWithTarget:self action:@selector(handleLongPress:)];
lpgr.minimumPressDuration = 2.0; //user needs to press for 2 seconds
[self.mapView addGestureRecognizer:lpgr];
[lpgr release];
Then in the gesture handler:
- (void)handleLongPress:(UIGestureRecognizer *)gestureRecognizer
{
if (gestureRecognizer.state != UIGestureRecognizerStateBegan)
return;
CGPoint touchPoint = [gestureRecognizer locationInView:self.mapView];
CLLocationCoordinate2D touchMapCoordinate =
[self.mapView convertPoint:touchPoint toCoordinateFromView:self.mapView];
YourMKAnnotationClass *annot = [[YourMKAnnotationClass alloc] init];
annot.coordinate = touchMapCoordinate;
[self.mapView addAnnotation:annot];
[annot release];
}
YourMKAnnotationClass is a class you define that conforms to the MKAnnotation protocol. If your app will only be running on iOS 4.0 or later, you can use the pre-defined MKPointAnnotation class instead.
For examples on creating your own MKAnnotation class, see the sample apps WeatherMap and MapCallouts.
I have a UIImageView with a UILongPressGestureRecognizer attached that never seems to detect a long press gesture no matter how I configure the gesture recognizer.
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