Why my user location is always in center?

Question

i have a map in my app,i set the center user location when map is open. I have used this code:

 map.delegate=Self; 
 ......
-(void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation {

MKCoordinateRegion mapRegion;
mapRegion.center = self.mapView.userLocation.coordinate;
mapRegion.span = MKCoordinateSpanMake(0.5, 0.5); //Zoom distance
[self.mapView setRegion:mapRegion animated: YES];
}

But when i move map it came back to user location. How can i move free into my map without care user location?

score 2 · Accepted Answer · answered Feb 13 '15 at 11:04

2

This is because you are resetting the location every time the user's location changes. You should do this only once, e.g.

-(void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation {

    if (self.centerToUserLocation)
    {
        MKCoordinateRegion mapRegion;
        mapRegion.center = self.mapView.userLocation.coordinate;
        mapRegion.span = MKCoordinateSpanMake(0.5, 0.5); //Zoom distance
        [self.mapView setRegion:mapRegion animated: YES];
        self.centerToUserLocation = NO;
    }
}

Where centerToUserLocation is something like @property (nonatomic) BOOL centerToUserLocation

answered Feb 13 '15 at 11:04

hypercrypt

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I have used your code but the result the same.when i move map it came back. – Gianluca Carpi Feb 13 '15 at 11:13
Are you calling -[MKMapView setRegion:animated:] anywhere else? – hypercrypt Feb 13 '15 at 11:40
No,i have called -[MKMapView setRegion:animated:] just only in didUpdateUserLocation,but i thinks that it call the same when i move out from user location. – Gianluca Carpi Feb 13 '15 at 13:49
Where are you setting `self.centerToUserLocation` to `YES`? – hypercrypt Feb 13 '15 at 14:44

Why my user location is always in center?

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