Bonjour,

j'aimerais, à l'aide d'un UISlider, pouvoir zoomer sur une carte.

.h

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>

@interface ViewController : UIViewController
@property (weak, nonatomic) IBOutlet MKMapView *mapView;
@property (weak, nonatomic) IBOutlet UISlider *slider;
- (IBAction)slider:(id)sender;

@end

.m

- (IBAction)slider:(id)sender {
    if ( slider.value == 0 ) {
        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(
        mapView.userLocation.location.coordinate, 10000000, 10000000);
        [mapView setRegion:region animated:TRUE];
    }
    else if ( slider.value == 1 ) {
        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(
        mapView.userLocation.location.coordinate, 5000000, 5000000);
        [mapView setRegion:region animated:TRUE];
    }
    else if ( slider.value == 2 ) {
        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(
        mapView.userLocation.location.coordinate, 1000000, 1000000);
        [mapView setRegion:region animated:TRUE];
    }
    else if ( slider.value == 3 ) {
        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(
        mapView.userLocation.location.coordinate, 500000, 500000);
        [mapView setRegion:region animated:TRUE];
    }
    else if ( slider.value == 4 ) {
        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(
        mapView.userLocation.location.coordinate, 100000, 100000);
        [mapView setRegion:region animated:TRUE];
    }
    else if ( slider.value == 5 ) {
        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(
        mapView.userLocation.location.coordinate, 50000, 50000);
        [mapView setRegion:region animated:TRUE];
    }
    else if ( slider.value == 6 ) {
        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(
        mapView.userLocation.location.coordinate, 10000, 10000);
        [mapView setRegion:region animated:TRUE];
    }
    else if ( slider.value == 7 ) {
        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(
        mapView.userLocation.location.coordinate, 5000, 5000);
        [mapView setRegion:region animated:TRUE];
    }
    else if ( slider.value == 8 ) {
        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(
        mapView.userLocation.location.coordinate, 1000, 1000);
        [mapView setRegion:region animated:TRUE];
    }
    else if ( slider.value == 9 ) {
        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(
        mapView.userLocation.location.coordinate, 500, 500);
        [mapView setRegion:region animated:TRUE];
    }
    else if ( slider.value == 10 ) {
        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(
        mapView.userLocation.location.coordinate, 100, 100);
        [mapView setRegion:region animated:TRUE];
    }
}
@end

J'ai déjà réussi à faire fonctionne ce système avec un UIStepper, mais j'aimerais le faire avec un UISlider.

Le problème est donc que j'ai beau modifié la valeur du slider, il n'y a aucun zoom, SAUF aux extrémités..

Merci d'avance pour vos réponses