1/30秒に1ピクセルMKMapViewを右にスクロールさせるサンプル

gistfile1.m

#import <MapKit/MapKit.h>
#import "ViewController.h"

@interface ViewController ()

@property (weak, nonatomic) IBOutlet MKMapView *mapView;
@property (strong, nonatomic) NSTimer *timer;

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    _timer = [NSTimer scheduledTimerWithTimeInterval:1.0/30.0 target:self selector:@selector(tick) userInfo:nil repeats:YES];
}

- (void)tick
{
    CGPoint point = _mapView.center;
    UIScreen *screen = [UIScreen mainScreen];
    point.x += 1.0f / screen.scale;
    CLLocationCoordinate2D center = [_mapView convertPoint:point toCoordinateFromView:_mapView];
    [_mapView setCenterCoordinate:center];
}

@end