iOS - Adding TileStream cache to MapKit

iOS - Adding TileStream cache to MapKit

@interface MapViewController()

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

@property (nonatomic, strong) MKTileOverlay *overlay;

@end



@implementation MapViewController

@synthesize mapView = _mapView;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    
    if (self) {
        
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{

    NSString *template = @"http://1.2.3.4:8888/v2/bangladesh_districts/{z}/{x}/{y}.png";
    
    self.overlay = [[MKTileOverlay alloc] initWithURLTemplate:template];
    
    self.overlay.canReplaceMapContent = YES;
    
    [self.mapView addOverlay:self.overlay level:MKOverlayLevelAboveLabels];
}

- (MKOverlayRenderer *)mapView:(MKMapView *)mapView rendererForOverlay:(id<MKOverlay>)overlay  {
    
    return [[MKTileOverlayRenderer alloc] initWithOverlay:overlay];
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    
    self.overlay = nil;
}

@end