Render maps in iOS 7 +

MapViewRenderer.h

#import <MapKit/MapKit.h>

typedef void (^MapViewRendererCallback)(UIImage *image);

@interface MapViewRenderer : NSObject

+ (void)renderMapRect:(MKMapRect *)mapRect withSize:(CGSize)size completion:(MapViewRendererCallback)block;

@end

MapViewRenderer.m

#import "MapViewRenderer.h"

@implementation MapViewRenderer

+ (void)renderMapRect:(MKMapRect *)mapRect withSize:(CGSize)size completion:(MapViewRendererCallback)block {
	MKMapSnapshotOptions *options = [[MKMapSnapshotOptions alloc]init];
	options.region = MKCoordinateRegionForMapRect(mapRect);
	options.scale = [UIScreen mainScreen].scale;
	options.size = size;

	MKMapSnapshotter *snapshotter = [[MKMapSnapshotter alloc]initWithOptions:options];
	[snapshotter startWithCompletionHandler:^(MKMapSnapshot *snapshot, NSError *error) {
    		block(snapshot.image);
	}];
}

@end