plentz

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

lukeredpath

@implementation MySharedThing

+ (id)sharedInstance
{
  DEFINE_SHARED_INSTANCE_USING_BLOCK(^{
    return [[self alloc] init];
  });
}

@end

zssz

- (void)scrollWithOffset:(CGSize)offset animated:(BOOL)animated
{
	MKMapPoint centerMapPoint = MKMapPointForCoordinate(self.centerCoordinate);
	
	CGPoint centerPoint = [self convertCoordinate:self.centerCoordinate toPointToView:self];
	CGPoint destinationPoint = CGPointMake(centerPoint.x+offset.width, centerPoint.y+offset.height);
	CLLocationCoordinate2D destinationCoordinate = [self convertPoint:destinationPoint toCoordinateFromView:self];
	MKMapPoint destMapPoint = MKMapPointForCoordinate(destinationCoordinate);
	
	MKMapRect mapRect = self.visibleMapRect;