Pixel align your UIViews even when using the center property

SetViewCenter.m

@implementation UIView (PositionAtCenter)

-(void)centerPixelAligned:(CGPoint)p
{
    CGSize size = self.bounds.size ;

    p.x = floorf( p.x ) + 0.5 * fmodf( size.width, 2.0f ) ;
    p.y = floorf( p.y ) + 0.5 * fmodf( size.height, 2.0f ) ;

    self.center = p;
}

@end