UIView center with CGAffineTransformScale

// Demonstrates that the center point of a view remains the same during
// use of CGAffineTransformScale
#import "ViewController.h"

@interface ViewController ()
@property(readwrite) UIView* icon;
@end

@implementation ViewController

@synthesize icon;

- (void)viewDidLoad
{
    [super viewDidLoad];

    CGRect bounds = CGRectMake(10, 10, 100, 100);
    UIView* v = [[UIView alloc] initWithFrame: bounds];
    [v setBackgroundColor:[UIColor yellowColor]];
    [self.view addSubview:v];

    icon = v;
}

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (void)viewDidAppear:(BOOL)animated
{
    NSLog(@"Previous center: %@", NSStringFromCGPoint(self.icon.center));

    [UIView animateWithDuration:1.2
              delay:1.0
            options:0
         animations:^{
             NSLog(@"Before center: %@", NSStringFromCGPoint(self.icon.center));

             CGAffineTransform transform = self.icon.transform;
             self.icon.transform = CGAffineTransformScale(transform, 0.5, 0.5);

             NSLog(@"After center: %@", NSStringFromCGPoint(self.icon.center));
         }
         completion:^(BOOL finished){
             // nothing
             NSLog(@"Completion center: %@", NSStringFromCGPoint(self.icon.center));
         }];

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
        return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
    } else {
        return YES;
    }
}

@end