get to an UIView frame a zoom animation
^
     |
 <---.--->
     |
     v

view.frame = CGRectMake(0, 0, 20, 20);
CGPoint center = view.center;
[UIView animateWithDuration: 1.0f animation:^{
    view.frame = CGRectMake(0, 0, 300, 300);
    view.center = center;
}];

view.frame = CGRectMake(0, 0, 20, 20);
CGPoint origin = view.frame.origin.
[UIView animateWithDuration: 1.0f animation:^{
    origin.x -= (300 - 20) / 2;
    origin.y -= (300 - 20) / 2;
    view.frame = CGRectMake(origin.x, origin.y, 300, 300);
}];

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
    CGPoint center = zoomerView.center;
    [UIView animateWithDuration:1 animations:^{
        zoomerView.transform = CGAffineTransformScale(zoomerView.transform, 1.2, 1.2);
    }];
}

[UIView animateWithDuration:secs delay:1.0 options:option
                     animations:^{
                         yourview.transform = CGAffineTransformScale(view.transform, 100.0, 100.0);
                     }
                     completion:nil];