How do I position UIView in superview?

Question

Im adding a UIImageView with a UIImage which I wish to appear in the center top of the main UIView.

I will be using a UIPageControl to swipe that view off to the left and bring in the new one from the right. I have added the UIImageView which normally just adds it to the bottom right corner

-(void)createUIViews{
    UIImage *image1 = [UIImage imageNamed:@"GiftCard.png"];
    firstView = [[UIImageView alloc] initWithImage:image1];
    firstView.backgroundColor = [UIColor grayColor];
    firstView.tag = 1;
    firstView.autoresizingMask = (UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin);
}

Now I wish to position it at top center. So Im thinking of something like this:

CGRect newFrame = self.view.frame;
    newFrame.origin.x += 50;
    self.view.frame = newFrame;

    [self.view addSubview:firstView];

But when I add this code at the bottom of the previous one, (which btw is being called from viewDidLoad), the image still appears at the bottom right. How do I position it correctly?

score 3 · Accepted Answer · answered Mar 12 '13 at 20:49

3

Move your code to viewDidAppear. Bounds and frames are not guaranteed to have been set till viewWillAppear/viewDidAppear.

answered Mar 12 '13 at 20:49

Khaled Barazi

8,681
6
42
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Ok now I need to move animate it, from the UIPageControl, should I make another post? – marciokoko Mar 12 '13 at 21:02
Yes, I would make another post for animation since that is a more involved process. – Khaled Barazi Mar 12 '13 at 21:03

score 1 · Answer 2 · answered Mar 12 '13 at 21:01

1

Make sure you set your struts and springs appropriately and then just do this:

 -(void)viewWillAppear:(BOOL)animated 
  {
    [super viewWillAppear:animated];
    firstView.center = self.center;
  }

answered Mar 12 '13 at 21:01

Jack Freeman

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18

How do I position UIView in superview?

2 Answers2