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168

answers:

1

I have a subclass of UIView that needs to calculates it's height according to it's width. When created in code everything works. However when I try to create the view in Interface builder, and although I override all related methods, I can't get the size of the view set in interface builder.

- (id)initWithCoder:(NSCoder *)aDecoder
{
    NSLog(@"init with coder before super width %d",super.frame.size.width); // returns 0
    self = [super initWithCoder:aDecoder];
    NSLog(@"init with coder after super width %d",super.frame.size.width); // still returns 0
}

- (void) awakeFromNib
{
      NSLog(@"width of view %d",super.frame.size.width); // Returns 0 as well
}

- (void) setFrame:(CGRect)aFrame
{
    [super setFrame:aFrame]; // Called from initWithCoder by super. Correct frame size. 
}  

So my next guess was the maybe the superview of my view is setting my view's frame after awakeFromNib. Well it turns out it doesnt. I overrided setFrame on my view, and it is called during initWithCoder.

So this is what I know so far:

  1. First initWithCoder is called
  2. During initWithCoder a call to setFrame:(CGRect)aFrame is sent
  3. in setFrame the size of the frame is correct, and I call [super setFrame:aFrame]
  4. awakeFromNib is called
  5. super.frame.size.width = 0 in awakeFromNib self.frame.size.width is also 0
  6. When the process is done, it seems that the view is a few pixels below where it's suppose to be, but I guess my code get so massed up with the dimensions that it might be something I do.

Any help will be appreciated

A: 

OK This issues in now solved. I don't know exactly why but here a couple of things:

  1. Trying to print frame.size.width as %d will always give you 0 since width is float and %f should be used - This probably threw me off the real problem.
  2. Once I fixed my debugging messages, and cleared my code a bit, everything just worked. No real idea as to why. I've done a lot of changes to my code since posting this, so I guess one of them solved this issue.
Ron Srebro