Where does the init *really* happen in a UIView placed in Interface builder?

I have a subclass of UIView called SlideOut. I want to capture the IB placement of the view when it loads, so I have this in my implementation:

- (id)initWithFrame:(CGRect)frame {

    self = [super initWithFrame:frame];
    if (self) {
    IBframe.origin.x = frame.origin.x;
  IBframe.origin.y = frame.origin.y;
  IBframe.size.height = frame.size.height;
     IBframe.size.width = frame.size.width;
        // Initialization code.
  NSLog(@"init if self x: %f, y: %f", IBframe.origin.x, IBframe.origin.y);
    }
 NSLog(@"init x: %f, y: %f", IBframe.origin.x, IBframe.origin.y);
    return self;
}

... with a matching prototype in the .h file.

Upon starting up the simulator, I get all my other diagnostics, but neither of these log messages get called. So how does the instance actually get initialized? Or am I missing something? The positio开发者_JS百科n function works, but then fails because I haven't captured the actual frame of the thing. In any case, that's how I know I made the IB connections correctly.

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Take a look here: Subclassing UIView, "Methods to Override", from UIView Class Reference.

In particular:

initWithCoder: - Implement this method if you load your view from an Interface Builder nib file and your view requires custom initialization.

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Objects that are loaded from an xib are actually unarchived. Thus, you should be using the initWithCoder: method. Alternatively, you may way to look at awakeFromNib instead.

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I believe the function that gets called when the view is loaded from a NIB is initWithCoder not initWithFrame