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POView placeholders replacement with xib using the awakeAfterUsingCoder method
 

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  1. POView placeholders replacement with xib using the awakeAfterUsingCoder method
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    <p>I am currently working on an iOS app that has multiple xibs containing a UIView subclass which is acting as a placeholder for the header of the screen. When the view controllers are loaded from their nib, they instantiate the HeaderView placeholder. In the HeaderView class I have a method that replace the placeholder view by the real one, here is the code : </p> <pre><code>- (id)awakeAfterUsingCoder:(NSCoder *)aDecoder { if (![[self subviews] count]) { if (headerViewNib == nil) headerViewNib = [UINib frameworkNibWithNibName: @"HeaderView"]; HeaderView * headerView = [[headerViewNib instantiateWithOwner: controller options: nil] lastObject]; [headerView setTranslatesAutoresizingMaskIntoConstraints: NO]; return headerView; } return self; } </code></pre> <p>Until now, everything works correctly. But now I need to add a menu similar to a popover to the header. So I added a UIButton to the HeaderView xib, as expected it is showing in all the view controllers, but now I need to manage the touch on that button. I added a "- (IBAction)showHeaderMenu" method to my base UIViewController class, and I configured in the HeaderView.xib the file's owner to this class, so I could connect the button touch action, to the showHeaderMenu action. The problem is that I am passing "controller" as owner to the instantiateWithOwner:options: method. But this controller is nil. So my touch events on the menu button are not handled.</p> <p>So now I am searching a way to get the "controller" property set correctly. At the moment in all my view controllers xib, I connected the placeholder headerview "controller" outlet to the file's owner (which is the controller), but it does not seems to be working.</p> <p>If you have a different pattern to suggest, that does not force me to drop my HeaderView.xib or the placeholders view, i'm open :)</p>
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