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  1. PO
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    <p>Don't subclass it, encapsulate it instead ;)</p> <p>Make a new UIView subclass - your header file would look like :</p> <pre><code>@interface MySubclass : UIView @end </code></pre> <p>And just have a UIScrollView as a subview - your .m file would look like :</p> <pre><code>@interface MySubclass () &lt;UIScrollViewDelegate&gt; @property (nonatomic, strong, readonly) UIScrollView *scrollView; @end @implementation MySubClass @synthesize scrollView = _scrollView; - (UIScrollView *)scrollView { if (nil == _scrollView) { _scrollView = [UIScrollView alloc] initWithFrame:self.bounds]; _scrollView.delegate = self; [self addSubView:_scrollView]; } return _scrollView; } ... your code here ... @end </code></pre> <p>Inside your subclass, just always use <code>self.scrollView</code> and it will create the scroll view the first time you ask for it.</p> <p>This has the benefit of hiding the scroll view completely from anyone using your <code>MySubClass</code> - if you needed to change how it worked behind the scenes (i.e. change from a scroll view to a web view) it would be very easy to do :)</p> <p>It also means that no-one can alter how you want the scroll view to behave :)</p> <p>PS I've assumed ARC - change <code>strong</code> to <code>retain</code> and add <code>dealloc</code> if necessary :)</p> <hr> <p>EDIT</p> <p>If you want your class to behave <em>exactly</em> as a UIScrollView then you could try this adding this method (taken from <a href="https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/ObjCRuntimeGuide/Articles/ocrtForwarding.html" rel="nofollow">these docs</a> and untested!) :</p> <pre><code>- (void)forwardInvocation:(NSInvocation *)anInvocation { if ([self.scrollView respondsToSelector:anInvocation.selector]) [anInvocation invokeWithTarget:self.scrollView]; else [super forwardInvocation:anInvocation]; } </code></pre>
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    1. POHow to subclass UIScrollView and make the delegate property private
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    1. COOk, i thought of this too, but the disadvantage of this approach is that you have to reimplement the whole uiscrollview api in case you want that the subclass acting like its base class. This can still be solved by forwarding all unknown method calls to another target with the use of forwardInvocation:(NSInvocation*)invocation. The problem here is, that i have a two targets to forward to depending on the message called. If its a delegate method (e.g. scrollViewDid...) i want to forward to the "outer" delegate and if its an instance method of the scrollview i want to forward to the scrollview.
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    2. COAh, I didn't realise you wanted it to behave exactly as a scroll view would. My edit should let you behave _mostly_ like a UIScrollView I think.
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