Re: Accessing a property of a view via its controller doesn't work
Re: Accessing a property of a view via its controller doesn't work
- Subject: Re: Accessing a property of a view via its controller doesn't work
- From: Keary Suska via Cocoa-dev <email@hidden>
- Date: Sat, 4 Sep 2021 21:46:17 -0600
Perhaps a more germane question might be, are you sure that the view controller
has a relationship with any window? It is not necessary, as I understand, for a
view to exist in a window. A view controller can load a view without placing it
into a window, and therefore viewWillMoveToWindow: will not be called, and I
suspect the “window” property would be set. Breakpoints are your friend.
Keary Suska
Esoteritech, Inc.
"Demystifying technology for your home or business"
> On Sep 4, 2021, at 12:06 PM, Ben Kennedy via Cocoa-dev
> <email@hidden> wrote:
>
>
>> On Sep 4, 2021, at 10:27 AM, Gabriel Zachmann via Cocoa-dev
>> <email@hidden> wrote:
>>
>> I access the window of a view by two different ways, in the controller and
>> in the view, resp., and in the controller, I always get a nil pointer.
>>
>> In my app, I have a subclass of NSView, MyView, declared like this:
>>
>> @interface MyView : NSView <NSTextViewDelegate, CALayerDelegate,
>> CAAnimationDelegate>
>> {
>> NSWindow * window_;
>> ...
>> }
>> @property (readwrite) NSWindow * window_;
>
> What’s the purpose of this? NSView already has a `window` property that
> returns its parent window. Why not just use that?
>
> -ben
>
> Sent from my iPhone
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