> Subject: Re: NSViewAnimation fade[In/Out]effect not working
> From: sli...@araelium.com
> Date: Thu, 15 Mar 2012 20:09:25 -0700
> To: cocoa-dev@lists.apple.com
>
> On Mar 15, 2012, at 7:49 PM, Shawn Bakhtiar wrote:
>
> > I am trying to fade in and out 4 different views based on the user clicking
> > on a tool bar item (each toolbar item representing a different page
> > (NSView) of the document.
> >
>
>
> > [[[wc window] contentView] addSubview:graph1View];
> > [[[wc window] contentView] addSubview:msds2View];
> > [[[wc window] contentView] addSubview:msds1View];
> > [[[wc window] contentView] addSubview:genView];
> >
> > …...
>
> >
>
> > - (void) fadeInView:(NSView *) fadeInView fadeOutView:(NSView *) fadeOutView
> > {
> > [[wc window] setContentView:fadeInView];
>
>
>
> This approach doesn't make sense. You're *immediately* removing the old view,
> replacing it with the new view, and then trying to fade in/out the two.
>
> You need both views to be in the window for the entire duration of the
> animation. That means the new view must be in the window before the animation
> starts, and the old view can only be removed after the animation ends.
>
> Instead of swapping out the content view of the window, you need to add these
> views as subviews of the content view, fade them as desired, and resize the
> window as needed.
>
>
Ok so now I'm thoroughly confused.
The API description of addSubView for an NSView is "Adds a view to the
receiver’s subviews so it’s displayed above its siblings." Don't I need to add
all the views to the NSDocument's conentView. This only happens once in
windowControllerDidLoadNib?
According to setHidden "It remains in its superview’s list of subviews,
however, and participates in autoresizing as usual", which is what should be
happening at the end of the fadeout animation.
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