On Jun 10, 2014, at 8:05 AM, Charles Carver <charlescar...@mac.com> wrote:
> Is it possible to set the contents of a CALayer to an animated GIF and have > it display that animation? No. > I know that I can set the contents to an image like so: > > CALayer* subLayer = [CALayer layer]; > NSImage *image = [[NSImage alloc] initWithData:data]; > subLayer.contents = image; > > And the image will show, but if it's animated, the animation will not > display. Is the only solution to get the individual frames for the GIF, get > the frame rate, then change the content of the sublayer according to the > frame rate? Using strictly CALayers, pretty much. > Or is there a much simpler method that I'm overlooking? > > Another idea I had was to have a blank NSImageView, then display it/fill it > with the GIF data if the active sublayer included an animated GIF. This kind > of worked, except only if the top-most NSView wasn’t using core animation. If > it was using core animation, the GIF would only play if the window was >= the > size of the GIF. If it was smaller, the GIF would simply stop playing (I even > reproduced this in its own test project, same behavior). But then turning off > core animation on the top view and having it enabled on the lower ones caused > a series of unideal behavior (lag, glitches, flickering), as I don’t think a > view hierarchy is supposed to be setup like that. > > Also, my reason for using core animation in the first place is because I'm > loading a fair number of images at once and then individually showing one at > a time. I started with just using an NSImageView, but the performance was > awful compared to core animation. > > Anyways, any other ideas? > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/cocoa-dev/david.duncan%40apple.com > > This email sent to david.dun...@apple.com -- David Duncan _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
