On Tue, Dec 21, 2010 at 11:59 AM, David Duncan <david.dun...@apple.com> wrote: > > Why do this synchronously at all? The web view already gives you a > notification, use that to generate your thumbnail and signal the caller.
What I’m trying to do is create a thumbnail for a PowerPoint that, when clicked, opens a web view with the PowerPoint inside. I’d like it to be synchronous so that I can create thumbnails on demand if they aren’t already created. I’ll probably move forward with something that creates a full-size image asynchronously on downloading the PowerPoint, then dynamically resize that image to make my thumbnail, but this feels like something that *should* be possible. > Also consider that if the rendering takes a significant time, blocking the > main thread *will* cause your application to be killed by the watchdog timer. > Basically trying to do this synchronously is not only a waste of time, but a > dead end that will fail for anything but the simplest of scenes. The alternative, then, would be to find a way to render a PPT on a background thread, which UIWebView doesn’t seem suited for. Thanks for your comments. Jeff Kelley _______________________________________________ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
