First, make sure you really want to. macOS’s screen saver system is absurdly buggy and broken. It’s frustrating to work with and very difficult to make work right. If you’re determined, read on. Screen savers are basically just applications. Same bundle format and structure, just with a “saver” extension instead of “app”. Setting up the… Read more
Sometimes you just need to shove a round peg into a square hole. Sometimes that genuinely is the best option (or perhaps more accurately: the least bad option). I find my hand is often forced by APIs I don’t control (most often Apple’s APIs). e.g. data source or delegate callbacks that are synchronous and require… Read more
Consider these two examples involving Flickr, that occurred within just one day of each other. Nice gal Amanda I submitted the following feedback, not really expecting much of it. In fact, I fully expected some useless, boilerplate response that completely ignored the point and directed me to the upload requirements page (despite it being the… Read more
How do you determine if one string starts with another, in Swift? Surely that’s exactly what the hasPrefix(_:) method is for: No can haz etiquette? Wot? The problem is that hasPrefix is not meant for general use with human text; it’s barely better than a byte-wise comparison. It only guarantees that it won’t be fooled… Read more
I must admit, the Messages team have done a somewhat good job of making Messages pretend to be a native Mac app, at least in my experience – most of the time it works as it should. But then it’s a very simple app which I use in a pretty limited fashion. Even so, there… Read more
SwiftUI doesn’t offer anything equivalent to NSFilePromiseProvider, i.e. to write data to the drop destination. You have to ditch SwiftUI and use AppKit’s drag & drop APIs instead. FB13583826. Is that it? I know that’s not a very helpful in some sense, but I wasted days trying to figure out how to implement this very… Read more
Failed to get a sandbox extension Right from there, you know you’re going to have a bad day. 😔 Then you try to actually use the file dropped on your app, and you get: Upload preparation for claim 1C0F9013-4DEB-4E5D-8896-F522AA979BA6 completed with error: Error Domain=NSCocoaErrorDomain Code=513 ““Example.jpg” couldn’t be copied because you don’t have permission to… Read more