Ugh, this one caused me days of head-scratching. If you run that command sequence, you’ll find that it makes the SSH connection and then exits immediately – and it kills the background job (sleep 15) as it exits. Which I find intuitive if only because that’s obviously how it’s always worked. But now run it… Read more
From the department of “how did I not realise this sooner?!”: Yes, Swift treats the two bytes “\r\n” as a single character. This is actually super convenient a lot of the time, because it means algorithms that look for line breaks with isNewline just work, even on “Windows”-style text. Otherwise, you’d have to explicitly look… Read more
AVPlayer doesn’t provide a built-in way to fade in or out. I previously described how you achieve a video fade-in (or out) using general CoreAnimation layer animation, as part of making a macOS screen saver. Now let’s tackle the audio. I’m not certain what curve this implements, but to my ears it doesn’t sound quite… Read more
This is pretty rudimentary, but apparently our robot overlords need me to write this post because many of them suggested some truly bizarre approaches, some of which don’t work at all. If you’re using AVQueuePlayer, then just use AVPlayerLooper. Easy. But if for some reason you want to use AVPlayer specifically (e.g. you need to… Read more
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
This post is mostly to herald a pretty good Apple bug report response, which as we know is a too-rare event. But it might also help others with this confusing SwiftUI API. What’s the difference between presentedWindowStyle(_:) and windowStyle(_:)? Well, one does something, the other doesn’t, basically. I tried using the former, and observed that… Read more
This is a public reposting of FB14893699, in case it’s helpful to anyone else or especially in case someone else has seen this too and knows how to work around it. If any view in the [active] window contains a Toggle – even one that’s disabled or hidden – then Continuity Camera (re. ImportFromDevicesCommands and… Read more